PART TWO - INSTALLATION
SECTION 3 - ELECTRICAL CONNECTIONS
PRO-series Model C3 Conductivity Transmitter
Rev. 0-201
26
☞
•
Integral Sensor-mounted Transmitter: Route cable through
right side cable entry knockout hole in the back cover. (Do
not open left side cable entry knockout hole in cover.)
Wiring Tip!
Use high quality, shielded instrumentation cable.
Refer to the four-wire hookup that meets your application
requirements, and connect the transmitter accordingly.
5
7
6
1
3
4
2
-
Loop Power
12-30VDC
Loop Resistance
(See nomograph)
+
-
External Power
12-30VDC
+
1000
R
ESI
ST
AN
C
E
I
N
O
H
M
S
16
14
12
400
200
0
800
600
1400
1200
LOOP LOAD
50 Ohms/Volt
26
24
22
20
18
DC VOLTAGE
30
28
FIGURE 2-11 Four-wire Hookup without RS-485 Serial Communication
Comms Return
5
7
6
1
3
4
2
-
RS-485 Serial
communications
"B" -
"A" +
Loop Power
12-30VDC
Loop Resistance
(See nomograph)
+
-
External Power
16-30VDC
+
DC VOLTAGE
1000
R
ESI
ST
AN
C
E
IN
OH
M
S
400
0
200
600
800
1200
1400
16
18
20
22
LOOP LOAD
50 Ohms/Volt
26
24
28
30
FIGURE 2-12 Four-wire Hookup with RS-485 Serial Communication
