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TELEDYNE OLDHAM SIMTRONICS OLCT 20 User Manual

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USER MANUAL
OLCT 20
GAS DETECTOR
NPO20GB-Revision G.1

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Summary of Contents for TELEDYNE OLDHAM SIMTRONICS OLCT 20

  • Page 1 USER MANUAL OLCT 20 GAS DETECTOR NPO20GB-Revision G.1...
  • Page 2 User Manuals in other languages are available on Website https://teledynegasandflamedetection.com Copyright  November 2022 by TELEDYNE OLDHAM SIMTRONICS S.A.S. All rights reserved. No reproduction of all or part of this document, in any form, is permitted without the written consent of TELEDYNE OLDHAM SIMTRONICS S.A.S.

  • Page 3: Table Of Contents

    Equipment required ..................9 Positioning the detector ................. 9 Mounting the detector ..................9 Maintenance ................... 11 Maintenance frequency ................11 Detector OLC 20 ....................12 Transmitters OLCT 20 ..................12 Replacing a sensor on OLCT 20 ..............14 NPO20GB Revision G.1...
  • Page 4 OLCT 20 GAS DETECTOR USER MANUAL Spare Parts ..................15 Flameproof approved replacement sensors ......... 15 Intrinsically-safe approved replacement sensors ......... 16 Accessories ..................17 Technical Specifications ............... 19 Common ....................... 19 OLC 20d ........................ 19 OLCT 20d ....................... 19 OLCT 20i .........................

  • Page 5: Overview

    It is important that you read this entire manual carefully and thoroughly. 1.1 Limitation of Liability • TELEDYNE OLDHAM SIMTRONICS shall not be held responsible for any damage to the equipment or for any physical injury or death resulting in whole or in part from the inappropriate use or installation of the equipment, non-compliance with any and all instructions, warnings, standards and/or regulations in force.

  • Page 6: Warnings

    GAS DETECTOR USER MANUAL 1.3 Warnings • This is not a contractual document. TELEDYNE OLDHAM SIMTRONICS reserves the right to alter the technical features of its equipment at any time and for any reason without prior notice. • READ THESE INSTRUCTIONS CAREFULLY BEFORE USING FOR THE FIRST TIME: these instructions should be read by all persons who have or will have responsibility for the use, maintenance, or repair of the instrument.

  • Page 7: Destruction Of Equipment

    OLCT 20 GAS DETECTOR USER MANUAL 1.6 Destruction of equipment European Union only. This symbol indicates that, in conformity with directive DEEE (2002/96/CE) and in accordance with local regulations, this product must not be discarded with household waste. It must be disposed of in a collection area that is designated for this purpose, for...
  • Page 8 OLCT 20 GAS DETECTOR USER MANUAL NPO20GB Revision G.1...

  • Page 9: Description

    OLC 20 gas detectors are catalytic type detectors intended for the detection of combustible gases. They are flameproof certified (OLC 20d). OLCT 20 gas detectors are 4-20 mA transmitters and are intended for the measurement of combustible and toxic gases and oxygen. They are either flameproof certified (OLCT 20d) or intrinsically safe certified (OLCT 20i).

  • Page 10: Mechanical Installation Of The Various Versions

    Please ensure you read the paragraph: Special Specifications for use in Potentially Explosive Atmospheres in Accordance with European Directive ATEX 2014/34/EU. See Appendix 1 for general installation instructions. Figure 1 : Dimensions Dimensions OLC/OLCT 20 Cable length 0.2 m NPO20GB Revision G.1...

  • Page 11: Wiring Arrangements

    Please ensure you read the paragraph: Special Specifications for use in Explosive Atmospheres in Accordance with European Directive ATEX 2014/34/EU. 3.1 3-wire version (OLC 20d, OLCT 20d) Figure 2 TELEDYNE OLDHAM OLC or OLCT 20 Grounding Power supply Signal (I) SIMTRONICS controller 3.2 2-wire version (OLCT 20d)

  • Page 12: 2-Wire Intrinsic Safety Version (Olct 20I)

    OLCT 20 GAS DETECTOR USER MANUAL 3.3 2-wire Intrinsic Safety version (OLCT 20i) Figure 4 TELEDYNE OLDHAM SIMTRONICS controller OLCT 20 Zener Barrier NPO20GB Revision G.1...

