GasAlertMicro 5/PID/IR
User Manual
28
%Vol CO
2
 (CO
2
 Sensors Only)
Note
Correction factors are not applicable to the CO
2
 sensor.
%Vol CH
4 
(LEL Sensors Only)
Correction Factor (CF)
Depending upon the selected sensor, refer to the following sections 
LEL Sensor
 or PID Sensor for more information.
Note
Corrections factors are not applicable to CO
2
 sensors.
If the %vol CO
2
 is enabled, the detector 
displays the carbon dioxide (CO
2
) 
readings as %vol (0.0).
From the Sensors option menu, select 
CO
2
.
Press H to scroll to %vol CO
2
. Press C 
to toggle between enable and disable.
Confirmation is not required. If no buttons 
are pushed, after 20 seconds the detector 
returns to the sensor selection screen. 
The change is saved automatically.
The detector is shipped with %vol CO
2
 
disabled.
Enable  
Disable 
If %vol CH
4
 is enabled, any currently 
enabled correction factor is ignored and 
the detector operates assuming a 
methane (CH
4
) calibration.
From the Sensors menu, select LEL and 
press C to confirm. 
Next, press H to scroll to %vol CH
4
 and 
press C within 20 seconds to confirm.
Press C to toggle between enable and 
disable.
Confirmation is not required. If no buttons 
are pushed within 20 seconds, the 
detector returns to the sensor selection 
screen. The change is saved 
automatically.
The detector is shipped with %vol CH
4 
disabled.
Enable  
Disable