ELECTRONIC WEIGHT INDICATOR - svenskavag.eusvenskavag.eu/support/Vaginstrument (Weighing...

ELECTRONIC WEIGHT INDICATOR

MODEL LD5208 TTEECCHHNNIICCAALL MMAANNUUAALL

LD5208

HEAD OFFICE:

LEON ENGINEERING SA 8, TSOKA STR, THESI XIROPIGADO 19600 MANDRA ATHENS, GREECE TEL: +30 210 7770 936, +30 210 5552048 FAX: +30 210 7758925

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LD5208 TECHNICAL MANUAL, REV. 0 : NOVEMBER 2005 1

http://www.leon-engineering.com/

RIGHTS AND LIABILITIES All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, mechanical, photocopying, recording, or otherwise, without the prior written permission of Leon Engineering SA. No patent liability is assumed with respect to the use of the information contained herein. While every precaution has been taken in the preparation of this book, Leon Engineering SA assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein. The information herein is believed to be both accurate and reliable. LEON ENGINEERING, however, would be obliged to be informed if any errors occur. LEON ENGINEERING cannot accept any liability for direct or indirect damages resulting from the use of this manual. LEON ENGINEERING reserves the right to revise this manual and alter its content without notification at any time. Neither Leon Engineering SA nor its affiliates shall be liable to the purchaser of this product or third parties for damages, losses, costs, or expenses incurred by purchaser or third parties as a result of: accident, misuse, or abuse of this product or unauthorized modifications, repairs, or alterations to this product, or failure to strictly comply with Leon Engineering operating and maintenance instructions. Leon Engineering SA shall not be liable against any damages or problems arising from the use of any options or any consumable products other than those designated as Original Leon Engineering Products.

✎ NOTICE: The contents of this manual are subject to change without notice. Copyright © 2004 by Leon Engineering SA, Athens, Greece, European Union ✎ NOTE

Notes have important information and useful tips on the operation of your equipment.

WARNING Warnings must be followed carefully to avid bodily injury.

CAUTION

Cautions must be observed to avoid damage to your equipment.


TABLE OF CONTENTS

1 DECLARATION OF CONFORMITY................................................... 5

2 STANDARD WARRANTY................................................................. 6

3 ORDERING INFORMATION & OPTIONS ........................................ 7

4 SPARE PARTS LIST ........................................................................ 7

5 MODIFICATIONS ........................................................................... 8

6 INTRODUCTION ............................................................................ 8

7 SPECIFICATIONS........................................................................... 8 7.1 GENERAL ............................................................................................................................................................ 8 7.2 ANALOGUE INPUT ............................................................................................................................................... 9 7.3 SERIAL OUTPUTS................................................................................................................................................. 9

8 UNPACKING................................................................................... 9

9 HOW TO CONFIGURE AND WORK WITH YOUR INDICATOR ....... 10

10 INSTALLATION.......................................................................... 11 10.1 MOUNTING LOCATION – ENVIRONMENTAL CONSIDERATIONS .......................................................................... 11 10.2 MOUNTING THE INDICATOR ............................................................................................................................ 11

10.2.1 Table- or Wall-mount version – Stainless steel enclosure....................................................................... 11 10.3 WIRING........................................................................................................................................................... 11 10.4 POWER............................................................................................................................................................ 12 10.5 LOAD CELL CONNECTIONS ................................................................................................................................ 13

10.5.1 Specifications........................................................................................................................................... 13 10.5.2 Connection diagram of load cells with junction box and indicator......................................................... 13

10.6 SERIAL PORT CONNECTIONS.............................................................................................................................. 14 10.6.1 RS232C Connection................................................................................................................................ 14

11 TURNING THE INDICATOR ON ................................................. 15

12 FRONT PANEL SURVEY.............................................................. 16 12.1 WEIGHT DISPLAY .............................................................................................................................................. 16 12.2 STATUS ANNUNCIATORS ................................................................................................................................... 16 12.3 FRONT PANEL KEYS........................................................................................................................................... 17

13 DIALOGUE STRUCTURE............................................................. 18 13.1 ACCESSING THE MAIN DIALOGUE (*)................................................................................................................. 18 13.2 NAVIGATING THROUGH THE DIALOGUES........................................................................................................... 19 13.3 DIALOGUE STRUCTURE ..................................................................................................................................... 19

14 FUNCTION MENU ...................................................................... 20 14.1 ACCESSING THE FUNCTION MENU ..................................................................................................................... 20 14.2 LIST OF FUNCTION PROGRAMS .......................................................................................................................... 20

15 SCALE PARAMETERS AND CALIBRATION ................................ 23 15.1 SETTING THE SCALE PARAMETERS - DIALOGUE PAR........................................................................................ 23 15.2 CALIBRATING THE SCALE - DIALOGUE CALIBRATION.................................................................................. 26


15.2.1 Dialogue CAL / S-CAL (calibration with standard weights)................................................................. 26 15.2.2 Saving calibration data – Dialogue STORE.......................................................................................... 28 15.2.3 Dialogue CAL / E-CAL (electronic calibration).................................................................................... 30

16 CONFIGURING THE INDICATOR............................................... 32 16.1 DIALOGUE SET UP........................................................................................................................................... 32 16.2 PROGRAMMING THE OPERATIONAL PARAMETERS - DIALOGUE SETUP/SETUP1............................................. 33 16.3 CONFIGURING SERIAL PORT 1 (RS232) - DIALOGUE SETUP / SETUP 2.......................................................... 34 16.4 COMMUNICATION MODES OF SERIAL PORT – RS232 ........................................................................................ 35

16.4.1 Printer output (SETUP 2, 2.t=01, 03, 04, 05, 06, 07, 08, 10, ) ............................................................... 35 16.4.2 Continuous weight output (SETUP 2, 2.t=02)........................................................................................ 36 16.4.3 Print on demand mode (SETUP 2, 2.t=09) ............................................................................................ 36

16.5 PRINTING WEIGH TICKETS ................................................................................................................................. 36 16.5.1 Standard print formats ............................................................................................................................ 36

16.6 PROGRAMMING THE ANIMAL WEIGHING PARAMETERS – DIALOGUE ..................................................................... 38 16.7 PROGRAMMING THE PIN (PERSONAL IDENTIFICATION NUMBER)...................................................................... 38

17 CALIBRATION SECURITY.......................................................... 39 17.1 CALIBRATION LOCK JUMPER (CAL LOCK) ..................................................................................................... 39 17.2 AUDIT TRAIL COUNTER (A.T.CNT)................................................................................................................. 39 17.3 SECURING AND SEALING ................................................................................................................................... 40

18 OTHER FACILITIES ................................................................... 41 18.1 USING THE INDICATOR AS REMOTE DISPLAY ..................................................................................................... 41 18.2 HIGH RESOLUTION MODE .................................................................................................................................. 41 18.3 LOCKING THE FRONT PANEL KEYS......................................................................................................................... 41 18.4 INSTALLATION OF DEFAULT PARAMETERS ........................................................................................................ 42 18.5 UPDATING THE INDICATOR WITH NEW SOFTWARE VERSIONS (OPTION) ............................................................ 43

18.5.1 Preparing the PC flash programmer software ........................................................................................ 43 18.5.2 Updating procedure................................................................................................................................. 43

19 TROUBLE SHOOTING ................................................................ 44 19.1 MAINTENANCE.................................................................................................................................................. 44 19.2 HANDLING OF MALFUNCTIONS.......................................................................................................................... 44

20 PUBLICATION COMPLAINS REPORT ........................................... 46


1 DECLARATION OF CONFORMITY

LEON ENGINEERING S.A INDUSTRIAL WEIGHING AND PROCESS AUTOMATION

TSOKA 8 Str., THESI XIROPIGADO 19600 MANDRA, ATTICA GREECE

Declaration of Conformity

The Non-Automatic Weighing Instrument

III

Manufacturer:

LEON ENGINEERING S.A.

Type/Model:

LD5208

No of the EC Type Approval Certificate

DK 0199.27

No of relevant Test Certificates (Where Appropriate)

Corresponds to the production model described in the EC Type-Approval Certificate and to the requirements of the following Directives:

90/384/EEC, 89/336/EEC as amended by EC Directive 92/31/EEC, 93/68/EEC by application of the

harmonised standards EN-55011 Class A and EN-45501 73/23/EEC as amended by EC Directive 93/68/EEC by application of the harmonised standard EN-60950

Signature: Dimitrios Ploumakis

Date: 23.12.2005

Being the responsible person employed and appointed by Leon Engineering S.A.


