Powering The Xnx For The First Time; 4�1 Xnx Units Configured For Ec, Mv, And Ir; Excel) - Honeywell XNX Quick Start Manual

4 Powering the XNX for the First Time

4�1 XNX Units Configured for EC, mV, and IR (except Searchline

Excel)

After mounting and wiring the XNX, the plug in sensor should be fitted (if equipped) and
the installation visually and electrically tested as below.
WARNING
Prior to carrying out any work, ensure local and site procedures are followed.
Ensure that the associated control panel is inhibited so as to prevent false alarms.
Minimum and maximum controller alarm levels should not be set at less than 10%
or greater than 90% of the full scale range of the detector. CSA and FM agency
limits are 60% LEL or 0.6mg/m
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The following procedure should be followed carefully and only performed by
suitably trained personnel.
1. Check that the transmitter is wired correctly according to this manual and
the associated control equipment manual.
2. If equipped, unscrew the weatherproof cover, loosen the sensor retainer
locking screw and unscrew the retainer.
3. Plug in the sensor cartridge taking care to align the sensor pins with the
connector holes in the PCB.
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For toxic sensors, remove the shorting clip from the bottom of the sensor prior to
installation. For O
4. Refit the sensor retainer, tighten the locking screw and refit the weatherproof
cover.
Note:
Before replacing the cover on the transmitter housing, coat the threads with
anti-seize compound to prevent corrosion buildup.
Also inspect the cover o-ring for cracking or any other defect that might
compromise the integrity of the seal. If it is damaged, replace with the o-ring
supplied in the accessory kit.
5. Apply power to the XNX which will in turn provide power to the detector.
6. The detector output will be forced to 3mA (default fault/inhibit).
7. The XNX display will enter a start up routine displaying the initialization
screen, then the transmitter loads its operating system, data from the
sensor and checks if it is the same type transmitter and sensor software
version numbers, gas type, the detection range and span calibration gas
level, estimated time to next calibration due, and self test result. The boot-up
procedure takes approximately 45 seconds.
XNX Universal Transmitter Quick Start Guide
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sensors, there is no shorting clip provided.
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