70
-
TBD
©
2007-2020
A
LL RIGHTS RESERVED TO
T
ELE
F
IRE
F
IRE AND
G
AS
D
ETECTORS
L
TD
.
R
EVISION
1.11
F
EBRUARY
2020
Page
14 of 19
You can see the number of times the beams was in fault or
alarm mode since the detector was installed or since the
recent event list was erased, including tests.
Press
Enter
to clear events.
Press the left/right arrows to go to
Beam Maintenance
or
the down arrow to go to self-test.
Press
Enter
to conduct self-test. In this screen, an
algorithm test is run to reduce the input power. The
receiver identifies this as blocking, when the received
signal is below a threshold value. The beam activates the
alarm relay. The relay will not be released before the Time
to Fire expires. This value can be between 2-30 seconds.
Press the left/back arrows to end the test.
Fire Test
will be
displayed. Press the left/back arrows to return to
Beam
Maintenance
or down to go to On/Off.
If a maintenance operation has to be done on the beam
path, use the right and left arrows to switch the system on
or off. This will appear as a fault.
Press
Enter
to go to
Beam maintenance
.
Press
Enter
to go to the
Diagnostics screen
.
This screen presents the level of transmitted output power.
This value can be increased or decreased by using the left
and right arrows (press
Enter
to return to
Diagnostics
or
down to go to
RX Sensitivity
).
This screen presents the temperature of the detector head
and the necessary temperature adjustment. Press
Enter
to
return to
Diagnostics.
