Zenner multidata WR3 - Technical Data Pulse Inputs; Pulse Outputs

18
Flow sensor input
Electrical
connection
Schematic diagram Connection data
Passive with me-
chanical contact
(Reed)
1 Hz Version: fmax = 1 Hz,
Pulse-duty factor: 1:1 to 1:9
Input capacitance: approx 10 nF,
Input resistance: approx 850 kOhm
100 Hz Version: not allowed
Passive with
open drain FET
1 Hz. Version: fmax = 1 Hz,
Pulse-duty factor: 1:1 to 1:9
Input capacitance: approx 10 nF,
Input resistance: approx 850 kOhm
100 Hz Version: fmax = 30 Hz,
Pulse-duty factor: 1:1
Input capacitance: approx 2.5 nF,
Input resistance: approx 850 kOhm
Active f. ex. with
C-Mos Gate
1 Hz Version: fmax = 1 Hz,
Pulse-duty factor: 1:1 to 1:9
Uhigh = 2.5 … 3.6 V,
Ulow = 0 … 0.3 V,
Input capacitance: approx 10 nF,
Input resistance: approx 850 kOhm
100 Hz Version:
fmax = 100 Hz, Pulse-duty factor: 1:1
Uhigh = 2.5 … 3.6 V,
Ulow = 0 … 0.3 V,
Input capacitance: approx 2.5 nF,
Input resistance: approx 850 kOhm
Connection additional inputs
Electrical
connection
Schematic diagram Connection data
Passive with me-
chanical contact
(Reed)
fmax = 1 Hz
Pulse-duty factor: 1:1 to 1:9
Input capacitance: approx 15 nF
Input resistance: approx 470 kOhm
Passive with
open drain FET
fmax = 1 Hz
Pulse-duty factor: 1:1 to 1:9
Input capacitance: approx 15 nF
Input resistance: approx 470 kOhm
Connection data outputs (energy and/or volume)
Ext. voltage max.
current
3V…30V
DC 20mA
Typical connection (*)
Output
frequency
1 Hz
(8 Hz dynamically switching,
if output with 1 Hz is not
possible)
Switching times:
1 Hz: 400 ms < tp < 600 ms
8 Hz: 50 ms < tp < 80 ms
(*) The connection of an external
resistor may be necessary to ensure
the current limitation.
Technical data pulse inputs / pulse outputs
English
11
10
11
10
pulse
11
10
GND
pulse
VCC 2,5 … 3,6 V
Uhigh = 2,5 … 3,6 V
Ulow = 0 … 0,3 V
52/
54
53/
pulse
52/
54
53/
55
tp
tp
U = 3 … 30 V
Imax = 20 mA*
52/
54
53/
55
GND
Pulse
V Out