Honeywell BW MaxXT II User Manual

Auto Span
When auto zero is complete, APPLY GAS and display, and flashes.
1. Connect the calibration hose to the regulator on the gas cylinder (See "Connecting
the Gas Cylinder to the Detector" on page72 for more information.).
2. Attach the hose quick connector to the pump quick connector to apply gas.
After 50% of the gas is detected on all sensors (within 30 seconds),
continues to flash while the detector completes the span (approximately 2 minutes).
Successful Span
If the sensors have successfully passed the span, the audible alarm beeps and continues with
calibration. Proceed toSee "Calibration Due Date" on page78 for more information..
Unsuccessful Span
If the sensor(s) fails the span, the following screen displays.
Refer to the following for possible causes and solutions.
The detector will not span a sensor if
l gas is not applied to the sensor,
l 50% of the expected gas concentration is not detected within the first 30 seconds,
or
BW MaxXT II 76 User Manual

Honeywell BW MaxXT II Specifications

General

Brand	Honeywell
Model	BW MaxXT II
Category	Gas Detectors
Language	English