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GasAlertClip Extreme English Instruction Sheet 

D2139/7 Page 2  

Trimmed and folded dimensions: 4.125 (w) x 5.875 (h)  

 

Activating the Detector 

Press and hold 

for 5 seconds. 

Note: Once activated the detector cannot be deactivated, except after a 

battery life-ending alarm. Refer to 

Safety Shutdown Mode

Performing a Self Test 

Note: The self-test must be performed in an atmosphere that is free of 

hazardous gas. 

After a self-test is performed, wait 30 seconds before using to ensure 
the detector accurately detects gas. 

The self-test is activated prior to any other function. Prior to each day’s use, 
a self-test of the detector must be performed. 
When 

Test

 displays on the LCD, a self-test is required.  

 

When the self-test is performed and passes, 

u

 displays to confirm the tests 

are successful.  
To perform a self-test, press and hold 

C

 for approximately 1 second. to 

initiate the self-test. Confirm that the following tests are performed: 

1.  The detector emits one beep, one flash, and one vibration. 
2.  All LCD elements display. 

 

 

3. 

Test

 flashes while the sensor integrity and battery life are tested. 

4.  The low and high alarm setpoints display. 

               

 

5.  If an alarm has occurred in the last 24 hours, the LCD displays the 

maximum gas exposure value and the hours that have lapsed since 
the exposure. 

6. 

Prn

 and   flash. 

Note: If a self-test is activated without Test being displayed, steps #1-3 are 

bypassed. 

Self-Test Pass 

When the self-test is successful, the detector emits a short beep and a 
single vibration. 

u

 then displays to verify that the detector passed the self-test. 

 

 

Twenty hours after performing the self-test, 

Test

 displays again to indicate 

that a self-test is required. 

Self-Test Fail 

If the self-test fails, the detector emits five short beeps and flashes before 
displaying a blank screen. The LCD then returns to the normal operating 
screen and again displays 

Test

Repeat the self-test. 

Note: If the self-test fails three consecutive times, the LCD displays a blank 

screen and the detector deactivates. Refer to 

Safety Shutdown Mode

Automatic Battery Test 

The battery is automatically tested every 2 hours. If the battery test fails, 
another automatic test is initiated 30 minutes later. 

Note: After five consecutive battery test failures, the LCD displays a blank 

screen and the detector deactivates. Refer to 

Safety Shutdown Mode

Detector Life-Remaining Clock 

The detector life-remaining clock indicates how much longer the detector 
will operate. The LCD displays the countdown value of the remaining 
months, days, and then hours. 
The detector continues to operate for a maximum of 8 hours after the 
detector life-ending alarm initiates. Press 

C

 to deactivate the detector. For 

more information, refer to 

Alarms

 

Safety Shutdown Mode 

The LCD displays a blank screen when initiating safety shutdown mode. 
The detector beeps, flashes, and vibrates rapidly (twice per second) until 
the battery loses power. To deactivate the detector before the battery loses 
power, press 

C

. Contact 

BW Technologies by Honeywell

The detector initiates safety shutdown mode if the 

  self-test fails three consecutive times, 

  automatic battery test fails five consecutive times, or 

  detector has not been manually deactivated within 8 hours of initiating 

the detector life-ending alarm. 

Gas Alarm Setpoints 

The following is a list of the factory alarm setpoints. 

Model 

Low Alarm 

Setpoint 

High Alarm 

Setpoint 

GasAlertClip Extreme O

2

19.5% 23.5% 

GasAlertClip Extreme CO 

35 ppm 

200 ppm 

GasAlertClip Extreme H

2

10 ppm 

15 ppm 

GasAlertClip Extreme SO

2

5 ppm 

10 ppm 

 

Note: Detector may be configured with customer specified alarm setpoints. 

Displaying the Gas Alarm Setpoints 

Press 

C

 to display the alarm setpoints. 

            

 

 

Alarm setpoints are factory configured and cannot be modified. 
 
 

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