2 STANDARD WARRANTY LD52xx Weighing Indicators Series®

Leon Engineering SA warrants that the equipment covered by this warranty will be free from defects in workmanship and materials for a period of 1 (one) year from date of installation or eighteen (18) months from date of shipment to the buyer, whichever comes first. Should any such defects be found and reported, Leon Engineering (herein referred to as the "Company"), will, at its option, refund the purchase price or furnish replacements parts. The following are NOT covered under any of these warranties: 1) Initial installation and ongoing scale calibration. 2) Damage to scale components by gross abuse, fire, flooding, explosion, water, voltage surges, or civil disturbance, or other external events. 3) Normal maintenance or consumable items. This warranty information covers the all Models of LD5200 SERIES (LD5204, LD5206, LD5208, LD5218, LD5250, DJB, RDT52, DWI) THE COMPANY EXPRESSLY WARRANTS THE EQUIPMENT MANUFACTURED BY IT AS SET FORTH HEREIN. THE COMPANY MAKES NO OTHER WARRANTIES EITHER EXPRESSED OR IMPLIED (INCLUDING WITHOUT LIMITATION WARRANTIES AS TO MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE). IN ADDITION, THIS DOCUMENT SHALL CONSTITUTE THE SOLE AND EXCLUSIVE REMEDIES OF THE BUYER FOR ANY BREACH BY THE COMPANY OF ITS WARRANTIES HEREIN. COMPANY LIABILITY UNDER THIS WARRANTY OR ANOTHER WARRANTY WHETHER EXPRESSED OR IMPLIED IN LAW OR FACT SHALL BE LIMITED TO THE REPAIR OR REPLACEMENT OF DEFECTIVE MATERIAL, AND IN NO EVENT SHALL IT BE LIABLE FOR CONSEQUENTIAL OR INDIRECT DAMAGES. APPLICATION GUIDES The only warranty of Leon Engineering is for the product it supplies under the Product Warranty Statement listed above.

CAUTION READ this manual BEFORE operating or servicing this equipment: FOLLOW these instructions carefully. SAVE this manual for future reference. DO NOT allow untrained personnel to operate, clean, inspect, maintain, service, or tamper with this equipment. ALWAYS DISCONNECT this equipment from the power source before cleaning or performing maintenance. CALL LEON ENGINEERING for parts, information, and service.

WARNING ONLY PERMIT QUALIFIED PERSONNEL TO SERVICE THIS EQUIPMENT. EXERCISE CARE WHEN MAKING CHECKS, TESTS AND ADJUSTMENTS THAT MUST BE MADE WITH POWER ON. FAILING TO OBSERVE THESE PRECAUTIONS CAN RESULT IN BODILY HARM.

WARNING FOR CONTINUED PROTECTION AGAINST SHOCK HAZARD CONNECT TO PROPERLY GROUNDED OUTLET ONLY. DO NOT REMOVE THE GROUND PRONG.


WARNING DISCONNECT ALL POWER TO THIS UNIT BEFORE REMOVING THE FUSE OR SERVICING.

WARNING BEFORE CONNECTING/DISCONNECTING ANY INTERNAL ELECTRONIC COMPONENTS OR INTERCONNECTING WIRING BETWEEN ELECTRONIC EQUIPMENT ALWAYS REMOVE POWER AND WAIT AT LEAST THIRTY (30) SECONDS BEFORE ANY CONNECTIONS OR DISCONNECTIONS ARE MADE. FAILURE TO OBSERVE THESE PRECAUTIONS COULD RESULT IN DAMAGE TO OR DESTRUCTION OF THE EQUIPMENT OR BODILY HARM.

CAUTION OBSERVE PRECAUTIONS FOR HANDLING ELECTROSTATIC SENSITIVE DEVICES.

3 ORDERING INFORMATION & OPTIONS LD5208

INDICATOR LD5208 LCD M10600 LCD display, Plastic housing, mains/battery, RS232 port

INDICATOR LD5208 LCD INOX M10600 LCD display, stainless steel housing, mains, RS232 port

OPTIONS FOR LD5208

4 SPARE PARTS LIST

Type Code Description

PCBs 2407175 Main PCB (5208)

2407176 Keyboard Membrane

2407180 Membrane Slide-in Membranes and Labels

2407177 Plastic housing set

2407183 2407184+

Connector Loadcell

2401948 Battery 6V/4AH

2407178 Power adapter 230Vac 9Vdc/0.8a

Various


5 MODIFICATIONS Initial version.

6 INTRODUCTION The electronic weight indicator LD 5208 is a compact micro-controller based unit specifically designed for use on systems utilizing strain gauge load cells. The standard configuration includes: 1. High accuracy analog to digital converter (max 550.000 internal counts). 2. Front panel with 7 membrane keys with tactile feedback. 3. 6 digits, 7 segments, LCD display black (24 mm) plus annunciators. 4. Non volatile memory for system parameters and calibration data. 5. Serial port RS232C (COM1) for printing weighing data on a serial printer or host computer. 6. The microcontroller technology allows the instrument to perform in software all measuring

functions, operator input-output, automatic controls and sequences necessary for the operation of weighing systems.

7. The setting of the unit is done through a guided keyboard operation, enabling the adaptation to operating environment and system requirements.

8. A totaliser and counter is available that may be viewed or printed. 9. Several print formats are available selectable in setup. 10. A piece count facility, with selectable sample size, is available in the standard software. 11. Animal weighing with selectable number of samples is also included in the software.

7 SPECIFICATIONS

7.1 General CPU CHARACTERISTICS MCU 89C58RD, 32KB Flash ROM, 1KB RAM, 128B serial EEPROM . SELF DIAGNOSTICS MCU watchdog. Memory - I/O failure, Program check. DISPLAYS 6 digit LCD black (24mm height) plus annunciators for Net

mode, No Motion, Zero, Tare value, Weigh mode, Piece Counting mode, battery charge status.

KEYBOARD 6 key membrane type with tactile feedback plus Power ON/OFF. APPROVALS EU type approval 10.000 divisions, DK 0199.27 & OIML R76 . ACCURACY CLASS III RESOLUTION Selectable up to 99.000 dd (in accordance with regulations). MAX TARE EFFECT - Max AUTO ZERO TRACK Off or 0.5 dd setup selectable. WEIGHT DIGITS 4,5 WEIGHT STEPS 1, 2, 5, 10, 20, 50,100,200 DIGITAL FILTER FIR automatically adjusted to conversion speed, plus post

filtering (Rolling average 1, 2, 4, 8, 16, 32 samples). DIGITAL CALIBRATION Dead load, Span and scale Parameters via keyboard commands.

Calibration may be performed by application of weights or by the mV/V values of the load cell data sheets.


7.2 Analogue input LOADCELL EXC/TION +5V switched polarity or + 5 VDC with sense. CONNECTION 6 wire technique. Max 10 load cells 350 Ohm each or

more provided min. input impedance not less than 35 Ohm

SIGNAL RANGE -0.25 - 1.75mV/V (Gain=10), -0.25 - 3.5mV/V (Gain=20) SENSITIVITY min 0,4 µV / digit (VSI) approved scales. min 0,1 µV / digit non-approved scales. INPUT AMPLIFIER Input noise 0.3µVp-p. Input bias current 10nA typical. A/D CONVERTER Sigma delta 550.000 internal counts max.

Conversion speed 3 , 7, 14, 28 Hz (selectable). LINEARITY Within 0,002% of full scale. SPAN TEMP - COEFF < 2 ppm / oC. ZERO TEMP - COEFF < 2 ppm / oC. LONG TERM STABILITY 0.005 % of full scale per year.

7.3 Serial outputs SERIAL PORT 1: RS232C Full duplex.

2400 – 38400 baud , 7 or 8 data bits , even or no parity. Printer, weight output.

8 UNPACKING Prior to unpacking the equipment, examine the carton for exterior shipping damage and if any notify the carrier immediately. Remove the equipment from the carton and plastic bag. Inspect extent of supply for any sign of damage. Save packaging material. Verify that your indicator has been shipped with the following items :

• Indicator LD5208 . 230VAC to 9VDC/800mA, mains power adapter. User manual. An accessory kit including the connection plugs for the load cell and the serial port.


