XNX Universal Transmitter
Section 3 - Calibration
108
1. From the Calibration menu, select the Gas Calibration option.
Figure 203. Calibration menu
z
Figure 204. Gas Calibration menu
2. Perform a zero calibration. When concentration values are stable,
select
✓
for XNX to calculate the zero adjustment
Sensor Reading
Figure 205. Apply Zero Gas screen
3. Select
✖
to return to the Gas Calibration menu. If the zero
calibration was successful, the transmitter will display the Zero
Passed screen
Figure 206. Zero Calibration screens
4. Begin the span calibration by entering the concentration value
of the calibration gas: Select
✓
to choose the rst digit. Use
+/- to increase or decrease values. Select
✓
to accept the value
and move to the next digit. Use the calibration cover (Honeywell
part number 2108B0272) to perform a span calibration at a ow
regulator of 1 LPM. (If a span calibration is not required, select
✖
to
return to the calibration menu.)
Figure 207. Searchpoint Optima Plus
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