BW GasAlert Quattro, Руководство пользователя

Страница: 77 / 93

67
GasAlertQuattro
Maintenance
Replacing the Sensors
a
Warning
To avoid personal injury and/or property damage, use
only sensors that are specifically designed for the
detector. Refer to
Replacement Parts and Accessories .
a
Caution
Each sensor has a high degree of resistance to common
vapors and gases. To clear a sensor, move the detector
to a clean environment and wait 10 to 30 minutes.
To prevent accidental poisoning of sensors, refer to
Table 3. Sensor Poisons and Contaminants .
To replace a sensor or sensor filter, refer to the following steps 1-10
and
Figure 23. .
Note
Detectors that are configured for 1, 2, or 3 gases, may contain
a dummy sensor in one of the four sensor locations.
1. Press and hold
C
to deactivate the detector.
2. Press the release latch and remove the battery pack.
3. Remove the six machine screws from the rear shell.
4. Remove the front shell.
5. Remove the spent sensor(s). Use caution when removing the
sensor(s) to ensure no damage occurs to the LCD.
6. Insert the new sensor(s).
7. Reassemble the detector. Press the front and rear shells
together firmly to ensure a proper seal. Ensure the front and
rear shells have a tight, uniform 1/16 in. (1 mm) seal on all
sides of the detector.
8. Replace the six machine screws using 3-4 in. lbs of torque. Do
not overtighten the screws.
9. Replace the battery pack.
10. New sensors should be calibrated prior to use. Calibrate the
new sensor(s) immediately. Refer to Calibration .
Note
When a new sensor has been inserted, the detector may enter
alarm when the detector is activated.