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European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH www.e2s.com Tel: +44 (0)208 743 8880
Document No. D202-00-501-IS
Issue 1 28-01-2024 Sheet 6 of 9
position. The glass element should now raise up so it is level
again (horizontal) in the viewable window.
1. 2. 3.
Insert test
Hold in Rotate back
Key rotate
position anticlockwise
clockwise
during to reset
60º
test
13) Replacement of glass element
If the break glass unit has been operated the broken glass
element can be quickly replaced.
The break glass cover plate is removed by unscrewing the 4
off M4 cap head screws attaching it.
Once the 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 test cam clockwise by
an angle of 90º (use test key supplied) this will than allow the
glass to fit back into the pocket it sits in, resting on the pivot
point and test cam, ensure the plunger shaft is resting on the
top of the glass, it might need to be pushed up slightly to
achieve this.
Pivot point Test Cam Plunger Rotate test cam back
Shaft
Upright set point
Whilst lightly holding the glass in place rotate the test cam
back anticlockwise 90º to its original vertical position. The
glass element should now raise up so it is level again
(horizontal) in the viewable window.
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 12 of this instruction manual.
14) End-of-Line and Series Devices
All GNExCP7-BG-IR models can be fitted with series / end-
of-line monitoring resistors, monitoring diodes and Zener and
also LED options into the terminals of the units with the PCB
terminal option.
Min. device values and current limitations must be observed
depending on supply voltage and type of components fitted.
If a combination of resistors / diodes / zener diodes or LED is
used, values for all components must be observed and
lowest current limit for either component becomes overall
limit.
Current limitation for units fitted with end-of-line or series
resistors, diodes or zener diodes must be ensured by using a
current limited power supply or fitting a current limiting
resistor at the control panel (not provided).
When fitting EOL or series device into the applicable terminal
ensure the component is bent to the following specification to
ensure the correct creepage and clearance is maintained.
Depending on the wiring option required either of these
component lead bending configurations is suitable.
EOL or Series device
EOL only for alternative EOL wiring
Component Lead Bending
Component Lead Bending