9 HOW TO CONFIGURE AND WORK WITH YOUR INDICATOR

In order to set the indicator in use, the sequence of steps is described below : Install the indicator at the selected position (Paragraph 10.2) and perform the necessary

connections: load cell connection – Paragraph 10.6 serial port connections – Paragraph 10.7

Power on the instrument – Chapter 11

Enter the dialogue PAR and program the scale parameters – Paragraph 15.1

Enter the dialogue CAL and calibrate the scale – Paragraph 15.2

Enter the dialogue STORE and save calibration data – Paragraph 15.2.2

Enter the dialogue SETUP and configure

operational parameters– Paragraph 16.2 serial port parameters– Paragraphs 16.3 up to 16.6

Select the desired weigh ticket format or create your own weigh ticket and download to the

indicator – Paragraph 16.7 Secure the calibration by inserting the CAL LOCK jumper – Chapter 17

Program your unique access code (PIN) – Paragraph 16.13

Get familiar with the other facilities the indicator offers – Chapter 18


10 INSTALLATION

10.1 Mounting location – Environmental considerations The mounting location must be such that the instrument is not subject to excessive vibrations, heat or humidity. Avoid direct sunlight on the front of the instrument. The unit has to be installed at the right height to allow an easy reading of the display and convenient keyboard operation. AMBIENT : Storage - 10 to +70 0C. TEMPERATURE Operating -10 to +40 0C. HUMIDITY : 40 to 90% RH (non condensing). VIBRATION : Severe vibration can affect the accuracy of weighing and damage electric / electronic components. AIR : The surrounding air should be dust free and not contain any corrosive

gasses or materials which could adversely affect the equipment. PROTECTION : IP40. ELECTROMAGNETIC : Heavy electrical equipment should not be installed close to FIELDS the weighing equipment. INCOMING AND : Relays and contactors connected to the equipment must have OUTGOING SIGNALS reliable and effective interference suppression. This also applies to

other equipment located within a distance of 3m from our equipment. Cabling must be performed according to normal practice.

NOTES : - WELDING on or in the vicinity of the equipment is strictly prohibited. - STATIC loads, caused by thunderstorms, have to be prevented from

developing by use of reliable lightning conductors. - ENSURE that the cooling of the equipment is not obstructed.

10.2 Mounting the indicator All connections to the instrument are made through the rear panel connectors. Strain reliefs are supplied with the connectors. The shield should be connected to the metal frame of the connector. 10.2.1 Table- or Wall-mount version – Stainless steel enclosure

10.3 Wiring Load cells : Use load cell cable 6 x 0,34 mm2 shielded for the sensor. Serial communications : Use 3 x 0,34 mm2 shielded for RS232C connection and 2x0,34 mm2

twisted pair and shielded for RS485 connection.


10.4 Power The instrument is powered from external power adaptor (9VDC/800mA) or internal battery. Battery charging is performed while the external power supply is connected. As the instrument is computer controlled it requires clean power for reliable operation. Power supplied should come from a source that is isolated from other process equipment.

WARNING Verify that the AC POWER SOCKET outlet is properly protected. To avoid shock hazards, always be certain that the power cord is disconnected from the wall

outlet BEFORE opening the enclosure. Even though the instrument may have been SWITCHED OFF, high voltage is present inside

the enclosure as long as power cord is connected to a power source. DO NOT USE any other type of power adaptor than the one supplied with the indicator. DO NOT create a safety hazard by defeating the grounding feature.


10.5 Load cell connections 10.5.1 Specifications CABLE TYPE : Use load cell cable 6 x 0,34 mm2 shielded. MAX. CABLE : 300m/ mm2 (cross sectional area of cable). UTILISATION : A -0.25 to 1.75 mV/V range is permitted (dead load inclusive) with GAIN=10mV or a -0.25 to 3.5 mV/V is permitted with GAIN=20mV. The load cells must be chosen so that the input signal to the controller is at least 0,4µV per scale increment. For load cell output less than 0,4µV/digit the controller will still be stable but the full temperature range accuracy is not guaranteed. LOAD CELL : 5VDC, fixed or alternating polarity (Setup selectable) for any EXCITATION numbers of load cells provided min. input impedance is 35 Ohm.

WARNING Do not run signal cables together with power cables. Connect the shielding where indicated on the drawing only Never use a megger to check wiring. Never use plastic insulating tape on load cell connections.

10.5.2 Connection diagram of load cells with junction box and indicator

Figure 5

✎ For corner correction of the scale follow instructions of junction box manual


✎ For 4-wire load cells connect +EX to +SEN and +EX to +SEN on the indicator side

10.6 Serial port connections 10.6.1 RS232C Connection Use 3 x 0,34 mm2 shielded

Figure 8.


11 TURNING THE INDICATOR ON 1. After all connections have been made, plug in the power cord. 2. Empty the scale 3. Press the ON/OFF key on the front panel to turn the indicator ON. 4. When the LD5208 is powered up a self test routine is initiated during which the following

data is displayed: Program Number

The software identification code is displayed briefly e.g. LD5208

Program Date The date of issue of the software version is displayed briefly e.g. 290705 (day - month - year)

Display segment test. All display segments are turned on then off for 2 sec (8.8.8.8.8.8)

5. The display shows the weight on the platform, then ZERO. If this weight is within the zero

range (+ 2% or 10% of the scale capacity), it will be zeroed automatically.

If the scale can not be zeroed Err 15 is displayed. Unload the scale and press ) key momentarily to acknowledge the error.

6. Power up the printer if one is connected to the LD5208. 7. The unit is ready for operation.

✎ If any other error message is displayed refer to List of Error codes, chapter 19. The instrument is being operated via the front panel keyboard . Access to the configuration and calibration parameters is accomplished via the Dialogues. Access to the operational tools and use of the indicator’s programs is accomplished via the Function Menu.


12 FRONT PANEL SURVEY

12.1 Weight display The indicator LD5208 has a 6-digit display for the indication of: measured weight (gross or net) error messages other messages indicating the status of the scale user guidance for the settings of the scale and the selection of operations technician guidance for the configuration and calibration procedures and checking purposes

OVER-RANGE is indicated by π π π π π π UNDER-RANGE is indicated by υ υ υ υ υ υ

12.2 Status annunciators At the left and right side of the digits small messages, called STATUS ANNUNCIATORS, appear in order to provide status information during the weighing process. O It is illuminated when the scale is stable.

ZERO It is illuminated when the scale weight is stable and within 1/4 division of actual zero. TARE It indicates that a tare value is being displayed. NET It is illuminated when the scale has been tared and the display is in NET mode. pcs It is illuminated when pieces are displayed.

b It lights up steady when the battery charge is being displayed. It flashes when the battery charge is below 20% of the scale capacity.

ob Battery charge indicator (under the display). Red colour: charging. Green colour: charging completed.


12.3 Front panel keys ! POWER ON-OFF KEY

-By pressing momentarily the unit turns on and initiates power on self-test. -By pressing again momentarily the unit turns off. ) ZERO / CLEAR ERROR/ESCAPE KEY

-It is used to reset the weight display to zero. Zeroing will be effective only if the scale is stable, in gross mode, and the weight is within + 2% (or 10%) of max weighing capacity. -If an error is present on the display press this key to acknowledge. -During a dialogue or entry, press this key to exit .

> NET / FUNCTION KEY / MOVE ONE DIGIT (Move left and right) -It is used to tare the scale. Taring will be effective only if the scale is stable and within the max weighing capacity. -If the scale has already been tared pressing of the key will cause the tare to be

cancelled and the weight display to return to Gross mode. - During an entry pressing this key will move the blinking cursor one digit to the right. -If the key is kept pressed for more than 3 sec the function menu is entered.

When the display shows Fn 00, press ( to return to weight display or type in the function code desired in order to select a function. The function menu is used to activate a number of software utilities. Refer to FUNCTION MENU, chapter 14 for details.

~ TARE RECALL KEY / PRESET TARE / INCREMENT FLASHING DIGIT In Net mode only : Pressing this key will cause the tare memory to be displayed briefly. In Gross mode: This key is used for entering a preset tare via the keyboard.

The display shows PtAre and then 0 0 0 0 0 . Use the > and ~ keys to enter the

desired tare and press P to proceed or press ) to abort. When P is pressed the tare keyed in will be automatically in effect and the weight display will turn to Net mode. To be accepted the tare value must be within the weighing range. The preset tare will be lost in power down.

( PRINT / ACCUMULATE KEY / ACCEPT ENTRY It is used to transmit weight data to peripheral devices via the serial port 1.

