Microsensor MFE600H Series, Operation Manual

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3
3
Electrical Connection
The MFE600H energy electromagnetic flowmeter converter can be divided into integrated converter and
separated converter, and the wiring diagram is shown in Figure 1 and Figure 2.
When wiring, please note:
a) RS485 communication cable needs to use two-core twisted pair shielded wire;
b) The same cable shall not be used for the power line and 4mA~20mA DC signal line. Two cables
shall be connected separately.
3.1
Integrated wiring
Figure 1 Integrated wiring diagram
When connecting the power cable, pay attention to select the appropriate voltage level wiring. For
different voltage levels, select 220V AC or 24V DC wiring to avoid power wiring faults.
When wiring, select the corresponding power terminal to connect to the power line according to the
product specifications, and then connect to the signal line according to the required output signal. See
Table 2 for the specific meaning of the integrated electromagnetic flowmeter wiring terminals.
Table 2
Terminal Symbol Function
1 T-/B RS485/RS232 communication output
2 RS232 GND RS232 grounding wire
3 T+/A RS485/RS232 communication input
4 IOUT 4mA~20mA DC output;
5 POUT Pulse/frequency output
6 COM Pulse/frequency output grounding wire
7 TRH1
Inlet thermal resistance 8 TRH2
9 TRH3
10 TRL1
Outlet thermal resistance 11 TRL2
12 TRL3
13 S1 Electrode wire
14 S0 Signal grounding wire
15 S2 Electrode wire
16
＋
24V
24V DC (12V DC) power supply access
17
－
24V