Honeywell XNX Technical Manual page 178

XNX Universal Transmitter
Calibration
The calibration menu permits calibrating zero or span and
bump testing� Additionally, when fitted with a Searchline EXCEL
sensor, the Calibrate menu displays the optical signal strength
for mechanical alignment� The gas calibrate operation is shown
below�
Figure 245. Gas Calibrate Method
Caution: Do not back out of a menu selection while a calibration is in progress.
Configuration
All user settings of the XNX transmitter can be made either at
the local user interface or over HART� The configuration menu
facilitates convenient setup of alarm levels as shown in Figure
246� Methods are also provided to set time, units, and other
parameters�
Appendix A - HART Protocol
®
Figure 246. Set Range and Alarm
Conclusion
The XNX HART interface adds value by facilitating remote
operation of Honeywell Analytics gas sensors� All functions
available locally are also available over HART�
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