26
Model TA502A
If the set point is reached or exceeded, the
A2
alarm outputs will activate. The
display will indicate the current
A2
alarm set point (Figure 27). Press the Mode/
Select switch repeatedly until the desired
A2
alarm set point appears on the display.
60
is the factory default for this selection.
Figure 27: A2 Alarm Set Point Option
For the acoustic gas leak detectors Observer and Surveyor there is one additional
option. That is the
A2
alarm relay delay. The display will indicate the
A2
relay delay
by the letters
dL
followed by the current delay time in seconds. The factory default
value is 0 seconds. Pressing the Mode/Select switch will increase the delay time by
10 seconds. The maximum value allowed is 600 seconds and pressing the switch
again will set the delay to 0 seconds.
4.4.6 A1 Alarm Options
Next, the
A1
LED on the front panel will be flashing while the Energized/De-
Energized option is displayed (Figure 28).
The display will indicate the current selection, (
En
or
dE
).
De-Energized
is the
factory default for this selection.
