Instruction manual 870 Securiterre - Honeywell · Instruction manual 870 ... (also for small ships...

Instruction manual870 Securiterre

Instruction manual 870 Securiterre Page 1

Instruction manual 870 Securiterre

May 2009 Part no. 4416.568 Revision 4

Enraf B.V. P.O. Box 812 2600 AV Delft Netherlands Tel. : +31 15 2701100 Fax : +31 15 2701111 E-mail : [email protected] Website : http://www.honeywellenraf.com


Copyright 1993 - 2006 Enraf B.V. All rights reserved.

Reproduction in any form without the prior consent of Enraf BV is not allowed. This manual is for information only. The contents, descriptions and specifications are subject to change without notice. Enraf BV accepts no responsibility for any errors that may appear in this manual.

The warranty terms and conditions applicable in the country of purchase in respect to Enraf BV products are available from your supplier. Please retain them with your proof of purchase.


Preface

Preface

This manual is intended for technicians involved in the installation, commissioning and service of the Enraf Series 870 Securiterre

A description preceding the technical procedures gives the technical information necessary to understand the operation of the Securiterre. It is strongly recommended to read this description prior to performing any of the procedures.

The options applicable for your installation are specified on the identification label of your Securiterre

Safety and prevention of damage

Safe execution of the procedures in this manual requires technical experience in handling tools, and knowledge of safety regulations for electrical installations in hazardous environments.

"Warnings", "Cautions", and "Notes" have been used throughout this manual to bring special matters to the immediate attention of the reader.

• A Warning concerns danger to the safety of the technician or user; • A Caution draws attention to an action which may damage the equipment; • A Note points out a statement deserving more emphasis than the general text, but not requiring a

"Warning" or a "Caution".

The sequence of steps in a procedure may also be important from the point of view of personal safety and prevention of damage; it is therefore advised not to change the sequence of procedural steps or alter a procedure.

Legal aspects

The information in this manual is copyright property of Enraf BV, Netherlands. Enraf BV disclaims any responsibility for personal injury or damage to equipment caused by:

• Deviation from any of the prescribed procedures; • Execution of activities that are not prescribed; • Negligence of the general safety precautions for handling tools, use of electricity and microwave

radiation.


Preface

EC declaration of conformity

This instrument is in conformity with the protection requirements of EC Council Directive 89/336/EEC. The CE conformity marking fulfills the provisions of:

EN 50081-2 Generic Emission Standard EN 50082-2 Generic Immunity Standard

When installed, maintained and applied according to the requirements as specified in this manual.

For delivery within EC only.

Safety Notice

The securistore cable dispenser contains a hermetically closed mercury wetted contact. If the Securiterre is dismantled, this contact should be disposed properly through recycling or hazardous waste recovery programs which area in accordance with prevailing community regulations that may apply to the disposal of mercury.

Additional information

Please do not hesitate to contact Enraf or its representative if you require any additional information.


Table of contents

Table of contents

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.1 Securiterre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.2 Securistore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.3 Principle of operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.3.1 Truck version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1.3.2 Train version (also for small ships without cathodic protection) . . . . . . . . . . . . . . . . . . . . . 6 1.3.3 Drum version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.4 Grounding clamp and grounding cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.1 Safety aspects of the Securiterre . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.2 Personal safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3 Safety conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 Storage and unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.1 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 3.2 Unpacking and inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.1 Mechanical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4.2 Electrical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

5 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

6 Adjustment and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

6.1 Adjustment procedure Truck version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 6.2 Verification of the adjustment procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 6.3 Adjustment procedure for other versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Appendix A Dimensional drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Appendix B Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Appendix C Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24


Introduction

1 Introduction

1.1 Securiterre

The Model 870 Securiterre is a grounding system for loading gantries that offers improved safety during the transfer of flammable liquids. It ensures that reliable grounding has been achieved before any product transfer can take place. It is an indispensable item for every loading facility of flammable non-conducting liquids and powders of pellets.

