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Teledyne 700 IR Series Instruction Manual

Infrared gas detector for combustible and co2 gases
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INSTRUCTION MANUAL
700 IR SERIES
INFRARED GAS DETECTOR
FOR COMBUSTIBLE AND CO
GASES
2
OLCT 700
OLCT 710
NP700IRIMEN-Revision E.0

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  • Page 1 INSTRUCTION MANUAL 700 IR SERIES INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES OLCT 700 OLCT 710 NP700IRIMEN-Revision E.0...
  • Page 2 Instruction manuals in other languages are available on Website https://teledynegasandflamedetection.com Copyright  November 2023 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

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Table of Contents Introduction ..................1 Description ........................ 1 Modular Mechanical Design ................... 3 Plug-in Replaceable Sensor ..................5 Installation ................... 7 ATEX Operational Guidelines for Safe Use ............7 Functional Safety (SIL 2) ..................
  • Page 4 700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Table of Figures Figure 1: Sensor Cell Construction ......................2 Figure 2: Principle of Operation ......................3 Figure 3: Detector Assembly Breakaway ....................4 Figure 4: OLCT 700 Assembly Front View .................... 4 Figure 5: OLCT 710 Front View ......................
  • Page 5 Limitation of Reliability • TELEDYNE OLDHAM SIMTRONICS ll 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...
  • Page 6 700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Guarantee • Under normal conditions of use and on return to the factory, sensors and electronics parts are guaranteed for 2 years from date of shipment; excluding consumables as dessiccant, filters, etc.

  • Page 7: Introduction

    Description OLCT 710 OLCT 700 Teledyne Oldham Simtronics OLCT 700 IR combustible gas transmitters are non-intrusive “Smart” detectors designed to detect and monitor combustible hydrocarbon or CO gases in air. The range of detection is 0-100% LEL or from 5 to 100% volume of CO .

  • Page 8: Figure 1: Sensor Cell Construction

    CO . Unlike catalytic bead type sensors, Teledyne Oldham Simtronics IR sensors are completely resistant to poisoning from corrosive gases and they can operate in the absence of an oxygen background.

  • Page 9: Modular Mechanical Design

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL When present, the target gas absorbs a fraction of the IR radiation and the signal output from the active detector decreases accordingly. The signal output of the reference detector remains unchanged in the presence of the target gas.

  • Page 10: Figure 3: Detector Assembly Breakaway

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Plug-in Replacable Combustible Lens and LCD Housing Bottom Hydrocarbon Sensor Display Assembly Splash Guard Intelligent Transmitter Module (ITM) Magnetic Micro-Processor controlled circuit Housing Bottom Programming encapsulated in an explosion proof...

  • Page 11: Plug-In Replaceable Sensor

    It is packaged as a true plug-in replaceable type sensor with over-sized gold- plated connections that eliminate corrosion problems. It can be accessed and replaced in the field very easily by releasing the locking screw and unthreading the housing bottom. The Teledyne Oldham Simtronics IR combustible hydrocarbon gas sensor and the CO gas sensor have an infinite shelf life, and are supported by a 2-year warranty.
  • Page 12 700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL NP700IRIMEN Revision E.0...

  • Page 13: Installation

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Installation ATEX Operational Guidelines for Safe Use OLCT 700/710 conforms to the requirements of European Directive ATEX 2014/34/UE relating to explosive 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 14: Functional Safety (Sil 2)

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL A good ground connection should be verified between the sensor’s metal enclosure and the junction box. If a good ground connection is not made, the sensor can be grounded to the junction box using the sensor’s external ground lug.
  • Page 15 When possible, mount the detector in an area void of high wind, accumulating dust, rain, or splashing from hose spray, direct steam releases, and continuous vibration. If the detector cannot be mounted away from these conditions then make sure the Teledyne Oldham Simtronics Harsh Environment Splashguard accessory is used (PN DET-943-002273-000).

  • Page 16: Sensor Contaminants And Interference

    Sensor Contaminants and Interference Teledyne Oldham Simtronics OLCT 700/710 IR combustible hydrocarbon gas detectors may be adversely affected by exposure to certain airborne substances. Loss of sensitivity or corrosion may be gradual if such materials are present in sufficient concentrations.

  • Page 17: Electrical Installation

    Figure 8: Outline and Mounting Dimensions When mounting on a pole, secure the Junction Box to a suitable mounting plate and attach the mounting plate to the pole using U-Bolts (Pole-Mounting brackets for Teledyne Oldham Simtronics J-box accessories are available separately).

  • Page 18: Field Wiring

    NOTE: Unused port should be blocked with the M20x1.5 male plug supplied by Teledyne Oldham Simtronics (ATEX and ‘Ex d IIC’ certified). The engagement shall be 5 threads at least.

