53
GasAlertQuattro
Calibration
Attach the calibration cap to the detector (
). Turn the
calibration cap knob firmly to ensure a tight seal to the detector.
Note
Ensure the knob is securely fastened before applying gas. Do
not overtighten the calibration cap. Ensure strong air currents
are kept away from the exhaust side of the calibration cap, as
this can affect the calibration accuracy.
10. Open the valve on the regulator and apply gas at a flow rate of
250-500 ml/min.
11. The detector initially tests for gas. When a sufficient amount of
gas is identified, displays beside each gas that is detected.
12. The detector then begins calibrating the sensors.
The following activities occur during the span:
•
calibrating
displays at the bottom of the screen.
• Gas values adjust during the span.
• Target gas values that are defined in Fleet Manager II
display above or below the adjusting gas value.
13. When the following screen displays, close the valve on the gas
cylinder and remove the calibration cap from the detector. A
checkmark displays beside each sensor that has calibrated
successfully.
