Single and Dual Input Analyzers for Low Level Conductivity
AX410, AX411, AX413, AX416, AX418, AX450, AX455 & AX456
6 INSTALLATION
IM/AX4CO Issue 11
57
6.4.2 Connections
Fig. 6.9 Connections, Wall-/Pipe-mount Analyzer
Note.
When connecting non-metal conductivity cells or metal conductivity cells that are isolated from earth (ground), e.g.
mounted in plastic pipework, link Terminal B14 (and Terminal B6 if dual input analyzer) to the earth (ground) stud on the
analyzer case - see Fig. 6.8.
When connecting earthed (grounded) metal conductivity cells, ensure that the cell earth (ground) and the analyzer earth
(ground) stud are at the same potential.
* When a 2-wire Pt100, Pt1000 or 'balco 3k' temperature compensator is fitted.
Terminal Block B
Conductivity Cell Connections
Sensor B
Sensor A
B1
B9
Temperature Compensator Common.
Link B9 to B10 (and B1 to B2 if Dual Input Analyzer) *
B2
B10
Temperature Compensator Third Lead
B3
B11
Temperature Compensator
B4
B12
Screen
B5
B13
Cell (Cell Electrode)
B6
B14
Cell (Earth Electrode) – see Note below
B7
B15
Not Used
B8
B16
Not Used
Refer also to Section 6.6 for ABB UK and US Sensor Systems Connections
C1
Not used
C2
Not used
C3
C4
C5
C6
Not used
C7
C
C8
NC
Relay 4
C9
NO
C10
C
C11
NC
Relay 5
C12
NO
C13
+
Analog Output 3
C14
—
C15
+
Analog Output 4
C16
—
Temperature Compensator
Connections
B16
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
TC
Link
Common
TC
Link
Common
Temperature Compensator
Connections
Used for optional
RS485 connection.
Refer to IM/PROBUS
Before making any electrical connections,
see Warnings on page 53
Earth (Ground)
Stud on Case
(see Fig. 6.8.)
+
85 to 265 V AC
Power Supplies
12 to 24V DC
or
–
24 V AC
Terminal block A
Terminal Block C
(Option Board)
Terminal Block B
Line
L
Neutral
N
Connect supply earth
(gr
ound)
to stud on case
E
CA
4
Relay 1
N
C
A
5
NO
A6
CA
7
Relay 2
N
C
A
8
NO
A9
C
A10
Relay 3 (see
Note
below)
NC
A11
NO
A12
Analog Output 1
+
A13
—
A14
Analog Output 2
+
A15
—
A16