TELEDYNE OLDHAM SIMTRONICS OLCT 80 d User manual

NPO80GB-Revision F.1
OLCT 80
GAS TRANSMITTER
USER
MANUAL

OLCT 80
GAS TRANSMITTER
USER MANUAL
II
NPO80GB
Revision F.1
User Manuals in other languages are available on
Website https://teledynegasandflamedetection.com
Copyright July 2021 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.
All of the information that is provided in this document is accurate to the best of our knowledge.
As a result of continuous research and development, the specifications of this product may be
changed without prior notice.
TELEDYNE OLDHAM SIMTRONICS S.A.S.
Rue Orfila
Z.I. Est – CS 20417
62027 ARRAS Cedex

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Table of Contents
1Overview........................................................................................... 1
1.1 Limitation of Liability.........................................................................................1
1.2 Ownership clauses............................................................................................1
1.3 Warnings...............................................................................................................2
1.4 Important Information.....................................................................................2
1.5 Warranty...............................................................................................................2
1.6 Destruction of equipment .............................................................................3
1.7 Symbols used ......................................................................................................3
2Transmitter Overview ..................................................................... 5
2.1 Purpose .................................................................................................................5
2.2 Versions .................................................................................................................5
2.3 External components ......................................................................................6
2.4 Internal components.......................................................................................8
2.5 Device markings................................................................................................8
2.6 Indicators..............................................................................................................9
2.7 Infrared remote control..................................................................................11
3Menus ................................................................................................ 13
3.1 Purpose of the menus .....................................................................................13
3.2 Accessing the menus ......................................................................................13
3.3 Tree structure of the main menus...............................................................14
3.4 Complete tree structure of the menus.....................................................14
3.5 Index of menu settings....................................................................................18
3.6 AFF MES .................................................................................................................21
3.7 DATE TIME .............................................................................................................22
3.8 PROGR...................................................................................................................23
3.9 MAINT.....................................................................................................................41
3.10 CALIBRA ................................................................................................................43
3.11 4-20 mA.................................................................................................................47
3.12 INFOS......................................................................................................................48
3.13 TEST..........................................................................................................................49

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4Installation ........................................................................................ 51
4.1 Regulations and operating conditions.....................................................51
4.2 Pre-installation Hardware Configuration .................................................51
4.3 Equipment required.........................................................................................52
4.4 Positioning the detector.................................................................................52
4.5 Mounting the detector...................................................................................52
4.6 Power supply.......................................................................................................53
4.7 Preparing the connection cables..............................................................54
4.8 Wiring .....................................................................................................................55
4.9 Transfer curve .....................................................................................................58
5Wireless Version .............................................................................. 59
5.1 Purpose .................................................................................................................59
5.2 Concept ...............................................................................................................59
5.3 Components.......................................................................................................60
5.4 Connection .........................................................................................................60
5.5 Configuration .....................................................................................................61
5.6 Configuring the addresses ............................................................................62
5.7 Start-up..................................................................................................................63
6Operation.......................................................................................... 65
6.1 Configuring the transmitter...........................................................................65
6.2 Start-up..................................................................................................................65
6.3 Gas reading display.........................................................................................66
6.4 Acknowledging an alarm..............................................................................67
6.5 Zeroing...................................................................................................................68
6.6 Gas sensitivity test.............................................................................................68
7Pre-installation Hardware Configuration .................................. 69
7.1 Purpose .................................................................................................................69
7.2 Access the internal printed circuit board ...............................................69
7.3 Locate the solder pads ..................................................................................69
7.4 Configuring the auxiliary inputs to connect a 2-wire 4-20mA
sensor 70
7.5 Configuring the auxiliary inputs to connect a 3-wire 4-20mA
sensor 71
7.6 Configuring the auxiliary inputs to connect a 4-wire 4-20mA
sensor 71

