XNX Universal Transmitter
Section 3 - Calibration
103
Figure 193. Gas Calibration Menu
Note: The Gas Calibration menu is for both zero calibration and span calibration.
Zero Calibration
Sensor Reading
Figure 194. Zero Calibration Screen
As the sensor detects the gas and the concentration increases, the
values displayed will reect the changing concentration. When the
concentration values are stable (about 3 minutes), select
✓
to allow the
transmitter to calculate the zero adjustment. Selecting
✖
will return to
the Gas Calibration menu.
Figure 195. Zero Calibration in Progress
3. If the zero calibration is successful, the transmitter will display
the Zero Passed screen.
Figure 196. Zero Calibration Passed
Span Calibration
If a span calibration is not required, select the
✖
to skip the span
calibration and return to the Calibration menu.
4. When the zero calibration is completed (or skipped), the Span
Concentration screen appears. The gas concentration for the
span gas calibration can be changed. If the span calibration is
skipped, the Gas Calibration screen displays.
Figure 197. Span Gas Concentration Screen
5. Enter the concentration of the span gas by selecting
✓
to choose
the rst digit. Use the
switches to
decrease or increase
the
values. Use
✓
to accept the new value and move to the next
digit. Continue until all digits have been selected.
Sensor Reading
at Current Settings
Calibration Gas
Concentration
Figure 198. Span Calibration Screen
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