3. Here we can make changes to how the beam behaves. Press
enter
to go into
mode change
and the sub menus.
Threshold
. Use the
right
and
left
keys to increase or decrease the beams sensitivity.
It is factory set at 35% (meaning the received signal has to drop by 35% to trigger
the fire relay. This sensitivity can be adjusted between
25% (sensitive)
and
50% (less
sensitive)
(press
enter
to return to
mode change
or
down
to go to
time to fire
).
Time to fire
. Here we can adjust how long the beam has to be in fire before the fire
relay is triggered. This is factory set at 10s, you may want to increase this if there is
something that may momentarily obscure the beam path (birds / forklift truck) this
can be adjusted between
2
and
30 seconds
by using the
right
and
left
keys (press
enter
to return to
mode change
or
down
to go to
time to fault
).
Time to fault.
Here we can adjust the time to fault between
2
and
60 seconds
(factory set at
10 seconds
). For a beam to go into fault the beam path must be totally
blocked within
ONE
second. By using the
right
and
left
keys (press
enter
to return to
mode
change
or
down
to go to
auto reset
).
Auto reset
. The beam is factory set to
auto reset
when the received signal raises
above the fire threshold
hysteresis
. This can be set to latching if your system requires
this. Change by using the
right
and
left
keys (press
enter
to return to
mode change
or
down
to go to
align on / off
).
Align on / off
. You may want to turn the auto alignment function off, for example,
in an environment that often gets filled with welding smoke, the auto align function
kicks in when the received signal drops below
90%
, the point that the beam
automatically checks for building movement. The beam will try to align through the
smoke which could be a problem if it is unable to see the edges of the reflector. Use
the
right
and
left
keys to turn off and on. When turning this function off extra care
should be taken to ensure that the beam head is on a sturdy fixing ie., brick wall or
major structural steel.
Auto alignment
will still function in
commissioning
(press
enter
to return to
mode
change
or
down
to go to
align time
).
Align time
. This is factory set to 4hrs, you can adjust this, by using the
right
and
left
keys, between
0
to
12 hours
depending on your environment (press
enter
to return to
mode change
or
down
to go to
green flashing light
).
enter
Mode Change
Threshold
Time to fire
Time to fault
Auto reset
Align On/Off
Align Time
enter
