Honeywell XNX-AM Series Technical Manual page 48

XNX Universal Transmitter
mV Personality Wiring
A transmitter with the mV personality board allows interface to
the Multi Purpose Detector (MPD), 705, and Sensepoint devices.
CAUTION
!
Caution: See
Specifications to ensure that the transmitter and the mV sensor have the
appropriate approvals prior to commissioning.
Caution: Verify that the mV sensor being installed has compatible threads (3/4 NPT or
M25).
Read the Wiring the Transmitter
power and 4-20mA output connections that are common to all
personalities.
Connections from the mV sensor to the transmitter are made
via a single pluggable terminal block. Honeywell Analytics
recommends that an 8" (20 cm) service length for wiring be
maintained. The wire colors for the connections for each sensor
type are shown in the table on this page.
Verify that wires for 4-20mA outputs are routed away from
sources of noise such as relay wires.
NOTE
!
Note: The black and red wires from the MPD are not used with the mV personality
board. Ensure that they are properly isolated from live connections. Do not cut the
wires.
CAUTION
!
Caution: Dress the wires properly so that cabling does not contact switches 1 or 2
on the back of the POD. Do not force the POD into the enclosure. Doing so may result
in damage to the wiring or the POD. If resistance is felt, wires may be preventing the
POD from being properly positioned.
Installation and Operation
section which defines the
J1 - Local HART Option Connector
S1 and S2 - 20mA Output
J1
Source
LOCAL HART
20 mA
Isolated
Operation
S1 S2
Source
Sink
S1 S2
Isolated
+V 1-1
1-2
-V 1-3
1-4
+mA 1-5
-mA 1-6
Sense 1-7
0v 1-8
Ref 1-9
mV TB-1
Figure 43. mV personality board terminal blocks and jumper switches
mV Catalytic Bead Sensor
TB-1 Desc.
705
MPD
705HT
See subsections in the
Pins 1-6
7 Sense Brown
8 0v White
9 Ref Blue
*Internal earth ground; approximately one inch of the black sheath that contains the Sensepoint PPM's four wires (red, blue,
green, silver) must be split to allow the silver grounding wire to reach the internal grounding lugs.
46
internal
grounding lugs
Jumper Switch
S1 S2
▼ ▲
Sink ▲ ▼
▼ ▼
XNX mV TB-1
Wire Color from Sensor
mv MPD w/IR Sensor
Sensept
IR 5%
Sensept
PPM*
Senspt HT
CO
2
4-20 mA Output, Common Connections, and Power Settings
identification
Red
Green
Blue
IR Flam
CH
4
section for pin
Brown
White
Blue