Honeywell XNX User Manual

XNX Universal Transmitter Quick Start Guide
47
8.1 Calibration
WARNING
Do not use the XNX Universal Transmitter in oxygen-enriched atmospheres.
Concentrations displayed will be adversely aected by oxygen depletion.
CAUTION
The calibration procedure should only be performed by qualied personnel.
NOTE:
The default calibration values for the “Calibration Required” diagnostic
vary based on sensor type. This value can be reprogrammed in
accordance with site requirements to ensure the highest level of safety.
Correct operation of each sensor/detector should be conrmed using
calibration with a certied test gas of known concentration before
commissioning. See Section 9 - Sensor Data for calibration gas
specications.
8.1.1 Calibration Procedure
NOTE:
Follow the specic procedure outlined in the Operating Manual for each
sensing device. The Zero Calibration procedure should be performed
prior to the Span Calibration procedure.
1. Ifusingcompressedgascylinder,attachthecalibrationgasow
housingontothebottomofthesensorandapplythegas.
2. Accessthecalibrationmode.TheGasCalibrationmenuisforboth
ZeroandSpanCalibration.
Figure 42. Gas Calibration menu
ZeroCalibration
Sensor Reading
at Current Settings
Figure 43. Zero Calibration screen
Figure 44. Zero Calibration in
Progress
Select
✓
then apply the zero gas. As the sensor
detects the gas and the concentration increases, the
values displayed will reflect the changing
concentration. Selecting
✖
will return to the Gas
Calibration menu.

Honeywell XNX Specifications

General

Brand	Honeywell
Model	XNX
Category	Transmitter
Language	English