24
Wiring
Section 4: Wiring
Instruction Manual
April 2017
LIQ-MAN-1066
OUTPUT 2
TB5
TB3
TB2
TB4
TB1
+24V
GND
GND
+24V
TH
U
M
ANODE
CATHODE
RTN
SNS
RTD IN
+V
-V
REF
SHLD
GND
SOL
SHLD
pH
SENSOR WIRING
TB7
TB6
_
+
R
ED
/
+V
D
C
Y
EL
LO
W
/
O
U
TP
U
T
1
+2
4V
B
LA
C
K
/
O
U
TP
U
T
1
G
N
D
G
RE
EN
/
G
RO
U
N
D
S
C
RE
W
W
H
IT
E
WIRE NUT
LOOP POWER/THUM
(OUTPUT1)
LOOP PWR
4-
20
m
A
/ -2
4V
D
C
RE
TU
RN
4-2
0m
A
/ +
24
V
D
C
1
TB7
/OUTPUT 2 REQUIRES EXTERNAL DC POWER.
2
TB6/
THUM TERMINAL IS USED ONLY FOR
WIRELESS THUM ADAPTOR INSTALLATIONS.
250 OHM RESISTOR IS PRE-INSTALLED IN-CIRCUIT.
3 SPLICE CONNECTOR - PROVIDED BY END USER.
INSTALL PLUGS IN ALL OTHER
OPENINGS AS NEEDED
INNER ENCLOSURE
HINGE SIDE OF FRONT PANEL
1
2
WIRELESS
THUM
ADAPTOR
1066 HART CIRCUIT BOARD
(pH/CL/DO/OZ)
ASSY 24406-xx
3
DWG NO.
40106614
FIGuRE 4-9. power/Current loop wiring with wireless ThuM adaptor