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MA300TS-0210
8. Error Messages
An error message may display during the self-diagnosis during use. Check the details of the displayed error, and
troubleshoot with the following actions.
Symptom
Confirmation
Action
Sensor error
The sensor output is unstable
during span calibration or zero
calibration.
The sensor output is unstable
during measurement.
The ambient temperature has
changed drastically.
The oxygen sensor
membrane is damaged.
Is the oxygen sensor correctly
mounted?
Securely connect the oxygen sensor
(WA-BRM5) to “DO IN” on the back panel of
the PACK MASTER. (Refer to page 5.)
Has the temperature of the
measurement environment
changed drastically? (Temperature
difference between storage site
and measurement site,
temperature change caused by air
conditioning, etc.)
The device cannot be calibrated correctly if
the temperature changes drastically.
Calibrate the span after allowing the
temperature to stabilize sufficiently in a stable
ambient temperature, such as before turning
on the air conditioning.
Was the membrane on the tip of
the oxygen sensor facing upward
when calibrating the span?
Point the membrane on the tip of the oxygen
sensor downward or to the side when
calibrating the span.
Was stabilizing time taken after
replacing the oxygen sensor
membrane and electrolytic
solution?
When the membrane and electrolytic solution
have been replaced, the membrane tension
is not stable, so allow the membrane to settle
for several hours to 12 hours. Calibrate after
this stabilizing time.
Is the oxygen sensor’s membrane
surface damaged or wrinkled,
etc.?
Refer to the “Maintenance Guide” enclosed
with the oxygen sensor and replace the
membrane and electrolytic solution with new
ones. After replacing, allow the parts to
stabilize for several hours to 12 hours or
more, and then calibrate.
Is the membrane on the tip of the
oxygen sensor contaminated?
Clean the oxygen sensor and remove the
contaminants. (Refer to section “6.
Maintenance (1) Cleaning after
measurement” on page 16.)
If the contaminants cannot be removed,
replace the membrane and electrolytic
solution with new ones. After replacing, allow
the parts to stabilize for several hours to 12
hours or more, and then calibrate.
Is the oxygen sensor being used
after being suspended for a long
time (several months)?
The oxygen sensor membrane and
electrolytic solution may be degraded.
Replace the membrane and electrolytic
solution with new ones. After replacing, allow
the sensor to stabilize for several hours to 12
hours or more, and then calibrate it.
If the symptoms do not improve
after taking the above actions, the
oxygen sensor may have reached
its life.
Order a new oxygen sensor and replace the
old one.
If the symptoms do not improve
even after replacing the oxygen
sensor, the main unit may be
faulty.
Make a request for repairs.
If any other error message is displayed, refer to “Error Messages” section in the PACK MASTER Operation Manual.
