Fluidwell E018 User Manual

E119-P
FW_E119-P_M_v0301-02_EN Page 53
Sine-wave signal (Coil)
The unit can be used with flowmeters which have a coil output signal. Two sensitivity levels can be
selected (see
SETUP
4.1: FLOWMETER > SIGNAL[»29]):
● COIL LO: sensitivity 90 mVpp.
● COIL HI: sensitivity 20 mVpp. (type ZF offers sensitivity 10 mVpp; type ZG offers sensitivity 5
mVpp).
S2
Common system ground
S3
┴
V : 1.2V
S1
↓
+
ref
+
-
MEM
Fig.33: Terminals S1-S3: Coil signal input
Pulse-signal NPN / NPN-LP
The unit is suitable for use with flowmeters which have a NPN output signal:
● For reliable pulse detection under all circumstances, the signal should be above 1.4 V or below
1.0 V.
● Preferably use a sensor which is normally open and briefly closed (less power consumption).
● For better noise immunity (and if no high sensor input frequencies are expected), select signal
setting NPN-LP – low-pass signal noise filter which limits the maximum input frequency and
avoids pulse bounce (see
SETUP
4.1: FLOWMETER > SIGNAL[»29]).
S2
Common system ground
S3
NPN-LP*
┴
R
3V
S1
NPN-LP*
R
MEM
Fig.34: Terminals S1-S2: Pulse signal input NPN
Pulse-signal PNP / PNP-LP
The unit is suitable for use with flowmeters which have a PNP output signal:
● 3.0 V is offered on terminal S3 which must be switched by the sensor to terminal S2 (SIGNAL).
● For reliable pulse detection, the signal must always be above 1.4 V or below 1.0 V.
● For less power consumption, use a sensor which is normally open and briefly closed.
● For better noise immunity and if no high sensor input frequencies are expected, select signal
setting PNP-LP (low-pass signal noise filter) which limits the maximum input frequency to avoid
pulse bounce (see
SETUP
4.1: FLOWMETER > SIGNAL[»29]).

Fluidwell E018 Specifications

General

Brand	Fluidwell
Model	E018
Category	Measuring Instruments
Language	English