OdaLog
®
Gas Logger User Manual
P/N: 10-1000
Revision: F, Issued: October 2019
Page: 28
SENSOR bAd1:
The sensor response/reliability has been calculated to be LOW, recheck the calibration and
review Section 7 for sensor information.
Span value WILL still be saved
, however
readings may be inaccurate (> ±10%).
SENSOR bAd2:
The sensor response/reliability has been calculated to be VERY LOW, recheck the
calibration and review Section 7 for sensor information.
Span value WILL still be saved
,
however readings may be inaccurate (> ±10%).
FAILED:
The sensor has FAILED the response/reliability test, the sensor requires urgent
replacement before being deployed for use.
Span value WILL NOT be saved
, return to
service centre for repair.
N/A:
If N/A appears on the LCD, there may be a sensor/hardware issue causing readings to fail.
If error persists, return for service. (ERROR 3 may also indicate this issue)
When sensor errors occur during calibration, check the following areas:
If “FAILED” continues to appear, a sensor fault may have been detected and the OdaLog
®
should be
returned for testing/repair at an authorised Thermo Fisher Scientific service centre.
9.8 Span Gas Check – Pre-Use and Post-Use (if required)
9.8.1 Span Gas Check – Pre-Use
Ensure “Use By” date is current on Calibration Mixture Cylinder.
Immediately before placing OdaLog
®
in test area, attach calibration adaptor and calibration mixture
cylinder.
Do not enter “SPAN” mode.
Allow gas to flow at the recommended flow rate and time (or until reading stabilises) as detailed in Table 5.
Record reading. This will be the “Start Level” (note reading in relation to level stated on calibration mixture
cylinder).
9.8.2 Span Gas Check – Post-Use
Immediately after removing OdaLog
®
from a test area, attach calibration adaptor and
same
gas cylinder as
used in 9.8.1 (above).
Do not enter “SPAN” mode
.
Allow gas to flow at the recommended flow rate and time as detailed in Table 5.
Record reading. This will be the “End Level” reading. (Note: reading in relation to level stated on
calibration mixture cylinder).
If the OdaLog
®
has been used in a high gas or high humidity environment, the “Post-Use” calibration span
check may indicate the reading has ‘dropped off’ and is reading low at the end of the test.
If required the logged readings can be adjusted as described in section 9.8.3 (also refer to the “Decay
Compensation” section of the
OdaStat-G™
software package), provided that the start level and end level span
gas check readings have been recorded.
TROUBLESHOOTING CHECKLIST
Calibration level settings in the “Instrument Parameters” section in the software package or
the instruments “STATUS” menu section 6.4.
Appropriate flow through Calibration Gas regulator.
Calibration Gas regulator is turned on.
Sensor Filter is free of obstructions and not ‘clogged’ or covered in any oily residue
Calibration fitting correctly inserted.
Tubing is leak free and not obstructed.
Calibration gas is within “Use-by” date
NOTE
It is recommended that the sensor be replaced when sensor has decayed between
‘bad1’ and ‘bad2’ fault warnings - to maintain reasonable accuracy of logged data.
