CETAC XLR-8 Extended Rack Autosampler …XLR-8 Autosamplers Operator’s Manual Chapter 1:...

CETAC XLR-8 Extended Rack Autosampler

Manual Part Number 480192 Rev 2

Operator’s Manual

COPYRIGHT

© 2012-2013 CETAC Technologies

480192 Rev 2 , July, 2013

CETAC Technologies authorizes its customers to reproduce, transmit, or store this document in its entirety, including this page, for the express purpose of installing, operating, or maintaining the product described herein. CETAC Technologies Customer Service & Support 14306 Industrial Road Omaha, Nebraska 68144, USA Phone (800) 369-2822 (USA only) Phone (402) 733-2829 Fax (402) 733-1932 E-mail [email protected]

REVISIONS

CETAC Technologies strives to provide the scientific community with an unparalleled combination of effective technology and continuing value. Modular upgrades for existing instruments will continue to be a prime consideration as designs progress.

CETAC Technologies reserves the right to revise this document and/or improve products described herein at any time without notice or obligation. Warranty registration entitles the named owner exclusively to manual change pages/new editions as they are published.

TRADEMARK ACKNOWLEDGEMENTS

Windows is a registered trademark of Microsoft Corporation in the United States and other countries.

PharMed and Tygon are registered trademarks of Saint-Gobain Performance Plastics.

DuPont™, Kapton®, Teflon®, Tefzel® and Viton® are trademarks or registered trademarks of E.I. du Pont de Nemours and Company.

Ultem is a trademark of SABIC Innovative Plastics IP BV.

KYNAR® is a registered trademark of Arkema Inc.

All other marks are the property of their respective owners.

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Contents 1 Introduction .............................................................................................................. 7

Overview.................................................................................................................................... 7 About This Book ..................................................................................................................... 7

Who Should Read This Book ...................................................................................... 7 XLR-8 Standard Components ........................................................................................... 8 Additional Equipment Required ................................................................................... 10 Optional Accessories .......................................................................................................... 10 Chemical Compatibility ..................................................................................................... 12 Where to Go for More Information .............................................................................. 13

2 Preparing for Installation ................................................................................. 15

Choosing a Location ............................................................................................................ 15 Space Requirements .................................................................................................... 15 Work Surface Requirements .................................................................................... 16 Rinse Solution Requirements ................................................................................... 16 Liquid Waste Routing Requirements ................................................................... 16 Power Requirements................................................................................................... 16

Unpacking the XLR-8 .......................................................................................................... 17

3 Installing the XLR-8 ............................................................................................. 19

Overview .......................................................................................................................... 19 Mounting the Head Assembly onto the Extended Rack ...................................... 20 Connecting the Cables........................................................................................................ 21 Installing the Rinse Station.............................................................................................. 23 Mounting the Z-Drive Assembly ................................................................................... 25 Assembling and Placing the Sample Rack and Vials ............................................ 32 Connecting the Autosampler to the Power Supply ............................................... 34 Connecting the Autosampler to an Analytical Instrument ................................ 35 Connecting the Autosampler to the Host Computer ............................................ 35

Communication Protocols ........................................................................................ 35 Establishing an RS-232 Serial Communications Interface ................................ 36 Establishing a USB Communications Interface ...................................................... 37 Establishing an IEEE Communications Interface .................................................. 41 Loading XLR-8 Tray Files ................................................................................................. 41 Using the XLR-8 with the CETAC ASXPRESS® PLUS Rapid Sample

Introduction System .................................................................................................. 41

4 Verifying Installation .......................................................................................... 43

Testing the Communications Interface ...................................................................... 43 Checking the Autosampler Components ................................................................... 44 Testing the Sample Probe ................................................................................................ 44

5 Using the XLR-8 ..................................................................................................... 47

XLR-8 Autosampler Operator’s Manual

Contents

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Establishing Optimal Operating Conditions ............................................................ 47 Creating the Lab Environment ............................................................................... 47 Replacing Auto Sampler Components ................................................................. 48 Purchasing Supplies ................................................................................................... 48

Arranging the Sample Vial Racks ................................................................................. 49 Starting the XLR-8 ............................................................................................................... 49 Shutting Down the XLR-8 ................................................................................................ 50 Flushing the Rinse Station and Flow Path ................................................................ 50

6 Maintaining the XLR-8 ........................................................................................ 53

Cleaning the XLR-8 ............................................................................................................. 53 Daily External Cleaning ............................................................................................ 53 Weekly/Thorough Cleaning .................................................................................... 54

Checking for Leaks .............................................................................................................. 55 Installing and Adjusting the Sample Probe .............................................................. 55

Removing the Sample Probe ................................................................................... 55 Installing the Sample Probe .................................................................................... 55

Setting the Z-Axis Travel .................................................................................................. 56 Installing and Adjusting the Z-Drive Cable .............................................................. 57 Replacing the Rinse Station Tubing ............................................................................ 58 Replacing Peristaltic Pump Tubing ............................................................................. 61 Replacing the Sample Probe ........................................................................................... 61 Adjusting the Movement Speed .................................................................................... 61 Replacing the Sample Tray .............................................................................................. 63

7 Troubleshooting the XLR-8 ............................................................................... 65

Power System Problems .................................................................................................. 65 Communications Interface Problems ......................................................................... 66

RS-232 Serial Cable Problems ................................................................................ 66 USB Cable Problems.................................................................................................... 66 Software Configuration Problems ........................................................................ 67

Alignment Problems .......................................................................................................... 67 Z-Drive Assembly Problems ........................................................................................... 68 Returning the Product to CETAC for Service .......................................................... 69

Shipping the Product .................................................................................................. 69 Product Warranty Statement ................................................................................. 69 Returned Product Procedures ................................................................................ 70 Returned Product Warranty Determination .................................................... 71

8 Operating the XLR-8 Using a Terminal Program ...................................... 73

Using C-Term™ ..................................................................................................................... 73 Starting C-Term ........................................................................................................... 73 Overview of the C-Term Window ........................................................................... 74 Configuring C-Term .................................................................................................... 75 Setting Preferences ..................................................................................................... 75

Using HyperTerminal ........................................................................................................ 76 Autosampler Commands .................................................................................................. 80

9 Safety and Regulatory Information ................................................................ 81

Characteristics ...................................................................................................................... 81 Environmental Characteristics .............................................................................. 81 Electrical Characteristics ......................................................................................... 82

Safety Notices ........................................................................................................................ 84

XLR-8 Autosamplers Operator’s Manual

Contents

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Power Cord Set Requirements ................................................................................ 84 Power Cord Safety Maintenance ............................................................................ 84 Mains Disconnect ......................................................................................................... 84 Cleaning Instructions ................................................................................................. 85 Mechanical Hazards ................................................................................................... 85 Operating Environment............................................................................................. 86 Explanation of Caution and Warning Notices .................................................. 87

Avertissements en Français ............................................................................................ 88 Electromagnetic Interference ........................................................................................ 88 Explanation of Regulatory Marks ................................................................................. 89

10 Glossary ................................................................................................................... 91


Contents

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1 Introduction

Overview The CETAC XLR-8 extended rack autosampler is designed to be sturdy, reliable, and easy to use. It provides automated sample introduction that enables you to perform other tasks while the autosampler runs.

The XLR-8 autosampler automatically introduces up to 720 samples when fully loaded. It contains a microprocessor that allows sequential or random sampling, providing flexibility. The XLR-8 is typically interfaced to and controlled by the analytical instrument host computer using a serial or USB connection. The XLR-8 is both contamination and corrosion resistant and offers a completely inert flow path.

About This Book This manual describes the procedures for installing, using, and maintaining the CETAC XLR-8.

Who Should Read This Book

The primary audience for this manual consists of analytical chemists and lab technicians. To use this manual effectively, you should have a basic knowledge of chemistry, a basic knowledge of electronic sampling equipment, at least a beginning level of computer experience, and working knowledge of the analytical instrument used with the sample introduction system.

CHEMICAL INJURY HAZARD The XLR-8 is intended for use only by qualified operators who have been trained in safe laboratory practices. Make sure you know the hazards associated with all of the chemicals you are using, and take the appropriate precautions. Exposure to laboratory chemicals may result in serious injury.

WARNING


Chapter 1: Introduction

8

XLR-8 Standard Components

Figure 1-1. XLR-8 Autosampler—Front View

The following components are located on the front of the autosampler and are shipped with the autosampler.

Sample Tray. The sample tray has 10 rear standard positions and accommodates up to 8 sample vial racks. Ribs located on the bottom of the sample tray hold the sample vial racks in place.

Sample Vial Racks. XLR-8 includes eight sets of sample vial racks. You can choose from five different rack sizes (with either 21, 24, 40, 60 or 90 vials per rack). You can combine racks of different sizes as long as the host computer’s software accepts the combination.

Standards Vials. Ten standards vials are included with the autosampler. The standards vials, which fit into the standards positions on the front of the autosampler head, are 50-milliliter conical centrifuge vials with caps.

Flowing Rinse Station. The rinse station is located in the extreme left position of the autosampler head. It comes with tubing used to connect the rinse station to the rinse source and the waste container.

Z-Drive Assembly. The Z-drive assembly moves the sample probe vertically. The Z-drive assembly includes a Y-axis slider block and guide plate as well as the sample probe. The Z-drive assembly attaches onto the autosampler arm.

Arm. The arm moves the sample probe horizontally (along the Y-axis).

Power Indicator Lamp. The LED indicates that the autosampler is connected to a power source and turned on.

Z-Drive with Sample Probe

Rinse Station

Standards Rack

Sample Vial Racks

Sample Tray



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The following standard components are located on the back of the XLR-8 and are shipped with the autosampler.

Figure 1-2. XLR-8 Autosampler-Back View

Power Switches. One switch controls the whole system; the other switch controls just the autosampler head.

On-Board Rinse Pump. The on-board two-channel peristaltic pump is located in the lower right-hand corner on the back of the autosampler. The pump moves the rinse solution from the rinse source through the flowing rinse station.

24VDC Input. The six-pin jack for 24VDC input from the power module.

Two RS-232 serial I/O ports (COM1 and COM2). The serial ports are located on the left side at the back of the autosampler. The COM1 port is the communications interface between the XLR-8 and the analytical instrument’s host computer.

USB Port. The USB port can be used to interface the autosampler with the host computer.

Auxiliary I/O Connector. The optional auxiliary connector allows bidirectional triggering between the autosampler and other devices.

The following standard components are also shipped with the XLR-8:

External Desktop Power Supply. A desktop "brick" transformer powers both the extended rack and the autosampler head.

Sample Probe Kit. The kit includes the sample probe. The sample probe fits into the Z-Drive assembly.

Communication Cables. The kit includes DB9F port adapters for host computers with normal AT-style DTE serial ports, and a 1.828-meter modular cable. The kit also includes a USB cable.

