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Oldham OLCT 80 User Manual

Gas transmitter
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OLCT 80
User manual
Part Number: NPO80GB
Revision: E.1
The Fixed Gas Detection Experts
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Summary of Contents for Oldham OLCT 80

  • Page 1 OLCT 80 User manual Part Number: NPO80GB Revision: E.1 The Fixed Gas Detection Experts...
  • Page 2 Copyright july 2018 by Oldham S.A.S All rights reserved. No reproduction of all or part of this document, in any for mis permitted without the written consent of Oldham S.A.S. All information provided in this document is accurate to the best of our knowledge.

  • Page 3: Table Of Contents

    Table of Contents │ Overview ............1 Chapter 1 Limitation of Liability ..................1 Ownership clauses ...................1 Warnings ......................1 Warranty ......................1 Important Information ..................2 Destruction of equipment ..................2 Symbols used ....................3 Chapter 2 | Transmitter Overview ......... 5 Purpose......................5 Versions ......................5 External components ..................6 Internal components ..................8 Device markings ....................8...
  • Page 4 Configuring the auxiliary inputs to connect a 4-wire 4-20mA sensor .... 75 Chapter 8 | Preventative Maintenance ........77 Maintenance frequency ................. 77 OLCT 80 ......................77 Chapter 9 | Maintenance ............79 Possible transmitter errors ................79 Replacing the sensor cell................80 Cross gas factors for combustible gases ............
  • Page 5 Chapter 12 | EU Declarations of Conformity ......89 OLCT 80 without antenna ................90 OLCT 80 with antenna ................... 92 IR20 remote control of the OLCT 80 ............. 94 Chapter 13 | Technical Specifications ........95 Dimensions ....................95 Metrological characteristics ................
  • Page 6 Table of Contents...

  • Page 7: Chapter 1 │ Overview

    Limitation of Liability ■ OLDHAM 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 8: Important Information

    (R134a, HFO, etc.) • organo-phosphorus compounds (e.g. herbicides, insecticides, and phosphate esters in fireproof hydraulic fluids) Oldham recommends regular testing of fixed gas detection installations (read Chapter 8). 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.

  • Page 9: Symbols Used

    Symbols used Icon Signification This symbol indicates : useful additional information. This symbol indicates : This equipment must be connected to ground. This symbol denotes: Protective earth terminal. A cable of the adequate diameter must be connected to ground and to the terminal having this symbol This symbol denotes: Attention! In the present mode of use, failure to adhere to...
  • Page 10 1 – Overwiew...

  • Page 11: Chapter 2 | Transmitter Overview

    Gas detector OLCT 80 is a digital and analog transmitter designed to measure combustible and toxic gases, as well as oxygen levels, in ATEX zones. The OLCT 80 has 2 auxiliary inputs, ANA1 and ANA2, with a 4-20 mA signal, to monitor up to 3 parameters simultaneously.

  • Page 12: External Components

    Cover locking screw. Integrated or remote sensor pack (main sensor). See page 6 for further detail. Additional detectors; maximum of two per OLCT 80. See page 6 for further detail. Figure 2: external view of the components of an OLCT 80 transmitter.
  • Page 13 Differentiating explosion-proof and intrinsically-safe sensors In addition to different ATEX markings, explosion-proof and intrinsically-safe sensors can also be distinguished by the color of their sensor pack: ■ Explosion-proof sensor: unpainted stainless steel sensor equipped with a sintered metal piece (2 and 4). ■...

  • Page 14: Internal Components

    Internal components The main items accessible to the user are the connectors located on the motherboard. See page 57 for the connections. Item Description 24 VDC power supply and RS485 connection. 4-20 mA analog output and ANA1/ANA2 analog inputs. Relays (default, Rel1 and Rel2). Fault relay dry contact output.