Electrostatic charge can be generated and accumulated during pumping, filtering and loading of tank compartments with non-conducting liquids such as petroleum products and chemicals. As a result, the tank obtains a different potential than the loading equipment. This can lead to sparking when for example the loading arm is brought in, igniting the product vapors.

1.2 Securistore

The Enraf Securistore is a reliable cable dispenser, provided with a low-capacitance neoprene cable with a length of 15 m and an earth clamp with break-release. The break-release as such prevents cable and Securistore raptures in case of driver departure with still clamped on clamps. The dispenser is fitted with a return spring to rewind the cable automatically after use.

1.3 Principle of operation

1.3.1 Truck version

The measuring circuit consists of an oscillator that detects the presence of a tank compartment insulated by the truck tires by means of an impedance measurement (tank capacitance + tire resistance). At this time the circuit is grounded via a large resistance, to reduce the hazard of sparking when the grounding clamp is connected to the tank compartment.

If the impedance characteristic of a tank truck is detected, the oscillator starts. After a time delay, it triggers a relay circuit that operates the signal lamps and an extra contact for externally mounted equipment. Another relay connects the measuring loop and hence the tank compartment directly to ground so that no potential exists between the tank (manhole) and say the loading arm. When the oscillator stops, as will be the case when the grounding clamp is removed from the tank compartment for example, the relays will be de-energized. To reduce the effects of cable capacitance, the Securiterre input and grounding clamp are provided with impedance transformers.

If, in the case of the tank truck version of Securiterre, the impedance cannot be measured because of excessive humidity or the presence of brine, a magnetically operated bypass can be activated to establish the initial grounding.

1.3.2 Train version (also for small ships without cathodic protection)

After connection of the grounding clamp to the object (train wagon or ship), the Securiterre measures the resistance of the object to ground (max 1 KΩ). After verification of the maximum resistance to ground, a relay connects the measuring circuit directly to ground. Another relay switches the signal lamp to green and switches an extra contact to externally mounted equipment.


Introduction

1.3.3 Drum version

The drum version uses a double isolated ground clamp. The Securiterre measures the resistance over the poles of the clamp (max. 3 Ω). After verification of the maximum resistance to ground, a relay connects the measuring circuit direct to ground. Another relay switches the signal lamp to green and switches an extra contact to externally mounted equipment.

1.4 Grounding clamp and grounding cable

The Securistore requires a special flexible blue grounding cable delivered by Enraf. The cable should be connected to the instrument via the blue cable gland. Due to the attenuation of the cable to the instrument, the distance between the Securiterre, Securistore and the tank truck to be earthed is limited to 15 m standard. A longer or shorter cable length is available on request.


Safety

2 Safety

2.1 Safety aspects of the Securiterre

The Securiterre is entirely safe for mounting in a hazardous area. It is divided in two parts:

• the explosion proof terminal box • the explosion proof instrument box

The Securiterre complies with European Standards EN 50.014, EN 50.018, and EN 50.020 and is ATEX certified as EEx d [ia] ia IIC T6 acc. to LCIE France.

Caution The Securiterre is an explosion proof instrument with intrinsically safe output/input circuits.

Modifications to the instrument may only be carried out by trained personnel which is authorized by Enraf. Failure to adhere to this will invalidate the approval certificates.

Caution The Securiterre may be installed in hazardous areas. The classification of the hazardous area may

vary with the optional functions of the Securiterre and per approval certificate. Before starting installation, check whether the actual area of installation complies with the area

classification on the applicable approval certificate for your type of Securiterre.

2.2 Personal safety

The technician must have basic technical skills to be able to safely install the equipment. When the Securiterre is installed in a hazardous area, the technician must work in accordance with the (local) requirements for electrical equipment in hazardous areas.

2.3 Safety conventions

"Warnings", "Cautions", and "Notes" have been used throughout this manual to bring special matters to the immediate attention of the reader.

• A Warning concerns danger to the safety of the technician or user; • A Caution draws attention to an action which may damage the equipment; • A Note points out a statement deserving more emphasis than the general text, but not requiring a

"Warning" or a "Caution".