CD. The CD contains, if applicable:

C-Term software (terminal program)

Chain

Base

XLR-8 Power Switch

Peristaltic Pump

USB Port Serial Ports XLR-8 Power Connectors

Autosampler Head Power Connector

Autosampler Head Power Switch



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USB device drivers Firmware This manual Spare parts catalog Other application-specific information

Supplied components may depend on the application and the exact version of the autosampler. See the packing list in the shipping container to see exactly which components are supplied.

Additional Equipment Required In addition to the provided equipment, you will need:

A host computer which has been configured with the ICP software. This computer must have an additional free USB or serial port beyond the ports required to control the autosampler, spectrometer, and other system components.

Optional Accessories If you are doing a specialized type of analysis or are connecting the XLR-8 to a host computer that uses a non-RS-232 communications protocol, you may need optional accessories in addition to the standard components included with the autosampler. See the XLR-8 Spare Parts Catalog and the ASX-520 Spare Parts Catalog for details. The following accessories are available for the XLR-8:

Sample Vials and Racks.

IEEE-488 Interface Kit. The kit includes an RS-232/IEEE-488 converter box, an IEEE-488 cable, a power cord, and instructions. It is used to convert an IEEE communications protocol to a serial protocol.

Serial Interface Null Adapter. The null adapter replaces one DB9F port adapter at the host computer. It is used for computers with DCE-AT style serial ports.

Serial Interface Special Adapter Kit. The adapter kit replaces one or both standard serial port adapters with unwired DB9M, DB25M, and DB25F adapters for special applications or host computers with serial ports not conforming to the RS-232 standard.

Z-Drive Assembly with Forti-Flex Nylon Drive Cable. The nylon cable flexes when an obstruction to Z-axis motion is encountered, thereby reducing the possibility of kinking and improving reliability.

Sample Probes. Extra probes, made from carbon fiber (standard) or Ultem® (amorphous thermoplastic polyetherimide resin, optional), are available in a variety of diameters. See table below for probe sizes.

0.3 mm ID Black band

0.5 mm ID Blue band

0.8 mm ID Red band



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0.9 mm ID Yellow band

1.0 mm ID 2 Blue bands

Table 1 Sample probe sizes and color coding

NOTE:

Contact CETAC Technologies if you need additional accessories not listed, need added features to integrate the autosampler into your analytical system, or have unique requirements. Research and development of new features and accessories for the autosampler, often inspired by customer requests, is a continuing activity at CETAC Technologies.



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Chemical Compatibility Autosampler components are made of corrosion-resistant stainless steel alloys or anodized aluminum. The enclosure and base are made from a high-strength aluminum alloy that is treated with a RoHS-compliant chemfilm and finished with an epoxy powder coating.

The XLR-8 operates reliably under a wide variety of conditions. Flow path components can be selected from a variety of materials including PEEK, polytetrafluoroethylene (PTFE, DuPont Teflon), or Tygon. Sample vial choices include PFA and polypropylene. When these inert, non-metallic materials are used at temperatures less than 135°C, they can withstand repeated exposure to the following substances:

Predominantly aqueous solutions of strong acids (less than 40%)

Predominantly aqueous solutions of strong bases (less than 10%)

Common organic solvents such as acetone, alcohols, ethyl acetate, Methylethylketone (MEK), petroleum oils and derived fuels, tetrachloroethylene, toluene, kerosene and xylene.

DAMAGE FROM CHEMICAL EXPOSURE Prolonged or repeated exposure to temperatures greater than 135° C and to the following substances can cause failure of the flow path components: • Solutions of concentrated acids (greater than 40%). • Solutions of concentrated bases (greater than 10% potassium, ammonium, or sodium hydroxides). • Partially halogenated hydrocarbons or extremely aggressive organic solvents (chloroform, methylene dichloride, 1,1,2-trichloroethane).

CHEMICAL HAZARD Do not use the autosampler with substances which could pose a hazard of serious injury to the operator if spilled or injected, such as biological substances or formic acid.

CAUTION

WARNING



13

Where to Go for More Information In addition to this manual, you can refer to the following resources:

New versions of this manual may be available under “Service and Support” on CETAC’s Web site:

www.cetac.com

XLR-8 Autosampler Spare Parts Catalog, available on the CD-ROM or under "Parts" on CETAC’s Web site.

XLR-8 Upgrade Kit Installation Guide, for upgrading an existing ASX-520 autosampler.

ASX-130/260/520/EXR-8 Autosampler Software Developer’s Manual available on request from CETAC.

CETAC Technologies Customer Service and Support: Phone: 1 (800) 369-2822 (USA only) 1 (402) 733-2829 Fax: 1 (402) 733-1932 E-mail: [email protected]

The software manual for the analytical instrument you are using



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15

2 Preparing for Installation

Installing the XLR-8 requires preparation. Before you install the autosampler, you should evaluate the physical arrangement of the laboratory to choose a suitable location. Once you choose a location, you must carefully unpack the autosampler prior to beginning the installation.

This chapter discusses what requirements must be met when you choose a location. It also describes how to unpack the equipment before installation.

Choosing a Location Choosing a location for the autosampler involves evaluating the lab environment for the availability of space, liquid waste routing and power. For the system to function optimally, the location you select must meet specific requirements associated with each of these items. The following sections discuss space, water, and power requirements.

Space Requirements

Most analytical applications benefit from utilizing the shortest sample flow path. Therefore, you should place the autosampler in close proximity to the analytical instrument. The recommended footprint for the autosampler is shown in the following table.

Dimensions Recommended Space

Height varies 66 cm (26")

Width 99 cm (39") 114 cm (45")

Depth 51 cm (20") 61 cm (24")

Weight 21 kg (46 lbs)

Table 2: Physical Characteristics – XLR-8

The weight shown is that of the autosampler itself, without the desktop power supply or other accessories. The height includes the probe and sample tubing.


Chapter 2: Preparing for Installation

16

Allow at least 5 cm behind the autosampler for cable egress and access to the power switch. Always position the equipment so that it is easy to disconnect the power cord.

Work Surface Requirements

The autosampler must be placed on a sturdy countertop or table. The autosampler may be placed on a sturdy, wheeled cart if the wheels can be securely locked. Do not place on a folding table.

During operation, the autosampler produces both vertical and horizontal forces. If the work surface is allowed to shake or wobble, the autosampler may “walk” across the surface, liquids may spill, or data quality may be affected.

Rinse Solution Requirements

For most applications, deionized water is used as the rinse agent in the XLR-8. If a different rinse agent is routinely used, place the rinse agent source within two meters of the XLR-8.

CHEMICAL INHALATION AND BURN HAZARD Observe all necessary safety precautions when handling nitric acid (HNO3) solutions. Wear appropriate personal protective equipment, including face shield or goggles, gloves, and a laboratory coat, and ensure that engineering controls (such as ventilation systems) are operating properly.

Liquid Waste Routing Requirements

Ensure that there is a liquid waste receptacle within two meters of the autosampler. The waste receptacle inlet should be 30 to 60 centimeters lower than the autosampler rinse station outlet and set up so that the rinse drain tubing drops directly into the waste receptacle with no coiling and without being submerged below the liquid level of the waste receptacle.

Power Requirements

The autosampler is powered by a supplied external desktop "brick" power supply. Electrical characteristics are described on page 82. Place the autosampler within 1.2 meters of a power outlet.

SHOCK AND FIRE HAZARD Use only the provided power supply. The power supply must be plugged into an outlet which has a protective ground connection.

The autosampler is intended to operate from DC power supplied through the provided power supply. The power supply is provided power through an AC power source that will not apply more than 240VAC between the supply conductors and ground. A protective ground connection by way of the grounding connector in the power cord is required for safe operation.

Ensure that you position the autosampler so that the location where the power supply cord plugs into it is easily accessible (is not blocked) and it can be quickly disconnected if needed. In case of hazard, the autosampler should be disconnected from the power source.

WARNING

WARNING



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The power supply socket for the autosampler head assembly is on the back of the autosampler below the power switch. The power supply socket for the XLR-8 base is on the lower back right hand side of the unit. (See Figure 3-1 on page 20). Connect the power supply to the XLR-8 base first and then connect a line cord to the power supply, then connect a cable between the head assembly and the XLR-8 base. Do not apply power to the power supply until ready to operate the autosampler.

Unpacking the XLR-8

LIFTING HAZARD Two people are required to lift the autosampler. Lifting should be done with a person situated on either side of the instrument.

Inspect external packaging upon receipt for signs of shipping damage. Inspect all items during unpacking and notify the carrier immediately of any concealed damage. Check for kinked tubing in the sample loops or other tubing.

If the system is shipped or removed from storage during cold weather, allow the packaged equipment to equilibrate to room temperature before opening and exposing to warm, humid air. It is usually sufficient to provide four to eight hours for this purpose.

EQUIPMENT DAMAGE FROM CONDENSATION If condensation forms on or inside the autosampler, allow it to dry thoroughly before connecting it to a power source and operating it. Failure to do so may cause equipment damage.

Remove the packing checklist from the shipping container, and check off items against it. Leave accessories in the packing until you are ready to install them.

NOTE

Keep the factory packaging for use in case the product ever needs to be returned or shipped to another location.

WARNING

CAUTION



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3 Installing the XLR-8

The XLR-8 is designed for easy installation.

NOTE

This chapter assumes that you have purchased a complete XLR-8 autosampler.

If you have purchased a kit to upgrade your existing autosampler to an XLR-8, refer to the installation instructions that came with the upgrade kit, then return here.

Overview

To install the autosampler, you must complete the following tasks. Each of these tasks will be discussed in detail later in this chapter.

1 Mount the autosampler head assembly onto the extended rack.

2 Connect the cables and tubing between the autosampler head and the extended rack.

3 Connect the rinse station.

4 Mount the Z-drive assembly.

5 Install the vial racks.

6 Establish external connections to the analytical instrument and host computer.

You can remove thumbscrews with tools if necessary, but do not tighten them with anything other than your fingers.

Ensure the power switch is off and the power cord is unplugged before proceeding with installation. If the power is left on, motors may move unexpectedly and cause injury.

WARNING


Chapter 3: Installing the XLR-8

20

Mounting the Head Assembly onto the Extended Rack

1 Place the extended rack onto a sturdy work surface. You will need access to the back of the instrument.

Figure 3-1. Extended Rack (View from Back)

2 Place the head assembly on the rails of the extended rack (Figure 3-2).

Figure 3-2. Head Assembly in Position

3 Tighten the two thumbscrews using your fingers.

Figure 3-3. Tightening the Thumbscrews



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Connecting the Cables

1 Attach the chain to the base using the three supplied screws.

Figure 3-4. Attaching the Chain

2 Connect the serial cable from the chain to the base of the XLR-8.

Figure 3-5. Connecting the Serial Cable to the Base

3 Check that the power switch is turned off, then connect the two power cables to the base of the XLR-8.

Do not plug in the desktop "brick" transformer until you are ready to use the autosampler. The autosampler could move unexpectedly and cause an injury.

