Diagnostics Protection; Connecting The Gas Cylinder To The Detector - Honeywell GasAlert Max XT II User Manual

GasAlertMaxXT II
User Manual

Diagnostics Protection

The detector tests the ambient air (auto-zero) and the test gas that is
applied (auto span) to ensure it meets expected values. Auto-zero sets
the zero-gas level of the sensor. If the target gas is present, the zero
level will be incorrect.
If excessive target gas is present, the sensor(s) will fail and an error
message displays.
In auto span, an error message displays if the target gas does not meet
the expected values.
Sensor(s) that fail to span retain the previous span value and do not
continue the calibration process.
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Connecting the Gas Cylinder to the Detector

Refer to the following procedures and
cylinder to the detector for calibration.
Read all of the following procedures before beginning
calibration.
The maximum hose length for calibration is 3 ft (0.9 m).
1. Verify the calibration gas being used matches the span
concentration value(s) that are set for the detector.
2. Attach a 0.5 l/min regulator or a demand flow regulator to
the gas cylinder.
3. Connect the calibration hose to the regulator on the gas
cylinder.
4. Begin the calibration procedures. Refer to the
Procedure section.
Figure 6. to connect the gas
Note
a Caution
Calibration