DTU-40 Radio-Signal Digitermo Ultrasonic Heat Meter
The Digitermo DN40 ultrasonic heat meter is designed for reliable measurement in high-flow systems. With its durable design and advanced communication features, it offers a professional solution for large-scale projects.
Digitermo DN 40 Ultrasonic Heat Meter is developed for reliable measurement in high-flow systems. With its durable design and advanced communication features, it offers a professional solution for large-scale projects.
The DN 40 model is suitable for use in large apartment complexes, hotels, business centers and industrial facilities. Its long-lasting battery construction and wireless communication support minimize maintenance costs.
✅ Wireless M-Bus communication
✅ OMS open-protocol support
✅ High accuracy with Jumo sensor
✅ Advantage of use in hybrid systems
| Measurement technology: Ultrasonic energy measurement with no moving parts. Dual application: Monitoring of heating and cooling energy. Communication: Wired M-Bus + Wireless M-Bus (OMS). Display: Backlit LCD; indicators for energy, flow, temperature, time/date, battery status, fault and flow direction. Remote monitoring: Hourly and daily reading; access to historical consumption records. Optical port: Service and device interface. Battery: 26500 C size; up to 10 years battery life as stated in the technical brochure. Design: Brass body, horizontal/vertical installation. Measurement standard: EN 1434 Class 2; MID product declaration. Applications: Centrally heated/cooled residences, estates, commercial buildings and remote-reading infrastructures. |
| Model | DTU DN40 |
|---|---|
| Nominal diameter | DN40 |
| Communication | Kablolu M-Bus + Wireless M-Bus (OMS) |
| Body length | 200 mm |
| Connection size | G2"" |
| Minimum flow (qi) | 0,1 m³/h |
| Nominal flow (qp) | 10 m³/h |
| Maximum flow (qs) | 20 m³/h |
| Temperature measuring range | 1–105 °C (document) |
| Minimum temperature difference | 3,75 K (document) |
| Lower temperature-difference limit | 5,90 °C (document; confirmed) |
| Temperature sensor | PT1000 |
| Measuring class | EN 1434 Class 2 |
| Operating pressure | 1,6 MPa |
| Pressure loss | 10 kPa (common table) |
| Protection class | IP65 |
| Mechanical / electromagnetic class | M1 / E1 |
| Mounting type | Horizontal / vertical |
| Battery | 26500 C boy |
| Battery life | up to 10 years (product declaration) |
| Historical data | in the catalog LCD menu 12-month log |
| Optical interface | Yes |
| LCD display | Backlit, multifunction" |
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