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8Preventative Maintenance........................................................... 73
8.1 Maintenance frequency ...............................................................................73
8.2 OLCT 80.................................................................................................................73
9Maintenance ................................................................................... 75
9.1 Possible transmitter errors...............................................................................75
9.2 Replacing the sensor cell ..............................................................................76
9.3 Cross gas factors for combustible gases.................................................76
9.4 Maintaining the remote control..................................................................79
10 Accessories ...................................................................................... 81
10.1 Cable gland........................................................................................................82
11 Replacement Parts ......................................................................... 83
11.1 Accessories for the OLCT 80 .........................................................................83
11.2 Flameproof approved replacement sensors.........................................83
11.3 Intrinsically-safe approved replacement sensors ................................84
12 EU Declarations of Conformity .................................................... 85
12.1 OLCT 80 without and with antenna...........................................................86
12.2 IR20 remote control of the OLCT 80...........................................................89
13 Technical Specifications............................................................... 91
13.1 Dimensions...........................................................................................................91
13.2 Metrological characteristics.........................................................................92
13.3 JBus communication specifications..........................................................95
14 Special instructions for use in explosive atmospheres and
fonctional safety ............................................................................. 99
14.1 General comments..........................................................................................99
14.2 Warnings...............................................................................................................99
14.3 Requirements for use in dust explosive atmospheres.........................99
14.4 Cable entries ......................................................................................................99
14.5 Threaded joints ..................................................................................................100
14.6 Limitations of use...............................................................................................100
14.7 Overange and exposition to specific components............................100
14.8 Operation under low oxygen levels ..........................................................100
14.9 Installation and calibration ...........................................................................101
14.10 Marking .................................................................................................................101

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14.11 Side label..............................................................................................................105
14.12 For the Handheld Unit IR20............................................................................105
15 Errors and Faults .............................................................................. 107

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1Overview
Thank you for choosing this TELEDYNE OLDHAM SIMTRONICS instrument.
All necessary actions have been taken to ensure your complete satisfaction with this equipment.
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.
No business, person or legal entity may assume responsibility on behalf of TELEDYNE OLDHAM
SIMTRONICS, even though they may be involved in the sale of TELEDYNE OLDHAM
SIMTRONICS products.
TELEDYNE OLDHAM SIMTRONICS shall not be responsible for any direct or indirect damage,
or any direct or indirect consequence, resulting from the sale and use of any of its products
UNLESS SUCH PRODUCTS HAVE BEEN SELECTED BY TELEDYNE OLDHAM SIMTRONICS
ACCORDING TO THE APPLICATION.
1.2 Ownership clauses
The drawings, specifications, and information herein contain confidential information that is the
property of TELEDYNE OLDHAM SIMTRONICS.
This information shall not, either in whole or in part, by physical, electronic, or any other means
whatsoever, be reproduced, copied, divulged, translated, or used as the basis for the
manufacture or sale of TELEDYNE OLDHAM SIMTRONICS equipment, or for any other reason
without the prior written consent of TELEDYNE OLDHAM SIMTRONICS.

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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.
This instrument shall only be deemed to be in conformance with the published performance if
used, maintained, and repaired in accordance with the instructions of TELEDYNE OLDHAM
SIMTRONICS, by TELEDYNE OLDHAM SIMTRONICS personnel, or by personnel authorized
by TELEDYNE OLDHAM SIMTRONICS.
1.4 Important Information
The modification of the material and the use of parts of an unspecified origin shall entail the
cancellation of any form of warranty.
The use of the unit has been projected for the applications specified in the technical
characteristics. Exceeding the indicated values cannot in any case be authorized.
Catalytic sensors are susceptible to poisoning by traces of several substances. This leads to an
inhibition which can be permanent or temporary depending on the contaminant, the
concentration of the contaminant, the duration of exposure to the contaminant.
Poisoning may result from exposure to substances as:
•silicones (e.g. waterproofing, adhesives, release agents, special oils and greases, certain
medical products, commercial cleaning agents)
•tetraethyl lead (e.g. leaded petrol, particularly aviation petrol ‘Avgas’)
•sulfur compounds (sulfur dioxide, hydrogen sulfide)
•halogenated compounds (R134a, HFO, etc.)
•organo-phosphorus compounds (e.g. herbicides, insecticides, and phosphate esters in
fireproof hydraulic fluids)
TELEDYNE OLDHAM SIMTRONICS recommends regular testing of fixed gas detection
installations (read 8).
1.5 Warranty
Under normal conditions of use and on return to the factory, parts and workmanship are
guaranteed for 2 years, excluding consumables such as sensors, filters, etc.

