HF010PEN_v0403_03 Atex_IECEx_CSA_FM
Page 20
REMARKS: TERMINAL CONNECTORS:
Terminals 1-3; Flowmeter input
:
Three basic types of flowmeter signals can be connected to the unit: pulse, active pulse or coil. The
screen of the signal wire must be connected to the common ground terminal
The input signal type has to be selected with the correct SETUP-function (read par. 3.2.3.)
Coil-signal:
The F010-P is suitable for use with flowmeters which have a coil output signal.
Two sensitivity levels can be selected with the SETUP-function:
COIL LO: sensitivity from about 90mVp-p.
COIL HI: sensitivity from about 20mVp-p.
Type ZF (option): offers for setting COIL HI : sensitivity from about 10mVp-p.
Type ZG (option): offers for setting COIL HI : sensitivity from about 5mVp-p.
Pulse-signal NPN / NPN-LP:
The F010-P 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 par. 3.2.3.
INTERNAL
EXTERNAL
Coil signal input
3
2
COIL
Common ground unit
COIL
1
GND
Input
sensitivity
selectable:
coil high / low
+
V ref.
1.2V DC
shielding
INTERNAL
EXTERNAL
NPN signal input
2
Common ground unit
SIGNAL
1
GND
shielding
NPN
+ 3.2V DC
100K
low-pass filter
selection NPN-LP