There are two 24 V power connectors:

WARNING



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Figure 3-6. 24 V Power Connectors

For an ASX-520 autosampler head:

Connect the 6-pin cable from the desktop "brick" transformer to right connector on the base of the XLR-8.

Connect the 5-pin cable from the left connector on the base to the ASX-520 autosampler head. This cable passes through the chain.

For an ASX-520 HS autosampler head:

Connect the 5-pin cable from the desktop "brick" transformer to the left connector on the base of the XLR-8.

Connect the 6-pin cable from right connector on the base to the ASX-520 HS autosampler head. This cable passes through the chain.

Figure 3-7. Power Connections for ASX-520

The LED indicates when the XLR-8 is powered on.

4 Connect the two serial cables to the autosampler head.

The cables are located in the bracket at the top of the autosampler head. Connect cable 1 to the COM 1 connector and connect cable 2 to the COM 2 connector.

5 Pins 6 Pins

LED

To Trasformer To Autosampler



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Figure 3-8. Connecting the COM 1 Cable from the PC to the Autosampler Head

Figure 3-9. Connecting the COM 2 Cable from the Chain to the Autosampler Head

5 Connect the power cable to the connector on the autosampler head.

The power cable is located in the bracket at the top of the head assembly.

Figure 3-10. Connecting the Power Supply Adapter Cable

Installing the Rinse Station

1 Snap the rinse station into the bracket on the front of the autosampler head.



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Be sure to route the upper tube over the mounting bracket.

Figure 3-11. Mounting the Rinse Station

2 Secure the tubing in to the bracket.

Figure 3-12. Securing the Tubing

Figure 3-13. Tubing after Installation



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Mounting the Z-Drive Assembly

1 Remove the Z-drive assembly from its packaging.

Figure 3-14. Z-drive Assembly

2 Slide the Z-drive assembly onto the autosampler arm.

Figure 3-15. Sliding Z-Drive on Arm Tube

Sleeve (Protects Z-Drive Cable)

Sample Probe (Varies Depending

on Version) Home flag

Y-Axis Slider

Z-Axis Slider

Sample Tube

Z-Drive Cable

PEEK Nut



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3 Slide the Z-drive assembly onto the Y-axis leadscrew nut (the black block which moves back and forth along the arm). Lift the bushings with your fingernails to get them over the edge of the leadscrew nut.

Figure 3-16. Lifting the Bushings Over the Edge of the Leadscrew Nut

4 Secure the Z-drive assembly to the Y-axis leadscrew nut by tightening the thumbscrews with your fingers. Never use tools to tighten the thumbscrews.

Figure 3-17. Tightening the Thumbscrews



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5 Feed the cable through the rear guide block, then tighten the PEEK nut to secure it.

Figure 3-18. Tightening PEEK nut.

6 Turn the rotor clockwise as far as it will go.

Figure 3-19. View of rotor with rotor pin at stator stop.

Rotor Pin

Stator Stop



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7 Slide the cable onto the rotor on the back of the autosampler. Loosen the thumbscrew on the rotor to allow the cable to pass through the clamp Figure 3-23.

Figure 3-20. Sliding Z-drive cable into rotor groove.

8 Gently move the Z-axis slider until the gap between the slider and cap is approximately 3/32” (~2mm).

With the Z-drive in its highest position, there should be a gap between the Z-axis slider and the top cap of the Z-drive of approximately 2 mm (~ 3/32 inch). If this is not the case, see the Autosampler Operator's Manual for instructions on how to adjust the Z-drive travel.

Figure 3-21. View of Gap Between Probe Bracket and Cap

3/32” (~2mm)



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9 Hold the cable flat against the rotor and secure the cable by tightening thumbscrew on the rotor. Maintain the gap while the rotor pin is making contact with the stator stop (full clockwise rotation of rotor). The thumbscrew should be as tight as possible using just your fingers.

Figure 3-22. Securing cable to rotor.

10 Rotate the rotor back and forth to ensure that it moves freely. Ensure that the full width of the cable is under the clamp.

Figure 3-23. Verifying cable movement and cable clamp

11 Insert the clamp into the slot in the Z-drive. Slide the probe into the Z-drive, through the hole in the clamp, and tighten the clamp with your fingers.

Clamp



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Figure 3-24. Tightening the Clamp Which Holds the Probe to the Z-Drive

If the clamp doesn't tighten enough to hold the probe in place, reverse the orientation of the knurled nut:

Figure 3-25. Clamp Oriented Correctly

12 Loosen the clamp and adjust the position of the probe so that it is about 2 mm (3/32 inch) above the top of the rinse station when the Z-drive is in its highest position.

You can use a large coin, such as a U.S. quarter, to help measure this gap. The exact distance is not critical, but the probe needs to be high enough that it will not hit anything when it moves from place to place.

Threads Visible

Lip Without Threads

Hole for Sample Probe



31

Figure 3-26. Probe Position with Z-Drive in Highest Position

13 Center the probe over the rinse station and rotate the rotor counterclockwise to lower the probe into the rinse station.

14 Use the provided spiral wrap to secure the sample line to the Z-drive cable about 5 cm (2 inches) above the top of the Z-drive. There should be just a little curve to the free sample line when the probe is lowered, and a loop when the probe is raised.

The sample line should naturally curve away from the probe so that it won't rub or get caught. If necessary, loosen the probe and rotate it so that the sample line looks like the pictures below:

Figure 3-27. Securing the Sample Line

15 Use the other spiral wrap to secure the sample line to the cable at its highest point.

2 mm

Slight Curve Away from

Probe

Loop

Spiral Wrap



32

Figure 3-28. Securing the Sample Line

16 The Z-drive assembly and sample probe are now properly installed on the autosampler.

To avoid damaging the drive cable, always raise or lower the Z-drive by moving the rotor, rather than by pushing or pulling on the Z-drive itself.

Assembling and Placing the Sample Rack and Vials The sample vial racks are shipped unassembled. You can easily assemble them without using tools. Once you assemble the sample vial racks, place them in the sample tray before proceeding with the installation.

PUNCTURE HAZARD Never attempt to load, unload or reposition the sample vial rack or sample vial while the autosampler is operating. The sample probe may move unexpectedly and cause an injury.

1 Before loading or unloading any sample vial racks on the sample tray, park the sampling arm and probe in the home position by cycling the power on and off. The home position is the initial position at power up.

2 Snap the racks together as shown in the instructions included with each rack.

You can disassemble the racks if you need to ship or store them.

NOTE:

Keep at least one copy of the assembly instructions provided for each rack. Keep the copy with this manual for reference.

3 Place the first sample vial rack at the extreme left-hand side of the sample tray, so the feet on the rack’s underside engage the locating ribs on the sample tray’s surface.

WARNING



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Correctly placed sample vial racks will not move more than ±2 mm in either a left/right or forward/backward direction unless you lift them.

4 Place the next sample vial rack to the right of the previous rack so the feet on the rack’s underside engage the locating ribs on the sample tray’s surface.

Ensure the rack is not tilted and is properly placed.

5 Repeat until you place all the sample vial racks.

When viewed from the front of the autosampler, the sample vial racks should now be arranged on the sample tray as follows: Rack #1 at the extreme left position and Rack #8 at the extreme right position.



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Connecting the Autosampler to the Power Supply The autosampler is powered by the supplied external desktop "brick" power supply. Ensure that you position the autosampler so that the location where the power supply cord plugs into it is easily accessible (is not blocked) and it can be quickly disconnected if needed. In case of hazard, the system should be disconnected from the power source.

1 Turn the power switch on XLR-8 base OFF.

2 Turn the power switch the autosampler head assembly OFF.

3 Check the plug on the power cord to verify that it is of the correct type for your country.

4 Plug the power cord into a power outlet.

5 Plug the power cord into the power supply.

Figure 3-29. Desktop "Brick" Power Supply

6 Plug the power supply into the 24V connector on the extended rack.

7 If you have not done so already, connect the power supply adapter cable between the autosampler head and the extended rack.

8 Turn the power switch on the XLR-8 base ON.

9 Turn the power switch on the autosampler ON.

Power Cord to Grounded AC Power Outlet

To POWER Connector on Autosampler

Extended Rack



35

It is important to use the appropriate power cord for your country. See

“Power requirements” on page 82.

“Power Cord Set Requirements” on page 84.

FIRE AND SHOCK HAZARD Use only the provided desktop power supply. The power supply must be plugged into an outlet which has a protective ground connection.

Connecting the Autosampler to an Analytical Instrument You can connect the autosampler directly to a sample introduction peristaltic pump and then to the ICP-MS or to a sample introduction device, such as the CETAC ASXPRESS® PLUS rapid sample introduction system or the CETAC U-6000AT+ ultrasonic nebulizer. To do so, complete the following steps:

1 Determine the free length of the sample probe tubing you need, add 10 centimeters, and cut the free end of the sample probe to length.

Determining the free length includes allowance for movement of the Y-arm in the X, Y, and Z axes. The additional 10 centimeters provides a service loop for unrestricted sample probe motion. Keep the sample transfer tubing as short as possible to reduce carryover and to improve the sampling rate.

If you cut the tubing too short, replace the probe; do not splice the tubing.

2 Connect the free end of the sample transfer tubing to the inlet of the analytical instrument’s peristaltic pump tubing.

Connecting the Autosampler to the Host Computer The software on the host computer controls both the analytical instrument and the autosampler. You cannot operate the autosampler until you establish communication between the autosampler and the host computer.

Communication Protocols

The autosampler supports the following communications protocols:

The serial (RS-232) protocol is the standard configuration. There are two RS-232 serial ports on the autosampler, and a serial interface kit is shipped with the autosampler.

The parallel (IEEE-488) protocol is less common than the serial configuration. An IEEE-488 interface kit is available as an optional accessory to the XLR-8.

The USB interface is an optional configuration. A virtual COM port is created when using the USB and therefore, the connection looks like a standard RS-232 serial port to the host PC software.

WARNING



36

NOTE:

Although the autosampler supports several communications protocols, the host computer governs which protocol is used. To determine which protocol is required for the analytical instrument you are using, refer to the hardware or software manual provided with the instrument.

Establishing an RS-232 Serial Communications Interface The serial interface kit provided with the XLR-8 Autosampler includes an interface cable equipped with two modular port adapters. Use the interface kit to establish a serial communications interface with the host computer. To do so, complete the following steps:

1 Plug one end of the cable into the host computer’s serial (COM) port selected for autosampler communications.

Make sure that the COM port you select matches the port selected in the host computer’s software.