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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
example at a site that is officially designated for recycling of electrical and electronic
equipment (EEE) or a point of exchange for authorized products in the event of the
acquisition of a new product of the same type.
The OLCT80 transmitter contains a lithium ion battery intended to supply power to
certain parts of the electronic circuit. The battery will be removed prior to the
destruction of the transmitter and deposited in a collection center for used batteries.
1.7 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 the instructions preceded by this
symbol can result in a risk of electric shock and/or death.
This symbol indicates:
You must refer to the instructions.

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2Transmitter Overview
2.1 Purpose
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.
The transmitter also includes a digital LCD display, two alarm relays with programmable
thresholds and a fault relay.
The device is programmed using an intrinsically-safe infrared remote control that can be used in
ATEX zones.
2.2 Versions
2.2.1 Explosion-proof, intrinsically-safe versions
The following types of transmitters are available:
•Explosion-proof: the enclosure and sensor pack assembly is explosion-proof. The
explosion-proof certified version is designated OLCT 80d .
•Explosion-proof + intrinsically-safe: the transmitter's enclosure is explosion-proof and the
sensor pack is intrinsically-safe. Only the versions using an electrochemical sensor are
available in this style. The explosion-proof, intrinsically-safe certified version is designated
OLCT 80id .
The table below lists the versions available.
OLCT 80d
OLCT 80id
Catalytic sensor
Electrochemical sensor
XPIR infrared sensor
Table 1: comparison of OLCT 80 detectors.

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2.2.2 Local and remote sensor versions
There are two different options for the OLCT 80:
• OLCT 80 , which uses a local sensor. It consists of an explosion-proof transmitter with an
integrated intrinsically-safe detection module (B) or explosion-proof detection module
(A).
• OLCT 80D , which uses a remote sensor. It consists of an explosion-proof transmitter with
a remote intrinsically-safe detection module (D) or explosion-proof detection module (C).
Figure 1: OLCT 80 types
2.3 External components
2.3.1 Overview
Item
Description
1.
Cable glands (4 x M20 and 2 x M25) or threaded caps.
2.
Digital display and indicator lights. See Figure 4 for further detail.
3.
Grounding terminal (not visible in figure).
4.
Cover locking screw.
5.
Integrated or remote sensor pack (main sensor). See page 6 for further detail.
6. 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.

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2.3.2 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).
•Intrinsically-safe sensor: blue stainless steel sensor equipped with a protective Teflon
membrane (1 and 3).
Figure 3: intrinsically-safe and explosion-proof sensors.
2.3.3 Displays and indicator lights
Item
Description
1. Green power indicator light.
2. Orange fault indicator light.
3. Red level 1 alarm indicator light.
4.
Red level 2 alarm indicator light.
5.
LCD digital display, backlit.
6. Infrared receptor for the signal coming from the IR20 remote control. See Infrared
remote control on page 11.
7. Level 1 and level 2 alarm icons. The icons blink in the event of an alarm, but changes
to a solid icon once the alarm is acknowledged using the IR20 remote control.
8. Maintenance/fault icon (sensor, electronic, connection fault etc.).
9. Text field (type of gas, unit, configuration-related text).
Figure 4: front view.

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2.4 Internal components
The main items accessible to the user are the connectors located on the motherboard. See page
55 for the connections.
Item
Description
1.
24 VDC power supply and RS485 connection.
2.
4-20 mA analog output and ANA1/ANA2 analog inputs.
3. Relays (default, Rel1 and Rel2).
4. Fault relay dry contact output.
5. Rel2 relay dry contact output.
6.
Rel1 relay dry contact output.
7.
24 VDC power output and RS485 connection.
Figure 5: internal components of the transmitter.
2.5 Device markings
2.5.1 Name plate
This area on the cover lists all necessary information regarding the detector's characteristics:
Item
Description
1.
ATEX marking. Product type.
2.
Warning in French.
3.
Manufacturer name.
4.
CE and ATEX markings (excluding metrological
performance).
5.
Maximum rated temperature.
6.
Warning in English.
Figure 6: name plate

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2.5.2 Side label
This label, located on the housing, includes the following information:
Figure 7: side label
2.6 Indicators
2.6.1 At start-up
The following sequence of indicators/text is displayed:
•
All LCD segments are displayed to ensure that they are working
properly. The and indicators turn on as solid lights.
•The result of the RAM memory check. The and indicators remain
on as solid lights.
•
The result of the flash memory check. The and indicators remain
on as solid lights.
•The result of the EEprom memory check. The and indicators
remain on as solid lights.
Item
Description
1.
Thread diameter and pitch of the cable entries (here 2x
M20 and 1x M25)
2. P/N of transmitter (here OLCT80 d variant) without the
sensor cell
3. S/N of transmitter : first two digits (here 17) correspond
to the year of construction (here 2017).
4.
Recycling symbol

