User Manual

6. Press [Y/+] to start calibrating. You can abort the calibration at any time during the

countdown by pressing [MODE].

After a timer countdown, the span calibration is done. The LCD will display whether the

calibration was successful and the reading for that calibration gas.

Note: If the sensor calibration fails, try again. If calibration fails again, turn off the power and

then replace the sensor.

WARNING: Do not replace sensors in hazardous locations