34
•
Programs
Ahiba IR User's Guide
Icon
Message
Roll-o-matic Alarm icon.
When the drive motor
stops turning for more than 5 minutes, this icon is
displayed.
Power Interruption icon.
When the power to the unit has been interrupted or
stopped for more than 2 minutes, this icon is
displayed.
Troubleshooting Alerts and Alarms
Below are common alarm combinations that may occur while you are running a
process.
Alert/Alarm
Combination
Message
Possible
Problem
Temperature Sensor
Alarm
•
Continuous buzzer
tone
•
Red temperature
LED displays solid
red
Two different situations trigger this
alarm.
(1) System has detected a beaker
temperature variation of greater than
±
2°C. The icon is displayed on the
screen and a continuous buzzer
tone sounds.
System will attempt to self-correct by
introducing either cool or hot air,
depending on the situation.
When the temperature variation falls
within
±
2°C, the alarm will reset.
The buzzer will stop and the icon will
disappear from the screen.
(2) During a heating or cooling cycle
in the program, the system has
detected a temperature variation of
±
15°C.
The program must be re-started at
step #1 after the problem is
corrected.
Temperature
sensor cable is
unplugged or
defective
Door Open Alarm
•
Continuous buzzer
tone
•
Door Open icon
appears on display
Door has been opened while
process is running
Defect in
door
closed
sensor.
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