Oldham olct 80 User manual

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User manual
OLCT 80
Part Number: NPO80GB
Revision: E.1
The Fixed Gas Detection Experts

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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.
As a result of continuous research and development, the specifications of this
product may be changed without prior notice.
Oldham S.A.S
Rue Orfila
Z.I. Est –CS 20417
F –62027 ARRAS Cedex
Tel: [phone]
Fax: [phone]

Table of Contents
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Table of Contents
Chapter 1 │Overview...........................................................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
Indicators ..........................................................................................................9
Infrared remote control .................................................................................. 11
Chapter 3 | Menus................................................................13
Accessing the menus..................................................................................... 13
Tree structure of the main menus.................................................................. 14
Complete tree structure of the menus........................................................... 14
Index of menu settings................................................................................... 18
AFF MES ....................................................................................................... 21
DATE TIME.................................................................................................... 22
PROGR.......................................................................................................... 23
PG SENSOR ................................................................................................. 25
PG SENSOR ................................................................................................. 26
PG CH1.......................................................................................................... 28
PG CH2.......................................................................................................... 30
PG AL/REL .................................................................................................... 31
AL SENSOR .................................................................................................. 32
AL CH1 .......................................................................................................... 34
AL CH2 .......................................................................................................... 34
RELAIS 1....................................................................................................... 35
RELAIS 2....................................................................................................... 37
RELAIS D ...................................................................................................... 38
PG SERIE...................................................................................................... 39
PG PASSW.................................................................................................... 41
MAINT............................................................................................................ 42
CALIBRA ....................................................................................................... 44
Cal sensor...................................................................................................... 45
Chgt sens....................................................................................................... 47
Cal CH1 ......................................................................................................... 48

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Cal CH2 ......................................................................................................... 48
4-20 mA ......................................................................................................... 49
INFOS............................................................................................................ 50
TEST.............................................................................................................. 51
Chapter 4 | Installation.........................................................53
Regulations and operating conditions ........................................................... 53
Pre-installation Hardware Configuration........................................................ 53
Equipment required ....................................................................................... 54
Positioning the detector ................................................................................. 54
Mounting the detector.................................................................................... 54
Power supply ................................................................................................. 55
Preparing the connection cables ................................................................... 56
Wiring............................................................................................................. 57
Transfer curve................................................................................................ 60
Chapter 5 | Wireless Version...............................................61
Purpose.......................................................................................................... 61
Concept.......................................................................................................... 61
Components .................................................................................................. 62
Connection..................................................................................................... 62
Configuration ................................................................................................. 63
Configuring the addresses............................................................................. 64
Start-up.......................................................................................................... 66
Chapter 6 | Operation...........................................................69
Configuring the transmitter ............................................................................ 69
Start-up.......................................................................................................... 70
Gas reading display....................................................................................... 70
Acknowledging an alarm................................................................................ 71
Zeroing........................................................................................................... 72
Gas sensitivity test......................................................................................... 72
Chapter 7 | Pre-installation Hardware Configuration........73
Purpose.......................................................................................................... 73
Access the internal printed circuit board........................................................ 73
Locate the solder pads .................................................................................. 73
Configuring the auxiliary inputs to connect a 2-wire 4-20mA sensor............ 74
Configuring the auxiliary inputs to connect a 3-wire 4-20mA sensor............ 75
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....................................................... 80
Maintaining the remote control ...................................................................... 83
Chapter 10 | Accessories ......................................................85

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Chapter 11 | Replacement Parts ...........................................87
Accessories for the OLCT 80 ........................................................................ 87
Flameproof approved replacement sensors.................................................. 87
Intrinsically-safe approved replacement sensors .......................................... 88
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 ........................................................................... 95
JBus communication specifications............................................................... 99
Chapter 14 | Special instructions for use in explosive
atmospheres and fonctional safety........................................103
General comments ...................................................................................... 103
Warnings...................................................................................................... 103
Requirements for use in dust explosive atmospheres................................. 103
Cable entries................................................................................................ 103
Threaded joints............................................................................................ 103
Limitations of use......................................................................................... 104
Marking........................................................................................................ 105
Chapter 15 | Errors and Faults............................................111

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1 –Overwiew
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Chapter 1 │Overview
Thank you for choosing this OLDHAM 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.
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.
■No business, person or legal entity may assume responsibility on behalf of OLDHAM,
even though they may be involved in the sale of OLDHAM products.
■OLDHAM 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 OLDHAM ACCORDING TO THE
APPLICATION.
Ownership clauses
■The drawings, specifications, and information herein contain confidential information
that is the property of OLDHAM.
■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 OLDHAM equipment, or for any other reason
without the prior written consent of OLDHAM.
Warnings
■This is not a contractual document. OLDHAM 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
OLDHAM, by OLDHAM personnel, or by personnel authorized by OLDHAM.
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.

1 –Overwiew
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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)
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.
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.

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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.

1 –Overwiew
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