User Manual

40
Smart Infrastructure
CE2N5324en
2019-06-27
Pulse module
WZU-P2
● Type
● Voltage
● Current
● Classification per EN 1434-2
– Voltage drop
● Classification per EN 1434-2
– Voltage drop
Dielectric strength
Open collector
Max. DC 30 V
Max. 30 mA
OB
Approx. 1.3 V at 20 mA
OC
Approx. 0.3 V at 0.1 mA
500 V
eff
against ground
M-bus module
WZU-MB G4
WZU-MI
M-bus slave interface
● Voltage
● Power consumption
● Address
● Baud rate
● Polarity
● Galvanic isolation
– From meter
– From pulse inputs
As per EN 1434-3 and EN 13757-2 /-3
Max. DC 50 V
1 M-bus load (1.5 mA)
Primary or secondary
300, 1200, 2400, 4800, 9600 baud
Any
Yes
No
M-bus module WZU-MI
Part of pulse input
Pulse inputs
● Number of inputs
● Module battery
– Battery type
– Battery voltage
– Battery life
● Pulse duration (Low)
● Pulse duration (High)
● Frequency
● Polarity
● Galvanic isolation
– From meter
– From M-bus inputs
● Pulse value
● Display
● Output voltage
● Internal resistance
As per EN 1434-2, class IB
2
1 BR2477A (LiCF)
3 V
Operating: Up to 5 years
Storage time: +1 year
If M-bus voltage is fed to the module for at
least 90% of the operating time, battery life
is extended to 10 years
≥50 ms
≥50 ms
Max. 10 Hz
Yes
Yes
No
0.01 to 10,000.00 liters per pulse
In increments of 0.01 liter per pulse
In m3, 7 digits, without or with 1 decimal
place, depending on parameter setting
Approx. 3.3 V
Approx. 1 MΩ
Approx. 3 μA