XNX Universal Transmitter
Section 3 - Calibration
109
5. Continue until all three digits have been entered.
Figure 208. Span Concentration screen
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
Figure 209. Span adjustment calculation
7. Select
✖
to return to the Gas Calibration menu. If the calibration is
not successful, the Span Failed screen will be displayed.
Figure 210. Span Failed screen
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.
Figure 211. Span Passed screen
8. Exit the Calibration Menu. After the zero and span calibrations
have been successfully completed, the user will be prompted to:
• Exit and turn alarm and fault inhibit off,
• Exit and leave the transmitter in inhibit mode. or
• Not exit
Figure 212. Calibration exit options
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