Honeywell BW Flex Series User Manual page 23

3. Attach the hose.
4. Follow onscreen instructions.
7. Apply span gas when the sensor slot LEDs start flashing. Span calibration starts after the
detector detects gas. The four sensor slots LEDs flash blue clockwise. After the Span
calibration is completed, the LEDs are solid green if calibration passed, or red if failed.
Note: If sensors fail to detect the gas, or cannot be spanned, repeat the calibration. If the
problem persists, replace the sensor.
8. Remove the calibration cap. The detector starts purging, and the slots LEDs flash in amber
clockwise.
After the purge is complete, the Detector is back to the regular mode.
BW Flex Series 22 User Manual