Honeywell VA201T - Span Calibration

Calibration Handbook
108 Searchpoint Optima Plus
5. Continue until all three digits have been entered.
6. Apply the span gas. When concentration values are stable, select

to calculate the span adjustment.
This process also determines if the sensor is within range to accurately detect the target gas.
Sensor Reading
at Current Settings
Calibration Gas
Concentration
7. Select

to return to the Gas Calibration menu. If the calibration is not successful, the Span Failed screen
will be displayed.
Select

to return to the Span Concentration screen to repeat the span calibration.
Select

to exit Span Calibration and return to main Calibrate screen. If Span Calibration is exited, the
previous calibration values will be used. Select

to return to the Span Concentration screen.
If the calibration is successful, the Span Passed screen will be displayed.
8. Exit the Calibration Menu. After the zero and span calibrations have been successfully completed, the
user will be prompted to:
s Exit and turn alarm and fault inhibit off,
s Exit and leave the transmitter in inhibit mode. or
s Not exit