  • Page 15: Indicators

    Side label This label, located on the housing, includes the following information: Item Description Thread diameter and pitch of the cable entries (here 2x M20 and 1x M25) P/N of transmitter (here OLCT80 d variant) without the sensor cell S/N of transmitter : first two digits (here 17) correspond to the year of Figure 7: side label construction (here 2017).
  • Page 16 During normal operation ■ Single sensor: the display indicates the concentration measured and also alternates between the type of gas and the unit. The indicator light blinks. The indicator light is off. ■ At least 2 sensors connected: the display can be Figure 9: display under normal configured in one of two ways:...

  • Page 17: Infrared Remote Control

    Description The IR20 infrared remote control is a stand-alone device that can be used to configure and control the OLCT 80 remotely without opening its housing. Certified intrinsically safe, it can be used in IIC-type explosive atmospheres in surface industries. The maximum range of this remote control is approximately 5 meters under normal daylight conditions.
  • Page 18 2 – Transmitter Overview...

  • Page 19: Chapter 3 | Menus

    RS485 connection, date and time, etc.). These menus can be accessed using the infrared remote control, without opening the cover of the OLCT 80. It is important to take the necessary safety precautions before opening the cover if the device is installed in an ATEX zone.

  • Page 20: Tree Structure Of The Main Menus

    Tree structure of the main menus The menus are shown below. Each of these menus is described under Complete tree structure of the menus below. Figure 14: main menus of the OLCT 80. Complete tree structure of the menus See Figure 15 and Figure 16.
  • Page 21 Menu Sub-menu Description Page Define the code to access PASSW. the configuration menus. MAINT Display maintenance-related settings. CALIBRA Display the 3 calibration sub- menus for the main sensor, the ANA1 sensor and the ANA2 sensor. Access code required to access this menu.
  • Page 22 Figure 15: the OLCT 80's sub-menus under AFF MES, DATE TIME and PROG. 3 – Menus...
  • Page 23 Figure 16: the OLCT 80's sub-menus under MAINT, CALIBRA, 4-20mA, INFOS and TEST. 3 – Menus...

  • Page 24: Index Of Menu Settings

    4-20 mA – control the output current for 4-20 mA testing purposes 4-20 mA – manage the analog output PROG. > PG SENSOR > signal of the OLCT 80 PG SENSOR > Normal / Synth / CAPEX Display Display readings AFF.MES...
  • Page 25 Setting Menu See page ANA1 sensor – range maximum PROG. > PG SENSOR > PG ANA1 > Zero in V ANA1 sensor – verify PROG. > PG SENSOR > PG ANA1 > Gamme ANA1 sensor – on/off PROG. > PG SENSOR > PG ANA1 >...
  • Page 26 Setting Menu See page Alarm #2 – increasing/decreasing PROG. > PG AL/REL > AL SENSOR > AL2 incre /decre Alarms #1 and #2 - ANA1 and ANA2 sensors Refer to the Alarm #1 and Alarm #2 settings for the main sensor, since the information is similar.

  • Page 27: Aff Mes

    Use the buttons on the remote control to navigate the menu's tree structure as shown in figure 17. As long as the OLCT 80 is on this menu, the system will continue to operate normally and monitor gas levels. To leave this menu and return to normal operating mode, push the ESC button on the remote control two times.

  • Page 28: Date Time

    DATE TIME Purpose Define the internal Date and Time settings of the OLCT 80 transmitter. How to access Press , then , then . See Figure 14. Tree structure Figure 18: the Date and Time menu. Use the buttons on the remote control to change the date and time values as indicated in Figure 18.

  • Page 29: Progr

    PROGR Purpose Access the following sub-menus: ■ PG SENSOR (configure the settings of the main sensor and the ANA1 and ANA2 sensors). ■ PG AL/REL (configure the alarms and the 3 internal relays). ■ PG SERIE (configure the settings of the serial connection and the backlighting of the LCD display).
  • Page 30 Tree structure Figure 20: the Configuration menu leads to 4 different sub-menus. Press ESC repeatedly to return to the reading display. Menu Description See page PG SENSOR Configure the main channel (local sensor), the ANA1 channel and the ANA2 channel. PG AL/REL Configure the alarms and relays.

