AirGuard
TM
27
www.bullard.com
Upon selecting
“NEXT”
AirGuard will display a picture of the instrument and the gas connection location.
Upon selecting the “NEXT”, AirGuard will display a “Span in Progress” display with a timer which counts down
the
time remaining in the span function.
Upon completion, the AirGuard will display a screen indicating the sensor voltage (mV) and report sensor flow,
main flow and results. A green check indicates successful calibration event.
Sensor voltage (mv), (Calibration Gas) reading can vary between 200 mV to 350mV.
If a span is unsuccessful the AirGuard will display a fault screen. The fault screen will appear if gas flow is not
present or the signal from the sensor is unsatisfactory due to sensor age.