Unpacking

3 Storage and unpacking

3.1 Storage

During storage, the Securiterre should preferably be kept in its original packing and stored indoors. When the Securiterre has already been installed on site and will be out of operation for a prolonged period, it is recommended to keep the mains on. When this is not possible, put some moisture-absorbing material such as silica gel in the electronic compartment of the Securiterre.

3.2 Unpacking and inspection

Inspect the package on arrival and immediately notify the transporter or your representative if there is any damage. Don't throw away the packing.

SECURITERRE

It will be of use when further transport on site is needed or when the instrument is returned for service or warranty.

Inventory checklist:

• 870 Securiterre • Securistore (optional) • the instruction manual you are reading now

12V

12V

ENRAF

TYPE UA 1870 N° de fab.

L.C.I.E. 87.B6.029. EEx d [ia] ia II C T6

R3

The identification code specifies the type of instrument and must agree with your order. When the type on the label of your Securiterre does not conform with the identification code, consult your representative or Enraf BV

Figure 3.1 Label on Securiterre


Installation

4 Installation

The Securiterre is designed to be installed in a hazardous area and to operate under extreme ambient temperatures. It does not require any special protection.

4.1 Mechanical installation

The Securiterre should be mounted vertically to a loading rack by means of 4 bolts. The mounting position should be chosen near the truck in order to ensure a good visibility of the pilot LEDs.

Refer to Appendix A for dimensional drawings

Caution The Securiterre may be installed in hazardous areas. The classification of the hazardous area may

vary with the optional functions of the Securiterre and per approval certificate. Before starting installation, check whether the actual area of installation complies with the area

classification on the applicable approval certificate for your type of Securiterre.

Caution Before opening the covers, do not forget to remove the blocking device (Refer to Appendix A).

Keeps threads of covers and Securiterre free from dirt.

Grease them lightly with an acid free grease after the Securiterre has been opened.

When closing, never tighten the covers before the threads are properly engaged. The covers should be turned counterclockwise until the thread “clicks” into place,

then turn clockwise until the covers are fully closed.

After closing the covers, do not forget to place the blocking device.

4.2 Electrical installation

Warning Make sure that all power to the instrument is switched off before opening the covers

of the Securiterre and starting the electrical installation. Failure to do so may cause danger to persons or damage the instrument.

All covers of the Securiterre must be closed before switching on the power.

The terminal box is fitted with two threaded explosion proof glands of 3/4" NPT. The explosion proof box is fitted with one 3/4" NPT entry and fitted with an explosion proof gland for the blue measuring cable.

Securiterre : See figure 4.1 and 4.2 Power supply : Cable 3 x 1.5 mm2

Ground cable : 6 mm2 must be connected between the earthing screw of the instrument and the loading rack.


Installation

10 5

9 4 8 3 7 2 6

1

SECURITERRE

12V

Earth screw 12V

R3 R5

Earth clamp

To Securistore 2 m

6 m

Mains

Normally closed (NC)

Common (C)

LEGEND

10 5 9 4 8 3 7 2 6 1

Normally open (NO)

Not connected

5 SPDT

6 voltage free contact; 5 A, 220 V

7 for external use

9 Mains: 110 or 220 V~ selectable (see figure 5.2)

10 Power consumption: 10 VA

Figure 4.1 Connection diagram Securiterre

Securicable

Securiterre

Blind

plug

Cable gland

3/4" NPT (2x)

12V

12V

SECURITERRE

R3 R5

CIRCUIT

LAMPS

RED DOT

BLACK DOT

Break-release

Earth clamp Cable length: 1 or 2 meter

part no. 3890.023

TRANSFORMER

Figure 4.2 Interconnection Securiterre/Securistore


Installation

After installation, the following procedure should be executed:

Truck version

• Connect the grounding clamp to the grounding screw of the Securiterre. • Switch on the power supply. The red LEDs should be on and must stay on. • Place the brine magnet on the red dot on the Securiterre outside. The instrument should now respond

within 0.5 second. The red LEDs are switched off and the green LEDs switch on. • If the magnet is withdrawn from the red dot, the instrument must remain in operation (green LEDs on). • Remove the grounding clamp from the screw and the instrument should reset without delay

(red LEDs on).

