Honeywell XNX, Technical Manual

Page: 47 / 200

XNX Universal Transmitter
Section 2 - Installation and Operation 45
mV Remote Sensor Mounting
The sensor can be mounted remotely from the transmitter; the
installation will vary by installed location, sensor and thread type
used� To remotely mount the sensor, follow this procedure:
1� Unscrew the transmitter’s weatherproof cover and loosen
the retainer locking screw with the supplied hex key�
2� Run conduit from one of the transmitter’s available conduit
ports to the location of the remote terminal housing�
A terminal housing provides a mounting base for the
sensor� The installation wiring enters the terminal housing
via conduit�
UL/CSA Aluminum Junction Box
2441-0022
UL/CSA Stainless Steel Junction Box
2110B2103
ATEX/IEC Junction Box
00780-A-0100
Figure 47. Remote Terminal Housings
The distance between the XNX Transmitter and remote
installation must comply with these parameters to insure proper
operation� Distances are dependent on sensor types and the
wire gauge used�
AWG Metric Wire Gauge
MPD CB1, 705 Series.
Sensepoint Series
Sensors
MPD IC1, IV1 & IF1 Sensors
24 0.25 mm 2 12m (47 ft.) 30m (97 ft.)
22 20m (65 ft.) 50m (162 ft.)
20 0.5 mm
2
30m (97 ft.) 80m (260 ft.)
18 50m (162 ft.) 120m (390 ft.)*
16 1.0 mm 2 80m (260 ft.)* 200m (650 ft.)*
*
Frequency of Zero calibration may increase due to the changes in wire resistance from changing temperature.
3� Wire the pluggable terminal block as shown in Figure
45 then plug the connector into the back of the mV
personality board� In remote mount MPD configurations,
the 3 wires connecting the pluggable terminal block and
the remote MPD must be routed through the supplied
ferrite bead (Honeywell Analytics part no� 0060-1051,
supplied in the accessory kit) as shown in Figure 48�
Internal Ground Lug
(do not use)
Power
Ferrite Bead
for Remote
Sensor Wiring
mV
Remote
Sensor
XNX Universal Transmitter
Figure 48. Ferrite bead wiring
4� Mount the remote sensor junction box with sufficient room
below to fit the sensor and weatherproof cover�
Warning:
Install the junction box according to local codes and
manufacturer’s requirements.