Loading ...
Loading ...
Loading ...
XNX Universal Transmitter
Section 3 - Calibration
92
As the sensor detects the gas and the concentration increases,
the values displayed will reect the changing concentration.
When the concentration values are stable, 3 minutes, select
✓
to
allow the transmitter to calculate the zero adjustment. Selecting
✖
will return to the Gas Calibration menu.
Figure 196. Zero Calibration in Progress
3. If the zero calibration is successful, the transmitter will
display the Zero Passed screen.
Figure 197. 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 complete, 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 198. Span Gas Concentration Screen
5. Enter the concentration of the span gas by selecting
✓
to
choose the rst digit. Use the
switches to increment or
decrement 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 199. Span Calibration Screen
6. Apply the span gas. As the sensor detects the gas and the
concentration increases, the values displayed will reect
the changing concentration. When the concentration
values are stable, select
✓
to perform the span. The Span
Calibration process also determines whether the sensor
is within the proper range to accurately detect the target
gas.
Selecting
✖
will cancel the span calibration and return to
the Gas Calibration menu.
7. When the sensor has completed the calibration and the
span algorithms have determined that it is within range,
the Span Passed screen will appear.
Loading ...
Loading ...
Loading ...