2 Finger tighten both screws of the cable adapter.

NOTES

If a host computer serial port with a DB9F, a DB25M, or a DB25F connector (9 pin D-submini receptacle or 25 pin D-submini plug or receptacle) must be used, use the mating connector from the CETAC Technologies universal port adapter kit. You can order the adapter kit from CETAC Technologies or purchase an adapter locally to convert the serial port to a DB9M. Do not use a “null modem” adapter.

Ensure you are connecting the serial cable to the COM1 port. Connecting the adapter to the COM2 port on the autosampler will cause a malfunction.

When interconnecting any computing devices, keep the communications cables away from sources of electromagnetic or radio frequency (RF) interference, such as electric motors, transformers, fluorescent light ballasts, or RF energy sources. Limit cable runs for RS-232C to less than 16 meters. If these conditions cannot be satisfied, use low-impedance, fully shielded cables to provide satisfactory operation. The cables are available from many sources, but you will need to specify the correct mating connectors and “straight-through” (DTE-DCE) wiring.

3 Connect the other end of the cable to the COM1 port on the autosampler head.



37

Figure 3-30. Connecting the Host Computer to the Autosampler Head

Ensure that you are connecting the adapter to the COM1 port. Connecting the adapter to the AUX I/O port on the autosampler will cause a malfunction. The autosampler AUX I/O port is used for communications to a device other than the host computer.


Establishing a USB Communications Interface If the host computer does not have an available RS-232 port, you can use a USB port instead. An “A-B” USB cable may be obtained from any computer store. The procedure for finding and installing the USB driver may be different, depending on your computer's operating system.

1 Power up both the computer and the autosampler.

2 Plug one end of the cable into the host computer's USB port and the other end to the autosampler’s USB port.

The computer screen should display a "New Hardware Found" window. A USB driver must be installed to make the USB port emulate an RS-232 COM port, and the installation must be repeated for each USB connection.

The exact procedure for installing the driver depends on the version of the host computer’s operating system. The instructions which follow show installation on the Windows XP operating system.

3 Allow the Windows Found New Hardware Wizard to use Windows Update to search for a driver.

In most cases, the driver will be found online and installed automatically. This process may take several minutes.

4 If a driver is not found, click Back to begin installation from the CD-ROM.

CAUTION

COM 2 Cable Goes Through the Chain to the XLR-8 Base

COM 1 Cable Goes to the Host PC



38

Figure 3-31. Message Showing that a Driver Was Not Found. Insert the CD-ROM.

a. Select Install from a specific location and click Next.

Figure 3-32. Choosing to Install USB Driver from a CD

b. Select Search removable media.



39

Figure 3-33. Choosing to Install USB Driver from a CD

c. Wait while the computer searches the CD.

Figure 3-34. Searching the CD

d. When the driver is found, select it and click Next.



40

Figure 3-35. Selecting the Driver

e. The driver installation is complete.

Figure 3-36. Driver installation is Complete

If a message is displayed showing which COM port number was chosen (look for a “bubble” in the lower-right corner of the screen), make a note of it.



41

5 Confirm that the COM port selected for the USB matches the port selected in the host computer's ICP software.

Establishing an IEEE Communications Interface Before you can establish an IEEE communications interface with the host computer, you must have the IEEE-488 interface kit, which includes a converter box and an IEEE-488 cable. Use the IEEE-488 kit to establish a parallel interface with the host computer. To do so, complete the following steps:

1 Connect the converter box according to the manufacturer’s instructions.

Manufacturer’s instructions are provided with the kit.

2 Plug one end of the cable into the serial port on the 232/488 converter box.


4 Connect the other end of the cable to the COM1 port on the autosampler head.

Ensure that you are connecting the adapter to the COM1 port. Connecting the adapter to the AUX I/O port on the autosampler will cause a malfunction. The autosampler AUX I/O port is used for communications to a device other than the host computer.


Loading XLR-8 Tray Files Before the ICP-MS can work with the XLR-8, the tray files may need to be loaded in the proper ICP-MS software program location. The tray files are provided on the CETAC Installation CD along with ICP-MS specific instructions for loading the files.

Using the XLR-8 with the CETAC ASXPRESS® PLUS Rapid Sample Introduction System The XLR-8 autosampler is compatible with the CETAC ASXPRESS® PLUS Rapid Sample Introduction System. See information supplied with the ASXPRESS® PLUS

system for instructions on how to install the special rinse station and rinse tubing arrangement.

CAUTION



42

This page is intentionally blank

43

4 Verifying Installation

Once installation of the autosampler is complete, it is important to verify that you have installed it correctly. Attempting to use it before ensuring that it is installed correctly may result in damage to the autosampler.

Verifying installation of the autosampler consists of two parts:

Ensuring that the communications interface between it and the host computer is working.

Ensuring that the sample probe functions properly.

This chapter explains how to test the above items before using the autosampler.

NOTE:

The procedures given in this chapter are for use in a Windows XP environment.

Testing the Communications Interface If the communications interface between the autosampler and the host computer is not established correctly, the autosampler will not function.

1 Check that the communication cables are properly attached between the host computer and the autosampler.

2 Turn on power to the autosampler.

3 Connect to the autosampler using a terminal emulator program such as C-Term.

See “Operating the XLR-8 Using a Terminal Program” on page 73.

4 Enter the HOME command.

The autosampler should reset, with the Y-arm moving back into the home position. If the autosampler does not reset, see “Troubleshooting the XLR-8Troubleshooting the ” on page 65.

5 Enter the RINSE command.


Chapter 4: Verifying Installation

44

The Y-arm should dip first into the center of the pre-rinse location and then into the center of the full rinse location.

Checking the Autosampler Components The following autosampler components may be damaged during shipping or installation: the sample probe, the peristaltic pump tubing, and the rinse station and tubing. It is important that you check these components for damage before you operate the autosampler. To do so, complete the following steps:

1 Shut down and unplug the autosampler.

2 Visually inspect the sample probe, peristaltic pump tubing, and rinse station and tubing for leaks or signs of damage.

Testing the Sample Probe The sample probe must descend into the center of each sample vial to ensure satisfactory sample uptake. Shipping or rough handling can disturb the autosampler’s cabinet-to-base alignment. If it is incorrectly aligned, the sample probe will not function properly. It is therefore important to test the sample probe before you actually run samples with the autosampler.

NOTE:

Before testing the sample probe, ensure that you have installed all autosampler components correctly. Also, ensure that you have securely tightened all thumbscrews and connected the communications cable from the host computer to the autosampler.

Testing the sample probe involves observing the operation of the sample probe. To do so, complete the following steps:

1 Load the autosampler sample tray with an empty sample rack.

If multiple kinds of sample vial racks (different numbers of positions) will be used, select the sample rack containing the maximum number of positions for the initial verification run.

2 Turn the XLR-8 power switch on and verify that the LED power indicator is on.

See page 9 for the location of the power switch and power indicator LED.

3 Turn the autosampler head power switch on and verify that the LED power indicator is on.

The LED will flash upon power up and will then remain lit when the unit is ready to operate.

4 Using the ICP software, designate the sample positions at the left rear, left front, right rear, and right front of the sample tray.



45

5 Place sample vial racks and sample vials at the four corners.

6 Command the autosampler to move the sample probe to the designated sample positions. Check that the sample probe correctly accesses each position and that the probe descends into the center of each sample vial.

NOTE:

If the autosampler alignment is not correct, contact CETAC Technologies Customer Service and Support or an authorized representative.



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47

5 Using the XLR-8

Before using the autosampler, ensure that your lab environment provides operating conditions that will prolong the life of the XLR-8. Once the proper operating conditions are met, you can arrange the sample vial racks and start the autosampler sequence run. When you finish using the autosampler, you may need to flush the rinse station and flow path before shutting down.

Establishing Optimal Operating Conditions The autosampler operates reliably even under less than ideal conditions. It is not, however, indestructible. Malfunction or damage can occur if specific operating conditions are not met. Meeting these conditions requires that you create the proper lab environment, replace autosampler components that wear out under normal use, and purchase the appropriate supplies for use with the autosampler. The following sections explain how to meet these conditions.

NOTE

Damage or malfunction that results from unsatisfactory operating conditions may constitute misuse and abuse and be excluded from warranty coverage.

Creating the Lab Environment

To create satisfactory operating conditions in your lab environment, follow these guidelines:

Operate the autosampler in a conventional lab environment where the temperature is 55–85 °F (13–30 °C), the humidity is 0–60% non-condensing, and the unit is not exposed to excessive flammable or corrosive materials. (This is the recommended operating environment. For the maximum limits, see "Environmental Characteristics" on page 81.)

Avoid rough handling of the autosampler. If possible, do not expose the autosampler to vibration or shock.

Protect the autosampler from long-term exposure to condensation, corrosive materials, solvent vapor, continual standing liquids, or large spills into the autosampler cabinet or arm. Exposures of this type can damage the drive mechanisms as well as the electronics.


Chapter 5: Using the XLR-8

48

Observe the same general electrostatic discharge precautions as with any other integrated circuit electronic devices. Low humidity environments, especially when combined with static-generating materials, require maximum care.

Discharge static buildup and ground to the autosampler base or cabinet before performing any maintenance. Do not touch or short-circuit bare contacts, COM1, COM2, or auxiliary ports.

Avoid using the autosampler if strong electromagnetic interference, radio frequency interference, or radioactivity is present. Interference fields can cause erratic operation of the autosampler. The autosampler will not function properly if the level of radioactivity is above background.

Replacing Auto Sampler Components

The following components wear out under normal use and must be replaced periodically:

Peristaltic pump tubing

Rinse tubing

Sample probe

If you fail to replace these components when they deteriorate, the autosampler will not function properly. For information about replacing autosampler components, see Chapter 6, “Maintaining the XLR-8.”

Purchasing Supplies

Because the life-span of the sample and standards vials varies, you should maintain an adequate supply of spare vials. When you need to purchase additional supplies, it is extremely important that you choose the appropriate sizes and materials.

When you purchase sample and/or standards vials, make sure they meet the following requirements:

The diameter of the sample or standards vial matches the rack size you are using.

The shape of the sample or standards vial matches the rack you are using. Most racks are designed for use with conical-bottom centrifuge vials. Anything other than tapered-bottom vials will not remain properly positioned in the rear standards rack.

The height of the vials does not exceed 125 mm.

The material selected is compatible with the samples, standards and your analytical requirements. Ultra-high purity, ultra-trace applications are facilitated with Polytetrafluoroethylene (PTFE), Fluorinated Ethylene Propylene (FEP), Perfluoralkoxy (PFA) or similar materials.

CAUTION



49

Use of mismatched sample vials and sample vial racks may result in malfunctions or sample spills. Be sure your vials meet the given requirements.

To order additional supplies, refer to the CETAC Accessories and Supplies Catalog for the autosampler, available on the CD or on the CETAC Web site.

