BW Technologies GasAlert Extreme User Manual download pdf (Page 54)

GasAlert Extreme

User Manual

4. Remove the PCB.

5. Replace the sensor.

Gently rock the sensor back and forth to remove a tightly held

sensor.

Note

Allow the new sensor 5 minutes to stabilize before use. For a

new ETO or NO sensor, allow the new sensor 2 hours to stabi-

lize before use.

6. Re-assemble the detector. When assembling the detector be

aware of the following:

• Clean the seal on the front and rear shells with a soft damp

clean cloth. Do not use solvents, soaps, or polishes. Refer to

Figures 5 and 6.

• Ensure the front and rear shells are properly aligned to ensure

a proper environmental seal.

• Torque the screws to 3-4 in-lbs in a crisscross pattern to

ensure a proper environmental seal. Do not overtighten.

Cleaning a Sensor Screen

Clean or replace the sensor screen as required. If replacement sensor

screens are required, refer to Replacement Parts and Accessories

To clean a removed sensor screen, complete the following. Refer to Fig-

ures 4, 5, and 6 and Tables 11, 12, and 13.

1. Deactivate the detector.

2. Remove the four machine screws on the rear shell and remove

the rear shell.

3. Remove the two machine screws from the PCB.

4. Remove the PCB. Place the PCB on a clean surface.

5. Remove the screen.

6. Using a soft, clean brush, wash the screen with clean, warm

water.

7. Insert the sensor screen with the shiny side facing the sensor

grill.

Note

Ensure the screen is dry before inserting back into the detec-

tor.

8. Re-assemble the detector. When assembling the detector be

aware of the following:

• When inserting the sensor screen back into the detector,

ensure the sensor screen is inserted with the shiny side facing

the sensor grill.

• Clean the seal around the edge of the front and rear shells with

a soft damp clean cloth. Do not use solvents, soaps, or pol-

ishes. Refer to Figures 5 and 6.

• Ensure the front and rear shells are properly aligned to guaran-

tee a proper environmental seal.

• Torque the screws to 3-4 in-lbs in a crisscross pattern to

ensure a proper environmental seal. Do not overtighten.

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BW Technologies GasAlert Extreme User Manual Page 54

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