3M™ PROTÉGÉ SG
PORTABLE, REUSABLE, SINGLE-GAS MONITOR
MAINTENANCE
087-0065, Rev D/February 2019
6-6
2. Using a Philips screwdriver, unscrew and remove the three (3) M2.5 X 12 screws from the back of
).
Figure 6-4: Sensor Access
3. Lift and firmly pull the sensor cover apart. Do not pull apart at an angle or by twisting.
4. Pull the sensor straight out.
5. Insert the replacement sensor using the Alignment System (see
).
NOTE: The torque of the screwdriver should be 3 to 4 inch-pounds to loosen or tighten the
screws.
NOTE: Each sensor has a small PCB tab that extends beyond its diameter. Ensure the tabs
align with the small slots of sensor cavities.
M2.5 x 10
Screws
Sensor
Cover
Sensor
