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ZFC
ZFC K03/0522
page 5
5. Operating Principle
5.1 Functions and features
The flow computer, model ZFC is a microprocessor driven instrument for the
calculation of differential flow measurement applications using flow equations
for liquids. This product has been designed with a focus on:
two multi-purpose pulse inputs;
several mounting possibilities with aluminum or GRP enclosures
for harsh industrial surroundings;
ability to process all types of flowmeter signals;
transmitting possibilities with analog / pulse and communication outputs.
Flowmeter and temperature input
This manual describes the unit with a pulse input from the flowmeter. The ZFC
has also a PT100 temperature input. Other versions are available to process
(0)4-20 mA signals. Two flowmeters with a passive or active pulse, Namur or
sine wave (coil) signal output can be connected to the ZFC. To power the
sensor, several options are available.
Standard output
Pulse output to transmit a pulse that represents a totalized quantity as
programmed.
Linear 4-20 mA analog output to represent the actual calculated differential
flow rate as programmed. The 4-20 mA signal limits can be tuned.
Typical application