3
pulse
52/
54
11
10
GND
pulse
11
10
pulse
11
10
VCC 2,5 … 3,6 V
U = 3 … 30 V
Imax = 20 mA
tp
tp
53/
55
52/
54
53/
55
52/
54
53/
55
GND
Uhigh = 2,5 … 3,6 V
Ulow = 0 … 0,3 V
pulse
52/
54
11
10
GND
pulse
11
10
pulse
11
10
VCC 2,5 … 3,6 V
U = 3 … 30 V
Imax = 20 mA
tp
tp
53/
55
52/
54
53/
55
52/
54
53/
55
GND
Uhigh = 2,5 … 3,6 V
Ulow = 0 … 0,3 V
pulse
52/
54
11
10
GND
pulse
11
10
pulse
11
10
VCC 2,5 … 3,6 V
U = 3 … 30 V
Imax = 20 mA
tp
tp
53/
55
52/
54
53/
55
52/
54
53/
55
GND
Uhigh = 2,5 … 3,6 V
Ulow = 0 … 0,3 V
pulse
52/
54
11
10
GND
pulse
11
10
pulse
11
10
VCC 2,5 … 3,6 V
U = 3 … 30 V
Imax = 20 mA
tp
tp
53/
55
52/
54
53/
55
52/
54
53/
55
GND
Uhigh = 2,5 … 3,6 V
Ulow = 0 … 0,3 V
pulse
52/
54
11
10
GND
pulse
11
10
pulse
11
10
VCC 2,5 … 3,6 V
U = 3 … 30 V
Imax = 20 mA
tp
tp
53/
55
52/
54
53/
55
52/
54
53/
55
GND
Uhigh = 2,5 … 3,6 V
Ulow = 0 … 0,3 V
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
fmax = 1 Hz,
Pulse-duty factor 1:1 to 1:9
Input capacitance: approx. 15 nF,
Input resistance approx 470 kOhm
Ext. Voltage
3V … 30 V DC
Max. current
20 mA
Output frequency
1 Hz (8 Hz dynamically switching, if output
with 1 Hz is not possible)
Switching times:
1 Hz: 400ms < tp < 600 ms
8 Hz: 50ms < tp < 80 ms
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
fmax = 1 Hz,
Pulse-duty factor 1:1 to 1:9
Input capacitance: approx. 15 nF,
Input resistance approx 470 kOhm
1 Hz Version:
fmax = 1 Hz, Pulse-duty factor 1:1 to 1:9
Uhigh = 2,5 … 3,6V, 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 … 3,6V, Ulow = 0 … 0,3 V, Input capacitance:
approx. 2,5 nF, Input resistance approx. 850 kOhm
Passive with
mechanical
contact (Reed)
Passive with
mechanical
contact (Reed)
Passive with
open drain FET
Passive with
open drain FET
Active f.ex. with
C-MOS Gate
pulse
52/
54
11
10
GND
pulse
11
10
pulse
11
10
VCC 2,5 … 3,6 V
U = 3 … 30 V
Imax = 20 mA
tp
tp
53/
55
52/
54
53/
55
52/
54
53/
55
GND
Uhigh = 2,5 … 3,6 V
Ulow = 0 … 0,3 V
Flow sensor input
Electrical connection
Schematic diagram
Connection data
Electrical connection
Schematic diagram
Connection data
Technical data additional inputs
Connection data outputs
Technical data flow sensor input
The duration of initial verification validity in Germany
remains 5 years for heat meters. After this period has
expired, the measuring device may no longer be used
for billing in commercial use. The regulations resp.
validity period may vary in other countries of the EU.
Electro-magnetic interference
multidata fulfils the national and international
requirements for interference resistance. To
avoid malfunctions due to other interferences,
do not install fluorescent lamps, switch cabinets
U=3…30V
V Out
Pulse
GND
white
yellow
green
brown
Imax=20mA*
Typical connection*
(*) The connection of the external resistor could be
necessary to ensure an integrated current limiter