The transmitted weight will also be accumulated. The weight will be printed only if it is stable and within the weighing range of the indicator. Printing/accumulation will take place if enabled in setup (SETUP 1.1=1 and SETUP 2.t ≠00)

< TOTAL / BATTERY CHARGE KEY / SCROLL KEY (Move up and down) It is used to display the current accumulated total (activated only if SETUP 1.1=1).

Press < again to see the number of weighings.

Press < again to end the total display or

Press ( to print/delete the total. If the key is kept pressed for more than 5 sec the battery charge in % of capacity is

displayed. Press Y again to end battery charge indication.

& PIECE COUNTING KEY The key toggles between weight mode or piece counting mode


13 DIALOGUE STRUCTURE Configuring the indicator for your specific requirements is accomplished through a series of ‘’Dialogues’’. There is one main ‘’Dialogue’’ which includes 6 (six) ‘’Subdialogues’’. The ‘’Subdialogues’’ contain the parameters to be programmed. The Subdialogues are accessed using the front panel keys and viewed on the display. Using these dialogues the user can program parameters such as display resolution, scale capacity, conversion rate and others. These dialogues are also used to calibrate the indicator.

13.1 Accessing the main dialogue (*) 1. Power ON the instrument.

2. During the self test routine, while all display segments are on (all 8 on the display), press (

momentarily followed by > momentarily.

3. Display will show A C C E S S briefly if PIN is activated. Key in PIN number and then ( to get into the calibration menu.

4. Display shows S e t U P, which is the first item (sub dialogue) on the main dialogue. The following table shows the sequence in which the Sub dialogues will appear on the main dialogue.

SETUP Par CAL STORE INIT

The displayed dialogues depend on whether the instrument has been sealed against unauthorized calibration, to the Weights and Measures requirements. If it is sealed, the displayed dialogues are:

SETUP STORE


13.2 Navigating through the dialogues When using the dialogues the following procedures apply: To select a dialogue :

Repeatedly press ~ (scroll down) or < (scroll up) until the desired dialogue is displayed, then

press ( to select it. While in a Dialogue :

Use key < or ~ to move between the selections

Use key ( to enter the displayed value

Use key ) to exit and return to indication SetTUP To enter a numeric value :

Use > to move one digit to the right

Use ~ to increment flashing digit

Use ( to accept displayed number

To exit from any menu : Use ) key

✎ Alternatively the SETUP and CALIBRATION MENU maybe accessed with Fn 49

Press key > and hold pressed for 3 sec Display shows F n 0 0

Type in numbers 4 9 and press ( Display shows SETUP, the first item of the main dialogue. Navigate through the subdialogues as described above

13.3 Dialogue structure DIALOGUE SUBDIALOGUE DESCRIPTION SET UP SETUP 1 Operational parameters

SETUP 2 Serial port parameters

SETUP 4 SETUP 6

Animal weighing samples Locking front panel keys

Par 1.P, 2.P, 3.P, 4.P, 5.P, 6.P, 7.P, 8.1, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7, 8.8, 8.A, 8.b, 8.c, 0.P

General scale configuration

CAL S-Cal (Zero, Span) E-Cal (Zero, Span)

Calibration with standard weights Electronic calibration

STORE

Saves calibration or configuration data and exits SetUP

INIT Loads default configuration data and resets the scale


14 FUNCTION MENU The function menu enables the selection of a number of software programs indirectly. Such programs are the selection of the setup and calibration dialogues, the high resolution mode, selecting the desired print format and other service and checking facilities.

14.1 Accessing the Function menu While in the Weighing Mode, press key > and hold pressed for ~ 3 sec. Display shows Fn 00 Key in the desired function code (all function codes are listed below)

Use key > to move one digit to the right

Use key ~ to increment the flashing digit Use key ( to accept the displayed number

The corresponding program will be activated.

To exit the function selection, press ( while Fn 00 is displayed.

To exit from any function program, press )

14.2 List of Function programs Fn 01 EDIT SETPOINTS

The display shows SEtP 1 and then x x x x x the existing value of the setpoint 1 or

low. Use the > and ~ keys to enter the desired value and press P to proceed

or press ) to abort. The display shows SEtP 2 and then x x x x x the existing

value of the setpoint 2 or high. Use the > and ~ keys to enter the desired value

and press P to proceed or press ) to abort. When P is pressed the setpoints are saved in non volatile memory.

Fn 02 DISPLAY REMAINING BATTERY CAPACITY The battery charge will be displayed as a percentage of the remaining capacity. Fn 05 EDIT DATE TIME SERIAL NUMBER

Activated only if setup1.6=1 . The display shows date briefly then 000000 . Enter the date (day,month,year if setup1.7=0 ) or (month, day,year if setup1.7=1 ). The display shows 000000 . Enter the time (hour, min, sec). The display shows n00000 . Enter the serial number of the printout.

Press ) to exit and return to normal weight display. Fn 06 HIGH RESOLUTION

The display shows Hi rES briefly, then the weight is displayed in x10 accuracy for 4sec and then the display reverts to normal accuracy.

Press ~ to display in high resolution for another 4sec.

Press ) to exit and return to normal resolution. Fn 20 - 30 PRINT TYPE SELECT

Equivalent to 2.t in SETUP 2 (i.e. Fn23 corresponds to 2.t=03) The functions are activated only if SETUP 2.8=1


Fn 20 DISABLE PRINTER OUTPUT Fn 21 PRINT FORMAT 1 (Date time nr and weight) Fn 22 CONTINUOUS WEIGHT OUTPUT Fn 23 PRINT FORMAT 3 (single line gross or net) Fn 24 PRINT FORMAT 4 (single line gross or 3line g , t , n) Fn 25 PRINT FORMAT 5 (single line gross or 3line g , t , n emphasized) Fn 26 PRINT FORMAT 6 (single line nr & gross or g , t , net) Fn 27 PRINT FORMAT 7 (single line weight without any designation) Fn 28 PRINT FORMAT 8 (single line nr & indicated weight) Fn 29 PRINT FORMAT 9 (single line gross or 3line g , t , n demand mode) Fn 30 PRINT FORMAT 10 (Two line gross, tare, net label) Fn 31 PRINT FORMAT 11 (One line date, time, gross, tare, net label) Fn 40 PIN CHANGE

Used to change the current Personal Identification Number that enables access to the calibration procedure. (The unit is factory set so that the PIN is not active i.e. 000000).

The display shows Pin 0 briefly then 000000. Key in the old pin and press (. The display shows Pin 1 if the pin was correct else the unit resets.

Key in the new Pin and press ( .

The display shows Pin 2. Key in the same Pin for validation and press (. The new pin is stored and the display shows PASS briefly. If the two entries are not the same, FAIL is displayed briefly and the program

returns with the old pin remaining in memory.

CAUTION Make sure you do not forget the code entered. If the code is lost the unit must be returned to the factory to initialise the Pin and a fee will be charged. Fn 43 COPY LAST PRINTOUT Used to reprint the ticket just printed, in case the paper is damaged. Fn 48 CALIBRATION NR CHECK

Displays the audit trail counter. Press ( to exit. Fn 49 SETUP & CALIBRATION

Dealt with in following pages

Fn 50 PIECE COUNT The display will show the number of pieces on the scale calculated using the average

piece weight already in memory (identical operation with key & ).

Fn 51 SAMPLE & DISPLAY PIECES - Display shows P c s X X. Enter the sample size. - Display shows the number of pieces.

- Press < to display the average piece weight (Press again to return to pieces display)

or press > to tare the scale or press ( to print weight and pieces.

Press & to return to weight mode.


Fn 52 EDIT AVERAGE PIECE WEIGHT & DISPLAY PIECES -Display shows X X X X X . Edit the average piece weight in * 100 accuracy. -Display shows the number of pieces (piece count symbol illuminates).

-Press < to display the average piece weight (press again to return to pieces

display) or press > to tare the scale or press ( to print weight and pieces.

Press & to return to weight mode. Fn 53 SAMPLE & DISPLAY AVERAGE PIECE WEIGHT

Display shows P c s X X . Enter the sample size.

Display shows the average piece weight in * 100 accuracy. Press ) to exit. Fn 80-99 These functions are for use by service personnel only. Fn 80 LOAD CELL MV METER The actual mV/V output of the scale sensors is displayed for 4 sec. Then LoAdCL is

displayed. Press ~ to display mV/V for another 4sec. Press ) to exit. To act as a mV/V meter the unit loads default calibration data. Upon exit the unit

resets so that normal scale calibration constants are loaded. Fn 81 DISPLAY INTERNAL A/D COUNT The analog to digital converter internal count is displayed for 4 sec.