  • Page 31: Pg Sensor

    PG SENSOR Purpose This menu leads to the following sub-menus: ■ PG SENSOR (configure the settings of the local sensor). ■ PG CH1 (configure the settings of the ANA1 sensor). ■ PG CH2 (configure the settings of the ANA2 sensor). Tree structure Figure 21: the Channel Configuration menu.

  • Page 32: Pg Sensor

    PG SENSOR Purpose Configure the main sensor. How to access See Figure 21. Tree structure Figure 22: the Sensor Configuration menu. Press ESC repeatedly to return to the reading display. The settings of the main sensor (range, type of gas, etc.) are factory-set and cannot be changed.
  • Page 33 Menu Description Turn the main sensor on or off. ■ PRINCIPAL Display: display the reading from the main sensor. ■ Primary: display the reading from the main sensor and go to the 4-20 mA menu (see step below). ■ Secondary: the reading is not displayed. Note: if multiple sensors (main sensor, ANA1 sensor or ANA2 sensor) are configured as the Primary, the -4-20 mA output will use the current corresponding to the Main sensor.

  • Page 34: Pg Ch1

    PG CH1 Purpose Configure the ANA1 sensor. How to access See Figure 21. Tree structure See Figure 23. Menu Description Turn the ANA1 sensor on or off. ■ PRINCIPAL Display: display the reading from the ANA1 sensor. ■ Primary: display the reading from the ANA1 sensor and go to the 4-20 mA menu (see step below).
  • Page 35 Figure 23: the ANA1 Configuration menu. Press ESC repeatedly to return to the reading display. 3 – Menus...

  • Page 36: Pg Ch2

    Menu Description ■ OvR Lock Yes: verification is activated. If the device detects a gas concentration above 100% LEL, it will display the word "Sup." The reading is blocked and the output signal is fixed at 23.2 mA. The verification request is acknowledged using the infrared remote control.

  • Page 37: Pg Al/Rel

    PG AL/REL Purpose Configure the alarms of the local sensor and the alarm relays. How to access See Figure 20. Tree structure Figure 24: the Alarm/Relay Configuration menu. Press ESC repeatedly to return to the reading display. Menu Description See page AL SENSOR Configure the alarms of the local sensor.

  • Page 38: Al Sensor

    AL SENSOR Configure the alarm thresholds of the main sensor and assign relays. How to access See Figure 24. Tree structure Menu Description ■ Yes: the level-1 alarm is used. The following menus are used to define the settings for this alarm. ■...
  • Page 39 Figure 25: the Alarm/Relay Configuration menu. Press ESC repeatedly to return to the reading display. 3 – Menus...

  • Page 40: Al Ch1

    AL CH1 Configure the thresholds of the ANA1 sensor and assign relays. How to access See Figure 24. Tree structure See Figure 25. The steps are identical to those described for the main sensor. AL CH2 Configure the thresholds of the ANA2 sensor and assign relays. How to access See Figure 24.

  • Page 41: Relais 1

    RELAIS 1 Configure relay R1. How to access See Figure 24. Tree structure Menu Description ■ R1 intern Internal: the relay is triggered by the internal electronics of the transmitter. ■ External: the relay is triggered by the MX 62 central measuring controller or an API via the RS485 (Modbus) connection.
  • Page 42 Figure 26: RELAY 1 menu. Press ESC repeatedly to return to the reading display. 3 – Menus...

  • Page 43: Relais 2

    RELAIS 2 Configure relay R2. How to access See Figure 24. Tree structure See Figure 26. The steps are identical to those described for Relay 1. 3 – Menus...

  • Page 44: Relais D

    RELAIS D Configure the fault relay. How to access See Figure 24. Tree structure Figure 27: the Fault Relay menu. Press ESC repeatedly to return to the reading display. Menu Description ■ Internal: the relay is triggered by the internal electronics of the RD intern transmitter.

