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Emerson Process Management GmbH & Co. OHG 7-37
Instruction Manual
HASAxE-IM-HS
05/2006
7 Maintenance
Do not expose the sensor to a temperature other than the temperature range
of -20 to +60'C (-4 to +140 F). Exposing to a temperature outside the
temperature range may cause abnormal output or leak of the electrolyte due
to parts degradation or damage.
Make sure to prevent condensation of the oxygen concentration detecting
part. If condensed, the output will lower and response speed will slow down,
disabling accurate concentration measurement. The sensor characteristics
will return to the original characteristics if condensation moisture evaporates
after putting the sensor in dry air several hours to several days.
Do not drop or apply a violent shock or vibration to the sensor. If shocked or
vibrated, the sensor output may temporarily vary or become unstable. The
original sensor condition will usually reset by putting the sensor in a
stationary condition in the atmosphere at a ordinary temperature several
hours to several days. Depending on the degree of a shock or vibration, the
internal sensor structure may break and the sensor may not return to original
condition.
Do not disassemble or repair the sensor. Removing a sensor part or
remodeling the sensor will damage the sensor or leak the electrolyte and
restoration to the original condition may not be possible.
7-4 Replacing the Electrochemical Sensor
7-4-1 Precautions for Sensor Handling
GENERAL HINTS ON HANDLING THE SENSOR