10
3.4
Panel-mounted Instrument Connections – Fig. 3.5
✶
Note. Refer to Fig. 3.2 for Access to Terminals.
Caution. Slacken terminal screws fully before making connections.
…3
ELECTRICAL CONNECTIONS
Warning. The power supply earth (ground) must be connected to ensure safety to personnel,
reduction of the effects of RFI and correct operation of the power supply interference filter.
Fig. 3.5 Panel-mounted Instrument Connections
+
–
Normally Closed
Common
Normally Open
Normally Closed
Common
Normally Open
Neutral
Live
Earth
TBA
Relay 1
Relay 2
1
2
3
4
5
6
7
8
9
E
N
L
1
2
3
4
5
6
7
8
9
10
11
12
Mains Supply
Retransmission Output
0V
Rx–
Rx+
Tx–
Tx+
Link
Green
White
–ve (Black)
+ve (Red)
TBB
RS422/RS485
Serial Interface (If fitted)
D.O. Sensor
1
2
3
4
5
6
7
8
9
E
N
L
1
2
3
4
5
6
7
8
9
10
11
12
Earth Stud
Earth Stud (on case)
Earth Stud (on case)
Pt1000
Temperature
compensator
Braid
