2. Important Safety Information 2-3. Caution information
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CAUTION
Oxygen sensor
Do not expose the product to sudden pressure fluctuations. Oxygen readings will fluctuate briefly, preventing
accurate measurement.
Do not use any gas other than nitrogen as the balance gas. Otherwise, oxygen reading errors will increase,
preventing accurate measurement.
CAUTION
Calibration
Calibration of hydrogen gas may become impossible when the product is used or stored for extended periods in
dry environments.
If [FAIL A-CAL] (calibration abnormality) appears during hydrogen sensitivity calibration, leave the product
overnight or longer in a location with sufficient humidity, then perform calibration once again. If it is not possible to
perform CO sensitivity calibration, contact Riken Keiki to request sensor replacement.
CAUTION
Avoid using the product continuously for extended periods (one day or longer) under a low temperature
environment (below −20 C) or storing it under such environment.
OX
C
C-
C
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