Calibration Procedure; Start Calibration; Auto Zero And Oxygen Sensor Calibration - BW Technologies GasAlertMax User Manual

Gas detector
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GasAlertMax
User Manual

Calibration Procedure

To calibrate the detector and set its alarm setpoints, perform
the following 6-step procedure.

Start Calibration

To quit at any point after auto zero, press F. The detector
retains any saved values, and the audible alarm beeps four
times before the detector returns to normal operation.
1.
Press C and H simultaneously.
The display shows:
The audible alarm beeps once.
26

Auto Zero and Oxygen Sensor Calibration

The display flashes "auto zero" while the detector
automatically zeroes the H
calibrates the oxygen sensor.
The audible alarm then beeps twice.
Auto Zero
Do not apply the calibration gas until the display shows a
flashing gas cylinder; otherwise, the auto zero step will
fail.
If a sensor fails, the display advises error (ERR) and
skips the span for the failed sensor(s). Other sensors
span normally. Press F to exit. Then restart
calibration in an atmosphere that is clear of the targeted
gases. If the auto zero fails a second time, restart the
detector to test the sensors.
D1430/2
S, CO and LEL sensors and
2
Sensor Fail
Note
English

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