E2S IS-CP4A-BG Instruction Manual

8) Testing unit operation
The break glass unit can be tested without the
need to break/replace the frangible glass element.
A test key (7mm Allen key) is used to mechanically
drop the glass down activating the switch.
The test key is inserted in the test cam and rotated
clockwise by an angle of 60º the glass element will
visibly drop down in the viewable window.
The call point switch will now change over it's
contacts to operate the alarm.
Once testing is complete the unit needs to be
reset, the test key is rotated back anticlockwise by
an angle of 60º back to its original position. The
glass element should now raise up so it is level
again in the viewable window.
1. 2. 3.
Insert test Hold in Rotate back
Key rotate position anticlockwise
clockwise during to reset
60º test
9) Replacement of glass element
If the break glass unit has been operated the
broken glass element can be quickly replaced.
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document D150-00-501-IS Issue 6 11-08-22
The break glass cover plate is removed by
unscrewing the 4 off M4 cap head screws attaching
it.
Once cover is removed the broken glass will be
free to be removed, clean out any other fragments
of glass carefully.
To fit the new glass element rotate the top cam
clockwise by an angle of 50º (use a 6mm Allen
key) this will than allow the glass to fit back into the
pocket it sits in, resting on the pivot point and test
cam, release the top cam to rest on the top of the
glass element.
Pivot point Test Cam Top Cam (rotate)
Replace the cover plate and tighten the 4 off M4
cap head screws.
Ensure the glass element is free to move under the
cover plate. This can be done by running through
the units test operation. See section 8 of this
instruction manual.
IS-CP4A-BG Break Glass Manual Call Point
For use in Flammable Gas and Dust Atmospheres
IS-CP4A-BG
Manual Call Point – Break Glass
For use in Flammable Gas and
Combustible Dust Atmospheres.
1) Introduction
The IS-CP4A-BG is a break glass manual call point
which is certified intrinsically safe to the European
and International Gas and Dust standards. The unit
meets the requirements of the ATEX directive
2014/34/EU and IECEx scheme.
The call point can be used in hazardous areas
where potentially flammable gas and dust
atmospheres may be present.
The IS-CP4A-BG has no monitoring resistors. The
units are Group II, EPL (equipment protection
level) Ga. The equipment is certified 'Ex ia IIC T6
Ga' and as such may be used in Zones 0, 1 and 2
with flammable gases and vapours with gas groups
IIA, IIB & IIC and temperature classes T1, T2, T3,
T4, T5 and T6.
These units are also Group III, EPL Db. The
equipment is certified 'Ex t IIIC T60ºC Db' and as
such may be used in Zones 21 and 22 for
combustible dusts groups IIIA, IIIB & IIIC.
The equipment needs to be installed with ATEX
and/or IECEx certified Zener Barriers or Galvanic
Isolators
Sheet 1 of 2
INSTRUCTION MANUAL
2) Marking
All units have a rating label, which carries the
following important information:-
Unit Type No.:
IS-CP4A-BG Manual Call Point
Code:
Ex ia IIC T6 Ga
Ex tb IIIC T60ºC Db
IP66
–40ºC <= Ta <= +55ºC
Input Voltage: Dust Protection Ex tb
AC voltage 250V Max Current 5.0A Max
DC voltage 56V Max Current 1.0A Max
Input Voltage: Gas Protection Ex ia
Ui=30V Ii=500mA Pi=1.1W Ci=0 Li-0
Certificate No.:
SIRA 09ATEX2287X
IECEx SIR 09.0122X
CSAE 21UKEX2555X
Epsilon x: II 1G2D
CE Marking
Notified 2813
Body No.
UKCA Marking
Notified Body No. 0518
Year/Serial No. i.e. 10/1CP4ABG000001
WARNING - DO NOT OPEN WHEN AN
EXPLOSIVE ATMOSPHERE MAY BE PRESENT
3) Type Approval Standards
The beacon has an EC Type examination
certificate issued by SIRA and have been approved
to the following standards:-
EN IEC 60079-0:2018 / IEC 60079-0:2017
EN 60079-11:2012 / IEC 60079-11:2011
IEC 60079-26:2014
EN 60079-31:2014 / IEC 60079-31:2013
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