Electromagnetic flowmeter M910
Operation manual
15
4.3 Signal terminals
4.3.1 Current loop output
The 4 to 20 mA current loop can be set as a passive type between outputs 1, 2 (1 positive, 2 negative) or as an
active type between outputs 2, 3 (2 positive, 3 negative). In both cases the outputs are galvanically isolated from all
other electronic circuits of the flowmeter. Voltage drop on passive current loop is 4 V. Active current loop can
work to a maximum of 800
Ω
.
Example of current output connection:
For more information about current output see chapter “
Input and outputs configuration
”.
Current loop
Impulse
output
Frequency output
Status
output
PLC input
RS485 interface
Power supply
Passive
current output connection
Active
current output connection