Arranging the Sample Vial Racks You can change the arrangement of the sample vial racks to meet your needs. The XLR-8 autosampler accommodates one sample rack.

For more information about placing sample vial racks in the sample tray, see "Assembling and Placing the Sample Rack and Vials" on page 32.

Define the number of sample positions for a sample rack through the host instrument software.

Incorrectly defining the position count in the ICP software can result in sample spills and invalid analysis results.

Starting the XLR-8 Once you arrange the sample vials and ensure that the arrangement is correctly defined in the software, you can start the autosampler and let it run until the sampling sequence is finished.

PINCH HAZARD Keep fingers, hair, and loose clothing away from the moving parts of the autosampler.

CHEMICAL BURN HAZARD Make sure that all tubing is securely connected and that all protective covers are in place before operating the autosampler. Use proper laboratory practices and appropriate personal protective equipment.

1 Ensure that the rinse station is properly connected.

2 Turn the autosampler power switch on.

The LED power indicator on the autosampler lights up when the power is on.

3 Adjust the peristaltic pump shoe until the desired rinse solution flow rate is achieved.

4 Purge air from the rinse system by running the rinse solutions through the rinse station.

Ensure there are no air bubbles visible in the rinse uptake tubing before you run samples with the autosampler.

CAUTION

CAUTION

WARNING

WARNING



50

NOTE

If you are flushing the rinse system during initial startup, first use a 2% nitric acid solution as the rinse agent. Flush the rinse system a second time using deionized water as the rinse agent.

5 Access the host computer’s software and activate the autosampler program.

Define and start the sampling sequence. The autosampler runs until it reaches the end of the sampling sequence.

Shutting Down the XLR-8 To shut down the XLR-8, complete the following steps:

1 Drain the rinse system by removing the rinse solution uptake tubing from the rinse solution source. Let the peristaltic pump run until all solution drains from the tube attached to the rinse station outlet.

If you use a rinse solution other than deionized water, flush the rinse system with deionized water before shutting down the autosampler. For more information, see “Flushing the Rinse Station and Flow Path” on page 50.

2 Turn off the autosampler power switch.

3 If you will be performing maintenance, unplug the power cord either at the power supply or at the wall outlet.

4 After the rinse station has been pumped empty and the power turned off, place the uptake tubing into a clean waste container.

5 Release the peristaltic pump pressure shoes from contact with the pump tubing by disengaging their latches, allowing any remaining rinse solution that may be trapped in the rinse system to drain to the waste container. Releasing the pressure shoe decreases wear on the pump tubing. (Remember to re-engage the pressure shoe latches and return the rinse solution uptake and drain tubing to the proper vessel(s) before restarting and operating the autosampler.).

Flushing the Rinse Station and Flow Path Generally, you can operate the autosampler without flushing the rinse system. Under normal circumstances, you can simply drain the rinse system prior to shutting down the autosampler. However, you need to flush the rinse station and flow path under two circumstances:

During initial startup of the autosampler after installation.

After the use of strong bases, acids, or organic solvents as rinse agents.



51

Flushing the rinse system during initial startup of the autosampler removes any contaminants that could cause interference during sample analysis. Flushing the rinse system after using strong rinse agents prevents degradation and failure of the flow path components.

To flush the rinse station and flow path, complete the following steps:

1 Insert the rinse uptake tubing into a deionized water source.

NOTE

If you are flushing the rinse system during initial startup, first use a 2% nitric acid solution as the rinse agent, followed by deionized water.

2 Run the rinse solution through the rinse station and flow path for 5 to 10 minutes.

Once you flush the rinse system, you can proceed with the sampling sequence or drain the rinse system as part of the shutdown procedure.



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53

6 Maintaining the XLR-8

Routine maintenance of the autosampler consists of daily and weekly cleaning of specific autosampler components. Routine maintenance also includes checking for leaks or other damage. Additional periodic maintenance tasks may be required, including replacement of the following autosampler components: peristaltic pump tubing, rinse tubing, sample tray, and sample probe.

Discharge static buildup and ground to the autosampler base or cabinet before performing any maintenance. Do not touch or short-circuit bare contacts, COM1, COM2, or auxiliary ports.

Cleaning the XLR-8 Cleaning the autosampler is the primary maintenance task you perform. Failure to do so regularly causes increased wear and reduces the autosampler’s life.

You must clean the autosampler both daily and weekly to prevent damage and extend its life. It is especially important to clean up spills and remove contaminants, such as abrasives, from the autosampler’s moving parts. It may also be necessary to chemically neutralize spills. The following sections explain daily and weekly cleaning procedures.

Daily External Cleaning

Use of the autosampler often results in spills on autosampler components such as the sample tray. Good maintenance requires that you clean the autosampler daily. To do so, complete the following steps:


For information about shutting down the autosampler, see page 50.

CAUTION


Chapter 6: Maintaining the XLR-8

54

2 Wipe the sample tray, autosampler cabinet, autosampler arm, and rails using a clean-room wiper dampened with a lab-grade cleaning agent.

Do not allow the cleaning agent to come into contact with the lead screws. Also, never lubricate either of the two lead screws.

3 Wipe again with a new clean-room wiper dampened with clear water.

This process removes any remaining contaminants.

4 Dry the sample tray, autosampler cabinet, autosampler arm, and rails using a new clean-room wiper.

The autosampler must be thoroughly dry before you turn the power on.

Weekly/Thorough Cleaning

Although cleaning daily removes spills and contaminants from most of the autosampler components, it is necessary to clean the autosampler more thoroughly once a week. It may also be necessary to perform a more thorough cleaning if a large spill occurs. To do so, complete the following steps:


2 Remove the sample and standards vials and the sample racks.

3 Remove the sample tray.

For information about removing the sample tray, see “Replacing the Sample Tray” later in this chapter.

4 Remove the rinse station.

5 Wipe loose particles from the top of the autosampler cabinet and exposed parts of the mechanism with a dry, lint-free cloth.

6 Wipe loose particles from the Y-axis lead screw with a dry, lint-free cloth.

The Y-Axis lead screw is the large metal screw located inside the autosampler arm tubing.

Never lubricate the lead screws. The lead screw nuts are compounded with a dry film lubricant. Oiling the lead screws will cause gumming, galling, and binding of the sample probe assembly.

7 Wipe the autosampler exterior and base until they are clean, using a towel dampened with a lab-grade cleaning agent, followed by a towel dampened with clear water.

A recommended lab-grade cleaning agent is deionized water or a 70% isopropyl alcohol/30% deionized water solution.

Pay special attention to the Y-axis slider block, the guide rails along the tube of the autosampler arm, and the rails on the base of the XLR-8.

CAUTION

CAUTION



55

8 Wash the sample tray in a warm detergent solution.

Make sure you remove all spills and stains.

9 Rinse the sample tray with water and then dry it.

Ensure that the sample tray is thoroughly dry.

10 Dry all components before proceeding.

11 Replace the sample tray on the autosampler base.

12 Replace the rinse station.

Checking for Leaks Several of the autosampler components have a limited life and will wear out under normal use. Standard maintenance procedures require that you periodically check these components for leaks.


2 Visually inspect the sample probe, peristaltic pump tubing, and rinse station and tubing for leaks or signs of deterioration.

Carefully inspect the tip of the probe looking for cracks, chipping, or other signs of deterioration. Inspect all tubing for signs of wear and obvious damage. Inspect all fluid fittings for signs of wear or damage.

If you detect a leak or other damage to an autosampler component, you must replace it. For more information, see the appropriate section in this chapter.

Installing and Adjusting the Sample Probe You must replace the sample probe if it is leaking or shows other signs of deterioration. If you use the autosampler for a new application, you may also need to change the sample probe to one of a different diameter or material.

These instructions assume a standard carbon fiber sample probe, which uses a Z-drive assembly with two thumbscrew probe clamps. The optional Ultem sample probe uses a Z-drive assembly with just one clamp.

Removing the Sample Probe

1 Loosen the thumbscrews and pull the probe straight up.

Installing the Sample Probe


2 Rotate the rotor on the back of the autosampler to move the Z-axis slider to the top of the Z-drive.



56

3 Loosen the clamps on the Z-drive. To loosen, turn the thumbscrew counterclockwise.

4 Guide the probe straight down.

5 Adjust the position of the probe so that when the Z-drive is at its highest position, the probe is above the top of the tallest sample vial and is above the top of the rinse station.

If there is a guide plate on the bottom of the Z-drive assembly, the tip of the probe should extend 3 to 6 mm below the guide plate when the Z-drive is in the highest position.

You can manually move the autosampler arm horizontally (in the X and Y axes) without damage to the autosampler. Use the rotor on the back of the autosampler to move the Z-axis slider up and down; pushing on the Z-axis slider may damage the drive cable.

6 Tighten the thumbscrews using your fingers.

7 If needed, secure the sample transfer tubing to the drive cable using the included spiral-wrap at tie points approximately 15 and 40 centimeters above the top of the Z-drive, leaving an untangled service loop of approximately 13 to 15 centimeters above the probe.

The sample transfer tubing should still have slack remaining when the probe is at the maximum downward limit

Setting the Z-Axis Travel To set the Z-axis travel of the Z-drive assembly, complete the following steps:

1 Adjust the Z-axis slider (with attached sample probe) so that the slider is approximately 3 millimeters below the top of Z-axis drive.

2 Rotate the Z-axis rotor clockwise so the rotor stop pin is against the rotor stop.

3 Finger-tighten the rotor clamp.

Ensure that the Z-drive cable is fully located in the rotor clamp groove. Otherwise the cable will slip, resulting in no movement of the Z-axis slider.

4 Manually rotate the Z-axis rotor back and forth several times and check for full unhindered movement of the Z-axis slider.

5 With the Z-axis in the full-up position, hold the Z-axis slider and move the sample probe tube up and down so that 3 to 6 millimeters extends below the sample probe guide plate.



57

Figure 6-1. Z-Drive Assembly with Z-Axis Slider

Do not move the sample probe directly as damage may result.

To make fine adjustments to the sample probe X/Y targeting, loosen the nylon screw on the probe guide plate 1/8 to 1/4 turn and move the guide plate up to 0.2 millimeters from the original location. Be sure to tighten the nylon screw before operating the ASX-520.

Installing and Adjusting the Z-Drive Cable If the Z-drive or cable becomes damaged, order a replacement Z-drive assembly from CETAC Technologies. Instructions are provided with the Z-drive assembly.

Note that the Z-drive which comes with a new XLR-8 is pre-aligned so that the probe is centered over the rinse station and sample vials. The replacement Z-drive will need to be aligned by trimming the black plastic home-position flag.

