Oldham SV 4B User Manual

Surveyor 4B

Part Number: NPS4BGB
Version: C

The Fixed Gas Detection People

User Manual

3

GAS DETECTION

We are delighted that you have chosen an OLDHAM instrument and would like to thank you for your

choice.

We have taken all the necessary measures to ensure that your instrument provides total satisfaction in the
future.

Now it is important to read this document carefully.

EEXXTTEENNTT OOFF RREESSPPOONNSSIIBBIILLIITTYY

* OLDHAM declines its responsibility towards any person for material damage, physical injury or death resulting

wholly or partly from inappropriate use, installation or storage of its equipment resulting from failure to observe
instructions and warnings and/or standards and regulations in force.

* OLDHAM neither supports nor authorises any company, physical or moral person to assume responsibility on

behalf of OLDHAM, even if it is involved in the sale of OLDHAM products.

* OLDHAM cannot be held responsible for direct or indirect damage or be required to pay direct or indirect

compensation resulting from the sale or use of any of its products IF THESE PRODUCTS HAVE NOT BEEN

DEFINED AND CHOSEN BY OLDHAM FOR THEIR SPECIFIC USE.

CCLLAAUUSSEESS CCOONNCCEERRNNIINNGG PPRROOPPEERRTTYY

* Drawings, plans, specifications and information included in this document contain confidential information that is

the property of OLDHAM.

* None of this information may be reproduced, copied, divulged or translated, by physical, electronic or any other

means, nor used as the basis for the manufacture or sale of OLDHAM equipment or for any other reasons without

prior consent from OLDHAM.

WWAARRNNIINNGGSS

* This document is not contractually binding. In the interests of its customers, OLDHAM reserves to modify the

technical specifications of its equipment without notice, in order to improve its performance.

* READ THIS MANUAL CAREFULLY BEFORE FIRST USE OF THE EQUIPMENT: this manual must be

read by any person who is or will be responsible for using, maintaining or repairing this equipment.

* This equipment will only provide the announced performance levels if it is used, maintained and repaired

according to OLDHAM directives, by OLDHAM personnel or by personnel approved by OLDHAM.

GGUUAARRAANNTTEEEE

2 years guarantee in normal conditions of use on parts and technical labour, return in our workshops, excluding
consumables (sensors, filters, etc.).

4

Warnings

This manual must be read carefully before installing and starting up and, in particular, care
must be taken to observe the points concerning the safety of the equipment for intermediate
or end users.

Installation must be performed and electrical connections made by qualified personnel in
accordance with the manufacturer's instructions and with the standards specified by the
relevant authorities.

Failure to comply with instructions can have serious consequences for the safety of
personnel. An absolutely rigorous approach is required, especially as concerns electricity
and fitting (connections and connection to the power network).

Any modification of the equipment or the use of parts not specified as original
manufacturer's parts could lead to the cancellation of any form of warranty.

The data logger is intended to be used for one or more applications specified in the technical
characteristics.
The values indicated must not be exceeded in any circumstances.

This is not a contractually binding document. In the interest of its customers, OLDHAM
reserves the right to make any changes, without notice, to the technical characteristics of its
equipment in order to improve performance levels.

Warning signs

Protective earth terminal

Caution: risk of electric shocks

Caution (See accompanying documents)

5

Contents

I. DESCRIPTION 7

II. MOUNTING OF THE SURVEYOR 4B 7

III. CONNECTIONS 9

3.1. Alternative power supply 9

3.2. DC power supply 9

3.3. Explosimetric detectors 10

3.4. External components 10

3.5. Examples of installation 11

IV. OPERATING INSTRUCTIONS 12

4.1. Switching on 13

4.2. Switching off 13

4.3. Alarms 13

4.3.1. GAS alarm 13

4.3.2. FAULT alarms 14

4.4. Adjustments 14

4.4.1. Adjusting the "gas alarm" thresholds 15

4.4.2. Acknowledgement of gas alarms 16

4.4.3. Adjusting the ZERO 17

4.4.4. Checking the sensitivity 17

4.5. Replacing the fuse 19

V. TECHNICAL SPECIFICATIONS 21

VI. DISPOSAL 21

VII. EC DECLARATION OF CONFORMITY 22

6

7

I. DESCRIPTION

Surveyor 4B is equipped with a small "NORMAL" box (58 x 105 x 90 mm). It can be snap-fastened
onto a standard symmetrical DIN rail and is easily integrated in an electric equipment cabinet.

The components used in operation are located on the front of the appliance:

- adjustments and tests on the top (item 1),

- indicator lights on the FRONT face (item 2),

- connections at the bottom (item 3).

II. MOUNTING OF THE SURVEYOR 4B

The surveyor 4B appliance fitted on its symmetrical DIN rail can be installed in a box in any
electrical equipment cabinet and has no special installation requirements.

The Surveyor 4B can be installed in safe area only.
It should preferably be located in a monitored location (such as a guardhouse, control room or
instrumentation room).

FIGURE 1

Item 1

Item 2
Item 3

8