Oldham CTX 300 CO2 User manual

User manual
CTX 300 CO2
Analogic CO2Gas Detector
Part Number: NP300CO2GB
Revision: B.0
07/2015→
The Fixed Gas Detection Experts

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CTX 300
User manual
Copyright 2016 by Oldham S.A.S.
April 2016
All rights reserved. No reproduction of all or part of this document, in any
form, is 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]

Contents
3
Contents
Chapter 1 | General Information ..............................................5
User Manual...............................................................................................5
Symbols used.............................................................................................5
Safety instructions......................................................................................6
Important information.................................................................................6
Liability limits..............................................................................................7
Chapter 2 | Introduction ...........................................................9
General Information ...................................................................................9
CTX300 CO2versions..............................................................................10
Composition .............................................................................................10
Chapter 3 | Installation and connection................................11
Installing the detectors .............................................................................11
Electrical connections ..............................................................................13
Chapter 4 | Powering up and use ..........................................17
Powering up .............................................................................................17
4-20 mA analog output.............................................................................17
Chapter 5 | Maintenance ........................................................18
Calibration................................................................................................18
Checking the current generator................................................................23
Replacing a sensor ..................................................................................24
Disposal....................................................................................................24
Chapter 6 | Spare parts ..........................................................25
CTX 300 CO2...........................................................................................25
Chapter 7 | Certification .........................................................27

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CTX 300
User manual
Chapter 8 Technical specifications.......................................29
Chapter 9 | Annex...................................................................31
CTX 300 overview....................................................................................31

1 –General information
5
|
Chapter 1 |General Information
User Manual
The instructions given in this manual must be read thoroughly before installation and
start-up, particularly those concerning the points related to the safety of the end-user.
This user manual must be made available to every person involved in the activation,
use, maintenance, and repair of the unit. The information, technical data, and diagrams
contained in this manual are based on the information that is available at a given time.
In case of doubt, contact Oldham for additional information.
The aim of this manual is to supply simple and accurate information to the user.
Oldham cannot be held liable for any misinterpretations in the reading of this manual.
In spite of our efforts to produce an error-free manual, it may nonetheless contain
some unintentional technical inaccuracies.
In the client’s interest, Oldham reserves the right to modify the technical characteristics
of its equipment to increase their performance without prior notice. The present
instructions and their content are the inalienable property of Oldham.
Symbols used
Icon
Significance
This symbol indicates useful additional information.
This symbol indicates:
This equipment must be connected to ground.
This symbol indicates:
Protective earth terminal. A cable of the adequate diameter must be
connected to ground and to the terminal having this symbol.

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CTX 300
User manual
This symbol indicates:
You must refer to the instructions.
This symbol indicates:
Warning! 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.
European Union (and EEA) only. This symbol indicates that this product
must not be discarded with household waste, as per the EEA directive
(2002/96/EC) and your own national regulations.
This product must be disposed of at a collection point that is reserved for
this purpose, for example, an official site for the collection of electrical and
electronic equipment (EEE) in view of their recycling, or a point of
exchange for authorized products that is accessible when you acquire a
new product of the same type.
Any deviation as regards these recommendations for the disposal of this
type of waste can have negative effects on the environment and public
health, as these electric and electronic products generally contain
substances that can be dangerous. Your full cooperation in the proper
disposal of this product promotes a better use of natural resources.
Safety instructions
Labels intended to remind you of the principal precautions of use have been placed on
the unit in the form of pictograms. These labels are considered an integral part of the
unit. If a label falls off or becomes illegible, please ensure it is replaced. The
significance of the labels is detailed below.
The installation and electrical connections must be carried out by qualified
personnel according to the instructions of the manufacturer and the
standards of the competent authorities.
Failure to adhere to the instructions can have serious consequences on the
safety of persons. Please be extremely rigorous as regards electricity and
assembly (coupling, network connections).
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.

1 –General information
7
Liability limits
Neither Oldham nor any other associated company under any circumstances can be
held liable for any damage, including, without limitations, damages for loss or
interruption of manufacture, loss of information, defect of the MX 43 control unit,
injuries, loss of time, financial or material loss, or any direct or indirect consequence of
loss occurring in the context of the use or impossibility of use of the product, even in
the event that Oldham has been informed of such damage.

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CTX 300
User manual

2 - Introduction
9
Chapter 2 |Introduction
General Information
CTX300 CO2gas detectors are designed to measure carbon dioxide. With robust
materials, a specifically-adapted design, appropriate accessories, stainless bolts
and a polyamide case (IP54), CTX 300 detectors are designed to withstand the
roughest conditions.
Figure 1: overview of a CTX 300 with display (left) and without display (right).

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CTX 300
User manual
CTX300 CO2versions
In the case of a CTX 300 for the CO2detection, this manual can only
be used for devices delivered since July 2015.
P/N : 6514879
P/N : 6514880
P/N : 6514881
P/N : 6514882
P/N : 6314124
Figure 2: CTX 300 CO2detector
delivered before July 2015
Figure 3: CTX 300 CO2detector
delivered since July 2015
Composition
Sensor type
CTX 300
Gases
detected
CO2.
Detection
method
Infrared absorption.
Type of sensor
pack
Pre-calibrated removable sensor
pack (1).
Options
With display.
Certification
None
(1) Choice between several scales.