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INSTRUCTION MANUAL (ATEX)

BExS120D and BExS110D

Flameproof Sounders

1)

Introduction

The BExS120D and BExS110D are second generation
flameproof sounders which are certified to the European
Standards EN 50014: 1992 and EN 50018: 1994 and meet
the requirements of the ATEX directive 94/9/EC. The
sounders produce loud warning signals and can be used in
hazardous areas where potentially flammable atmospheres
may be present. Thirty-two different first stage alarm sounds
can be selected by internal switches, and each one can be
externally changed to a second or third stage alarm sound
(

see tone table on Page 4

). The BExS120D unit produces

output levels in the 117dB(A) range and the BExS110D unit
produces output levels in the 110dB(A) range. Both sounders
can be used in Zone 1 and Zone 2 areas with gases in
groups IIA, IIB and IIC and temperature Classifications of T1,
T2, T3 and T4.

2)

Marking

All units have a rating label, which carries the following
important information:-

Unit Type No.

BExS120D or BExS110D

Input Voltage:

DC Units

12V or 24V or 48V

AC Units

230V or 110V or 115V

Code:

EEx d IIC T4 (T

amb

. –50 to +55

°

C)

Certificate No.

KEMA 99ATEX6312

Warnings:

DO NOT OPEN WHEN AN EXPLOSIVE

GAS ATMOSPHERE IS PRESENT

COVER BOLTS CLASS A4-80

USE HEAT RESISTING CABLES AND CABLE GLANDS

(Rated 95ºC) AT AMB. TEMPERATURES OVER 40ºC

Year of Construction /
Serial No.

i.e. 02 / 1S21000001

3)

Type Approval Standards

The sounders have an EC Type examination certificate
issued by KEMA and have been approved to the following
standards:-

EN 50014 : 1992 + prA1

General Requirements

EN 50018 : 1994 + prA1

Flameproof Enclosure ‘d’

4)

Installation Requirements

The sounders must be installed in accordance with the latest
issues

of

the

relevant

parts

of

the

BS

EN 60079

specifications

or

the

equivalent

IEC

specifications

Selection,

Installation

and

maintenance

of

electrical

apparatus for use in potentially explosive atmospheres (other
than mining applications or explosive processing and
manufacture):-

BS EN 60079-14 : 1997

Electrical Installations in Hazardous
Areas (other than mines)

BS EN 60079-10 : 1996

Classification of Hazardous Areas

The installation of the units must also be in accordance with
any local codes that may apply and should only be carried
out by a competent electrical engineer who has the
necessary training.

5)

Zones, Gas Group, Category and Temperature
Classification

The BExS120D and BExS110D sounders have been certified
EEx d IIC T4 (Tamb. –50 to +55ºC). This means that the units
can be installed in locations with the following conditions:-

Area Classification:

Zone 1

Explosive gas air mixture likely to occur in
normal operation.

Zone 2

Explosive gas air mixture not likely to occur,
and if it does, it will only exist for a short time.

Gas Groupings:

Group IIA

Propane

Group IIB

Ethylene

Group IIC

Hydrogen and Acetylene

Equipment Category:

2G

Temperature Classification:

T1

400

o

C

T2

300

o

C

T3

200

o

C

T4

135

o

C

Ambient Temperature Range:

-50

°

C to +55

°

C

6)

Sounder Location and Mounting

The location of the sounders should be made with due regard
to the area over which the warning signal must be audible.
The sounders should only be fixed to services that can carry
the weight of the unit.

The sounder should be securely bolted to a suitable surface
using the 7mm diameter boltholes in the stainless steel U

0344

II 2G

Epsilon x:
Gas Group and
Category:

CE Marking:
Notified Body No.

Содержание BEXS110D

Страница 1: ...Supplied by Call us on 44 0 118 916 9420 Email info 247able com com Installation Maintenance Instructions BEXS110D BEXS120D ...

Страница 2: ...ley Reading Berkshire RG6 4UT UK Tel 44 0 118 9311188 Email info able co uk Aberdeen Office Unit 6 Airside Business Park Kirkhill Industrial Estate Dyce Aberdeen AB21 0GT UK Tel 44 0 1224 725999 Email ab able co uk Internet www able co uk e procurement www 247able com Registered in England No 01851002 VAT No GB 417 2481 61 ...

Страница 3: ...of Enclosure d 4 Installation Requirements The sounders must be installed in accordance with the latest issues of the relevant parts of the BS EN 60079 specifications or the equivalent IEC specifications Selection Installation and maintenance of electrical apparatus for use in potentially explosive atmospheres other than mining applications or explosive processing and manufacture BS EN 60079 14 19...

Страница 4: ...hat a suitable power supply is used to run the sounders The power supply selected must have the necessary capacity to provide the input current to all of the sounders connected to the system The following table shows the input current taken by the various sounder units Unit Type Input Input Max Voltage Current I P Volts BExS120D 24V DC 800mA 30V BExS120D 12V DC 850mA 15V BExS120D 48V DC 420mA 58V ...

Страница 5: ... one cable entry is used the other one must be closed with an Ex d flameproof blanking plug which must be suitably approved for the installation requirements 13 Cable Connections The cable connections are made into the terminal blocks on the electronic pcb assembly located in the flameproof enclosure See section 8 of this manual for access to the flameproof enclosure On the AC units a two way term...

Страница 6: ... or an end of line monitoring resistor can be connected across the ve and ve terminals If an end of line resistor is used it must have a minimum resistance value of 3k3 ohms and a minimum wattage of 0 5 watts or a minimum resistance value of 500 ohms and a min wattage of 2 watts TONE SELECTION TABLE Tone Selection DIP Switch Settings Stage Selection Stage 1 Frequency Description 1 2 3 4 5 Stage 2 ...

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