22
I/O Board wiring labels
I/O Boards 1 through 4
I/O Board 1-4
Terminal Blocks
I/O Board P/N
Identification Labels
P/N 191910
SENSOR INPUT(2)
TBxA - SENSOR 1
TBxB - SENSOR 2
1,2
ECOND
CCOND
pH/ORP DIS
RCV+
RCV–
+5V
–5V
XMT+
RCV
R-SHLD
TEMP+
TEMP+
TEMP+
X-SHLD
SHIELD
SHIELD
XMT
XMT–
TEMP–
TEMP–
TEMP–
TB Ch
1
3
5
7
9
10
11
12
13-18
2
4
6
8
IN+
IN–
Contacting Conductivity (CCOND)
I/O Board Part Number
Notes:
Identify P/N 191910 I/O Board and connect wires to the terminal blocks directly
below the I/O slot that the board is in.
Use the wiring label located on the front panel that has a matching I/O part number.
Either channel can support any of the sensor types listed.
P/N 191910
SENSOR INPUT(2)
TBxA - SENSOR 1
TBxB - SENSOR 2
1,2
ECOND
CCOND
pH/ORP DIS
RCV+
RCV–
+5V
–5V
XMT+
RCV
R-SHLD
TEMP+
TEMP+
TEMP+
X-SHLD
SHIELD
SHIELD
XMT
XMT–
TEMP–
TEMP–
TEMP–
TB Ch
1
3
5
7
9
10
11
12
13-18
2
4
6
8
IN+
IN–
Channel 1
I/O Board Part Number
Contacting Conductivity (CCOND)
Electrodeless Conductivity (ECOND)
SHIELD
TEMP– WHT
TEMP+ GRN
RCV BLACK
XMT RED
TEMP + GRN
TEMP – BLK
RCV – BLK
XMT + WHT
XMT – BLK
RCV + RED
R-SHLD
X-SHLD
18
Conductivity
Electrode
(Wiring is typical of all three sensor options)
High Pressure
GRN WHT RED BLK
General Purpose
Channel 2
1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
Figure 7 Part Number 191910 Dual Sensor Board wiring - Conductivity