XNX Universal Transmitter
Proof Testing Procedure
11
Verifying mA Settings
proper range to accurately detect the target gas.
Selecting
✖
will cancel the span calibration and return to
the Gas Calibration Menu.
4. When the sensor has completed the calibration and the span
algorithms have determined that it is within range, the Span
Passed screen will appear.
Figure 9. Span Passed Screen
If the calibration is not successful, the Span Failed screen will
display. Selecting
✓
will return to the Span Concentration screen
to begin the span calibration again. Selecting
✖
will exit Span
Calibration and return to the Gas Calibration Menu.
Arrow indicates
gas values too low
Selecting ‘
✔
’ returns to
the Span Concentration
screen
Figure 10. Span Calibration Failed
Once the Zero Gas and Span Gas calibrations are completed
successfully, the user will be prompted to
• exit with inhibit off,
• exit with inhibit on, or
• not exit.
Figure 11. Exiting Zero Gas and Span Gas calibrations
WARNING
While XNX is in Inhibit Mode, alarms are silenced. This will prevent
an actual gas event from being reported. Inhibit Mode must be reset
after testing or maintenance activities.
6.3 Verifying mA Settings
The mA levels output for inhibiting alarms during maintenance/
testing, warnings triggered by the XNX, overrange conditions,
Beam Blocked and Low Signal for the Searchpoint Optima Plus
and Searchline Excel gas detectors must be verified.
1.
From the Main Menu, select the Configure Menu (
). From
the Configure Menu, select mA Levels.
Figure 12. mA Levels Menu
2. Use the switches to move to the mA output to be
changed and use
✓
to select it.
✓
Figure 13. Set mA Levels for Warning
