Danfoss SonoSelect 10 and SonoSafe 10 Ultrasonic Heat Meters
Technical Specifications and Ordering Information
Product Overview
The Danfoss SonoSelect 10 and SonoSafe 10 are compact ultrasonic heat meters designed for measuring energy consumption in heating, cooling, and combined heating/cooling applications. They are built for remote reading (AMR) and utilize ultrasonic flow measurement technology combined with Pt1000 temperature sensors and a calculation unit.
Key Features:
- Proven ultrasonic measurement principle for long service life.
- No straight pipe run requirements.
- Low pressure drop (up to 0.03 bar at qp).
- Large LCD display (85 x 35 mm) with 8 digits, navigation menu, and information panel.
- Compact design.
- Extensive log for changes and errors.
- 4 years of data storage (annual and monthly values).
- Expandable with communication modules (e.g., M-Bus, pulse outputs).
- Battery powered (3.6 V) or mains powered (230 V).
- Communication speeds up to 9600 bps.
- Optional Android application (SonoApp) via Bluetooth.
Image: Danfoss SonoSelect 10 ultrasonic heat meter, showing the display, temperature sensor cable, and connections.
SonoSelect 10 vs. SonoSafe 10 Specifics
| Feature | SonoSelect 10 | SonoSafe 10 |
|---|---|---|
| Battery Life | 16 + 1 year (from production date) | 16 + 1 year (from production date) |
| Application | Heating, cooling, or combined heating/cooling | Heating |
| Configuration Flexibility | Inlet/outlet configurable on-site; energy unit configurable on-site; communication module slot. PUR or silicone cable (1.5m) for flexible installation. | Inlet/outlet configurable on-site; energy unit configurable on-site; communication module slot. PVC cable (0.5m). |
| Accuracy & Calculation | EN1434 Class 2; flow and energy calculated every 0.5 seconds. | EN1434 Class 2; flow and energy calculated every 2 seconds. |
| Security | Tamper detection triggers alarm if meter is opened. Data authenticity diagnostics. IP65 rated calculator unit. Reverse flow indicator. | Tamper detection triggers alarm if meter is opened. Data authenticity diagnostics. IP65 rated calculator unit. Reverse flow indicator. |
| Software Tools | Installation tool (setup, configuration); commissioning tool (location linking); operation tool (remote reading, diagnostics). | Installation tool (setup, configuration); commissioning tool (location linking); operation tool (remote reading, diagnostics). |
Technical Specifications
Overall Heat Meter
Application: Heating, cooling, or combined heating/cooling.*
Medium: Water with pH 7-9.5, conforming to VDI 2035, VdTÜV TCh 1466.
Approvals: Class 2 & 3 per EN1434, MID (DK-0200-MI004-034), CPA per JJG225-2010. National approvals include Denmark, Switzerland, Germany, Austria.
Measurement Cycle: Flow: 0.5s (SonoSelect 10) / 2s (SonoSafe 10); Energy: 0.5s (SonoSelect 10) / 2s (SonoSafe 10); Temperature: 4s (SonoSelect 10) / 10s (SonoSafe 10).
Approved Metrological Range:
- SonoSelect 10: ΔΘ: 3-90 K, Θ: 5-95 °C; ΔΘ: 3-125 K, Θ: 5-130 °C
- SonoSafe 10: ΔΘ: 0.25-100 K, Θ: 0-105 °C; ΔΘ: 0.25-130 K, Θ: 0-140 °C
*Dual-function heat meters are only available in the approved metrological range of 5-95 °C.
Temperature Limits (Energy Calculation): SonoSafe: 5-95 °C; SonoSelect: 5-130 °C.
Operating Ambient Temperature: Class A: 5-55 °C (indoor, no condensation).
Storage Temperature: -25-60 °C.
Mechanical Environment: Class M2.
Electromagnetic Environment: Class E1.
Calculator Specifications
Power Supply: 3.6 V DC Lithium battery (SonoSelect: 2x AA, SonoSafe: 1x AA) or 230 V AC mains.
Battery Life: 16 + 1 year*.
Mains Supply: 230 V AC, ±10/-15% tolerance, 50/60 Hz.
Power Consumption: < 2.5 VA.
Display: LCD 85 x 35 mm, 8 digits (11.5 mm character height), menu navigation.
Units: MWh, kWh, GJ, Gcal, °C, K, m³, m³/h, l/h.
IP Rating: 65.
Memory: 4 years of data (annual/monthly values), available from FW01.06.00.
Optical Interface: Conforms to EN62056-21, protocol EN13757-3 (2400/4800 baud).
Communication: Wired M-Bus per EN13757-3 (300-9600 baud). Includes 1m cable (PUR for SonoSelect, PVC for SonoSafe).
Additional Communication: 1 slot for communication modules (factory fitted or retrofitted).
