SSU20-3.5-CR-MPI Compact ultrasonic energy meters
Externally threaded, compact energy meters with built-in ultrasonic flow meter, intended for heating or cooling. We offer many different options, see the product sheet for more information.
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Specifications
| Power Supply | Exchangeable 3 V lithium battery, estimated lifetime 10 years. 24 V or 230 V power pack available as accessory. |
|---|---|
| Nominal diameter | DN20 |
| Flow, Qp | 3.5 m³/h |
| Type of measurement | Cooling |
| Communication interface | M-Bus with 3 pulse inputs |
| Length of flow meter | 130 mm |
| Thread on meter body | G1" |
| Media | Water only |
| Protection class | IP65 |
|---|---|
| Ambient humidity (non-condensing) | 5…95 % RH |
| Storage temperature | 1…60 °C |
| Temperature range cooling | 0...50 °C |
| Temperature range heating | 15...90 °C |
| Temperature resolution | 0.01 °C |
| Measurement cycle, temperature | 2...60 s |
| Measurement cycle, flow | 2 s |
| Display | LCD, 8 digits + special characters |
| Display units | MWh, kW, GJ, m 3 , m 3 /h (kWh, GJ, l , l/h, MW, MMBTU, Gcal), 3 decimal places. The unit for energy consumption can only be set while the energy consumption is ≤ 10 kWh. |
| Mechanical class | Class M1 (MID: 31.03.2004 annex I) |
| EMC | Class E1 (MID: 31.03.2004 annex I) |
| Cable length calculator | 85 cm |
| Cable length temperature sensor | 1.5 m (the other temperature sensor is integrated into the flow meter) |
| Diameter temperature sensor | 5 mm |
| Temperature sensor installation | Direct (see the accessories section) or indirect in a temperature sensor pocket per EN1434 |
| Temperature sensor requirements, heat meter | EU (MID) identification on the temperature sensors |
| Temperature sensor requirements, cooling meter | National German approval as a temperature sensor for cooling meters. Requirements in other countries may be different |
| Flow meter mounting position | Horizontal or vertical |
| Flow meter, point of installation | Return flow (if forward flow installation is needed, the installation position can be changed with the main button) |
| Flow meter temperature range | 15…90 °C |
| Measuring principle | Ultrasonic, time-of-flight |
| Accuracy according to MID | Class 2 |
Software & documentation
Product sheet
Instructions
Other documentation
Accessories
Brass threaded fitting with coupling ring and gasket
Brass threaded fitting with coupling ring and gasket
Brass threaded fitting with coupling ring and gasket
Brass threaded fitting with coupling ring and gasket
Ball valve with coupling ring and gasket
Ball valve with coupling ring and gasket
Ball valve with coupling ring and gasket
Ball valve with coupling ring and gasket
Ball valve with installation point for a temperature sensor (sockets M10x1)
Ball valve with installation point for a temperature sensor (sockets M10x1)
Ball valve with installation point for a temperature sensor (sockets M10x1)
Ball valve with installation point for a temperature sensor (sockets M10x1)
Supply flow adapter with gasket, for direct mounting of a temperature sensor in a T-piece
Supply flow adapter with gasket, for direct mounting of a temperature sensor in a T-piece
Threaded fit
Threaded fit
Optocoupler with USB interface
Software device monitor
230 V power pack
24 V AC power pack
Battery for SSU and SSCU