Press ~ to display internal count for another 4sec. Press ) to exit. Fn 82 DISPLAY VERSION – DATE

The software version and date of the software is displayed. Press ) to exit. Fn 86 ROM - RAM TEST A validity check is performed on system ROM and RAM. Err 01 will be displayed if ROM data is corrupted. Err 02 will be displayed if RAM data is corrupted. Fn 90 DISPLAY SEGMENT TEST All digits go through 0-9 display routine in sequence, after which the character set is displayed. Fn 91 KEYBOARD TEST

Display blanks. The scan code of any key pressed will be shown on the display. Fn 94 PRINT BUFFER TEST An ASCII file (30h-7Fh) is output to the printer port with error control. Fn 96 DISPLAY RECEIVED CHARACTERS COM 1 & COM 2 Any character received by COM 1 will be echoed and displayed in ASCII hex on digits

5&6. Any key pressed will be transmitted and displayed on digits 1&2.

Press ) to exit.


15 SCALE PARAMETERS AND CALIBRATION

15.1 Setting the scale parameters - Dialogue PAR It contains calibration parameters relevant to the identity of the scale, i.e. capacity, display digits, display step etc. To enter dialogue PAR: 1. Power up the instrument

2. Press key > and hold pressed for 3 sec. Display shows Fn 00.

Type in number 49 and press ( 3. Display will show A C C E S S briefly if PIN is activated. Key in PIN number and then ( to get

into the calibration menu. 1. Display shows S e t U P

2. Scroll down with key ~ until display shows PAR

3. Press key ( to enter Navigating through the Par Dialogue :

Use key ~ to increment the current digit

Use key > to move to the next digit

Use key ( to accept entry and proceed to next step PARAMETER VALUES DESCRIPTION 1.P

4, 5

No of display digits

2.P

0 - 4 Position of decimal point (Nr of decimal digits after the decimal point) – See paragraph 16.11

3.P 1 – 200

Display resolution (display step) - See paragraph 16.11

4.P

00 - 99 Two first digits of scale capacity (Max2)

5.P

0 - 5 Digital filter (if entry is x, then filter averages 2x samples)

6.P

3, 7, 14, 28

Number of conversions per second-See paragraph 16.11

7.P 1 - 7 No motion samples (if entry is x then samples = 2x

8.1

0 = NO 1 = YES Autozero maintenance (zero tracking)

8.2

0 = NO 1 = YES Autozero on power up

8.3 0 = NO 1 = YES Dual digital filter (Antiflicker)


8.4 0 = NO 1 = YES Clear A/D Converter Error (Error 05)

If enabled A/D converter errors (due to excessive electrical noise) will be cleared automatically, when the cause is no longer present. If not the unit will require operator intervention to acknowledge the error.

8.5 0 = NO 1 = YES Flash low battery indicator

8.6 0 = NO 1 = YES Leading zero blank

8.7 0 = 2 mV/V 1=4 mV/V Load cell Amplifier Gain adjustment (A/D Gain)

8.8 0 = AC 1 = DC

AC/DC Excitation AC: Switching polarity excitation, at a rate defined by the

conversion rate. Switching excitation results in more stable zero.

DC: DC excitation selected for the load cells 8.A 0 = 2% 1 = 10%

Zero range

8.b 0 = interval 1 = range Dual interval or Range

8.c 0 = kg 1 = lb Weight unit selection

0.P 00– 99

Dual interval . The first two digits of the weighing range for which the lower display division will be selected automatically (Max1). If 00 is entered, then dual interval is disabled


QUICK GUIDE FOR SCALE PARAMETRIZATION

Power ON the instrument.

Press key > and hold pressed for 3 sec. Display shows Fn 00.Type in number 49 and press ( KEYSTROKE Display shows S e t U P

~ Par

( 1.p (enter no. of display digits – use ~ to change value)

( 2.p (enter no. of digits after decimal point – use ~ to change value)

( 3.p (enter the display step – use ~ )

( 4.p (enter the 2 first digits of the scale capacity– use ~ and > ) ( 5.p (enter the digital filter – use ~ to change value)

( 6.p (enter the number of conversions per second – use ~ to change value)

( 7.p (enter the number of no motion samples – use ~ to change value)

( 8.1 (enable auto zero maintenance by selecting 1 – use ~ to change)

( 8.2 (enable auto-zero on power up by selecting 1 – use ~ to change)

( 8.3 (enable dual digital filter by selecting 1 – use ~ to change)

( 8.4 (clear A/D converter error by selecting 1 – use ~ to change)

( 8.5 (enable flashing of battery charge indication by selecting 1 – use ~ to change)

( 8.6 (hide leading zero by selecting 1 – use ~ to change)

( 8.7 (define gain in load cell amplifier, 0=2Mv/v – use ~ to change)

( 8.8 (define loadcell excitation, 0=AC – use ~ to change)

( 8.A (define zero range, 0=2% – use ~ to change)

( 8.b (define dual interval mode, 0=interval – use ~ to change)

( 8.c (define weight unit , 0=kg 1= lb – use ~ to change)

( 0.P (enter switching point for dual interval (Max1) - use ~ and >) ( Par

~ CAL

( Continue with calibration procedure


15.2 Calibrating the scale - Dialogue CALIBRATION Calibration of the LD5208 indicator is accomplished with two methods: Conventional calibration with standard weights Electronic calibration with m V/V values from load cell data sheets (recommended for high

capacity scales whereby the use of standard test weights is inconvenient) Calibration procedure is selected via the Dialogue CAL Prior to calibration the scale must have been parameterized via the PAR dialogue. After the calibration, calibration data must be stored in the indicators memory by means of dialogue STORE After completion of the procedure, the scale must be sealed against unauthorized use by means of the Calibration Lock facility. Refer to paragraph 17.7.1 for details. Scale calibration, either standard or electronic, is effected in 2 stages: ZERO calibration , or the so called dead-load adjustment, whereby we take a measurement

when the scale is empty SPAN calibration, whereby we take a measurement of a known weight on the scale

15.2.1 Dialogue CAL / S-CAL (calibration with standard weights) Conventional calibration is done by means of standard calibration weights . Preparation To calibrate the unit follow the instructions below : 1. Power up the instrument

2. Press key > and hold pressed for 3 sec. Display shows Fn 00.Type in number 49 and

press (

3. Display will show A C C E S S briefly if PIN is activated. Key in PIN number and then ( to get into the calibration menu.

4. Display shows S e t U P

5. Use key ~ to scroll down to dialogue C A L 6. Allow 10 minutes for the weighing scale to warm up 7. Make sure you have accurate calibration weights available 8. Calibration weight should be at least 30% of the total scale capacity


Zero Calibration 1. Display shows C A L . Press ( to enter the dialogue.

2. Display shows S – C A L. Press ( to enter the dialogue

3. Display shows Z E R O. Press ( to enter the dialogue 4. Display shows E S c l. 5. Unload the scale and wait for 10 seconds for the display to stabilize.

6. Press ( . The display counts down for about 10 sec (averages 50 samples). Then it shows 0. 7. Repeat the procedure if the zero point is not accurate

8. Press ). Display shows Z E R O

9. Press ). Display shows S- C A L

10. Press ). Display shows C A L Span Calibration 1. Display shows C A L . Press ( to enter the dialogue.

2. Display shows S – C A L. Press ( to enter the dialogue

3. Display shows Z E R O. Use key ~ to scroll down to dialogue S P A N.

4. Press (. Display shows the maximum capacity of the scale. Type in the numeric value of the

calibration weight you are using. Press key ~ to increment the current digit and key > to move to the next digit

5. Press (. The display shows A d d L d. Put the calibration weight on the scale

6. Press (. The display counts down for about 10 sec (averages 50 samples). Then it shows the calibration weight.

7. Repeat the SPAN procedure, if the Span point has not been measured accurately.

8. Press ). Display shows S P A N

9. Press ). Display shows S- C A L

10. Press ). Display shows C A L


15.2.2 Saving calibration data – Dialogue STORE This dialogue serves to permanently store the calibration data in the unit’s non-volatile memory, so that it does not get lost when the indicator powers down. Up to 100000 storage cycles allowed.

