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Warning messages
Message
Probable cause
Solution
W1: Unstable reference
pressure.
The variation of reference pressure is
too high.
Check the pressure stability of the input
reference gas.
W2: Unmatched package
size.
The measured package height is
different from the value defined in the
package definition.
Check the package size definition.
W4: Measurement timeout.
Accuracy of dissolved
O2 not guaranteed.
The measurement pressure is lower
than 3.5 bar.
Check the black seal on the piercing
unit.
Check the purge gas pressure.
Check the forcing gas pressure.
Check the Goretex filter.
Gas path not airtight.
Check the airtightness of the gas path
between the piercing unit and the
measurement chamber.
W10: No message
displayed.
A spontaneous and/or too fast
degassing has occurred.
Restart the measurement with another
package.
The package (especially in the case of
cans) is losing pressure due to a leak.
Verify the package is leak free i.e.
watertight and airtight.
The sensor has become unstable.
Perform an oxygen sensor maintenance
procedure.
W20: Measurement process
incomplete. Insufficient initial
package pressure.
The pressure in the package is too low
to continue with a measurement.
Restart the measurement with another
package.
W40: No message
displayed.
A spontaneous degassing is detected
at the end of the first expansion.
Restart the measurement with another
package.
W80: Measurement process
incomplete. Insufficient
package pressure during
ultrasound stage.
The measured pressure is too low to
compute the second phase of the
measurement.
Check foam intrusion in the gas path.
Check Goretex filter.
W100: No message
displayed.
Possible problem with instrument
configuration.
Contact your Hach Lange
representative to analyze the problem.
W200: No message
displayed.
Possible problem with instrument
configuration.
Contact your Hach Lange
representative to analyze the problem.
W400: No message
displayed.
True CO2 may not be reliable due to
CO2 purge gas purity out of
specification.
Check gas cylinder purity, tubing and
connections to 6110 and recalibrate
CO2 sensor.
W1000: No message
displayed.
Possible problem with instrument
configuration.
Contact your Hach Lange
representative to analyze the problem.
Measurement problems
Observation
Explanation
Negative TPO results.
CO
2
purge gas is not of the required purity of > 99.9%.
Bad headspace volume computed.
The instrument never reaches
the threshold value.
CO
2
purge gas is not of the required purity of > 99.9%.
There is a leak with the CO
2
gas supply.
English
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Содержание ORBISPHERE 6110
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