Ramp Differential Expansion Monitor Maintenance
84414-01
•
11
Test Alarms [Cont]
5. Adjust the power supply voltages such that the
differential expansion signal o n the monitor just
exceeds the Long Alert setpoint level and verify that
the Long ALERT LED goes on after the specified
delay period has elapsed (Flashing if the first out
option is selected).
6. Verify that the Alert relay changed state.
7. Press the RESET switch on the system monitor
and verify that the Long ALERT LED remains on
steady.
8. Adjust the power supply voltages such that the
differential expansion signal o n the monitor just
exceeds the Long Danger setpoint level and verify
that the Long DANGER LED goes o n after the
specified delay period has elapsed (Flashing if first
out option is selected).
9. Verify that the Danger relay changed state. The
relay will not change state if the Danger Bypass is
on.
z
DIFFERENTIAL
EXPANSION MONITOR
:d.
A • a r c
•
B
r u DANGER T. T 1 5
•
A L E P T
-
4 4 0 B Y P A S S 1 - 5 - J T
r Y, 5 E r,
• 1_ ER
B,FERED TPAr150LXITA5
F,CRENF ' L
2 0
•
Summary of Contents for 3300/46
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