  • Page 13: Installation

    OLCT 20 GAS DETECTOR USER MANUAL Installation It is recommended that you read the relevant guides for installing, operating and maintaining flammable gas and oxygen detectors (EN 60079-29-2) and toxic detectors (EN 45544-4). 4.1 Regulations and operating conditions • Installation must comply with current edition of EN 60079-14 for systems installed in explosive atmospheres and eventually with any local or national additional requirements that may apply in the country of installation.
  • Page 14 OLCT 20 GAS DETECTOR USER MANUAL Despite its high degree of protection (IP66), it may be necessary to protect the detector against adverse weather conditions (rain, dust, direct sunlight, etc.) and from direct spraying with cleaning or maintenance products (causing soiling of the detection sensor).

  • Page 15: Maintenance

    5.1 Maintenance frequency Gas detectors are safety devices. TELEDYNE OLDHAM SIMTRONICS recommends regular testing of fixed gas detection installations. This type of test involves injecting a standard gas of sufficient concentration into the detector to trigger pre-set alarms.

  • Page 16: Detector Olc 20

    • Turn on the channel and check that it operates correctly 5.3 Transmitters OLCT 20 OLCT 20 gas transmitters are equipped with a pre-calibrated sensor and do not require any adjustment on installation. However, as gas detectors are safety equipment, it is recommended to bump test the complete transmitter after a sensor replacement.
  • Page 17 OLCT 20 GAS DETECTOR USER MANUAL 5.3.1 Calibration After removing the sensor from the transmitter, perform the calibration by using the calibrating bench provided for that purpose (see CALIBRO’s user manual). Procedure On the controller On the detector Set the measuring channel to the calibration...

  • Page 18: Calibration Specifications

    (LEL/TOX/O standard gas), using potentiometer (item 2). item 2 5.4 Replacing a sensor on OLCT 20 When? • When the sensor is damaged or cannot be calibrated. • On a preventive basis. How? • Turn off the relevant measuring channel.

  • Page 19: Spare Parts

    OLCT 20 GAS DETECTOR USER MANUAL Spare Parts All replacement parts must be TELEDYNE OLDHAM SIMTRONICS-manufactured parts. The use of non-TELEDYNE OLDHAM SIMTRONICS parts could jeopardize the instrument's safety. 6.1 Flameproof approved replacement sensors Part number Description 6 313 757...

  • Page 20: Intrinsically-Safe Approved Replacement Sensors

    OLCT 20 GAS DETECTOR USER MANUAL Part number Description 6 313 773 OLCT 20d sensor cell, R12 6 313 774 OLCT 20d sensor cell, R134a 6 313 775 OLCT 20d sensor cell, MOS 6.2 Intrinsically-safe approved replacement sensors Part number...

  • Page 21: Accessories

    OLCT 20 GAS DETECTOR USER MANUAL Accessories Accessory Illustration Code Tool kit Tool kit for maintenance. 6147869 Gas injection Inject the calibration gas onto the 6331141 pipe measurement sensor. Plastic material. Impact on reading: measurement Risk of electrostatic similar to measurement in diffusion charges.
  • Page 22 OLCT 20 GAS DETECTOR USER MANUAL Accessory Illustration Code Remote gas Used to detect ambient gases while 6327911 injection head a calibration gas injection pipe is Plastic material. being used. Only for combustible Risk of electrostatic gases, charges. Wipe with a Impact on reading: none.

  • Page 23: Technical Specifications

    OLCT 20 GAS DETECTOR USER MANUAL Technical Specifications Common Ingress Protection IP66 Weight 800 g Dimensions 60 X 120 mm Source mode current 4-20 mA Max. current 25 mA Fault current <1 mA OLC 20d Power supply: voltage on detector terminals = 2.8 V max...

  • Page 24: Sensors

    OLCT 20 GAS DETECTOR USER MANUAL 8.5 Sensors Combustible 0-100% 6/15  Catalytic -20 to +55 0-95 +/-1% LEL (from 0-70% LEL) gases (CH4)  Arsine 1.00 -20 to +40 20 - 90 +/- 0.05 30/120  Chlorine 10.0 -20 to +40 10 - 90 +/- 0.4...
  • Page 25 OLCT 20 GAS DETECTOR USER MANUAL  Freon R408a 1000 -20 to +55 20 - 95 +/- 15% (from 20-70% PE) 25/90  Ethanol -20 to +55 20 - 95 +/- 15% (from 20-70% PE) 25/60  Toluene -20 to +55 20 - 95...

  • Page 26: Cross Gas Factors For Combustible Gases

    OLCT 20 GAS DETECTOR USER MANUAL 8.6 Cross gas factors for combustible gases It is recommended that the detector is calibrated using the gas to be measured. Users wishing to calibrate the detector using a gas other that detected and factory-programmed should refer to the following table, and use the recommended gas and corresponding coefficient.
  • Page 27 OLCT 20 GAS DETECTOR USER MANUAL 8.6.2 Poison resistant catalytic sensor, type VQ1 Chemical Flash Vapor Coefficient- Coefficient- Coefficient - Coefficient - Formula point density Calibration gas Calibration gas Calibration gas Calibration (°C) CH4 (methane) C4H10 (Hydrogen) (Butane) C5H12 (Pentane)
  • Page 28 OLCT 20 GAS DETECTOR USER MANUAL Chemical Flash Vapor Coefficient- Coefficient- Coefficient - Coefficient - Formula point density Calibration gas Calibration gas Calibration gas Calibration (°C) CH4 (methane) C4H10 (Hydrogen) (Butane) C5H12 (Pentane) Methacrylate Methane 5.00 15.00 -188 0.55 1.00...

  • Page 29: Eu Declaration Of Conformity

    OLCT 20 GAS DETECTOR USER MANUAL EU Declaration of Conformity NPO20GB Revision G.1...
  • Page 30 OLCT 20 GAS DETECTOR USER MANUAL NPO20GB Revision G.1...

  • Page 31: Special Instructions For Use In Explosive Atmospheres And Fonctional Safety

    10.1 General comments OLCT 20 gas detectors comply with the requirements of ATEX 2014/34/UE European Directive relating to explosive Dust and Gas atmospheres. The information given in the following sections should be respected and taken into account by the manager of the site where the equipment is installed.

  • Page 32: Threaded Joints

    OLCT 20 GAS DETECTOR USER MANUAL 10.5 Threaded joints Threaded joints have different values than those specified in EN60079-1 standard. TELEDYNE OLDHAM SIMTRONICS does not allow the repair of the threaded joints and shall not be held responsible for any damage to the equipment or for any physical injury or death resulting from any product modification.

  • Page 33: Installation And Calibration

    The curve below gives the transmitter output current as a function of gas concentration. In the event that the user connects the transmitter to a non- TELEDYNE OLDHAM SIMTRONICS central controller, the user must ensure that the transfer curve is compatible with the equipment's input characteristics to correctly interpret the data coming in from the transmitter.
  • Page 34 OLCT 20 GAS DETECTOR USER MANUAL OLC 20d detector TELEDYNE OLDHAM SIMTRONICS SAS 62027, ARRAS France OLC20d CE0080 INERIS 01ATEX0004X II 2 GD Ex db IIC T6 Gb Ex tb IIIC T85°C Db T.Amb : -20°C to 70°C WARNING: Do not open when energized. Read user manual (cable entry).
  • Page 35 OLCT 20 GAS DETECTOR USER MANUAL OLCT 20i detector TELEDYNE OLDHAM SIMTRONICS SAS 62027, ARRAS France OLCT20i CE0080 INERIS 01ATEX0004X II 1 GD Ex ia IIC T4 Ga Ex ia IIIC T135°C Da T.Amb : -20°C to 70°C WARNING: Read user manual (cable entry).
  • Page 36 Z.I. Est – CS 20417 Ruiping Road, Xuhui District TX 77429, 62027 ARRAS Cedex, SHANGHAI FRANCE CHINA Tel.: +1-713-559-9200 Tel.: +33 (0)3 21 60 80 80 TGFD_APAC@Teledyne.com www.teledynegasandflamedetection.com © 2022 TELEDYNE OLDHAM SIMTRONICS. All right reserved. NPO20GB Revision G.1 / November 2022...

This manual is also suitable for:

Olc 20Olc 20dOlct 20dOlct 20iOlc 20sOlct 20s

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