  • Page 19: Table 1: Wire Gauge Vs. Distance

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Table 1: Wire Gauge vs. Distance Over-Current Wire Dia. Cross Section Meters/Feet Protection 0,65 mm 0,32 mm² 700/2080 0,8 mm 0,5 mm² 1120/3350 1,0 mm 0,8 mm²...
  • Page 20 700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL 2 - Arrange the cable as shown in the picture 3 – Arrange the braid as shown in the picture. Avoid creating "pigtails" 4 - Insert the part back into the OLCT 710 2.7.2...

  • Page 21: Figure 10: Detector Wire Connections

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Customer Supplied Wiring (In) Explosion Customer Supplied Wiring Proof Power from and 4-20mA Junction Box (Out to next Device) out to Control Device A(+) A(+) B(-) B(-)

  • Page 22: Initial Start Up

    Remove test gas and observe that the display decreases to “0”. Initial operational tests are complete. Teledyne Oldham Simtronics OLCT 700/710 IR combustible gas detectors are factory calibrated prior to shipment, and should not require significant adjustment on start up.

  • Page 23: Operation

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Operation Programming Magnet Operating Instructions The Operator Interface of the OLCT 700/710 IR Series gas detectors is accomplished via two internal magnetic switches located to either side of the LED display (see Figure 12). The two switches, labeled “PGM1”...

  • Page 24: Operator Interface

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL NOTE: While in the Program Mode, if there is no magnetic switch interaction after 4 consecutive menu scrolls, the detector will automatically revert to normal operating condition. While changing values inside menu items, if there is no magnet activity after 3-4 seconds the detector will (exception to this is with “Signal Output Check”...

  • Page 25: Normal Operation

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Software Flowchart Normal Operation PGM1 (3) PGM1 (3) Calibration Mode (Auto Zero) PGM2 (10) PGM2 (3) Set Gas Type & Range Auto Time-Out Calibration Mode PGM1/2 (M)

  • Page 26: Calibration Mode (Autozero And Autospan)

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Calibration Mode (AutoZero and AutoSpan) 3.4.1 AutoZero The AutoZero function is used to set the detector’s zero baseline. Local ambient air can be used to zero calibrate the detector as long as it can be confirmed that it contains no combustible hydrocarbon gases.
  • Page 27 700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL 3.4.2 AutoSpan The AutoSpan function is used to span calibrate the sensor. Span adjustment is recommended at 50% of range for LEL and CO detectors. If a span gas containing the recommended concentration is not available, other concentrations may be used as long as they fall between 5% and 95% of the detector’s range.
  • Page 28 700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL c) Apply the span calibration test gas at a flow rate of 0.5l/min. As the detector signal begins to increase the display will switch to reporting a flashing “XX” reading as the detector shows the sensor’s “as found”...

  • Page 29: Program Mode

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Program Mode Program Mode provides a View Sensor Status menu to check operational and configuration parameters. Program Mode also provides for adjustment of the AutoSpan Level, Gas Factor, Gas Type and Range, and Serial ID.
  • Page 30 700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL From the View Sensor Status text scroll, hold the magnet over PGM1 or PGM2 until the “” prompt appears and continue to hold the magnet in place for an additional 3-4 seconds (until the display starts to scroll “Status Is”).
  • Page 31 700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL 3.5.3 Set AutoSpan Level Set AutoSpan Level is used to set the span gas concentration level that is being used to calibrate the detector. This level is adjustable from 5% to 95% of range. The current setting can be viewed in View Program Status.

  • Page 32: Table 2: Gas Factors

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL 3.5.5 Set Gas Factor Because of the IR sensor’s almost universal response to combustible hydrocarbon gases, the OLCT 700/710 IR detector can be configured and calibrated to detect any of the combustible gases listed in the Table 2.
  • Page 33 3.5.6 Set Serial ID Teledyne Oldham Simtronics OLCT 700 IR detectors can be polled serially via RS-485 Modbus™ RTU. Refer to Section 4.0 for details on using the Modbus output feature. Set Serial ID is used to set the Modbus serial ID address. It is adjustable from 01 to 256 in hexadecimal format (01-FF hex).
  • Page 34 700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL NOTE: The “Set Sensor Gain” function is executed during factory calibration of every OLCT 700/710 IR detector. In the field, this menu item is only needed when a replacement plug-in IR sensor is being installed, or when mating a new ITM with an existing plug-in sensor.

