FirstCall™ Medical Gas Alarm
Operating & Maintenance Manual
Powerex • 150 Production Drive • Harrison, OH 45030 • USA
P 1.888.769.7979 • F 513.367.3125 • www.powerexinc.com
IN599102AV • 15 September 2020
Page 31 of 36
Troubleshooting Guide
Issue
Possible Cause
Corrective Action
No power
AC Power not available to the
alarm panel
Connect AC power to the alarm panel power supply
Blown fuse at the building
electrical panel
Check the building's primary electrical panel and make sure
the circuit breaker is switched to ON
Alarm panel fuse lever in the
OFF position
Switch the alarm panel fuse lever to the ON position
No audible alarm
Loose wire connection
With the alarm panel circuit breaker in the OFF position,
make sure the wires are properly connected to the horn
Alarm is in Maintenance
Mode
Either wait 15 minutes for Maintenance Mode to
automatically turn off, or go into settings and turn off
Maintenance Mode
Faulty horn
Replace horn (see replacement part list for part number)
Screen is not functioning
Faulty power supply
Replace power supply
Wiring harness
disconnected
Make sure the wiring harness from the power supply and
terminal blocks are properly installed in the back of the PLC
Alarm panel fuse lever in the
OFF position
Switch the alarm panel fuse lever to the ON position
AC power wiring is not
properly connected
Make sure AC wiring is properly installed in the alarm panel
power supply terminals
HMI/PLC is faulty
Replace HMI/PLC. Contact Powerex Technical Service for
additional assistance
“MISSING” alarm on Area
gas badge
Sensor wires not connected
Make sure sensor wires are properly installed in the assigned
terminal blocks
Faulty sensor
Replace sensor (see replacement part list for part number)
Master alarm signals not
displaying
Yellow "SAVE ALARM
CONDITIONS" not pressed
after entering alarm
conditions
Press "SAVE ALARM CONDITIONS" after entering alarm
conditions
Area gas display pressure
reading not matching
gauge on pipeline
Faulty gauge on pipeline
Check gauge on pipeline, replace if faulty
Sensor out of calibration
Adjust the sensor offset using the "TRANSDUCER SETTINGS"
function in the settings menu. Replace sensor if necessary
(see replacement part list for part number
Содержание AAP10-OAV
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