How to wire it
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4-wire electromagnetic flowmeter, for connection to a DCS – how to wire it?
Frequency output 3/4 9/10
9.10 Power Supply 1.2 Current
Two power cables, AC 220V; 9 and 10 – two signal cables, 1 and 2. Just by marking HART, you can’t understand it anymore?
It’s clearly marked on the wiring diagram: 1 and 2 correspond to currents of 4–20 mA, while 9 and 10 represent the power supply
Terminals 9 and 10 are connected to a 220V AC or 24V DC power supply； 1+ and 2- provide 4~20mA signals for connection to DCS or PLC; if it is a pulse-free flow integrator, then connect to 3+ and 4-
Connect the signal line to 1.2, and the power line to 9.10
1 and 2 are analog signals ； 3 and 4 are frequency signals ； 5 and 6 are the 485 communication protocol ； 9 and 10 are the power supplies, which can be connected to 24VDC or 220VAC. When the distance is large (over 500), 24VDC may not provide sufficient power; it is recommended to use a higher-power 24VDC or 36VDC supply. In explosion-proof areas, 24VDC is recommended