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GasAlert Extreme

Quick Reference Guide

4. Insert the new battery.

5. 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 Internal Seals of the

GasAlert Extreme.

• 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.

Replacing the Sensor

To replace a sensor, complete the following. Refer to Internal

Parts of the GasAlert Extreme and Internal Seals of the

GasAlert Extreme.

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, non-

conductive surface.

5. Replace the 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 stabilize before use.

6. Re-assemble the detector. When assembling the

detector, perform 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 Internal Seals of the

GasAlert Extreme.

• 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 in the GasAlert Extreme User Manual.

To clean a removed sensor screen, complete the following.

Refer to Internal Parts of the GasAlert Extreme

and Internal

Seals of the GasAlert Extreme.

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.