Honeywell BW GasAlertMicro User Manual page 74

GasAlertMicro
User Manual
Problem
The detector does not enter alarm.
The detector intermittently enters alarm
without apparent reason.
The detector automatically shuts off.
The detector displays: IntErnAL cLock
hAS FAiLEed
64
Table 16. Troubleshooting Tips (cont.)
Possible Cause
→
Alarm setpoint(s) are set incorrectly
→ Alarm setpoint(s) set to zero
→ Detector is in calibration mode
→
Ambient gas levels are near alarm
setpoint or the sensor is exposed to
a puff of the target gas
→ Alarms set incorrectly
→ Missing or faulty sensor
→ Automatic shutdown feature
activated due to weak batteries
→ General fault
Solution
→
Reset alarm setpoints (see
Calibration and Setting Alarm
Setpoints)
→ Reset alarm setpoints (see
Calibration and Setting Alarm
Setpoints)
→ Complete the calibration procedure
→
Detector is operating normally. Use
caution in suspect areas. Check
maximum gas exposure reading.
→ Reset alarm setpoints (see
Calibration and Setting Alarm
Setpoints)
→
Replace sensor (see Replacing a
Sensor or Sensor Filter)
→ Replace batteries (see
the Batteries)
→ Contact BW Technologies
Replacing