Data Sheet for Product

45
Smart Infrastructure
CE2N5324en
2021-03-
19
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
● Source current
● Pulse input closed (Low)
– Switching threshold low
– Resistance
● Pulse input open (High)
– Switching threshold high
– Resistance
● Max. cable length
As per EN 1434-2, class IB
2
1 BR2477A (LiCF)
3 V
Operating: Up to 5 years
Storage: +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
<0.2 V
<50 kΩ
Collector not fully activated
≥6 MΩ
10 m