Rail and drum version

• Connect the grounding clamp to the grounding screw of the Securiterre. • Switch on the power supply. The green LEDs should be on and must stay on. • Remove the clamp from the grounded part. The red LEDs should be on.

The Securiterre window

L1 orange LED 12 V power control of intrinsically safe circuits. L2 orange LED 12 V power control L3 green cluster of 7 LEDs Allowed to fill up (safe grounding) L4 red cluster of 7 LEDs Not allowed to fill up (not safely grounded)

SECURITERRE

L3

L2

12V L1

12V

ENRAF

TYPE UA 1870 N° de fab.

L.C.I.E. 87.B6.029. EEx d [ia] ia II C T6

L4

R3

Figure 4.3 Securiterre window


Commissioning

5 Commissioning

Before starting any products transfer, proceed as follows:

• connect the grounding. This must be done before making any other connection. • Wait a few seconds for the release (green LEDs on)

Note:

To achieve correct grounding conditions, the cable gland must be properly connected. If there is no release after a few seconds (red LEDs on), check the earth connection. It should be clean and rust free.

If in case of the tank truck version of Securiterre, the impedance cannot be measured because of excessive humidity or the presence of brine, a magnetically operated bypass can be activated to establish the initial grounding. Place the brine magnet on the red dot on the Securiterre outside. The instrument should now respond within 0.5 second.

Warning Before starting a transfer it is imperative that the object is properly earthed and that

electrostatic charges are safely diverted to ground in order to prevent the generation of sparks which could cause an explosion.


Adjustment and maintenance

6 Adjustment and maintenance

The instrument is adjusted in the factory and is carefully tested before shipping. Hence installation without any adjustments is possible after receipt of the instrument. After replacement of the measuring cable or for special applications readjustments may be required. Check the instrument thoroughly before starting a readjustment procedure.

Warning All covers must be closed before switching on the electrical power.

6.1 Adjustment procedure Truck version

The Securiterre must be adjusted connected to the Securistore or the grounding cable. In case of a Securistore the ground of this unit must be connected to the ground of the Securiterre. Calibration must be done with the cable rolled up.

1. Switch off the power.

2. Adjust potentiometer R5 (5 KΩ) on the printed board to its minimum value by turning it

counterclockwise.

3. Switch on the power. Make sure that the ground connection to the housing is made.

4. The two orange LEDs L1(12 V), L2 (12 V) and the red clusters of LEDs are lighted. Check.

5. Connect a resistor of 820Ω in parallel to a capacitor of 1000 pF between the clamp and earth (from Securiterre). The Securiterre should not operate.

6. Slowly turn potentiometer R5 clockwise until the instrument just operates (green LEDs are switched on).

From that point, turn R5 three full turns clockwise.

7. Disconnect the clamp from the resistor and capacitor.

8. Reconnect the clamp to earth, the instrument should not operate. (Red LEDs on).

6.2 Verification of the adjustment procedure

1. Connect the grounding clamp to a resistor of 820Ω (without the parallel capacitor).

The instrument should not operate (red LEDs on).

2. Replace the resistor of 820Ω by a resistor of 470Ω parallel to a capacitor of 1000 pF.

The instrument should not operate (red LEDs on).

3. Connect the grounding clamp to a capacitor of 470 pF (remove the resistor). The instrument should not operate (red LEDs on).

3. Connect the grounding clamp to a capacitor of 1000 pF and a resistor of 820Ω.

The instrument should operate (green LEDs on).


