2-1
2
OPERATION
2.1 OPERATING PROCEDURE
Before use, check the following:
• The instrument is clean and in good condition.
• The battery pack is in good condition, fully charged and
tted correctly.
• The hydrophobic lter is clean and in good condition.
• The sample line and any other accessories are in good
condition and leak-free.
• All gas ranges are operational and the instrument is
zeroed.
• The instrument is within the calibration period.
Each time you use the instrument, carry out the following
procedure:
• Switch instrument on in fresh air and check that the battery
pack is charged.
• Check there are no faults.
• Attach optional accessories, as required.
• If oxygen sensor is tted, check oxygen readings to ensure
correct operation. The oxygen sensor responds to the
user breathing on the instrument front grille by displaying
a decreased value, i.e. below 20.9%.
• Switch the instrument off, in fresh air, after use.
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