CAUTION

Z-Drive Cable

Sample Transfer Tubing

Z-Drive Assembly

Thumbscrews with Bushings

Y-Axis Slider Block

Y-Axis Carriage (Leadscrew Nut)

Guide Rail on Y-Arm

Z-Axis Slider Block (Shown here: Ultem

version with one clamp )

Sample Probe Guide Plate (Optional, for Ultem probes)

Y-Axis Home Position Flag



58

Replacing the Rinse Station Tubing If the rinse station tubing is typically exposed to deionized water as a rinsing agent, you do not need to replace it often. However, if you use other rinsing agents, such as acids or solvents, the tubing is likely to deteriorate more rapidly.

In most cases, rinse solution will be "recycled" by returning it to the rinse solution bottle. If necessary, rinse solution can be pulled from a fresh bottle and used solution returned to a waste container.

Note that rinse solution flows up through the rinse station.

Figure 6-2. Autosampler Rinse Station

Replacement tubing kits are available from CETAC. To replace the rinse station tubing, complete the following steps:


2 Move the autosampler arm 20 to 30 centimeters away from the home position by gently pushing it.

Moving the autosampler arm ensures that the sample probe will not be damaged while you replace the rinse station tubing.

3 Disconnect the rinse solution uptake and drain tubing.

Apply only a linear force when removing the tubing to prevent the fittings from breaking.

4 Remove the rinse station:

a. Rotate the rinse station tube counterclockwise ¼ turn.

b. Remove the rinse station tube from the mounting block by lifting the tube straight up.

5 Locate in the tubing kit the 6 mm (¼”) OD Tygon® tubing. The tubing will need to be cut to the appropriate lengths.

6 Connect a length of tubing from the output of the pump to the rinse station intake port.

Rinse Drain Port

Rinse Intake Port



59

Apply only a linear force when replacing the tubing to prevent the fittings from breaking.

Figure 6-3 Pump Output to Rinse Intake Port.

7 Cut a 30 cm length of tubing. This will run between the drain port of the rinse station and one of the inputs of the peristaltic pump.

8 Connect one end to the input of the unused pump channel.

Figure 6-4 Pump Input Connection from Rinse Drain.

9 Connect the other end to the drain of the rinse station.

Remove the rinse station and press the tubing very firmly so that it completely covers the barb of the fitting. It helps to use your other hand to apply counter-pressure.



60

Figure 6-5 Rinse Station Drain Connection.

10 Replace the rinse station by pushing the new rinse station tube into the mounting block and rotating it clockwise ¼ turn.

Figure 6-6 Replacing the Rinse Station.



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11 Remember to secure the tubing to the bracket, as shown on page 24.

12 Move the autosampler arm back to the home position.

Replacing Peristaltic Pump Tubing Routine maintenance of the autosampler includes replacement of the peristaltic pump tubing. Because of the operating nature of peristaltic pumps, the tubing will probably be the most frequently replaced item on the autosampler. If you use strong bases, acids, or solvents as rinsing agents, the tubing may break down rapidly.

To replace the peristaltic pump tubing, complete the following steps:

PINCH HAZARD Turn off power before servicing the pump or pump tubing.


2 Release the pressure shoe and remove the old tubing.

Carefully pull or cut the old tubing to remove it.

3 Replace the pump tubing by pushing the new tubing onto the fittings.

Replace the new tubing carefully. Damage can result if you apply too much force.

4 Reconnect the pressure shoe.

Replacing the Sample Probe You must replace the sample probe if it is leaking or shows other signs of deterioration. To do this, complete the following steps:


2 Remove the old sample probe and tubing.

Release the probe from the Y-arm by loosening the thumbscrew. Gently pull the probe up and out.

3 Install the new sample probe.

For more information about installing the sample probe, see page 25.

Adjusting the Movement Speed The X/Y/Z movement speed of the autosampler arm (but not the speed of the head moving along the base) may be adjustable. The speed does not need to be adjusted in most circumstances. Contact CETAC if you need advice about

WARNING



62

whether slowing down or speeding up the movement is appropriate for your laboratory. If you do need to adjust the speed, see the CETAC ASX-520 Family SpeedShift Utility Software User's Guide on the CD.



63

Replacing the Sample Tray Cleaning the sample tray each week extends its life and makes frequent replacement unnecessary. However, if the sample tray needs to be replaced, complete the following steps:


2 Remove all sample vial racks.

3 Move the Y-arm 20 to 30 centimeters away from the home position by gently pushing it.

Moving the arm ensures that the sample probe assembly will not be damaged while you replace the sample tray.

4 Raise the rinse station tube approximately 2 centimeters.

5 Raise the front edge of the damaged tray at least 2.5 centimeters and slide it forward.

Figure 6-7. Lifting the Sample Tray

If you have difficulty removing the sample tray, raise the front edge higher before sliding it forward.

6 Install the new tray.

7 Lower the rinse station tube.

Ensure the rinse station tube is positioned securely.

8 Move the arm back to the home position.

9 Replace the sample vial racks.



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Chapter 7: Troubleshooting the XLR-8

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7 Troubleshooting the XLR-8

When the autosampler does not function properly, isolate the problem to determine if it originates in the host computer, the analytical instrument, the RS-232 cable, USB cable or the autosampler. If you determine the problem is in the XLR-8, check the power system, the communications interface, or the sample probe assembly to find the cause of the problem and resolve it.

This chapter explains how to troubleshoot autosampler problems. If you cannot solve a problem using the steps given in this chapter, you should contact CETAC Technologies Customer Service and Support.

Power System Problems A possible cause of system malfunction is a problem in the power system. If the system is not functional, it is possible that it is not receiving power. If this is the case, the LED status indicator light will be off. To troubleshoot this problem, complete the following steps in sequence until the problem is solved:

1 Check that both power switches—the one on the XLR-8 base and the one on the autosampler—are turned on.

2 Check that the power cords are plugged in firmly between the power input on the autosampler and the external power supply and also between the power supply and the wall outlet.

Check that the power cables are not damaged in any way.

If the XLR-8 base is receiving power, the LED near the power connectors on the base should be illuminated.

3 Check that the power cable between the XLR-8 base and the autosampler head is connected.

4 Check that the LED on the power supply is illuminated.

If the LED is not illuminated, check the wall outlet using a device approved for that purpose.

If the wall outlet is working and the voltage is acceptable, unplug the external power supply from the autosampler, but leave it plugged into the wall.

If the LED is not lit, the power supply is faulty and requires replacement.



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If the LED is lit when unplugged from the autosampler but turns off when plugged into the autosampler, the autosampler may have an internal short and requires repair.

5 Check the wall outlet.

Some laboratory equipment may trip a GFI (ground fault interrupt) outlet in its normal operation.

6 If the external power supply LED is illuminated while plugged into the autosampler, cycle the autosampler power switch. The autosampler sample probe should move up and the autosampler should initialize. After initialization, the status LED on the front of the autosampler should light up.

If the cords are properly connected, power is available, the external power supply is good, and the unit still does not initiate, continue troubleshooting.

Communications Interface Problems Operation of the autosampler is directed by the host computer. A malfunction can indicate a problem with the RS-232 or USB cable (connected between the host computer and the autosampler) or with the configuration of the software on the host computer. The following sections explain how to troubleshoot these problems.

RS-232 Serial Cable Problems

The first step in troubleshooting communications interface problems is to check the RS-232 cable.

1 Check the RS-232 cable to ensure it is plugged in to the COM1 port on the autosampler.

If the cable is plugged in, ensure that it is tightened properly and not damaged in any way.

Note that the cable must be plugged into the COM1 port, not the COM2 port.

2 Check the host computer to ensure that the RS-232 cable is connected to the appropriate COM port.

If the cable is plugged in, ensure that it is tightened properly and not damaged in any way.

3 Check the serial port settings (9600, N, 8, 1).

If the wrong port or baud rate is selected, change the configuration. For information about changing the software configuration, see Chapter 4, “Verifying Installation.”

USB Cable Problems

Either RS-232 or USB may be used, but not both at once.



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1 Check that the USB cable to ensure it is plugged into the port on the autosampler.

2 Check the host computer to ensure that the USB cable is connected to the appropriate USB port.

3 Check that the USB cable is not damaged in any way.

4 Check the host computer to ensure that the USB drivers are installed for USB operation of the autosampler.

Load the proper USB drivers to the host computer from the CD that was provided with the autosampler.

Software Configuration Problems

If the communication cable is are connected properly and the system is still not functioning with the ICP software, ensure that the software is communicating correctly with the autosampler. To do so, verify proper operation of all manual functions by completing the following steps:

1 Connect to the autosampler using a terminal emulation program (see "Operating the XLR-8 Using a Terminal Program" on page 73).

2 Enter some commands, such as HOME.

If the commands have no effect, and a USB connection is being used, check that the autosampler is plugged into the same USB port as it was when the driver software was configured. Unlike many consumer devices, each USB port used as a “virtual” COM port must be individually configured.

3 If manual commands work, but the autosampler does not operate with the ICP software, carefully check that the ICP software is configured to use the COM port where the autosampler is plugged in.

If a USB connection is used, and if the manual commands work, but the ICP software fails to operate the autosampler, check that the same COM port number is configured in the ICP software and in the USB device driver.

Alignment Problems An XLR-8 Autosampler alignment malfunction may be caused by bumping the Y-arm out of alignment during a sampling sequence. If the autosampler begins missing target vials or the rinse station during a sampling sequence, complete the following:

1 Cycle the power, and restart the sequence.

The autosampler realigns to home with a power cycle.

If the alignment is not returned following a power cycle, check the host instrument software to ensure that the correct XLR-8 tray configuration is being used.



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If the correct tray configuration is being used and alignment problems persist, call CETAC Technologies Customer Service for alignment assistance.

Z-Drive Assembly Problems An autosampler malfunction may be caused by a problem in the z-drive assembly. You can easily determine that a malfunction is related to the Z-drive assembly if you hear a loud chattering noise when the autosampler power switch is on or if the sample probe is not moving. To troubleshoot Z-drive assembly problems, complete the following steps:

1 Ensure that the Y-axis slider block and Z-drive assembly are installed.

2 Check the Y-axis block home position flag for damage.

The home position flag is shown in Figure 3-14 on page 25. If the flag is damaged, replace it.

3 Check that the sample probe is moving.

If the sample probe is binding, free the sample probe assembly. Make sure that all of the moving surfaces are clean and inspect the Z-drive cable for kinks and wear.

If you cannot free the Z-drive assembly, you may need to replace it.



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Returning the Product to CETAC for Service Refer to the following information if you need to return the product to CETAC Technologies for service.

Shipping the Product

Follow these guidelines when shipping the product:

Use the original packing materials. If the original shipping materials are not available, place a generous amount of shock-absorbing material around the instrument and place it in a box that does not allow movement during shipping. Seal the box securely.

Contact CETAC Technologies before shipping the product.

Pre-pay all shipping expenses including adequate insurance.

