Technical Manual

XNX Universal Transmitter
Section 1 - Introduction
12
1.1.5 Patents
This table shows details about XNX-related patents.
Patents Applicable to the XNX Universal Transmitter
Patent
Number
Description Application
6,123,818 Reflex patent Implemented in XNX
6,251,232 Reflex patent Implemented in XNX
6,351,982 Flammable sensor housing XNX accepts this sensor
6,395,230 Pellistor Sensor used in XNX
7,225,661 Gas calibration adapter Applicable to XNX
7,716,962 Method of gas calibration Used to calibrate XNX ECC cartridges
1.2 Product Overview
The XNX transmitter is comprised of the main parts shown
below.
Cover
Pod
Intrinsically Safe (IS) Barrier for
Optional Local HART Interface
Intrinsically Safe (IS) Barrier for
Electrochemical Sensor Interface
(when equipped)
Enclosure
Figure 2. XNX Exploded View
A complete description of XNX accessories can be found in
publication 1998-0807 XNX Universal Transmitter Parts List.
1.2.1 Enclosure
Available in either Stainless Steel or Aluminum, with 3/4” NPT
(UL/CSA or UL/ INMETRO) or M25 (ATEX/IECEx only) threaded
cable/conduit ports, the XNX Universal Transmitter enclosure is
explosion-proof and suitable for use in -40°F to +149°F (-40°C to
+65°C) operating conditions. A 5-coat marine nishing process
provides the highest degree of corrosion protection. For more
information on performance specications, see Section 6 -
Specications.
The XNX enclosure is equipped with ve threaded cable/conduit
ports providing functional and exible congurations based on
sensor and option choices. See Figure 5 for cable/conduit port
assignments and restrictions.
Stopping plugs (HA PN# 1226-0257 or 1226-0258) have been
provided to seal unused cable/conduit ports and have been
Agency evaluated/approved for use with the XNX enclosure
only. The number of stopping plugs varies among available
congurations.
Caution: The stopping plugs are for use only with the XNX Transmitter
and should not be used with any other device.
Mounting lugs integral to the XNX enclosure allow easy instal-
lation on a at surface or 2”-6” (50-150mm) diameter pipe with
the optional Pipe Mount Kit or Ceiling Mount Bracket Kit.