  • Page 45: Pg Serie

    1200, 2400, 4800, 9600, 19200 and 38400 bauds. ■ LINE Line: used if the OLCT 80 is connected to the line of an MX 43. ■ Loop: used if the OLCT 80 is connected to the loop of an MX 62 or an API, for example.
  • Page 46 Figure 28: the Alarm/Relay Configuration menu. Press ESC repeatedly to return to the reading display. 3 – Menus...

  • Page 47: Pg Passw

    PG PASSW Purpose Configure (modify) the access code for the OLCT 80. The default code is 1000. Important: if multiple OLCT 80s are in range of the remote control, assign them different access codes How to access See Figure 20.

  • Page 48: Maint

    MAINT This menu displays certain settings related to maintenance How to access See Figure 14. Tree structure Figure 30: the Maintenance menu. Press ESC repeatedly to return to the reading display. 3 – Menus...
  • Page 49 Internal temperature within the housing. Temp C °C Temperature of the main sensor. Supply V Supply voltage to the terminals of the OLCT 80. Ref V Internal reference voltage (normally 2.5 V). 1V25 V Internal reference voltage (normally 1.25 V).

  • Page 50: Calibra

    CALIBRA Display the 3 calibration sub-menus for the main sensor, the ANA1 sensor and the ANA2 sensor. How to access See Figure 14. Tree structure Menu Description See page 0000 acces Enter the access code (1000 by default). Cal sensor Calibrate the main sensor.

  • Page 51: Cal Sensor

    Cal sensor Calibrate the main sensor (adjust zero and sensitivity). How to access See Figure 31. Tree structure Figure 32: the Calibration menu. Press ESC repeatedly to return to the reading display. Menu Description Calib. Gas Configure the value of the calibration gas to be used. Adjust.’0’’...
  • Page 52 Menu Description ■ Sûre ?? ENTER: confirm the changes made and return to the CALIBRA menu. ■ ESC: cancel the changes made and return to the CALIBRA menu. Close the valve on the bottle of calibration gas and remove the injection hood.

  • Page 53: Chgt Sens

    Chgt sens This procedure must be carried out after the main sensor is replaced. This menu resets the wear rate value for the main sensor, which is displayed under the Maintenance menu (see T. usure % on page 42). The zeroing and sensitivity adjustment procedure must be carried out for the new sensor (see Sensor calibration on page 45).

  • Page 54: Cal Ch1

    Cal CH1 Calibrate the sensor connected to the ANA1 inlet (see the documentation for this sensor) with the relays blocked for 5 minutes. The two indicators lights ( ) will blink. The AL1 and AL2 alarm indicator lights will be activated if the threshold is exceeded.
  • Page 55 Define the output current value available from the OUT terminal (Figure 5, 2), from 1 to 25 mA. The analog output will then be controlled by the OLCT 80. Figure 34: the 4-20 mA menu. Press ESC repeatedly to return to the reading display.

  • Page 56: Infos

    Tree structure Menu Description Ver GB 1.9 Version number of the application R 65135xx Part number of the OLCT 80 without sensor (housing only). eep 2.0 Version number of the EEPROM software. N° 001 Serial number of the OLCT 80. 1303000 Manufacturer batch number.

  • Page 57: Test

    How to access See Figure 14. Tree structure Figure 36: the Test menu. Press ESC repeatedly to return to the reading display. After 5 minutes the OLCT 80 will automatically switch back into normal operating mode. 3 – Menus...
  • Page 58 3 – Menus...

  • Page 59: Chapter 4 | Installation

    Chapter 4 | 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). 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 60: Equipment Required

    Equipment required ■ Complete detector. ■ Connection cable. ■ Tools for mounting the device. ■ Mounting materials. Positioning the detector The detector should be positioned at ground level, on the ceiling, at the height of the respiratory tract or near air extraction ducts, depending on the application or the density of the gas to be detected.

  • Page 61: Power Supply

    (right). Power supply Current in the power line The power consumption listed in the table below corresponds to an OLCT 80 equipped with a main sensor. It does not include the power consumption of an ANA1/ANA2 sensors used.