1. Enter dialogue SETUP and scroll with key ~ up to dialogue STORE

2. Press key ( to save the calibration data 3. The indicator exits the set up dialogues and reboots


QUICK CALIBRATION GUIDE

Press key > and hold pressed for 3 sec. Display shows Fn 00.Type in number 49 and press ( KEYSTROKE Display shows

S e t U P

~ Par

~ CAL

( S-CAL

( Zero

( E Scl (empty scale)

( counts down to zero

) Zero

~ Span

( Type in calibration weight

(use ~ to change value, use > to move one digit to the right)

( Add ld (place calibration weight on the platform)

( counts down and shows the calibration weight

) SPAN

) S-CAL

) CAL

~ STORE (remove calibration weight)

( Calibration data is stored and indicator reboots


15.2.3 Dialogue CAL / E-CAL (electronic calibration) Electronic calibration is practically the entry of two values via the indicator’s keyboard. These values are : The m V/V value of the load cell, corresponding to the zero point (Load cell zero balance +

scale dead load) The m V/V value of the load cell, corresponding to a calibration weight equal to the max

capacity of the scale Both these values are calculated from the load cell data sheets Calculation of calibration values – Example Assume a scale of Max= 30/60kg , e=0.010/0.020kg , with 4 loadcells of rated capacity 50kg -2mV/V each. The dead load is 1.940kg. The load cell data, as indicated in the manufacturer’s data sheets are shown below: L/C1 : 1.9793 mV/V output at 50kg zero balance : 0.0257 mV/V. L/C2 : 1.9392 mV/V output at 50kg zero balance : 0.0276 mV/V. L/C3 : 1.9577 mV/V output at 50kg zero balance : 0.0553 mV/V. L/C4 : 1.9640 mV/V output at 50kg zero balance : -0.0022 mV/V. Calculation of the load cell zero balance average

L/C ZERO BALANCE average = [0.0257 + 0.0276 + 0.0553 + (- 0.0022)] / 4 = 0.0266 mV/V. Calculation of the scale dead load

SCALE DEADLOAD : 1.9600 mV/V . 1.940 kg = 0.0190 mV/V. (4x50kg)

Calculation of the overall dead-load

OVERALL DEADLOAD= L/C ZERO BALANCE+SCALE DEADLOAD=0.0266+0.0190=0.0456 mV/V. This is the ZERO calibration value Calculation of load cell rated output average

L/C RATED OUTPUT AVERAGE = (1.9793 + 1.9392 + 1.9577 +1.9640) / 4 = 1.9600 mV/V Calculation of the combined output of the load cells, when the scale is at maximum

capacity L/C OUTPUT AT SCALE MAX = 1.9600*60 / 4*50 = 0.5880 mV/V This is the SPAN calibration value


Zero calibration Enter the SETUP dialogues and use key ~ to scroll to dialogue CAL

1. Press ( to enter the dialogue

2. Display shows S – C A L. Use key ~ to scroll to dialogue E – C A L

3. Press ( to enter the dialogue . Displays shows Z E R O

4. Press (

5. Enter the overall m V/V value corresponding to dead-load, as calculated above. Press key ~ to increment the current digit and key > to move to the next digit

6. Press (. The display shows the corresponding weight

7. Press ). Display shows Z E R O

8. Press ). Display shows E- C A L

9. Press ). Display shows C A L

Span calibration Enter the SETUP dialogues and use key ~ to scroll to dialogue CAL

1. Press ( to enter the dialogue

2. Display shows S – C A L. Use key ~ to scroll to dialogue E – C A L

3. Press ( to enter the dialogue . Displays shows Z E R O

4. Use key < to scroll to dialogue S P A N. Press ( 5. Enter the overall m V/V value corresponding to the Max capacity of the scale, as calculated

above. Press key ~ to increment the current digit and key > to move to the next digit

6. Press (. The display shows the corresponding weight

7. Press ). Display shows S P A N

8. Press ). Display shows E- C A L

9. Press ). Display shows C A L Saving calibration After completion of the procedure, the calibration values must be stored in the indicators non-volatile memory, so that it is not lost when the indicator powers down.

1. Enter the SET UP dialogues and scroll with key ~ up to dialogue STORE

2. Press key ( to save the calibration data 3. The indicator exits the set up dialogues and reboots


16 CONFIGURING THE INDICATOR

16.1 Dialogue SET UP This dialogue contains parameters that affect the operational details of the scale, e.g. totalizers, the communication mode of the serial output, and other scale functions. To enter dialogue SET UP: 1. Power up the instrument

2. Press key > and hold pressed for 3 sec. Display shows Fn 00.Type in number 49 and

press ( 3. Display will show A C C E S S briefly if PIN is activated. Key in PIN number and then ( to

get into the calibration menu. 4. Display shows S e t U P

5. Press key ( to enter 6. Display shows SET UP1 Navigating through the SETUP Dialogue :

Use key < or ~ to move between the subdialogues (SETUP1, SETUP2, … , SETUP6)

Use key ( to enter the displayed subdialogue

Use key ) to exit and return to indication SetTUP

While in a SETUP Dialogue :

Use key < or ~ to move between the selections

Use key ( to enter the displayed value

Use key ) to exit and return to indication SetTUP To enter a numeric value :

Use key ~ to increment the flashing digit

Use key > to move to the next digit to the right

Use key ( to accept entry and proceed to next step


16.2 Programming the operational parameters - Dialogue SETUP/SETUP1

1. Access dialogue SETUP

2. Press key ( to enter

3. Use key ~ to scroll until display shows SETPUP1


5. Press key ~ to change value

6. Press key ( to proceed with next item PARAMETER VALUES DESCRIPTION 1.1 Totalizing memory 0 = No

1 = Yes Enables the totalizing of printed weights.

1.2 Over-in-under

0 = No 1 = Yes

1.3 Setpoint at stable

0 = No 1 = Yes

The setpoints operate always. The setpoints are compared when the scale is stable.

1.4 Piece Count 0 = No 1 = Yes

Enables the piece count facility.

1.5 Reserved 1.6 Date time clock 0 = No

1 = Yes Enables the software date time clock.

1.7 Date format 0 = D,M,Y 1 = M,D,Y

Day ,Month, Year Month, Day ,Year

1.8 Function programs 0 = No 1 = Yes

Enables function operation with key T

1.t Auto power off 00-99 minutes 00=disabled.

Time for the unit to switch off if the scale is at zero.

1.E Piece Count number of samples

(5-99)


16.3 Configuring serial port 1 (RS232) - Dialogue SETUP / SETUP 2 1. Access dialogue S e t U P


3. Use key ~ to until display shows SETUP2


5. Press key ~ to change value

6. Press key ( to proceed with next item PARAMETER VALUES DESCRIPTION 2.t Print Type 00 Port disabled

01 Ticket 02 Weight output

Date-time, Indicated weight Continuous transmission of weight

03 Single line 04 Ticket

Gross or Net. Three line Gross, Tare, Net or single line Gross.

05 Ticket Gross, Tare, Net, Quadruple size characters. 06 Single line

07 Weight Number and Gross, Tare, Net. Displayed weight

08 Nr and Weight Serial number, indicated weight single line 09 Demand Print demand by transmitting scale Address

code 10 Label Gross, Tare, Net. 11 Automatic printout

Single line with Date-Time, Indicated weight (Related to parameter 2.4 below / notes)

2.C Demand character 65 - 90 Demand character for print on demand mode 2.L Page length Ticket length in linefeeds. 2.r Paper reverse Number of reverse linefeeds before printout. 2.A Left margin Number of spaces from left margin 2.F Page header Number of line feeds before printout 2.E Line termination: 0=LF, 1= CRLF, 2= LFCR 2.1 Printer model 0 = FANFOLD

1 = SLIP TM-290 Selection of printer type

2.2 Reserved 2.3 Print below min.

capacity 0 = NO 1 = YES

2.4 Automatic printout enable

0 = NO 1 = YES

2.5 Reserved 2.6 Wait unload 0 = NO , 1 = YES 2.7 Printer error

control 0 = NO 1 = YES

2.8 Operator print type change (Fn 20-30)

0 = NO 1 = YES

2.b Baudrate 2400,9600,19200,38400 2.d Data bits port 1 17=7 data bits/even parity

08= 8 data bits/no parity


✎ Baud rate is default to 2400

✎ Set printer error control 2.7=0 for communication with a PC.