  • Page 35: Program Features

    • AutoSpan: AutoSpan Calibration Settings are lost. AutoSpan must be performed (Section 3.4). Program Features Teledyne Oldham Simtronics OLCT 700/710 IR gas detectors incorporate a comprehensive set of diagnostic features to achieve Fail-Safe Operation. These Operational features and Failsafe Diagnostic features are detailed below.
  • Page 36 700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Sensor Life Sensor Life is calculated after each AutoSpan calibration and is reported as an indicator of remaining service life. It is reported in the “View Sensor Status” menu and as a RS-485 Modbus register bit.
  • Page 37 700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Stability Fault – AutoSpan If the detector fails the signal stability criteria during AutoSpan sequence (Section 0) the “Stability Fault” will be declared. A “Stability Fault” will cause a “Fault Detected” message to scroll once a minute on the display and drop the milliamp output to 0mA.
  • Page 38 If an AutoSpan Reminder Fault occurs, the 4-20mA signal remains operational. Refer to the Troubleshooting Guide, Section 6, for guidance on fault conditions If you cannot fix the fault condition, email our Technical Service team at oldhamsimtronics-support@teledyne.com or call +33 (0)3 21 60 80 86. NP700IRIMEN...

  • Page 39: Rs-485 Modbus™ Protocol

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL RS-485 Modbus™ Protocol OLCT 700/710 detectors feature Modbus™ compatible communications protocol and are addressable via the program mode. Communication is two wire, half duplex 485, 9600 baud, 8 data bits, 1 stop bit, no parity, with the detector set up as a slave device.

  • Page 40: Table 4: Modbus™ Special Registers

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Content Description Content Definition Value Meaning Range 40010 Read Temperature 28 °C 03/06 40011 Special #1 Function dependent on value of 40006 (See Special Register Table 4)

  • Page 41: Service And Maintenance

    Test results should be recorded and reviewed to determine a suitable calibration interval; however, it must not exceed one year. The general manager should put safety procedures in place on-site. TELEDYNE OLDHAM SIMTRONICS cannot be held responsible for their enforcement.

  • Page 42: Replacement Of Ir Plug-In Combustible Gas Sensor

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Replacement of IR Plug-in Combustible Gas Sensor Plug-in Replacable Combustible Lens and LCD Housing Bottom Hydrocarbon Sensor Display Assembly Splash Guard Intelligent Transmitter Module (ITM) Magnetic Micro-Processor controlled circuit...

  • Page 43: Troubleshooting Guide

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Troubleshooting Guide Refer to the list of Failsafe Diagnostic features listed in Section 3.6.2 for additional reference in troubleshooting activities. Listed below are some typical trouble conditions and their probable cause and resolution path.
  • Page 44 Possible Causes: Unstable power supply, inadequate grounding, or inadequate RFI protection. • Verify Power source is stable • Verify field wiring is properly shielded and grounded • Contact Teledyne Oldham Simtronics to optimize shielding and grounding • Add Teledyne Oldham Simtronics’s RFI Protection Circuit accessory NP700IRIMEN...
  • Page 45 • Perform a “Signal Output Check” sequence via Section 3.5.8 and verify 4-20mA output with Current Meter • Swap with new ITM to determine if the ITM’s 4-20mA output circuit has failed • If the 4-20mA current loop is still out of tolerance, contact Teledyne Oldham Simtronics at oldhamsimtronics-support@teledyne.com NP700IRIMEN...
  • Page 46 RMA numbers should be obtained from the Teledyne Oldham Simtronics Service Department prior to equipment being returned. For on-line technical service, customers should have ready the model number, part number, and serial number of product(s) in question.

  • Page 47: Appendix

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Appendix Specifications Sensor Type: Continuous diffusion/adsorption type NDIR Non-Dispersive Infrared Sub-miniature plug-in replaceable type Sensor Life: 5 years typical Measurement Range: Combustible 0-100% LEL, 0-50% LEL, 0-100% by volume (Combustible Gas) 0-0.3/0.5/0-1/0-3/0-5% by volume (low range version)
  • Page 48 700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL ATEX Marking: II 2 GEx db IIB+H T4 Gb (Tamb=-40° to +70°C) Ingress Protection: NEMA 4X, IP66 Safety Approvals: ATEX CE Marking SIL2 FMEDA Rating Warranty: Plug-in sensor – 2 years Transmitter –...

  • Page 49: Spare Parts, Detector Accessories, Calibration Equipment

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Spare Parts, Detector Accessories, Calibration Equipment Part Number Spare Parts DET-927-215500-100 OLCT 700/710 IR Intelligent Transmitter Module (ITM) OLCT 700/710 IR Housing Bottom Assembly (includes Flame DET-602-003152-000...

  • Page 50: Olct 700/710 Ir Drawings

    700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL OLCT 700/710 IR Drawings NP700IRIMEN Revision E.0...
  • Page 51 700 IR Series INFRARED GAS DETECTOR FOR COMBUSTIBLE AND CO GASES USER MANUAL Ground Ground OLCT 710 IR Series Dimensional NP700IRIMEN Revision E.0...
  • Page 52 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 Tel.: +86-134-8229-5057 www.teledynegasandflamedetection.com © 2023 TELEDYNE OLDHAM SIMTRONICS. All right reserved. NP700IRIMEN Revision E.0 / November 2023...

This manual is also suitable for:

Olct 700Olct 710

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