XNX Universal Transmitter
Installation and Operation
62
In the nal stages of boot-up, warnings and faults
may be observed until the user performs the proper
conguration, calibration, and reset activities
described in the following sections. See Warnings
and Faults for detailed descriptions.
Once the General Status screen appears, the
transmitter and sensor are in normal monitoring mode.
Note: Calibration of sensors attached to the transmitter is mandatory before the
sensor can be used for gas monitoring. Refer to the Calibration section for the
procedure. For EC and mV personalities, perform Accept New Sensor Type before
calibrating the sensor.
Note: For initial commissioning, refer to EN 60079-29-2.
!
IR Units Configured for Searchline Excel
When powering the transmitter tted with a Searchline
Excel sensor, the following procedure must be performed by
Honeywell-trained personnel to assure proper installation.
1. Verify that the transmitter is wired correctly according to
this manual and the associated control equipment manual.
2. Apply power to the transmitter. This will in turn provide
power to the sensor.
3. The sensor output will be forced to 3 mA (default warning).
4. The transmitter will enter a boot-up routine, displaying
the initialization screen. The transmitter will load its
operating system, data from the sensor, sensor software
version numbers, gas type, the detection range and span
calibration gas level, estimated time to next calibration
due, and self-test result. This will take about 45 seconds.
Figure 61. XNX Initialization and General Status screens
In the nal stages of boot-up, warnings and faults
may be observed until the user performs the proper
conguration, calibration, and reset activities
described in the following sections. See Warnings
and Faults.
5. When the transmitter completes boot-up, perform a soft
reset (see the Soft Reset section) on the Searchline Excel
detector from the Calibration Menu. When the soft reset
is intitated, the RS-485 communication will be temporarily
interrupted and faults F120 and/or F161 may be observed.
The RS-485 communication will be re-established in a few
minutes and the faults will automatically be reset in Non-
Latching mode. F120 and/or F161 must be reset manually
in Latching mode.
6. Set the Path Length section for the application, then align
the transmitter and receiver (see the Align Excel section).
7. Once the alignment is complete, perform a zero
calibration on the Searchline Excel detector to complete
the commissioning process. See the Searchline Excel
Technical Manual (Honeywell part number 2104M0506) for
calibration information.
8. Reset any faults that appear in the transmitter’s display.
The transmitter and Searchline Excel sensor are now ready
to monitor.
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