✎ For the automatic printout : When the scale is loaded above the min. weight (20 scale divis ons) and stabilizes at the no-motion sta e, the above weigh ticket is printed automatically. The scale must be loaded again (weight below 20 scale divis ons), before a new automatic printout takes place.

i t

i

f

✎ For serial port communication modes, see also paragraph 16.4

16.4 Communication modes o serial port – RS232 The port is used to connect to serial printers or personal computers. Data output and handshake requirements are defined by SETUP 2. TYPE Asynchronous serial ASCII, RS232C standard, full duplex. PROTOCOL 2400-38400 baud, 1 start, 7 data/even parity or 8 data/no parity, 1 stop bit. HANDSHAKE DTR BUSY per character for fanfold printers or REQUEST

PAPER END STATUS for EPSON TM-295 slip printer. CONNECTION DB9 male on rear panel. (J1)

Tx = Pin 3 Rx/DTR = Pin 2 GND = Pin 5 SHIELD = Metal case of D-Type connector Cable: 3 conductor shielded max distance 15m.

DATA The data output of serial port 1 is selectable via SETUP 2, and maybe one

of printer output, continuous weight output, or demand weight output. SET UP requirement 2.t = 01, 03, 04, 05, 06, 07, 08, 10, 11, Printer output

2.t = 02 Continuous weight output 2.t = 09 Print on demand

16.4.1 Printer output (SETUP 2, 2.t=01, 03, 04, 05, 06, 07, 08, 10, ) The data to be printed, printer type and paper dimensions is defined in SETUP 2


16.4.2 Continuous weight output (SETUP 2, 2.t=02) The indicated weight and status information is transmitted continuously. No handshake is required.

DATA BLOCK COMPOSITION

STATUS, POLARITY, WEIGHT, SYNC (P+123.45CR) BYTE

NAME

DESCRIPTION

1 2

3-8 9

WEIGHT STATUS

POLARITY WEIGHT DIGITS SYNC

Bit0 0=NORMAL 1=NO WEIGHT DISPLAY Bit1 0=GROSS 1=NET Bit2 0= 1=AUTO ZERO Bit3 0=WITHIN RANGE 1=OUT OF RANGE Bit4 0=NO STANDSTILL 1=STANDSTILL Bit5 0=NORMAL 1=UNDER MIN. WEIGHING RANGE Bit6 ALWAYS 1 TO OBTAIN PRINTABLE CHARACTERS Bit7 ZERO OR PARITY "+" OR "-" 6 DIGITS DEPENDING ON LD5208 SETUP INCLUDING DECIMAL POINT IF ANY CR (0d hex) FOR SYNCHRONISATION

16.4.3 Print on demand mode (SETUP 2, 2.t=09) The weight data is transmitted every time a character is received from the connected peripheral. The demand character is programmed in SETUP 2, 2.C., e.g. “1” 49d or 31 hex.

16.5 Printing weigh tickets The indicators LD5208 provide a series of : Standard print formats and two Custom print formats, which can be programmed by the user to suit specific requirements

The selection of the desired print format is accomplished via the function menu, functions 21-30, while the printout takes place via the PRINT button on the indicator front panel.

✎ Printer port is disabled by accessing Function 20

✎ To get a copy of the last weigh ticket, access Function 43. Printout takes place provided no other action has been taken after the last print

16.5.1 Standard print formats The following print formats are available selectable via Functions 21-30 (provided parameter 2.8=1) Alternatively, print formats can be selected via SETUP2, parameters 2.t = 01, 03 – 08, 10, 11)

LIST OF PRINT FORMATS


Fn 21 PRINT FORMAT 1 (SETUP 2.t = 01) Date - time, indicated weight (whatever shown on the display, gross or net)

29-09-99 09:15 N:0010 GROSS : <123.400kg>

or

29-09-99 09:15 N:0010 GROSS : <031.340kg> TARE : <006.840kg> NET : <025.500g>

Fn 23 PRINT FORMAT 3 (SETUP 2.t = 03) Printout of weight in one line.

GROSS : <05210kg>

or

NET : <00950kg>

Fn 24 PRINT FORMAT 4 (SETUP 2.t = 04) Printout of gross weight when indicator in gross mode or gross, tare, net weights when in net mode

GROSS : <06170kg>

or

GROSS : 07940kg TARE : 06170kg

NET : <01770KG>

Fn 25 PRINT FORMAT 5 (SETUP 2.t = 05) Label of gross, tare, net (Quadruple size)

GROSS : <07940kg>

or

GROSS : 07940kg TARE : 06170kg

NET : <01770KG> Fn 26 PRINT FORMAT 6 (SETUP 2.t = 06) Memory location, gross weight when indicator in gross mode or Memory, gross, tare, net when in net mode

1234 07940kgG or

1234 09260kgG 07940kgT 01320kgN

Fn 27 PRINT FORMAT 7 (SETUP 2.t = 07) Printout of the weight currently shown on the display without any other characters.

12345 Fn 28 PRINT FORMAT 8 (SETUP 2.t = 08) Memory location number and indicated weight.

12345 079.65KG Fn 30 PRINT FORMAT 10 (SETUP 2.t = 10)


Ticket, Gross, Tare, Net. GROSS TARE NET

12.345 02.345 10.000 PRINT FORMAT 11 (SETUP 2.t = 11 and SETUP 2.4 = 1) Automatically printed weigh ticket: Date–Time-Gross weight

29-09-99 09:15 12.340KG

Additional Requirement - Parameter 2.4 = 1 When the scale is loaded above the min weight (20 scale divisions) and stabilizes at the no-motion state, the above ticket is printed automatically. The scale must be unloaded again (weight below 20 scale divisions), before a new automatic printout takes place.

16.6 Programming the animal weighing parameters – Dialogue The animal weighing function is used when it is difficult to stabilize the item to be weighed. The average of the number of samples programmed in setup 4.A is calculated and displayed or printed. PARAMETER VALUES DESCRIPTION 4.A Animal weigh samples 00-99

00 = Disabled Number of samples to average in order to produce a stable weight.

16.7 Programming the PIN (Personal identification number) This facility is used in order for the owner of the scale to change the current Personal Identification Number that enables access to the calibration procedure. The unit is factory set so that the PIN is not active i.e. 000000) In order to program the PIN: 1. Enter Function 40 2. Display shows: P i n 0 briefly, then 0 0 0 0 0 0

3. Key in the existing PIN number and press ( 4. Display shows: P i n 1, in Pin number was correct, else the unit resets.

5. Key in the new desired PIN and press ( 6. Display shows: P i n 2

7. Key in the same Pin for validation and press ( 8. If the two entries are not the same, F A I L is displayed briefly and the program returns with

the old pin remaining in memory

CAUTION Make sure you do not forget the code entered. If the code is lost the unit must be returned to the factory to initialize the Pin and a fee will be charged.


17 CALIBRATION SECURITY To prevent unauthorised calibration 2 facilities are provided: CALIBRATION LOCK jumper AUDIT TRAIL COUNTER

17.1 Calibration lock jumper (CAL LOCK) This is a jumper JP1 placed inside the unit on the main board (PCB 803) next to the analogue circuit. With this jumper inserted the user may only change the SETUP. Parameter and Calibration menus can not be accessed. LD5208 units are shipped with CAL LOCK jumper not inserted. For table top enclosures the CAL LOCK facility appears also on pins 7, 8 of load cell connector on the rear panel. If the pins are shorted the calibration is locked. The position of the CAL LOCK jumper maybe checked by performing Fn48. If the CAL LOCK is inserted the display will show S E A L E d briefly. Then the display shows C A . X X Y Y where : XX = Calibration data check characters

YY = Setup data check characters

If the CAL LOCK jumper is not inserted the display will show directly C A . X X Y Y

Press ) to exit or ( to proceed with the indication of the Audit Trail Counter

17.2 Audit Trail Counter (A.T.CNT) This is a counter which is incremented every time a weight parameter or Calibration are changed, regardless if the change was saved in EEPROM or not. The A.T.CNT (Audit Trail Counter) is provided for Weights & Measures Authorities to check if any calibration attempt has been made since the last inspection. The Audit Trail Counter may also be viewed by performing Fn48. If the CAL LOCK is inserted the display will show S E A L E d briefly. Then the display shows C A . X X Y Y

Press ( to continue. The 6 digit Audit Trail Counter is displayed.

Press ) to exit.


17.3 Securing and sealing Sealing of the indicator must follow the calibration and store procedures and comprises : Preventing access to the CAL LOCK jumper Prevent unauthorized tampering with the load cell connector

The parts of the enclosure can be sealed be means of a non-removable self-adhesive label over one of the screws that keep the cabinet closed. The load cell connector can be protected by means of a wire and lead seal Or a hard non-removable sticker

Figure 12.


18 OTHER FACILITIES

18.1 Using the indicator as remote display An LD5208 indicator can be used in a ‘’remote display mode’’ as a slave to LD5204.

