AirLink T3A Operator’s Manual
Operation Settings and Calibration
•
53
6. Press the MENU button to save the gas concentration setting and to advance to the calibration
start screen.
7. Unscrew and remove the rain guard from the assembly.
8. Install the calibration cup to the AirLink T3A’s sensor housing.
9. Use the sample tubing to connect the regulator to the calibration cup.
10. For toxic gas cylinders, like Cl
2
, it is important to vent the regulator while installing it onto the
cylinder. Open the regulator by turning the knob counterclockwise and install it onto the
cylinder.
WARNING: Be sure to use a breathing apparatus and to ventilate the area well when
calibrating with high concentrations of toxic gases.
11. Press the MENU button to begin calibrating the sensor. The unit automatically begins the
calibration process. The display shows a countdown of the time remaining until the process is
complete. The amount of time varies based on the gas type.
NOTE:
Once the calibration countdown has started, the process cannot be stopped
without disconnecting the power from the unit.
12. When calibration is complete, remove the calibration cup from the sensor housing and
reinstall the rain guard.
NOTE:
If the sensor responds extremely slow, or does not respond to the applied
gas, it may indicate a failed sensor element. The sensor element will need to
be replaced before completing the zero and calibration process.
13. Turn the regulator knob clockwise to close the regulator.