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May 2023
6. Select OK to accept the current date as the calibration date
and continue.
7. Acknowledge the warning. If necessary, remove the loop from
automatic control.
8. When calibrating for H
air, to zero the reading. When calibrating for O
sensor to 0% oxygen concentration calibration gas to be used
as the "zero" calibration value. If the ambient air may contain
trace amounts of target gas or other gases (for example,
carbon monoxide from engine exhaust) that may interfere
with zeroing the device, do the following:
Quick Start Guide
S and CO, expose the sensor to clean
2
Quick Start Guide
, expose the
2
25
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