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Maintenance 6
6.3.1 Error Messages
M
ESSAGE
NEED GOOD CALS
IR ZERO CAL FAIL
[CAUSE]
CALS RESTORED
OR
NEED GOOD CALS
IR UPSC CAL FAIL
[CAUSE]
OLD CALS RESTORED
IR LOW FLOW FAIL
NOTE:
The IR LOW FLOW FAIL message will occur only after the instrument has made 5
attempts (50 seconds each) to capture a level value.
IR CAL SPAN FAIL
NEED GOOD CALS
IR CAL RESTORED
62
Teledyne Analytical Instruments., - Rev. 3
D
ESCRIPTION
The battery backed ram
memory has been lost.
A zero calibration was
attempted and did not
succeed. Cause of the
failure will be displayed.
A span calibration was
attempted and did not
succeed. Cause of the
failure will be displayed.
While a calibration was
attempted, the signal from
the detector drifted in one
direction.
A calibration was
attempted that did not
produce a sufficient
difference between zero
and span gases.
No previous successful
calibration data exists in
memory. Old calibration
data cannot be restored.
A calibration failed for
one of the above reasons.
The data from the most
recent calibration is
restored as the current
value.
IR7000
C
A
ORRECTIVE
CTION
Normal display will return after valid
zero and upscale calibrations have been
performed.
Insufficient cell purge. Increase CAL
DELAY period or purge time.
Check for proper zero gas.
Check sample system for leaks.
Insufficient cell purge. Increase CAL
DELAY period for AUTOmatic
calibrations or increase purge time for
MANUAL calibrations.
Check for proper span gas.
Check sample system for leaks.
Insufficient cell purge. Increase CAL
DELAY period for AUTOmatic
calibrations or increase purge time for
MANUAL calibrations.
Most frequently, this is caused by
attempting a full calibration on the
SAMPLE gas. The instrument will
zero calibrate on your sample gas if
requested to do so!
Check that the SETUP: CAL GAS
value has been set to the labeled value
on the tank of calibration gas.
Memory backup battery is discharged.
Replace.
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