E2S IS-CP4A-PB Instruction Manual

8) Testing unit operation
The push button unit can be tested without the
need to replace any element.
To test, lift the cover lift flap to reveal the push
button. The button should be pressed into the body
to activate the unit and place it into the operated
condition.
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
from the operated condition.
Rotate the push button anticlockwise by an angle
of 55º, see guide alignment marks on button and
cover, shown below (1). The push button should
pop back up to its original position.
Ensure that the push button has also twisted back
clockwise by 55º to its original position see guide
marks on button and cover, shown below (2).
The unit is now reset.
European Safety Systems Ltd. Impress House, Mansell Road, Acton, London W3 7QH
Document D150-00-601-IS Issue 6 11-08-2022
1. On operated unit 2. Button should pop
Twist push button up and twist back to
Anticlockwise 55º original position
to reset
Note: use alignment
marks circled to
indicate the push
button's status
/position.
Unit currently shown
as 'standby
condition'
Resetting an operated unit is the same as resetting
a tested unit.
IS-CP4A-PB Push Button Manual Call Point
For use in Flammable Gas and Dust Atmospheres
IS-CP4A-PB
Manual Call Point – Push Button
For use in Flammable Gas and
Combustible Dust Atmospheres
1) Introduction
The IS-CP4A-PB is a push button 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-PB 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-PB Manual Call Point
Code:
Ex ia IIC T6 Ga
Ex tb IIIC T60 ºC 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. 10/1CP4APB000001
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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