Black & Decker MULTI-GAS DETECTORS Manuel d'utilisateur Page 52

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BW Defender2
If the Detector Does Not Work
41
Table 13. Troubleshooting Tips (cont.)
Problem Possible Cause Solution
Activation self-test fails during one of
the first five steps.
General fault. Contact BW. (See page 2.)
Detector does not display normal
ambient gas reading after activation
self-test.
Sensor not stabilized.
Detector requires calibration.
Target gas is present.
Used sensor: wait 60 seconds
New sensor: wait 5 minutes
Calibrate detector.
Detector is operating properly. Use
caution in suspect areas.
Detector does not respond to
pushbuttons.
Battery is depleted.
Detector is performing operations
that do not require user input.
Replace battery.
Pushbutton operation restored
automatically when the operation
ends.
Detector does not accurately
measure gas.
Detector requires calibration.
Detector is colder/hotter than
ambient gas.
Sensor screen is blocked.
Calibrate sensor.
Allow detector to acquire ambient
temperature before use.
Clean sensor screen.
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