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 25 of 36
Dry Contact Output Settings
Standard dry contact output is on terminal block “O0”
for General Fault.
Additional dry contact output terminal blocks are
available by special order. Please contact your Powerex
representative for more information.
All digital output signals are Normally Closed.
Maintenance Mode (image toggled)
When Maintenance Mode is toggled, the alarm horn
will not activate during a normal alarm event. This allows
a technician to perform maintenance without setting
off the loud alarm.
Maintenance mode will automatically toggle back to
normal after 15 minutes. A timer is displayed below the
button.
The lower right bar on the home screen that is typically
green and displays “NORMAL” will now be yellow and
display “MAINTENANCE.”
Change Password
To change the password, press the “Change Password”
button, enter the old password, enter the desired new
password, and confirm the desired new password.
Screen saver and brightness settings
The Powerex FirstCall™ Alarm System is factory-set
with a 5 minute screen saver. The screen saver dims
the panel to 10% after 5 minutes. This time limit can
be changed. The boxes to the right show the time
remaining until the screen saver is enabled.
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