XNX Universal Transmitter
Installation and Operation
31
Warning: Any work on the interior of the detector must be conducted only by Honeywell-
trained personnel
Warning: To reduce the risk of ignition in hazardous atmospheres, disconnect the
equipment from the supply circuit before opening the sensor enclosure. Keep the
assembly tightly closed during operation. Conduit runs must have a seal fitting connected
within 18 inches (45 cm) of the enclosure.
Warning: Never open the XNX enclosure under power unless the area is known to be
non-hazardous.
Warning: When the transmitter is equipped with the optional Remote Mount Kit, the
remote sensor must be securely mounted in a fixed position. The Remote Sensor kit is not
intended to be used as a handheld sensor.
Note: Agency certifications require that EC and mV sensors face down. Optima
sensors must be mounted horizontally.
!
The transmitter is congured with ve cable/conduit ports built
into the housing for wiring and mounting sensors. Figure 23
provides the guidelines to proper installation of the transmitter.
While relay wiring can use any
available cable/conduit port in
the enclosure, to avoid electrical
noise do not use the same
cable/conduit port for both relay
reset and relay signal lines.
Option Position
Local HART
®
Option B
XNX Electrochemical Sensor - Local/Remote C
MPD, 705 Series, Sensepoint Series C
Searchpoint Optima Plus A or E
Searchline Excel Typically C
Remote Sensor Connection (except EC) Any remaining
Searchpoint Optima Plus - Remote Any remaining
Modbus Any remaining
Relays Any remaining
Foundation Fieldbus Any remaining
Power Any remaining
Figure 23. Cable/conduit port assignments
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