  • Page 62: Preparing The Connection Cables

    Preparing the connection cables Preparing the cable The cable will be brought to the detection point. Professional standards for running wires and maintaining and protecting cables must be followed. Disconnecting power If the central system to which the transmitter will be connected is already activated: 1.

  • Page 63: Wiring

    Wiring Power must be disconnected during the wiring process. The site must be grounded. Stand-alone OLCT 80 Figure 40: wiring for a stand-alone OLCT 80. Item Description Analog output (4-20 mA). Auxiliary input #1, 4-20 mA, 24 VDC. Auxiliary input #2, 4-20 mA, 24 VDC.
  • Page 64 OLCT 80 linked to a central controller or PLC – analog mode Figure 41: wiring to a central detection controller (analog mode). Item Description Analog output (4-20 mA). Auxiliary input #1, 4-20 mA, 24 VDC. Auxiliary input #2, 4-20 mA, 24 VDC.
  • Page 65 Shielded cable designed for RS485 communication, e.g., Belden 3841 cable. Grounding the housing Connect the housing's earth terminal to the ground in accordance with regulation. The OLCT 80 has a dedicated terminal for grounding located on the outside of the housing (Figure 2, 3). Closing the cover The cover must be tightly closed before connecting the cable to the terminal of the central system.

  • Page 66: Transfer Curve

    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- Oldham 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 67: Chapter 5 | Wireless Version

    Chapter 5 | Wireless Version Purpose The OLCT 80 is available in a wireless version that may be appropriate in the following situations: ■ Data transmission over long distances. ■ Gas detection on moving equipment (e.g., crane bucket). ■ Situations where wiring would be problematic, if not impossible (e.g., across a road, waterway or railway).

  • Page 68: Components

    Components The RS485 output of the OLCT 80 is connected to an integrated wireless card (rep.B) within the transmitter. A certified antenna (rep.A) transmits the radio waves to a master receiver (rep.C), which is connected to an MX43 central controller (rep.D).

  • Page 69: Configuration

    The data transmission speed of the Modbus serial connection is 9600 bauds, no parity. Modifying the microswitches In a mesh network, the OLCT 80's wireless cards must be configured in repeater mode. Follow the steps below: ■ Cut off power to the OLCT 80 before modifying the position of the microswitches.

  • Page 70: Configuring The Addresses

    Configure the addresses of the OLCT 80 as indicated under Serial connection configuration on page 39. ■ Calculate the address of the OLCT 80's internal wireless care by adding 50 to the slave number of the main sensor. 5 – Wireless Version...
  • Page 71 Address of the main sensor: 1. Address of the ANA1 sensor: 2. Address of the OLCT 80's internal wireless card: 51 (i.e., 50 + 1). The @50 address is reserved for the master receiver. Configuring the addresses of the OLCT 80's wireless cards To configure the address of the OLCT 80's wireless card, move the 10s-place switch (B) and the 1s-place switch (A) to the desired values (i.e., 51 in the case...

  • Page 72: Start-Up

    Follow the steps below: 1. Check that the addresses have been configured properly (rotary switches, OLCT 80 wireless cards (Figure 50, A and B) and master receiver wireless cards (Figure 52, D). 2. Turn on power to the OLCT 80s and the master receiver.
  • Page 73 "E" in Figure 52. In normal operating mode, the LED (Figure 53, B) of the OLCT 80 's wireless card blinks orange, while the LED (Figure 52, F) of the master receiver blinks red.
  • Page 74 5 – Wireless Version...

  • Page 75: Chapter 6 | Operation

    Chapter 6 | Operation The operations explained in this section must be performed by authorized, qualified personnel because they could affect detection reliability. Configuring the transmitter Configure the sensor following the standard steps described in the table below: Step Description See section See page System date and time.

  • Page 76: Start-Up

    Start-up Preliminary inspection Check the following: ■ That wiring was performed correctly. ■ That the detector housing is grounded. ■ That the braided shield of the connection cable is connected to the ground of the central system. ■ That the device is securely mounted (screws, cable gland, cover screwed on and locked).

