ZFC
page 30
ZFC K03/0522
The ZFC is suitable for use with flowmeters which have a NPN output signal. For
reliable pulse detection, the pulse amplitude has to go below 1.2V. Signal setting
NPN-LP employs a low-pass signal noise filter, which limits the maximum input
frequency (read chapter 7).
Terminal connections - NPN signal input (typical)
Pulse-signal PNP / PNP-LP:
The ZFC is suitable for use with flowmeters which have a PNP output signal. 3 V
is offered on terminal 11 which has to be switched by the sensor to terminal 10
(SIGNAL). For a reliable pulse detection, the pulse amplitude has to go above
1.2 V. Signal setting PNP-LP employs a low-pass signal noise filter, which limits
the maximum input frequency (read chapter 7).
A sensor supply voltage of 8.2, 12 or 24 V DC can be provided with external
power supply. For a signal detection level of 50% of the supply voltage: please
refer to "active signals".
Terminal connections - PNP signal input (typical)
+3V, +8,2V, +12V, +24V DC
+3V, +8,2V, +12V, +24V DC
