General Instruction Manual
Wiring
Grounding connections and sensor circuits
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IM 01U10B00-00EN-R, 3rd edition, 2018-07-09
7.2 Grounding connections and sensor circuits
WARNING
Risk of injury from electrical shock due to inadequate grounding
▶
Perform potential equalization at the grounding terminals provided for this purpose
according to the figure “Grounding connections on transmitter and sensor”.
3
2
1
Fig. 27:
Grounding connections on transmitter and sensor
1
Grounding screw in transmitter terminal box for grounding conductor
2
Grounding terminal on transmitter for potential equalization
3
Grounding terminal on sensor for potential equalization
D +
D -
S1
+
S1
-
S2
+
S2
-
T
P1
T
P2
T
P3
D
+
D
-
S1 +
S1 -
S2 +
S2 -
TP1
TP2
TP3
COM
3
2
1
1
2 3 4
5
6
Fig. 28:
Connection terminal circuits (transmitter on the left side, sensor on the right side)
1
Driver circuit (D+/D-)
4
Signal grounding
2
Sensor circuits (S1+/S1-, S2+/S2-)
5
Transmitter
3
Temperature measurement circuit
(TP1, TP2, TP3)
6
Sensor
