Ultrasonic apartment / domestic water meter IUWS
The IUWS ultrasonic water meter guarantees reliable recording of the meter data for individual consumption billing in the residential or domestic water sector.
The IUWS ultrasonic water meter guarantees reliable recording of the meter data for individual consumption billing in the residential or domestic water sector. The IUWS is equipped with a large, easy-to-read 9-digit LC display. The integrated radio interface is preset at the factory to wireless M-Bus (OMS) or LoRaWAN®. The radio interface can be switched from wM-Bus to LoRaWAN® and vice versa at any time using the ZENNER Device Manager Basic app.
Parallel operation of both radio technologies is also possible: The ‘parallel radio’ function allows the radio water meter to transmit measurement data simultaneously via wM-Bus and LoRaWAN®.
All variants are approved for any installation and are therefore also suitable for riser and downpipe installation. A head-down mounting is possible.
The riser and downpipe variants allow uncomplicated replacement in existing pipelines. All materials, which are used in the drinking water section, comply with the required standards, guidelines and the current German drinking water approval (other country-specific drinking water approvals on request).
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Ultrasonic apartment / domestic water meter IUWS
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Performance characteristics in overview
- Ultrasonic technology
- Any installation position (even “head down”)
- Parallel operation of wM-Bus & LoRaWAN® radio possible
- Switchable radio technology
- Transmission of the medium and ambient temperature in the wM-Bus radio protocol (depending on the selected radio scenario)
- Optionally available as a lead-free version (ECO-Brass CW724R)
- Highest precision and reliability even in case of low flow rates
- Insensitive to deposits and particles
- Battery-operated, electronic LCD register with galvanically isolated NFC interface
- Smart Metering functions (Warnings, alarms)
- Retrofitting of an external NDC radio module (e.g. for shaft meters) possible
- Certified according to DVGW guideline W 406
- OMS certification for BSI-compliant smart meter gateway connection
Applications
- For consumption measuring of drinking water and unpolluted service water up to 50 °C
AMR options
- Integrated wM-Bus or LoRaWAN® radio interface
- NFC interface (= Near Field Data Capture) for connecting an external NDC module and for device configuration
- Readout and configuration app (Device Manager Basic
Readout options of the measuring device via the NFC interface (Near Field Communication)
- Measuring instrument ID (serial number)
- Current (netted) consumption display or total volume in the event of an overflow
- Date / time
- Firmware version
- Up to 15 previous month’s values
- Temperature
- Key date / Key date volume
- Forward flow volume / Return flow volume
- Alarms or error messages
- Battery end
Datalogger – values in entries (max.)
- Due date values: 3
- Monthly- and half monthly values: 53
- Daily values: 460
- Hourly values: 1.440
- Backward flow: 50
- Volume analysis: 50
- Events: 64
- Short-term logger for the last 3 days: 12
Product options
| Measuring Principle |
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| Register |
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| Nominal Flow Q3 (≈ Qn) |
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| Nominal Diameter DN (mm) |
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| Nominal Diameter (inch) |
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| Length without connectors |
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| Metrological Class horizontal (max.) |
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| Communication Technologies |
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| Temperature |
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| Operating pressure (max.) |
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