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•The stabilization time is then displayed. The indicator light blinks, while
the indicator light is a solid light.
•
The post-stabilization gas concentration and sensor test are displayed.
The indicator light blinks. The indicator light is off.
Figure 8: display sequence at start-up.
2.6.2 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 configured in one of
two ways:
- To display the readings in succession (normal mode).
- To display a single reading (see page 21).
Figure 9: display
under normal
operating
conditions. The
green indicator
light blinks.
2.6.3 If a fault or error is detected
The display indicates an error or fault message (see list of faults on page
107). The orange indicator light comes on and the
icon is
displayed at the same time.
Press to list any other faults that may be present, until you come to the
word "FIN."
Figure 10: in the
event of an alarm or
fault, the type of
fault is displayed.
The orange
fault indicator light
remains on as a solid
light.
2.6.4 Understanding the indicator lights
Light
Off
Blinking
Solid
No power to
detector.
Detector powered.

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Not applicable. No detector fault. Detector fault or detector in
maintenance mode.
Level 1 alarm not
triggered.
Level 1 alarm
triggered and not
acknowledged.
Level 1 alarm triggered and
acknowledged (remote control).
Level 2 alarm not
triggered.
Level 1 alarm
triggered and not
acknowledged.
Level 2 alarm triggered and
acknowledged (remote control).
2.7 Infrared remote control
2.7.1 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. The remote control's rear battery slot
holds two AA 1.5-V batteries.
The leather case must be used in ATEX zones.
Item
Description
1. Infrared transmitter.
2. Soft-touch buttons.
3. Operating light.
4. The remote control in its leather case.
5. Two AA 1.5 V batteries.
6. Battery slot cover (removable after removing screw).
Figure 11: IR20 infrared remote control.

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2.7.2 Using the remote control
To control the gas detector, point the front of the remote control (Figure 11: IR20 infrared remote
control. 1) toward the detector. Refer to 3, page 13, for instructions on how to access the menus
and perform the various maintenance tasks.
2.7.3 Using the remote control's buttons
Button
Related action
Decrease a value or navigate between sub-menus at the same level.
Increase a value, modify a setting or navigate between sub-menus at the same
level.
Access and leave menus.
Confirm.

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3Menus
3.1 Purpose of the menus
The menus allow the user to perform various operations in relation to the OLCT 80 's settings
(configure the ANA1/ANA2 sensors, alarm thresholds and relays, 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. These precautions include:
•Obtaining a hot-work permit from the relevant department.
•Using a portable for detection of combustible gases at all times.
•Using an intrinsically-safe multimeter, where applicable.
•Performing the operation as quickly as possible.
This pertains to all OLCT 80 versions, whether equipped with an explosion-proof or
intrinsically-safe sensor pack.
3.2 Accessing the menus
Follow the steps below:
•Point the infrared remote control toward the OLCT 80 .
Figure 12: the remote control
pointed toward the OLCT 80.
•Push the Menu button on the remote control.
•
The AFF MES menu will appear on the display of the
OLCT 8 0.
Figure 13: the start menu.

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3.3 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 .
3.4 Complete tree structure of the menus
See Figure 15 and
Figure 16.
Menu
Sub-menu
Description
Page
AFF MES Display values for the selected
channel.
21
DATE
TIME
Set the date and time. 22
PROGR. Configure the transmitter. Access
code required to access this menu.
23
PG SENSOR Access the channel configuration sub-
menus.
25
PG SENSOR Configure the main channel (local
sensor).
26
PG CH1 Configure the ANA1 sensor. 27
PG CH2 Configure the ANA2 sensor. 30
PG AL/REL Access the configuration sub-menus
for the alarm thresholds and relays.
30
AL SENSOR Configure the alarm thresholds for the
main sensor.
31
AL CH1 Configure the alarm thresholds for the
ANA1 sensor.
31
AL CH2 Configure the alarm thresholds for the
ANA2 sensor.
32