4690 Series
Turbidity systems
4 Electrical Connections
IM/4690–EN Rev. A
15
4.3.2 Panel-mount Analyzer Connections
Note.
Refer to Fig. 4.2, page 12 for access to terminals.
Slacken terminal screws fully before making connections.
Fig. 4.5 Panel-mount Analyzer Connections
Note.
1. A second retransmission output is available if the RS485 serial communications facility is not used.
2. If
Test Cleaner
is set to
YES
(see page 28), Relay 2 becomes 'Failed Wiper Alarm' relay.
1
2
3
4
5
6
7
8
9
E
N
L
1
2
3
4
5
6
7
8
9
10
11
12
+
1
2
3
4
5
6
7
8
9
E
N
L
TBA
TBB
1
2
3
4
5
6
7
8
9
10
11
12
+
Relay 2
– see
Note 2
0V
Rx–
Rx+
Tx–
TX+
Blue
Black
Green
Red
Yellow
White
Braid
Earth (Ground) Stud
Earth (Ground) Stud on Case
Relay 1
Retransmission
Output
NC
C
NO
NC
C
NO
Earth
Neutral
Line
Power Supply
– see
Warning
on page 13
RS485 Serial Interface (If
fitted)
Turbidity Sensor
(see also Table 4.1,
page 14)
Link to Earth (Ground) Stud on Case
2nd Retrans.
Output
– see
Note 1
.