  • Page 77: Acknowledging An Alarm

    Display in the event of a fault ■ The display will read "8888" followed by a fault code. ■ The DEF fault indicator light will illuminate. See page 111 for a list of error and fault codes. Figure 55: display in the event of a fault.

  • Page 78: Zeroing

    Zeroing Figure 59: zero test. 1. Go to the Test menu using the IR20 remote control. The relays will be blocked for 5 minutes. 2. Place the calibration hood over the detector head (Figure 59, B). 3. Connect the calibration hood to the bottle of clear air (Figure 59, E) using a piece of flexible tubing (Figure 59, C).

  • Page 79: Pre-Installation Hardware Configuration

    Since solder joints need to be created, this procedure must be performed in a workshop with a non-explosive atmosphere. The OLCT 80 must be disconnected from power during the soldering procedure. Purpose...

  • Page 80: Configuring The Auxiliary Inputs To Connect A 2-Wire 4-20Ma Sensor

    Configuration principle The ANA1/ANA2 sensors are each configured by creating a solder joint. ■ Item C in the figure: no solder joint created. ■ Item D in the figure: solder joint formed. Figure 60: example of a solder pad with and without a solder joint. Configuring the auxiliary inputs to connect a 2-wire 4-20mA sensor ■...

  • Page 81: Configuring The Auxiliary Inputs To Connect A 3-Wire 4-20Ma Sensor

    Configuring the auxiliary inputs to connect a 3-wire 4-20mA sensor ■ In 1 input used: apply a solder joint to PPS2 and PPS7, remove PPS1. ■ In 2 input used: apply a solder joint to PPS4 and PPS8, remove PPS3. Figure 62: auxiliary input configuration for a 3-wire 4-20mA sensor.
  • Page 82 7 – Pre-installation Hardware Configuration...

  • Page 83: Chapter 8 | Preventative Maintenance

    Maintenance frequency Gas detectors are safety devices. Oldham 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. This test does not, in any event, replace a full calibration of the detector.
  • Page 84 8 – Preventative Maintenance...

  • Page 85: Chapter 9 | Maintenance

    Chapter 9 | Maintenance Maintenance mainly involves replacing any sensors that no longer meet their original metrological specifications. The operations explained in this section must be performed by authorized, qualified personnel because they could affect detection reliability. Inspection and maintenance must be carried out in accordance with the current editions of EN60079-17 and eventually with any local or national additional requirements that may apply in the country of installation.

  • Page 86: Replacing The Sensor Cell

    Reverse the procedure to reassemble the device; insert and tighten the locking screw. Restore the signal from the OLCT 80 to the central system. Reset the OLCT 80's wear rate to zero as described under Sensor replacement on page 47.
  • Page 87 Methane Pentane Hydrogen Propane 1.60 0.80 Styrene 2.40 1.20 Toluene 2.50 1.25 Xylene 2.40 1.20 Table 2: calibration coefficients for 4F-type combustible sensors Molecular C4H10 C5H12 formula coef. coef. coef. coef. (% v/v) (% v/v) Ethyl acetate 2.10 11.50 1.65 0.90 0.80 Acetone...
  • Page 88 Molecular C4H10 C5H12 formula coef. coef. coef. coef. (% v/v) (% v/v) Octane 1.00 6.00 2.70 1.45 1.30 Ethylene oxide 2.60 2.10 1.70 1.15 1.00 (epoxyethane) Propylene oxide 1.90 37.00 2.35 1.90 1.25 1.15 (epoxypropane) Pentane 1.40 8.00 2.10 1.15 1.00 Propane 2.00...

  • Page 89: Maintaining The Remote Control

    Maintaining the remote control Replacing the batteries The two AA batteries (1.5 V) in the device need to be replaced if transmission quality decreases. In this case, remove the remote control (1) from its case (2), remove the cover from the battery compartment (4) and replace the old batteries (3) with two new identical batteries.
  • Page 90 10 – Accessories...

