A Basic Overview of the Calibration of the GasAlertQuattro

Calibrating the unit is essential to make certain that it will accurately detect the presence of potentially hazardous gases. So, let us have a quick look at how to calibrate the GasAlertQuattro.


Basic Facts


First, it is important to recall that a calibration should only be performed in environments that do not contain any hazardous gases. Also, hose length may affect correct calibration readings. For this reason, the maximum length should be no more than three feet. This procedure cannot be aborted until after the sensors have been zeroed. Finally, canceling the procedure after turning on the gas can result in an incorrect calibration. BW recommends calibrating your monitor every 180 days. Before you calibrate your monitor, you should have your cylinder of gas with the regulator attached. The regulator should be off for the first part, but later steps require some quick action and you will not have time to attach the regulator and the calibration cap before it fails.


How to Calibrate


While the monitor is turned on, you will press and hold the PUSHBUTTON. The display will show a countdown to power off. Keep holding the button after the monitor turns off and you will see a Starting Calibration scree. Once the Automatic Zero starts, you can let go of the button.


Once the unit is zeroed, it will instruct the user to attach the hose and calibration cap. Screw in the calibration cap tightly to the front of the monitor and turn the regulator on. The sensors will begin detecting gas and it will move into the calibration screen shown above. After the calibration is completed, there will be a check mark next to each one of the sensors that have been calibrated.


Once the sensors successfully calibrate, the monitor will reset the calibration due date back to the default of 180 days or the custom level that can be set in the FleetManager II program. Some helpful part numbers in case you need calibration equipment include: QT-TC1 (Test Cap), CalKit34 (34-Liter Calibration Kit Including Regulator).


If you are having trouble calibrating your detector, refer to the owner’s manual for more details. Some tips can be found in the Calibration Troubleshooting guide in your manual.