This connection is performed via the RS232.

That function is accomplished by setting : SET UP 2 : 2.t = 14

18.2 High resolution mode This mode serves the Weights and Measures Authorities during the scale verification procedure. This mode is accessed via Function 06 . While in high resolution mode, the serial ports are disabled. Port operation will resume automatically when the high resolution mode is ended. The display shows Hi rES briefly, then the weight is displayed in x10 accuracy for 4sec and then the display reverts to normal accuracy.

Press ~ to display in high resolution for another 4sec.

Press ) to exit and return to normal resolution.

18.3 Locking the front panel keys This facility enables the locking of one or more keys of the front panel, for protection against accidental or deliberate actions. In order to lock the keys:

1. Enter dialogue SETUP and press (

2. Display shows S e t U P 1. Scroll with key ~ down to SETUP 6

3. Press enter and use key ( to scroll up to the key you wish to lock

4. Set the corresponding parameter to 1 (using key ~) PARAMETER VALUES 6.1 ZERO key 0 = Unlock 1 = Lock 6.2 TARE key 0 = Unlock 1 = Lock 6.3 PRESET TARE key 0 = Unlock 1 = Lock 6.4 PRINT key 0 = Unlock 1 = Lock 6.5 TOTAL key 0 = Unlock 1 = Lock 6.6 PCS key 0 = Unlock 1 = Lock To unlock the keys Access the dialogue SETUP6 as described above and set the corresponding parameter to 0 .

✎ Every time the user presses a key that has been locked, the display shows l o c E d briefly.


18.4 Installation of default parameters This facility is available in dialogue INIT. By accessing this dialogue you can load default calibration data for checking purposes. After initialization the weight display will act as a mV/V meter of the load cell output.

1. Enter dialogue SETUP and scroll with key ~ up to dialogue INIT

2. Press key ( to load the default parameters. The indicator shows A d CAL and returns to the weigh mode.

3. Or Press ) to exit the init mode and restart the instrument.

CAUTION Be aware that the default parameters and calibration constants will remain in memory until power down. If a subsequent STORE operation is performed previous calibration data will be lost. The default parameters are as follows : Par 1.P = 5 8.4 = 0

2.P = 4 8.5 = 0 3.P = 1 8.6 = 1 4.P = 40 8.7 = 0 5.P = 3 8.8 = 0 6.P = 14 8.9 = 0 7.P = 3 8.A = 0 8.1 = 1 8.b = 0 8.2 = 0 0.P = 00 8.3 = 1

DEADLOAD=0 mV/V~0,0000 on weight display SPAN=2 mV/V~2,0000 on weight display

SETUP 1 SETUP 2 SETUP 4 SETUP 6 1.1 = 0 2.t = 06 4.A = 00 6.1 = 0 2.C = 65 1.2 = 0 2.L = 01 6.2 = 0 1.3 = 0 2.r = 00 6.3 = 0 1.4 = 0 2.A = 00 6.4 = 0 1.5 = 0 2.F = 00 6.5 = 0 1.6 = 0 2.E = 1 6.6 = 0 1.7 = 0 2.1 = 0 6.7 = 0 1.8 = 1 2.2 = 0 6.8 = 0 1.t = 00 2.3 = 0 1.E = 05 2.4 = 0 2.5 = 0

2.6 = 0 2.7 = 1 2.8 = 1 2.b = 24 2.d = 08


18.5 Updating the indicator with new software versions (option) This software version, utilising the latest technology in Flash memory, offers the capability of reprogramming the microprocessor In System. This means that new software versions or changes to the current version can be easily downloaded to the device without the need of opening it or removing it from its work area. Also customers need not buy an entirely new device but just the new software for it Each device comes with an embedded Leon Engineering bootloader. At any point in time and in order to program the device, the boot loader must be accessed. To download the latest LD software to the device, the Master PC used must also run a special program provided by Leon Engineering (LD5200 Flash programmer). 18.5.1 Preparing the PC flash programmer software 1. Install Flash Programmer files to your PC

Use a DB-9 normal PC to PC cable to connect the RS232 printer port of LD5208 to the RS232 of PC (COM1 or COM2)

2. Run the Flash Programmer software (.EXE file) The Flash Programmer window appears on your PC screen

3. COM Port : Make sure that the COM port mentioned on the Windows screen is the same PC COM port, to which the indicator is connected. If not, select the correct port using the selections available (COM1, COM2, COM3, COM4)

4. File : Click on the File field of the Flash Programmer window, select directory path (where the software of the LD5200 is stored) and double click the software version (.FLX file) you wish to download to the instrument

5. Press the button ‘’Program’’ on the PC screen 18.5.2 Updating procedure 1. Enter the dialogue SetUP in the indicator and press P

2. Use key ~ to scroll until B o o t is displayed.

3. Press P . The device enters in its programming mode and will expect the new software from the PC. When the download is complete the device will automatically reset and it will run the updated software version.

4. If ) was pressed the device will exit to the previous menu.

CAUTION MINIMUM PC REQUIREMENTS: PENTIUM III, 600 MHz, clock speed : 128 Mb RAM Contact manufacturer for the downloading Windows application and the downloading

instructions Always Program with the Serial files that are provided by Leon Engineering In case something goes wrong with the downloading procedure, the indicator must be sent

back to the manufacturer to be programmed again in house


19 TROUBLE SHOOTING

19.1 Maintenance The unit does not require any routine maintenance. It may be necessary to perform periodic checks of the calibration of the scale due to mechanical reasons. The frequency of the calibration checks depends on the application conditions and on the required measuring accuracy.

19.2 Handling of malfunctions In case of malfunction the user should contact the supplier, as the unit may probably need service from an experienced technician.

LEON ENGINEERING S.A.

+ 30 210 77 70 936 or

+ 30 210 55 52 048 The only cases in which the user is allowed to take some actions are the following : It may happen that, in exceptional conditions, the unit locks on a wrong memory location and

it is not possible to restart because the keyboard is not operative. To restart is necessary to switch the power OFF then ON again.

In case of a problem with the load cell connection:

Check input and output resistance, and resistance between any terminal and shield. Check load cell connection and cable.

In case of problems with the power supply:

Check output of 9V DC power adaptor. Check voltage of internal 6V battery. (Acceptable levels 5.75V to 6.45V)

In case of an unexpected event, caused by software or hardware reasons, the operator is

prompted with the message E r r x x , where xx is the Error code. Program is halted.

Press ) momentarily to acknowledge the error and proceed as indicated in the error operator response. Errors may occur during setup, programming, power-up and during operation.


LIST OF ERROR CODES ERROR DISPLAY POSSIBLE CAUSE ACTION TO BE TAKEN

Err 01

SYSTEM ROM : Faulty EPROM.

Contact manufacturer.

Err 02

DATA RAM : Faulty CMOS RAM.


Err 04

CALIBRATION DATA : Faulty EEPROM.


Err 05

SCALE or A/D CONVERTER.

Check scale, cable, connectors, contact manufacturer.

Err 06

LOW INPUT VOLTAGE .

Check power supplied to the instrument.

Err 15

System has been initialised due to power failure or soft reset.

Zero scale.

Err 16

System DATE – TIME is wrong.

Enter new date – time.

Err 20

PRINTER IS NOT ON-LINE. Either not connected or out of paper or failed.

Check printer cables. Press ( to retry

Or ) to abort. Err 26

No paper for EPSON TM295 printer.

Supply with paper.

Err 50

Small sample count.

Retry.

Err 51

Small sample weight.

Retry.

Err 67

Corrupted totaliser.

Clear totalising memory

Err 69

TOTALISER OVERFLOW. Because totalisers have not been cleared for long time.

Print / clear totalisers. Overflow is not critical. But remember that 1 total capacity must be added to the indication, each time an overflow occurs.

✎ To exit from error display press ) .



20 Publication Complains Report If you find any problem – difficulty with our documentation, please complete and fax this form to us:

+30 210 77 58 925

Publication Name: Publication Date: PROBLEM(S) TYPE: PROBLEM(S) DESCRIPTION: INTERNAL USE ONLY

Technical Accuracy

Text

Illustration

Completeness Please describe the information is missing.

Procedure/step Example Explanation Illustration Definition Guideline Feature Other (please explain below)

Info is in Manual

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(changing procedure)

Clarity Please specify, what is not clear?

Sequence What do you see that is not in the right order?

Other Comments

Your Name: Company Name: Phone Number: Fax this completed form to Leon Engineering S.A. at +30 2107758925 Leon Engineering SA Document.

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