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3 INSTALLATION
Connecting compact transmitter 8225, 12-30 VDC, with cable glands, without
relay, to a PLC
The 4-20 mA signal originating from the transmitter without relay is sent out on the wires of
the 12-30 VDC power supply. The signal can be transmitted to a PLC.
4-20 mA
+
-
Fig. 3.7
Wiring compact transmitter, 12-30 VDC, with cable glands, or wall-mounted transmitter,
without relay, to a PLC
F1
+
-
12-30 VDC
(*)
(*) If direct earthing is impossible, connect a
E-21-
CONDUCTIVITY 8225
100 nF/50 V capacitor between the negative
terminal and the earth.
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