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The audible warning signal alerts when there is a power failure, temperature alarm condition, or when the
door is ajar for more than 1 minute.
Alarm display codes for high temperature, low temperature, sensor failure, door ajar are mentioned in the
below table
Alarm
code
Trigger
Automatic
clearance
Outputs
Automatic
clearance
“Hi”
Air temperature is
higher than “ALA-
>Hat” for “ALA->Htd”
User
Configured
Blink “Hi” with the highest
temperature; If configured: cut
in alarm relay, beep the buzzer
High
temperature
alarm
“Lo”
Air temperature is
less than “LAt” for
“Ltd”
User
Configured
Blink “Lo” with the lowest
temperature; If configured: cut
in alarm relay, beep the buzzer
Low
temperature
alarm
“dor”
Door open for more
than “ALA->dod”
Always
Blink “dor”. If configured: cut in
alarm relay, beep the buzzer
Door open
alarm
“E01”
“S1” error
Always
Blink “E01”. If configured: cut in
alarm relay, beep the buzzer
“S1” sensor
failure = (short
or open)
“E02”
“S2” error
Always
Blink “E02”. If configured: cut in
alarm relay, beep the buzzer
“S2” sensor
failure = (short
or open)
Alarm Silencing
To mute the power fail alarm, change the key-switch to Power ON position. The power fail alarm will not be
audible but the Red LED will be displayed on the control panel.
The high temperature, low temperature, sensor failure and door ajar alarms can be silenced by pressing any
key on the controller.
When the alarm is active, the alarm code flashes alternately with the temperature and the alarm symbol.
Once the alarm is silenced, the code stops flashing but the temperature and the alarm symbol is still
displayed. No second audible sound occurs once silenced.
