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Repair Information
Troubleshooting Menus
CO
2
: Warming up
(DPM/Microstream only)
1
The CO
2
sensor has not
reached its operating
temperature.
1
It takes typically 30
seconds for the sensor to
warm up.
2
Wait for the message to
go away.
CO
2
: Startup
(DPM only)
1
The CO
2
is starting up.
1
Wait for the message to
go away.
Calibration Completed
Successfully
(DPM/Microstream only)
1
Calibration finished and
successful.
/
Not Ready For Calibration
(DPM/Microstream only)
1
Module in unable to
initialize calibration.
1
Repeat calibration
procedure. If problem
persists, contact Technical
Support.
CO
2
: Zeroing...
(DPM/Microstream only)
1
The device is adjusting
the sensor signal to
predefined range for
better measurement.
1
This is normal operation.
Wait for message to
clear.
CO
2
: Zero Failed
(DPM/Microstream only)
1
Signal cannot be adjusted
to predefined range
within zeroing duration.
1
Check the CO
2
connections. After the
sensor's temperature
becomes stabilized,
perform a zero
calibration again. If
problem persists, contact
Technical Support.
Calibration Error
(DPM/Microstream only)
1
The actual concentration
of calibration gas applied
is in wide discrepancy
with the concentration
value entered by the user
in the Calibration dialog.
1
Make sure the
concentration value
entered is the same as the
calibration gas applied.
2
Repeat calibration
procedure. If problem
persists, contact Technical
Support.
Caused by no gas or wrong
gas concentration
(Microstream only)
1
No gas or wrong gas
concentration.
1
Check the gas
connections or gas
concentration. Repeat
calibration procedure. If
problem persists, contact
Technical Support.
Caused by Measurement Error
(Microstream only)
1
Measurement Error
1
Repeat calibration
procedure. If problem
persists, contact Technical
Support.
Caused by no stable gas flow
(Microstream only)
1
No stable gas flow
1
Check the gas
connections or gas
concentration. Repeat
calibration procedure. If
problem persists, contact
Technical Support.
MESSAGE/ PROBLEM
REASON
SOLUTION