Safety 2�1 Mounting And Location Of Sensors - Honeywell XNX Technical Manual

XNX Universal Transmitter
2.1 Mounting and Location of Sensors
Caution: Locate transmitters and sensors in accordance with
relevant local and national legiislation, standards, and codes of
practice.
The placement of sensors should be determined following the
advice of experts having specialist knowledge of gas dispersion,
experts having knowledge of the process plant system and
equipment involved, and safety and engineering personnel� The
agreement reached on the location of sensors should be
recorded� Consider these factors when locating gas sensors:
• possible damage caused by natural events such as rain or
flooding
• ease of access for functional testing and servicing
• how escaping gas may behave due to natural or forced air
currents�
2.1.1 Mounting the XNX
The transmitter can be mounted in a number of ways using the
integral mounting tabs� The transmitter can be attached to flat
wall surfaces or to Unistrut
the unit can be mounted to pipe of diameter 2" to 6" (50 to
150mm)� A ceiling mount bracket kit (1226A0358) is also
available�
Note:
Agency certifications require that EC and mV sensors face
down. Optima sensors must be mounted horizontally.
Section 2 - Installation and Operation
Universal Transmitter
®
� With the optional Pipe Mount kit,
®
7.75"
196.85 mm
6.00"
15.4 mm
5.6"
124.24 mm
0.55"
14.35 mm
1.67"
42.41 mm
Figure 24. XNX Universal Transmitter mounting dimensions and clearances
28
4.48"
113.8 mm
2.054"
52.18mm
0.625"
15.88mm
1.768"
44.90 mm
1.768"
44.90 mm
3.176"
80.67 mm
1.2"
31.75mm 0.945"
24mm
6.138"
158.75mm