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MAN-MAXPRO
REV. B.0.
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5.4
There are three ways to zero the instrument:
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5. CALIBRATION
If a third calibration gas needs to be applied, after
instrument displays "CAL COMPLETE", depress the ON/
OFF button and follow the instructions on the display.
When "CAL COMPLETE" is displayed, remove gas and
turn off gas flow.
Instrument will purge itself while counting down to 0, and
clear memory.
The calibration process is now complete.
ZEROING
Zeroing should be carried out only in a clean air
environment, known to be free of contaminants.
Zeroing is done, automatically, each time the instrument is
calibrated.
Zeroing is done, automatically, each time the instrument is
turned on if the "AUTO ZERO" feature is selected in the
supervisory mode. Please refer to Section 6.6 Auto-
zeroing.
Zeroing may be done manually without doing a full
calibration by entering the calibration mode (please refer to
Section 5.2 Calibration Procedure (when all calibration
gases are in a single canister)) and, anytime while the
instrument is zeroing and counting down from 30 seconds
to 0, depress and hold down the MODE button for at least
3 seconds. Instrument will not immediately exit, but will
complete the zeroing cycle, count down to 0, and then exit
the calibration mode.
CAUTION
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