Auto Zero Sensor - Honeywell GasAlert Max XT II User Manual

GasAlertMaxXT II
User Manual
4. Press and hold C while the detector performs the OFF
countdown. Continue to hold C as the detector briefly
deactivates.
The detector then reactivates and performs the calibra-
tion countdown. Continue to hold C until the countdown
is complete.
If C is not held for the entire countdown, the detector will deac-
tivate.

Auto Zero Sensor

Do not apply calibration gas until Apply Gas displays, other-
wise the auto zero function will fail.
44
Note
Note
flashes while the detector automatically zeroes
the combustible and toxic sensors, and calibrates the
oxygen sensor.
When auto zero is complete, the detector beeps two
times.
Auto Zero Successful: If the sensor(s) successfully zeroes, the detec-
tor automatically proceeds to the
Auto Zero Unsuccessful: If a sensor(s) fails auto zero, an error mes-
sage and which sensor(s) failed displays.
To determine the cause and solutions for the failed sensor(s), refer to
Troubleshooting.
Auto Span function.