Xtralis ICAM IAS-1, Product Manual

Page: 13 / 36

ICAM by Xtralis IAS-1 Product Guide
www.xtralis.com 7
3 Wiring
For correct operation of the unit it is essential that the case is fully sealed so that air can only be drawn into the
system through the aspirating pipe. For this reason, all wiring must pass through the cable seals provided and
no additional holes should be made. In order to pass a cable through a seal, make a small hole in the centre of
the seal with a pointed implement (e.g. small screwdriver) and then force the cable through the hole into the
box. The small hole should expand to accommodate any cable diameter from 4 to 10 mm (0.16 to 0.43 in.). If
the seal is not airtight, then it may be necessary to use a non-reactive resin or glue to create an airtight seal to
ensure that air is only drawn through the air sampling pipe network.
In order to gain access to the main circuit board for connection of the wiring, remove the display/detector
mounting board which is held in place by the clear top cover. The ribbon cable may be removed from the
connector on the underside of the board to allow the board to be fully removed.
CAUTION:
Care should be taken when removing the board to ensure that the ribbon cable on
the underside is not strained.
WARNING: To prevent risk of electric shock or possible injury from the rotation of the high
performance fan, the system should be isolated from the power supply when the
display board is removed.
Caution:
When installing or servicing the unit, ensure that the operator is safely earthed so as
to prevent electro-static discharge (ESD) damage to the unit.
All connections to the main circuit board are to pluggable terminals that can accommodate wire sizes up to
2.5mm
2
.
3.1 Field Connections
1. 24 VDC input power supply
2. Input power fuse 3. Loop / circuit wiring interface
4. Fault relay terminal
Figure 3-1: Field connectors for an IAS-1 detector