8 | © Danfoss | Energy Meters | 2017.03
VUIGB702
Installation & User Guide
SonoSelect and SonoSafe
2 pulse input module
Once installed the meter will display the icon for pulse inputs in menu 2 of the display. Accumulated
volume is only readable by communication. The two pulse inputs can be programmed independently of
each other (see specification for pulse input module).
Pulse value
0.001 m³ to 1 m³ per pulse
Voltage supply
≤ 6.0 V
Source current
≤ 0.1 mA
High level input threshold
≥ 2 V
Low level input threshold
≤ 0.5 V
Pull-up resistor
100 kΩ
Pulse length
≥100 ms
Maximum frequency
≤ 5 Hz
Pulse inputs
According to EN1434-2, section 7.1.5 (Classification of pulse input
devices Class IB)
Battery life time
16+1 year
* Suitable for both electronic switch and Reed contact.
Data telegram
Wired M-bus
Standard telegram:
• Accumulated energy
• Accumulated volume
• Current flow
• Current power
• Supply temperature
• Return temperature
• Difference temperature
• Enclosure temperature
• Current time
• Hour counter factory
• Hour counter OK
Wireless M-bus (OMS)
Standard telegram fixed network:
• Accumulated energy
• Accumulated volume
• Current flow
• Current power
• SupplyTemperature
• ReturnTemperature
• CurrentTime