Write the following information on a tag and attach it to the product:

Name and address of the owner Product model number and serial number Description of service required or failure indications

Mark the shipping container as FRAGILE.

In all correspondence, refer to the instrument by model name or number and full serial number.

Do not return products which are contaminated by radioactive materials, infectious agents, or other materials constituting health hazards to CETAC employees.

Product Warranty Statement

NOTE

Contact CETAC Technologies or refer to the warranty card which came with your product for the exact terms of your warranty. The following copy is provided for your convenience, but warranty terms may be different for your purchase or may have changed after this manual was published.

CETAC TECHNOLOGIES warrants automation instruments for (2) two years from the date of shipment. Any CETAC manufactured unit sold directly to the End-User found in reasonable judgment of CETAC to be defective in material or workmanship will be repaired by CETAC without charge for parts and labor. Only CETAC manufactured automation instruments are covered by the (2) two year warranty. For a complete listing of our Automation products please visit our web site at www.cetac.com and follow the Automation link.

The unit, including any defective part, must be returned to CETAC within the warranty period. The expense of returning the unit to CETAC for warranty service will be paid for by the buyer. CETAC’s responsibility in respect to warranty claims is limited to making the required repairs or replacements, and no claim of breach of warranty shall be cause for cancellation or recession of the contract of sale of any unit.



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Products may not be returned which are contaminated by radioactive materials, infectious agents or other materials constituting health hazards to CETAC employees.

This warranty does not cover any unit that has been subject to misuse, neglect, negligence or accident. The warranty does not apply to any damage to the unit that is the result of improper installation or maintenance, or to any unit that has been operated or maintained in any way contrary to the operating or maintenance instructions as specified in the CETAC Instruction and Operations Manual. The warranty does not cover any unit that has been altered or modified so as to change its intended use. Any attempt to repair or alter any CETAC unit by anyone other than by CETAC authorized personnel or agents will void this warranty.

In addition, the warranty does not extend to the repairs made necessary by the use of parts, accessories, or fluids which are either incompatible with the unit or adversely affect its operation, performance or durability.

CETAC reserves the right to change or improve the design of any unit without assuming any obligation to modify any unit previously manufactured.

THE FOREGOING EXPRESS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

CETAC’S OBLIGATION UNDER THIS WARRANTY IS STRICTLY AND EXCLUSIVELY LIMITED TO THE REPAIR OR REPLACEMENT OF DE-FECTIVE PARTS, AND CETAC DOES NOT ASSUME OR AUTHORIZE ANYONE TO ASSUME FOR THEM ANY OTHER OBLIGATION.

CETAC ASSUMES NO RESPONSIBILITY FOR INCIDENTAL CONSEQUENTIAL OR OTHER DAMAGES (EVEN IF ADVISED OF SUCH POSSIBILITY), INCLUDING BUT NOT LIMITED TO, LOSS OR DAMAGE OF PROPERTY, LOSS OF REVENUE, LOSS OF USE OF THE UNIT, LOSS OF TIME, OR INCONVENIENCE.

This warranty and all matters arising pursuant of it shall be governed by the laws of the State of Nebraska, United States.

Returned Product Procedures

Claims for shipment damage (evident or concealed) must be filed with the carrier by the buyer. CETAC must be notified within ninety (90) days of shipment of incorrect materials. No product may be returned, whether in warranty or out of warranty, without first obtaining approval from CETAC. No replacements will be provided, nor repairs made, for products returned without such approval. Any returned product must be accompanied by a return authorization number. The expense of returning the unit to CETAC for service will be paid by the buyer. The status of any product returned later than thirty (30) days after issuance of a return authorization number will be subject to review. Shipment of repaired products will generally be made forty-eight (48) hours after the receipt.

Do not return products which are contaminated by radioactive materials, infectious agents, or other materials constituting health hazards to CETAC employees.



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Returned Product Warranty Determination

After CETAC’s examination, warranty or out of warranty status will be determined. If a warranted defect exists, the product will be repaired at no charge and shipped prepaid back to the buyer. If the buyer desires an air freight return, the product will be shipped collect. Warranty repairs do not extend the original warranty period.

If an out of warranty defect exists, the buyer shall be notified of the repair cost. At such time the buyer must issue a valid purchase order to cover the cost of repair and freight, or authorize the products to be shipped back as is, at the buyer’s expense. Failure to obtain a purchase order number approval within fifteen (15) days of notification will result in the products being returned as is, at the buyer’s expense.



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73

8 Operating the XLR-8 Using a Terminal

Program

The autosampler can be controlled using a serial communications protocol. You can use any terminal emulation program, including:

C-Term. This program is included on the CD, and runs on Windows 2000 and later. (recommended)

HyperTerminal. This program was supplied with versions of the Windows operating system through Windows XP.

This chapter explains how to operate a CETAC autosampler using either of the two programs.

Using C-Term™ C-Term is a simple terminal program developed to validate the installation and functionality of various CETAC devices. C-Term communicates through a serial (RS-232) port on the host computer. If the device is connected to a USB port, the device driver will create a virtual serial port.

C-Term is provided on the CETAC software CD.

Starting C-Term

1 Check that the communication port connectors are properly attached between the host computer and the CETAC device.

If the communications interface between the CETAC device and the host computer is not established correctly, the device will not function.

2 On the Start Menu, click All Programs, then CETAC Technologies, then C-Term.


Chapter 8: Operating the XLR-8 Using a Terminal Program

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Overview of the C-Term Window

Once C-Term is loaded, the window shown in Figure 8-1 will open. The majority of C-Term’s functions are available from this window.

Figure 8-1. C-Term Window

By default, typed commands are sent to the CETAC device connected to the opened port. The typed commands will appear in light green in the terminal buffer. Responses from the device will appear in red. Non-printing characters such as carriage returns will appear as ASCII hexadecimal numbers surrounded by square brackets, for example, [0D] is the carriage return character.

Figure 8-2. Outgoing Commands Shown in Green and Incoming Responses Shown in Red



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Configuring C-Term

By default, C-Term attempts to open COM1 the first time it is executed. If the COM port that the CETAC device is connected to is not the default (COM1), then it will be necessary to configure C-Term to use the desired port.

The default communications configuration is appropriate for use with the vast majority of CETAC devices. Modifying the default settings is described below.

NOTE

If COM1 (or the currently selected COM port) is in use by another program or is otherwise unavailable, a warning dialog box will pop up when C-Term starts stating that the COM port could not be opened.

1 On the Tools menu, click Setup Serial Port.

Figure 8-3. Serial Port Setup Window

2 Select the desired COM port and, if necessary, the Baud rate used by the connected device then click OK.

The window will close and the settings will be saved. These new settings will be applied immediately and used thereafter unless changed again.

NOTE

Except for the ASX-8x00, all CETAC devices communicate at 9600 baud (which is the default.)

NOTE

Only installed COM ports, including USB virtual COM ports, will appear in the Comm Port menu.

Setting Preferences

If desired, the size of the scrollback buffer or the color of the outgoing and incoming texts can be changed (to work around color blindness, for example).

1 On the Tools menu, click Preferences.



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Figure 8-4. Preferences Window

To change the Scrollback Buffer Length, either type the new value in the field or use the arrows adjust the value up or down.

To change text color, click on the color bar and a color selection dialog box will appear. Select the new color and click OK.

2 Click Save to apply your settings and close the window.

Using HyperTerminal

1 Using a serial cable, connect the CETAC autosampler with the computer. Plug each end of the serial cable into the COM 1 port of the autosampler and the computer, respectively.

2 Turn on the computer and select the Accessories folder. Select the HyperTerminal folder and then the HyperTerminal program.

3 A window will appear as in Figure 8-5. Enter COM 1 in the name box. Press the OK button.



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Figure 8-5. “Connection Description” Window

4 In the Connect To window, set Connect Using to COM 1, then click OK.

Figure 8-6. “Connect To” Window

5 In the Properties window, set Bits per second to 9600 and Flow control to None.



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Figure 8-7 . “COM1 Properties” Window

6 Click OK.

The HyperTerminal window will open.

Figure 8-8 . “Com 1 Hyperterminal” Window

7 On the File menu, click Properties.



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8 On the Settings tab, click ASCII Setup

Figure 8-9 . “Com 1 Properties” Window

9 Click ASCII Setup.

10 Enable “Echo typed characters locally” and “Append line feeds to incoming line ends,” then click OK.



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Figure 8-10. “ASCII Setup” Window

11 Turn on the autosampler.

The HyperTerminal window should display an OK.

Autosampler Commands The following commands will produce various responses of the autosampler.

Command Description

Ver Returns firmware version.

Home Returns all axis to home position, same as power up.

Tray=n Defines tray size and n= #of positions.

Tube=row-col-down Tube=row-column-down as defined by tray command. Example: Tube=3-4-150

Pmp on Pump on if unit has a pump.

Pmp off Pump off if unit has a pump.

Rinse Moves sample probe to the rinse position, extends and retracts the probe 3 times and starts rinse pump. Stays in down position with pump running. up,pmp off stops the pump.

Down=n Moves the Z-axis down by the parameter(n) in mm. Do not run Down command if sample probe is not all the way up on up position or damage may occur to probe or Z-axis.

Up Moves Z-axis to upper most postion.

Table 3 Autosampler Commands

You can use these commands to determine if the CETAC autosampler is communicating and functioning properly. If more assistance is needed, please contact CETAC customer service.


Chapter 9: Safety and Regulatory Information

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9 Safety and Regulatory

Information

Review this product and related documentation to familiarize with safety markings and instructions before you operate the instrument.

Characteristics

Environmental Characteristics

Operating Temperature +5° C to +40° C (+41° F to +104° F)

Non-Operating Temperature +0° C to +55° C (+32° to +131° F)

Operating Altitude Up to 2,000 m (6,562 ft)

Operating Relative Humidity 0% to 80% non-condensing for temperatures up to 31° C, decreasing linearly to 50% at 40° C

Non-Operating Relative Humidity 0% to 95% non-condensing

Pollution Degree Pollution Degree 2 Normally no pollution or only dry, non-conductive pollution occurs. The pollution has no influence. Occasionally, however, a temporary conductivity caused by condensation may be expected.

Table 4: Environmental Characteristics

For indoor use only.

Avoid sudden, extreme temperature changes which could cause condensation on circuit boards in the product.



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See page 12 for information on chemical compatibility.

