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9-4 • E2 RX/BX/CX I&O Manual 026-1614 Rev 4 5-JAN-2013
203-5751
Wall-mounted
relative
humidity (RH)
sensor
Down
1. Use Belden #8771 shielded three-conductor cable or equivalent.
2. Connect the RED, BLACK, and WHITE wires to
the screw terminals the sensor’s con-
nector as shown in Figu
re 2. Clip the SHIELD wire.
3. Connect the SHIELD and BLACK wires to the 0
V terminal of the input board. Connect
the WHITE wire to the SIG terminal of the input board.
4. Connect the RED wire to the +12V power terminal on the input board.
5. Locate the input dip switch for the sensor point, and set to the OFF position (LEFT for
M
ultiFlex, DOWN for 16AI). Refer to the input board’s user manual for locations of the
input dip switches.
210-2002 Wall-mounted
dewpoint sensor
Down
1. For wiring the sensor to a Emerson Retail Solutions input board, use Belden #8761
shielded two-conductor cable or equivalent.
2. Connect the BLACK and WHITE wires to the s
crew terminals on the sensor’s connector
as shown in
Figure 3
(connect BLACK to Signal Ground and WHITE to 0-5V Output). Clip the
SHIELD wire.
3. Connect the SHIELD and BLACK wires to the 0
V terminal of the input board. Connect
the WHITE wire to the SIG terminal of the input board.
4. Connect 24VAC (a separate 120VAC/24
VAC transformer must be used P/N 640-0039)
to the power terminal on the dewpoint sensor back plate using the BLACK and WHITE
wires. (This 24VAC transformer must only be used to power this dewpoint sensor. Do
not use this transformer to power additional devices.)
5. Locate the input dip switch for the sensor point, and set to the OFF position (LEFT for
M
ultiFlex, DOWN for 16AI). Refer to the input board’s user manual for locations of the
input dip switches.
B
LA
C
K
W
HI
T
E
S
H
I
E
L
D
B
L
A
C
K
W
H
I
T
E
WALL-MOUNT
DEWPOINT SENSOR
BACK PLATE
(FRONT VIEW)
B
E
L
D
E
N
#
8
7
6
1
O
R
E
Q
U
I
V
A
L
E
N
T
S
H
I
E
L
D
(
C
L
I
P
)
MULTIFLEX INPUT BOARD
(BOTTOM LEFT CORNER SHOWN)
8
7
6
5
4
3
2
1
12
120 VAC
24 VAC
(P/N 640-0039)
Signal
Ground
0-5V
Output
Separate
Transformer
206-0002 Light Level
Down
1. Wire GREEN ground wire
to odd numbered terminal.
2. Wire YELLOW and RED
s
ignal wires to even num-
bered terminal.
3. Wire the POWER wire to a
+12
VDC source on input
board.
P/N Sensor
Input Type
Dip Switch
Wiring
Table 9-1
- Sensor Wiring