Adjustment and maintenance

6.3 Adjustment procedure for other versions

1 All other versions do not require any adjustment in the field.

C11

C8

C7

C6

C13

R6

R21

R20

R19

R12

R11

R10

R22

IC1

R13

T2 T3

D1

R26

R25

R24

R23

-

C9

+

R3

R5

R19

R20

RL1

C3

Road

1k

5k

47k

39k

REED

- -

Rail

- -

- -

27k

68k

- -

100nF

C5

TR1 L1

RL2

C1 R2

R1 R5 Adjust level

RL1

Figure 6.1 Measuring circuit board

Figure 6.2 Power supply circuit board


Appendix A

Appendix A Dimensional drawings

230

82

Cable gland 3/4" NPT (2 x and 1 spare)

Blind plug

Red dot SECURITERRE

12V

12V

R3

ø7 (4x) Blocking device

143 149

Securiterre

386

368

78 85 78

114

129 Top view

21

*

*

Cable gland

*Mounting holes ø12 (4x)

Securistore


Appendix B

Appendix B Specifications

Electrical

Main supply : 110 or 220 V +/- 10%, 50 Hz. Power consumption : 10 VA Measuring voltage : max. 3.5 V Measuring current : max 1 mA Truck capacitance : min 1000 pF Truck resistance : min 820 Ω Number of relays : one relay SPDT (single-pole, double-throw) Contact rating : 5 A, 220 V, non-inductive load

Cabling

Max. cable length : 15 m (standard 6 m cable or 15 m if dispenser is used)

Safety

Grounding system : Eex d [ia] ia IIC T6 or Eex d [ia] ia c IIC T6

Environmental

Ambient temperature : -20 to +60°C


Appendix C

Appendix C Spare parts

Spare parts list Securiterre

Description Part. No.

Set of: Power supply board (see figure 5.2) 2547.080 Measuring board (see figure 5.1)

Set of fuses for 220 V (see figure 5.2) 0870.951 Set of fuses for 110 V (see figure 5.2) 0870.952 Display board 2547.076 Clamp for train or truck version 0870.804 Break-release 0870.805 Clamp for drum version 3881.010 Cable Securiterre * 3890.023 Brine magnet 0870.113

Spare parts list Securistore

Description Part. No.

Cable 15 m* 0870824

* order length/metre


Index

Index

Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Adjustment procedure . . . . . . . . . . . . . . . . 14, 15 Brine magnet . . . . . . . . . . . . . . . . . . 6, 12, 13, 18 Cable dispenser . . . . . . . . . . . . . . . . . . . . . . . . . 6 Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3, 8

Label on Securiterre . . . . . . . . . . . . . . . . . . . . . . 9 LED

green . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-14 orange . . . . . . . . . . . . . . . . . . . . . . . . . . 12, 14 red . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12-14

Circuit board Note . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3, 8 measuring . . . . . . . . . . . . . . . . . . . . . . . . . . 15 power supply . . . . . . . . . . . . . . . . . . . . . 15, 18

Principle of operation . . . . . . . . . . . . . . . . . . . . . 6 Relay circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Dimensional drawing Safety approvals . . . . . . . . . . . . . . . . . . . . . . . . . 8 Securistore . . . . . . . . . . . . . . . . . . . . . . . . . 16 Securiterre . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Grounding

Securistore . . . . . . . . . . . . . . . . . . . . 6, 11, 14, 18 Spare parts list Securistore . . . . . . . . . . . . . . . . . . . . . . . . . 18

cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Securiterre . . . . . . . . . . . . . . . . . . . . . . . . . . 18 clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Hazardous area . . . . . . . . . . . . . . . . . . . . . . . 3, 8 Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3, 8 Identification code . . . . . . . . . . . . . . . . . . . . . . . . 9 Installation

electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mechanical . . . . . . . . . . . . . . . . . . . . . . . . . 10


Notes

Honeywell Enraf

Delftechpark 39

2628 XJ Delft

The Netherlands

Tel: +31 (0)15-2701 100

Email: [email protected]

www.honeywellenraf.com

4416568 - Revision 4May 2009© 2009 Honeywell International Inc.

Instruction manual 870 Securiterre - Honeywell · Instruction manual 870 ... (also for small ships...

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