SPC-ET Mounting Guidelines
Page 3
Hochiki Europe (UK) Ltd
2-3-0-796/ISS6/SEPT13
The Receiver can then be mounted onto
the Interface kit by aligning the four
mounting slots on the rear of the
Receiver with the four mounting hooks
on the mounting bracket and then sliding
the Receiver down gently until it clicks
into place.
The Beam Detector can now be aligned.
The covers on both the Emitter and
Receiver need to be open. The green
polling LED on the Receiver should be
flashing once every 3 seconds, but
please note the units require between 30
and 60 seconds to fully power-up.
Fig.3
Once complete the 4-way DIL switch on the Receiver needs to be set. Bits 1 and 2 are set according to which signal
strength is required; there are three choices available, 25%, 50% and 60%.
Bit 3 can be set to allow the SPC-ET to indicate fault and fire (OFF), or fault only (ON) on a total obscuration of the Beam.
Bit 4 can be set to allow automatic reset (OFF) or manual reset (ON) from a fault condition.
Please note that if the SPC-
ET is set to show a non-latching fault on total obscuration and the SPC-ET beam is blocked for more than 30
minutes then the fault will LATCH. To remove this fault the SPC-ET will need to be powered down, or the
receiver cover will need to be opened and then closed to re-synchronise the receiver with the emitter.
The cover on the Receiver can now be closed (please refer to Fig.5.), this should be done carefully, avoiding the
possibility of moving the SPC-ET out of alignment. Closing the cover on the receiver synchronises the receiver with the
emitter, and then automatically calibrates the signal strength. While synchronisation is being established with the emitter
and while the signal strength is automatically adjusted, the monitor LED (green) and fault LED (yellow) on the receiver
flash at intervals of three seconds.
If the SPC-ET calibrates successfully, the yellow LED will stop flashing and the green LED will continue to flash once
every 3 seconds. It takes about two minutes for fire monitoring to begin after the receiver cover is closed.
During this time, care should be taken not to block the beam. Once this has completed the cover should be locked in
place with the supplied locking screw (please refer to Fig.5).
On the top right of the Receiver there
is a sight hole, when looking through
this the Emitter should be clearly
visible via a small mirror at the back of
the Receiver (please refer to Fig.4.).
If it isn’t, then using the silver
alignment wheels (left wheel horizontal
adjustment, right wheel vertical
adjustment) the Receiver should be
adjusted until the Emitter is clearly
visible.
This procedure should then be
repeated at the Emitter end. Set the
distance switch on the emitter
according to the monitoring distance
required, 5m
– 35m SW1 On , SW2
Off, 20m
– 100m SW1 Off, SW2 Off.
Close the cover, then fasten the
locking screw. Please refer to Fig.5.
Fig.4
