Siemens UH50 Series Manual page 33

- CL module
WZU-CL
- M-bus modules
WZU-MB/WZU-MB G4
WZU-MI
- M-bus module
WZU-MI
Part of pulse input
Siemens
Building Technologies
- Type
- Voltage
- Current
- Classification as per EN 1434-2
- Voltage drop
- Classification as per EN 1434-2
- Voltage drop
Dielectric strength
Passive current loop
- Voltage
- Current
- Voltage drop
- Baud rate
- Galvanic isolation
- Polarity
M-bus slave interface
- Voltage
- Current draw
- Addressing
- Baud rate
- Polarity
- Galvanic isolation
- From meter
- From pulse inputs
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 valency
- Display
- Output voltage
- Internal resistance
- Source current
Ultrasonic heat and cooling energy meters UH50..
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 against groud
eff
As per EN 62056-21 mode B
Max. DC 30 V
Max. 30 mA
<2 V at 20 mA
2400 baud, fixed
Yes
Yes
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
Optional
Yes
No
As per EN 1434-2, class IB
2
1 BR2477A (LiCF)
3 V
In operation: 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 liters per pulse
3
In m , 7 digits, without or with 1 decimal place,
depending on parameter setting
Approx. 3.3 V
Approx. 1 M
Approx. 3 A
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CE2N5324en
2013-01-14