Electrical Characteristics

Power requirements

Power Supply Input: AC Voltage, Frequency, and Current

100-240 V ~ (operation is safe for mains supply voltage fluctuations up to ±10% of the nominal voltage) 47-63 Hz 1.07 A max

Installation Category: CAT II (Line voltage in appliance and to wall outlet) Overvoltage Category: Category II of IEC 60364-4-443 Output:

24 V DC, 3.3 A max

Autosampler Head Input:

DC Voltage and Current 24 V

1 A max Installation Category: CAT I (Mains isolated) Use only with the XLR-8 base unit.

XLR-8 Base Unit Input:

DC Voltage and Current 24 V 1.3 A max

Installation Category: CAT I (Mains isolated) Use only with the provided power supply. Output:

24 V DC, 1 A max The two power connectors on the back of the XLR-8 base, one with 5 pins and one with 6 pins, are directly connected to one another. Either may be used as the input, and the other used as the output.

Table 5: Power Requirements

Input and output connectors

All terminals allow a maximum current of 500MA @ 24VDC, unless otherwise noted.

COM DB-9 RS-232 serial connection to a controller PC.

Table 6: Electrical Input and Output Connectors on XLR-8 Base

COM 1 DB-9 RS-232 serial connection to a controller PC.



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AUX I/O For use only with CETAC accessories such as the QuickWash accessory. Max input/output+24V DC.

USB USB connection to a controller PC.

AUX MODULE

For use only as directed by CETAC. Max input/output+24V DC.

Table 7: Electrical Input and Output Connectors on the Autosampler Head



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Safety Notices

INJURY HAZARD If the equipment is used in a manner not specified by CETAC Technologies, the protection provided the equipment may be impaired.

Repair or service that this not covered in this manual should only be performed by qualified personnel.

Power Cord Set Requirements

The power cord set supplied with your instrument meets the requirements of the country where you purchased the instrument. Power is supplied to the autosampler through the included 24v power supply.

Power Cord Safety Maintenance

The operator should check the power/signal supply cord condition. The equipment should not be operated if the mains inlet is cracked or broken. Any obvious damage to the case (from a drop or fall) should be checked by service personnel for loose or damaged parts. See individual parts lists for approved replacement parts

Mains Disconnect

The power switch on the rear panel is not the mains disconnect. Power mains disconnect is accomplished by unplugging the power cord at the power supply or at the wall outlet. Ensure the power cord is easily accessible and removable, in the event of an emergency which requires immediate disconnection.

SHOCK HAZARD Ensure that power cord is disconnected before removal of any covers.

WARNING

WARNING



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Cleaning Instructions

For additional cleaning information, see “cleaning” in the index.

To clean the exterior surfaces of the instrument, complete the following steps:

1 Shut down and unplug the instrument.

2 Wipe the instrument exterior surfaces only using a towel dampened with a lab-grade cleaning agent.

3 Repeat step 2, using a towel dampened with clear water.

4 Dry the instrument exterior using a dry towel.

SHOCK HAZARD Do not allow any liquid to enter the instrument cabinet other than as intended through the specified tubing, or come into contact with any electrical components. The instrument must be thoroughly dry before you reconnect power, or turn the instrument on.

Mechanical Hazards

If you insert any part of your body between the moving parts of the autosampler, you could be injured.

1 PINCH HAZARD Keep fingers, hair, and loose clothing away from the moving parts of the autosampler. 2 – PUNCTURE HAZARD and other autosampler-related hazards: See autosampler manual. ABRASION HAZARD. Keep away from moving parts when the system is powered on.

WARNING

WARNING

1

1 1

2



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Operating Environment

SHOCK HAZARD To reduce the risk of fire hazard and electrical shock, do not expose the unit to rain or humidity. To reduce the risk of electrical shock, do not open the cabinet. All maintenance is to be performed by an Authorized CETAC Service Provider. Protection provided by the equipment may be impaired if the equipment is used in a manner not specified by the manufacturer.

SHOCK HAZARD Equipment is not intended for wet locations. Miscellaneous liquids in the equipment could cause hazardous conditions.

EXPLOSION HAZARD Do not operate in an explosive atmosphere.

CHEMICAL HAZARDS Learn about the chemicals which will be used in and near the autosampler, and observe the necessary precautions. Always use appropriate personal protective equipment, including protective eyewear.

WARNING

WARNING

WARNING

WARNING



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Explanation of Caution and Warning Notices

Warning symbol marked on equipment. This symbol means “Attention! Refer to the manual.”

Crush Hazard / Pinch Point – Keep hands clear of moving parts. X, Y, Z axis movement may crush hand.

Puncture Hazard – Moving parts can cause severe injury. Do not put hand under the probe assembly!

Lifting Hazard – Single person lift could cause injury. Use assistance when moving or lifting.

The WARNING notice denotes a hazard. It calls attention to a procedure, practice, or the like, that, if not correctly performed or adhered to, could result in personal injury. Do not proceed beyond a WARNING notice until the indicated conditions are fully understood

The CAUTION notice calls attention to a procedure or practice that if not correctly performed or adhered to, could result in equipment damage, loss of data, or inaccurate data. Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met.

WARNING

CAUTION



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Avertissements en Français This section provides French translations of notices which may appear on the instrument or on other instruments used as part of the measurement system.

AVERTISSEMENT POUR UNE PROTECTION CONTINUÉ CONTRE LES RISQUES D’INCENDIE, REMPLACER UNIQUEMENT PAR DES FUSIBLES DE MÊME TYPE ET AMPÈRAGE.

AVERTISSEMENT

TOUT CONTACT AVEC LES HAUTES TENSIONS PEUT ENTRAINER LA MORT OU DES BLESSURES SÉVÈRES. CE PANNEAU NE DOIT ÊTRE ENLEVE QUE PAR UN RÉPARATEUR QUALIFIÉ.

Electromagnetic Interference FEDERAL COMMUNICATIONS COMMISSION (FCC) NOTICE

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a commercial installation.

This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. Operation of this equipment in a residential environment is likely to cause harmful interference, in which case the user will be required to correct the interference at his expense.

MODIFICATIONS

The FCC requires the user to be notified that any changes or modifications made to this device that are not expressly approved by CETAC Technologies may void the user's authority to operate the equipment.

CABLES

Connections to this device must be made with shielded cables with metallic RFI/EMI connector hoods to maintain compliance with FCC Rules and Regulations.

CANADIAN NOTICE

This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus as set out in the interference-causing equipment standard entitled "Digital Apparatus" ICES-001 of the Department of Communications.

AVIS CANADIEN

Cet appareil numerique respecte les limites de bruits radioelectriques applicables aux appareils numeriques de Classe A prescrites dans la norme sur le materiel brouilleur: "Appareils Numeriques," NMB-001 edictee par le ministre des Communications.



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Explanation of Regulatory Marks

Do not dispose in domestic household waste.

The affixed label indicates that you must not discard this electrical/electronic product in domestic household waste, in compliance with the European Waste Electrical and Electronic Equipment Directive (WEEE, 2002/96/EC).

For instructions on how to return end-of-life equipment, producer-supplied electrical accessories, or auxiliary items for proper disposal please contact the supplier or importer. In the event a supplier cannot be reached, contact CETAC Technologies customer service department at 1 (800) 369 2822.

The CE mark is a registered trademark of the European Community. This CE mark shows that the product complies with all the relevant European Legal Directives.



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91

10 Glossary

Analytical Instrument: The instrument, typically an ICP or ICP-MS, to which the autosampler is connected.

Arm: The autosampler arm that extends from the front of the autosampler cabinet. The arm moves left/right and the Z-drive assembly moves forward/back on the arm.

Dual Flowing Rinse Station: The autosampler component used to clean the sample probe with two separate rinse solutions.

ETFE: Ethylenetetraflouroethylene (Tefzel®).

FEP: Fluorinated ethylene propylene.

Home Block: See Y-Axis Slider Block.

Host Computer: The computer that controls operation of the ICP / ICP-MS instrument to which the CETAC autosampler is attached, and through which the autosampler is controlled.

Hz: Hertz.

ID: Inside diameter.

ICP/ICP-AES/ICP-MS: Inductively Coupled Plasma / Inductively Coupled Plasma Atomic Emission Spectrometer / Inductively Coupled Plasma-Mass Spectrometer.

ICP Software: The measurement automation software on the host computer which controls the measurement system. In addition to controlling the spectrometer, this software sends commands to the autosampler so that samples are introduced at the right time. “ICP” in this context can refer to both Instrument Control Program and Inductively Coupled Plasma spectroscopy.

ID: Inside diameter.

I/O Ports: The connections used for establishing communication between the XLR-8 and the host computer or other external devices.

LED: Light-emitting diode.

PEEK: Polyetheretherketone.


Chapter 10: Glossary

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Peristaltic Pump: In the context of this manual, usually refers to the on-board peristaltic pump controlling the movement of the rinse solution to the rinse station on the autosampler.

PET: Polyethylene terephthalate.

PFA: Perfluoroalkyoxy.

PPS: Polyphenylene sulphide.

PTFE: Polytetraflouroethylene.

PVDF: Polyvinylidene fluoride resin.

Rinse Alignment Block: The support structure on the autosampler, which holds the autosampler cover in place and provides a mounting location to secure the rinse station.

Rinse Solution: The solution used to clean the sample probe.

Rinse Station: The autosampler component used to clean the sample probe with a rinse solution.

Sample Probe: The rigid tube that moves the analyte from the sample vial to the sample transfer tubing.

Sample Tray: The sample tray holds the samples racks in a fixed relative position.

Sipper: Another name for the sample probe.

Status LED: Light Emitting Diode on the front of the autosampler, which indicates readiness for operation.

UHMW-PE: Ultra-high molecular weight polyethylene.

VAC: Volts alternating current.

VDC: Volts direct current.

X-Axis: The left-to-right axis of the autosampler.

Y-Axis: The front-to-back axis of the autosampler.

Z-Axis: The up-and-down axis of the autosampler.

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Index autosampler

probe installation, 29 rinse station, 58

avertissements, 88 avis Canadien, 88 chemical compatibility, 12 chemical hazards, 16 cleaning, 53, 85 commands

autosampler, 80 condensation. See humidity C-Term, 73 disposal, 89 earthing, 16, 35 electrical characteristics, 82 FCC notice, 88 grounding, 16, 35 humidity, 17, 81, 86 hyperterminal, 76 ICES 001, 88 ICP software, definition, 91 interference, 36, 88 lamps

power, 8, 22, 44, 49 power supply, 65

LEDs lamps. See

lifting instructions, 17 mains disconnect, 84 nitric acid, 16 operator qualifications, 7

overvoltage category, 82 physical characteristics, 15 pollution degree, 81 power

connections, 34 power-on procedure, 49 requirements, 16, 82

power cord, 84 probe, 55 qualifications, operator, 7 regulatory notices, 81 return procedure, 69 safety information, 81 sample probe

probe. See service, 69 speed, adjusting, 62 temperature

operating, 81 recommended, 47 storage, 12

tubing kinks, 17 material, 12

vibration, 16 warranty, 69 waste routing, 16 WEEE notice, 89 weight, 15 work surface requirements, 16 Z-drive, 55

Manual Part Number 480192 Rev 2 Printed in USA

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