  • Page 91: Chapter 10 | Accessories

    Chapter 10 | Accessories Accessory Illustration Code Tool kit Tool kit for maintenance. 6147870 6145856 Inject the calibration gas onto the 6331141 Gas injection pipe measurement sensor. Plastic material. Impact on reading: measurement Risk of electrostatic similar to measurement in diffusion charges.
  • Page 92 Impact on reading: none. Impact on response time: may increase by 10%. Weather guard Protects outdoor-mounted 6123716 detectors. Impact on reading: none. Impact on response time: negligible. Used to configure and maintain the IR20 remote 6327878 OLCT 80. control 10 – Accessories...

  • Page 93: Chapter 11 | Replacement Parts

    OLCT 80 sensor pack, 0-100% LEL, type VQ1 6 313 872 OLCT 80 sensor pack, 0-100% LEL, butadiene/acetylene, type VQ1 6 313 974 OLCT 80 poison control sensor pack, 0-100% LEL, type 4F 6 313 687 OLCT 80 sensor pack, 0-100% vol. CH 6 313 986 OLCT 80 sensor pack, 0-100% vol.

  • Page 94: Intrinsically-Safe Approved Replacement Sensors

    6 313 895 OLCT 80 intrinsically-safe NH sensor pack, 0-5000 ppm 6 313 694 OLCT 80 intrinsically-safe CO sensor pack, 0-1000 ppm compensated H 6 313 711 OLCT 80 intrinsically-safe CO sensor pack, 0-100 ppm 6 313 712 OLCT 80 intrinsically-safe CO sensor pack, 0-300 ppm...

  • Page 95: Chapter 12 | Eu Declarations Of Conformity

    Chapter 12 | EU Declarations of Conformity The following pages represent copies of the EU declarations of conformity for the following devices related to the OLCT 80 detector: ■ OLCT 80 without antenna ■ OLCT 80 with antenna ■ IR 20 remote control...

  • Page 96: Olct 80 Without Antenna

    OLCT 80 without antenna 12 – EU Declarations of Conformity...
  • Page 97 12 – EU Declarations of Conformity...

  • Page 98: Olct 80 With Antenna

    OLCT 80 with antenna 12 – EU Declarations of Conformity...
  • Page 99 12 – EU Declarations of Conformity...

  • Page 100: Ir20 Remote Control Of The Olct 80

    IR20 remote control of the OLCT 80 12 – EU Declarations of Conformity...

  • Page 101: Chapter 13 | Technical Specifications

    Chapter 13 | Technical Specifications Dimensions Figure 23: dimensions. Metrological characteristics Complete detector Function: Transmitter with 1-3 sensors. Gas detected, detection Depends on the sensor pack connected. See the method and measurement section on Sensors. range: 13 – Technical Specifications...
  • Page 102 ■ Display: 4-digit backlit LCD screen. ■ Displays reading, gas type, unit, faults and menus. ■ Green indicator light: power. ■ Red indicator light: fault or maintenance. ■ Red indicator lights (2): alarm #1 or alarm #2. ■ Alarms: 2 independent alarm levels per channel. ■...
  • Page 103 NEPSI certification: OLCT 80d and OLCT 80 D d. Certificate NEPSI GYJ17.1201X ■ Conforms to BG 3836.1.2010, GB 3836.2-2010, GB 3836.4-2010 for OLCT 80id and OLCT 80 D id. Certificate NEPSI GYJ17.1202X Weight: 3.5 kg with local sensor pack. ■...
  • Page 104 Sensors Gas type Measure- Explosion Intrinsically Temp. % RH Accuracy (ppm) Average Resp. time Storage ment range -proof -safe range (°C) service life T50/T90 (s) conditions (ppm) sensor sensor (months) and time Combustible +/-1% LEL  Catalytic 0-100% LEL -25 to +55 0-95 6/15 (CH4) gases (from 0-70% LEL)

