Instructions for use Perseus A500 SW 2.0n 191
Troubleshooting
Alarm – Cause – Remedy
Alarm messages are displayed in hierarchal form
in the alarm message field of the header bar, see
page 140.
Different background colors indicate the priority
levels of the alarms.
In the Current alarms table and Alarm history
table, the priority of the alarm messages is also
indicated by exclamation marks.
In order to classify the alarms within an alarm
priority, internal priority numbers are given in the
table below. The most critical alarm is given the
number 255. Lower numbers indicate a lower
alarm priority.
The following table lists the alarm messages in
alphabetical order. If an alarm occurs, the table
helps to quickly identify causes and remedies. The
possible causes and remedial measures should be
looked through in the order they are listed until the
alarm is resolved.
Some alarms appear in this table several times
with different priorities because their priority may
change under certain conditions, see page 144.
High !!! Red
Medium !! Yellow
Low ! Cyan
Priority Alarm Cause Remedy
! 100 Absorber disconnected? Infinity ID CLIC absorber is
not correctly connected.
Check absorber.
Use "ALARM RESET" to
acknowledge alarm.
!! 100 "Add. O
2" activated O2 switch is set to "Add. O2". Close the flow control valve of
the O
2 flowmeter. Set the O2
switch to "Aux. O
2".
Use "ALARM RESET" to
downgrade alarm priority.
! 255 Agent measurement failed There is electromagnetic
interference.
Check for electromagnetic
radiation in the vicinity.
There is an internal failure. Use an alternative gas mea-
surement system.
If the problem persists, call
DrägerService.
! 255 Agent measurement not
available
The ambient air used for cali-
brating the sensor was
impure.
Position the device in an envi-
ronment with clean ambient
air.
Wait for the automatic calibra-
tion.
There is electromagnetic
interference.
Check for electromagnetic
radiation in the vicinity.
Ambient temperature is too
high.
Check ambient conditions.
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