ZFC
ZFC K03/0522
page 29
Type 4T
An isolated 4-20mA signal proportional to the flow rate is available with this option.
When the output is disabled, a 3.5mA signal will be generated on these terminals.
Max. driving capacity 1000 Ohm @ 30VDC.
Terminal connections - Isolated 4-20mA analog output (typical)
Terminal 09-11; Terminal 12-14; Flowmeter input A and B:
Three basic types of flowmeter signals can be connected to the unit: pulse,
active pulse or coil. The connections for flowmeter A (Terminal 09-11) and B
(Terminal 12-14) are the same. The screen of the signal wire must be
connected to the related common ground terminal (unless earthed at the
sensor itself). The maximum input frequency is approximately 10 kHz
(depending on the type of signal). The input signal type has to be selected in
the flowmeter setup (read chapter 7).
Sine-wave signal (Coil):
The ZFC is suitable for use with flowmeters which have a coil output signal. Two
sensitivity levels can be selected:
COIL-LO: sensitivity from about 80 mVpp;
COIL-HI: sensitivity from about 20 mVpp;
Terminal connections - Coil signal input (typical)
Pulse-signal NPN / NPN-LP:
