Endress+Hauser nivocompact FTC 831, Инструкция по установке и эксплуатации

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Connecting the Nivocompact with Electronic Insert EC 43
(Three-Wire NPN) for DC
Transistor Circuit for Load The load connected to Terminal 3 is switched by a transistor, contactless
and therefore without bounce.
Terminal 3 has a negative signal in normal switching mode.
The transistor is blocked on level alarm or with a power failure.
Protection Against Voltage Peaks Connecting to an instrument with a high inductance:
a voltage limiter should be connected.
Fig. 12
Connecting the Nivocompact with electronic
insert EC 43 (NPN connection)
F: Fine-wire fuse, load-dependent
R: Connected load, e.g. PLC, PCS, relay
M: Ground connection to silo or
metal parts near to the silo
E: Grounding
Nivocompact FTC 831 Connection
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