Bump Test - Honeywell Sensepoint XCL Installation Manual

Maintenance

4.5 Bump Test

36
c) Make sure that the reading voltage out returns to zero. If there is
any doubt that the detector is not in fresh air, apply cylinder air.
Otherwise, an alarm may occur.
6. Use the cancel function to return to normal monitoring mode.
If repeated calibration attempts continue to fail, replace the gas sensor
with a new one, and then try again. See Replacing the Sensor on page
37.
This section describes how to perform a bump test. For details about
the mobile app, see Mobile App on page 39.
Bump testing is the process of exposing the gas sensor to a known
concentration of reference gas that is greater than the low alarm
threshold in order to verify the proper operation of the gas detector.
1. Connect your smartphone with the target gas detector via
Bluetooth.
2. Place the detector in inhibit mode by using the inhibit control on the
mobile app.
3. Connect a cylinder of reference gas to the target detector using a
suitable tube connected to the gassing port or the calibration cap.
For details about how to use a calibration cap, see Calibration Cap
on page 32.
4. Connect your smartphone with the target detector via Bluetooth.
5. Apply the bump test gas to the detector.
NOTE
For CO versions operating in UL 2075 alarm mode, apply 100
ppm of carbon monoxide at a flow rate of 300 ml/min for 3
minutes.
6. If the detector fails the bump test, check and if necessary, calibrate
the detector.
NOTE
Perform a bump test at least twice a year.