Hochiki FB-1 User Manual
Page 17
ESP FIREbeam – Installation Manual
Page 17 of 19
2011 Hochiki Europe (UK) Ltd
2-3-0-1340/ISS2/DEC11
3.3.4 Beam
Maintenance
Press
enter
to go into the ‘Beam Maintenance’ menu and access the
sub menus.
Dirt Comp
- This screen shows how much the beam has compensated
for dust build-up on the beam head and reflectors, ALWAYS take a note of
this value as part of your routine maintenance to see any build-up pattern.
If you see figures above +50% you should clean both the lens face and
the reflectors (once cleaned you should instigate an auto alignment to re-
calibrate the beams settings). It is possible that you may see a negative
number here, this can happen when the ESP FIREbeam has been
commissioned in a ‘dirty’ atmosphere such as builders dust which, once
cleared, the beam then compensates for. To reset, perform an auto
alignment to re-calibrate the beam. Press
enter
to return to ‘Beam
Maintenance’ or
down
to go to ‘Alarm & Fault Event Counts’.
Alarm & Fault Event Counts
- Here we can see how many times the
beam has gone into fire or fault since the beam was commissioned or
since the event log was last cleared.
Press
enter
to clear events.
Press
left / back
to return to ‘Beam Maintenance’ or
down
to go to
‘Self Test’.
Self Test
Press
enter
to perform a fire test, this works by running a test algorithm
to lower the output power, the receiver sees this as obscuration. When
the received signal drops below the threshold point the beam will trip the
fire relay – this relay will not trip until the time to fire has passed which
could be anything between 2 and 30 seconds.
Press
left / back
to end test, the fire test should show on the panel.
Press
left / back
to return to beam maintenance or
down
to go to
‘On/Off’.
On/Off
If something needs to be maintained in the beam path use the
right
and
left
keys to turn the system on and off. This will show as a fault on the
panel. Press
enter
to return to ‘Beam Maintenance’.