Replacing The Sensors - BW Technologies Quattro Technical Reference Manual

GasAlertQuattro
Technical Reference Guide

Replacing the Sensors

To avoid personal injury and/or property damage, use
only sensors that are specifically designed for the
detector. Refer to Replacement Parts and
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
To replace a sensor or sensor filter, refer to the following steps 1-10
and Figure 23..
Detectors that are configured for 1, 2, or 3 gases, may contain
a dummy sensor in one of the four sensor locations.
62
a Warning
Accessories.
a Caution
Contaminants.
Note
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.
When a new sensor has been inserted, the detector may enter
alarm when the detector is activated.
Note