  • Page 105: Jbus Communication Specifications

    Binary mode. ASCII mode ■ This mode is used if the OLCT 80 is connected via a digital link to an Oldham central controller type MX 62. ■ Speed: 38400 bauds,1 start bit, 7 bits, even parity, 1 stop bit.
  • Page 106 Binary mode ■ This mode is used if the OLCT 80 is connected via a digital link to an Oldham MX 43 central controller. Transfer table with register numbers in decimal notation. /* readings */ Registre N° Mesure courante capteur (sans virgule)
  • Page 107 Bit N° Non utilisée Bit N° Non utilisée Bit N° Non utilisée /* relays */ Registre N°25 ETAT des RELAIS Bit N° Etat du relais 1 en Sécurité + ou Sécurité - Bit N° Etat du relais 2 en Sécurité + ou Sécurité - Bit N°...
  • Page 108 13 – Technical Specifications...

  • Page 109: Chapter 14 | Special Instructions For Use In Explosive Atmospheres And Fonctional Safety

    The cables should be suitable for use at a temperature equal to or greater than 80°C. Threaded joints Threaded joints have different values than those specified in EN60079-1 standard. Oldham does not allow the repair of the threaded joints and shall not 14 – Special instructions for use in explosive atmospheres and fonctional safety...

  • Page 110: Limitations Of Use

    The threaded joints on the OLCT 80 may be lubricated to ensure protection against explosions. Only non-hardening lubricants or non-corrosive agents without volatile solvents may be used.

  • Page 111: Marking

    WARNING: Do not open when energized. After de-energizing, delay 2 minutes before opening. Read user manual (cable glands). T6…T5 ou T85°C…T100°C according to maximum power dissipated OLCT 80 D d detector (with remote sensor, ‘d’ type) On the detector: OLDHAM SAS...
  • Page 112 Read user manual (cable glands). OLCT80 D id detector (with remote sensor, ‘i’ type) On the detector: OLDHAM SAS 62027, ARRAS France OLCT 80 D id CE0080 INERIS 03ATEX0240X II 2 (1) G D Ex db [ia Ga] IIC T4 Gb Ex tb [ia Da] IIIC T135°C Dd...
  • Page 113 OLCT80 WD d detector (wireless version with local sensor, ‘d’ type) On the detector: OLDHAM SAS 62027, ARRAS France OLCT 80 WD d CE0080 INERIS 03ATEX0240X II 2 G Ex db IIB T5 Gb T.Amb : -20°C to 60°C WARNING: Do not open when energized. After de-energizing, delay 2 minutes before opening.
  • Page 114 OLCT80 WD id detector (wireless version with remote sensor, ‘i’ type) On the detector: OLDHAM SAS 62027, ARRAS France OLCT 80 WD id CE0080 INERIS 03ATEX0240X II 2 (1) G II (1) D Ex db [ia IIC Ga] IIB T4 Gb [Ex ia IIIC Da] T.Amb : -20°C to 60°C...
  • Page 115 In ATEX zones 1 and 2, the use of the protective case is mandatory to avoid any risk of electrostatic discharges. The batteries must be replaced with batteries that are identical to those indicated by Oldham. ■ The operating temperature is between - 40° C and + 70 °C.
  • Page 116 14 – Special instructions for use in explosive environments and fonctional safety...

  • Page 117: Chapter 15 | Errors And Faults

    Chapter 15 | Errors and Faults In the event that the OLCT 80 detects a fault or error: ■ The orange indicator light (Figure 4, 2) will illuminate. ■ A specific message will be displayed (Figure 4, 5). Cause of the...
  • Page 118 Protect the sensor from temperature out of extreme variations in range temperature. See the Metrological characteristics on page 95. OLCT 80 Protect the OLCT 80 from temperature out of extreme variations in range. temperature. See Operating temperature under Metrological characteristics on page 95.
  • Page 120 The Fixed Gas Detection Experts EUROPEAN PLANT AND OFFICES Z.I. Est – rue Orfila CS 20417 – 62027 Arras Cedex FRANCE Tél: +33 (0)3 21 60 80 80 – Fax: +33 (0)3 21 60 80 00 Website: https:/gasdetection.3m.com AMERICAS ASIA PACIFIC EUROPE Tel: +1-713-559-9280 Tel: +86-21-3127-6373...

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