Flow Meter Specifications
| Parameter | DN15 | DN20 | DN25 | DN32 |
|---|---|---|---|---|
| Nominal Flow (qp) [m³/h] | 0.6, 1.5 | 1.5, 2.5 | 3.5, 6.0 | 6.0 |
| Max Flow (qs) [m³/h] | 1.2, 3 | 3, 5 | 7, 12 | 12 |
| Min Flow (qi*) [m³/h] | 0.006, 0.015 | 0.015, 0.025 | 0.035, 0.06 | 0.06 |
| Start Flow (qc) [m³/h] | 0.0012, 0.003 | 0.003, 0.005 | 0.007, 0.012 | 0.012 |
| Overload Flow (qss) [m³/h] | 1.32, 3.3 | 3.3, 5.5 | 7.7, 12.3 | 12.3 |
| Pressure Loss (at qp) [mBar] | 30, 150 | 150, 160 | 130, 220 | 220 |
| Kv Values | 3.46, 3.87 | 6.25, 9.71 | 9.71, 12.79 | 12.79 |
| Connection | G¾" (110mm) | G1" (130mm) | G1¼" (160mm) | G1½" (260mm) |
| Pressure PN [bar] | 25 (SonoSelect) / 16 (SonoSafe) | 25 | ||
| IP Rating | 68 (SonoSelect) / 65 (SonoSafe) | 65 | ||
| Temperature Limits [°C] | 0-105 & 0-130 (SonoSelect) / 0-105 (SonoSafe) | 0-105 (SonoSafe) / 0-130 (SonoSelect) | ||
| Cable Length | 1.5m (SonoSelect: PUR/Silicone), 0.5m (SonoSafe: PVC) | 1.5m (SonoSelect: PUR/Silicone), 0.5m (SonoSafe: PVC) | ||
| Mounting | Any position, no inlet/outlet restrictions. | |||
Temperature Sensor Specifications
Type: Pt1000, short direct, 2-wire.
Size: Ø 5.2 mm, length: 26 mm.
Fitting: M10 x 1 mm, brass with sealing cone.
Cable Length: 1.5 m.
Accuracy: Class B (EN60751).
Temperature Range: SonoSafe: 5-95 °C; SonoSelect: 0-150 °C.
Approved Temperature Range (EN60751): SonoSafe: 0-105 °C; SonoSelect: 0-150 °C.
Temperature Difference (EN60751): SonoSafe: 3-105 K; SonoSelect: 3-150 K.
Pressure: 25 bar.
Communication Modules
Modules allow adaptation to various applications. Each module has its own microcontroller and is powered by its own battery. Local copies of meter parameters are stored for communication. Data is updated every 10 minutes. Modules are galvanically isolated.
Wired M-Bus Module with 2 Pulse Inputs
Features M-Bus communication and two programmable pulse inputs. Pulse inputs can be programmed independently.
M-Bus: Primary/Secondary addressing via serial number.
Baud Rates: 300, 2400, 4800, 9600.
Protocol: EN1434-3 and EN13757-3.
Battery Life: 16 + 1 year.
Wireless OMS Module, 868.95 MHz with 2 Pulse Inputs
Features wireless OMS communication and two programmable pulse inputs. Pulse inputs can be programmed independently.
Standard: Open Metering System (OMS) v4.0.2.
Frequency: 868.95 MHz.
Transmission Power: 10 mW (max 25 mW).
Encryption: 128-bit AES.
Transmission Interval: Fixed network: 15 min; Remote reading: 2 min.
Battery Life: 16+1 year (dependent on usage, e.g., 10+1 year for 2 min interval).
Module with 2 Pulse Inputs
Provides 2 pulse inputs for volume or energy. Programmable pulse values and behavior.
Pulse Value: 0.001 to 1 m³ per pulse.
Voltage/Current: ≤ 6.0 V, ≤ 0.1 mA.
Pulse Inputs: Conforms to EN1434-2, section 7.1.5.
Battery Life: 16 + 1 year.
Application Schematics
Diagram 1: Heating system schematic showing temperature sensors on the supply (red) and return (blue) lines.
Diagram 2: Cooling system schematic showing temperature sensors on the supply (blue) and return (red) lines.
Accuracy
Graph: Flow meter accuracy (error %) versus flow rate (%). The graph illustrates compliance with EN1434 Class 2 accuracy requirements for the production limits at 50°C.
Pressure Loss
Graph: Pressure loss (mbar) versus flow rate (l/h) for various meter sizes (DN15, DN20, DN25, DN32), showing different pressure loss curves.
Menu Structure
The heat meter features a three-level menu structure:
- 1. ZANKA (Display Level): Shows accumulated data (heating/cooling energy and volume), current readings (temperature, flow), and status.
- 2. ZANKA (Current Data): Access to real-time parameters like supply/return temperature, flow rate, and power.
- 3. ZANKA (History Log): Access to historical data, including daily, monthly, and billing records.
The display automatically turns off after 120 seconds of inactivity.
Installation Guidelines
Mounting: Can be installed in any orientation on the pipe axis. Avoid positions where air can accumulate.
Angle: Maximum 45° tilt is recommended.
Diagram: Shows correct installation angles and pipe orientation, advising against positions that trap air.
Dimensions
| Dimension | DN15 | DN20 | DN20 + Extension | DN25 | DN25 | DN32 |
|---|---|---|---|---|---|---|
| G¾" | G1" | G1" | G1¼" | G1¼" | G1½" | |
| A | 12 mm | 14 mm | 14 mm | 16 mm | 16 mm | 18 mm |
| B | 110 mm | 130 mm | 190 mm | 160 mm | 260 mm | 260 mm |
| C | 33.5 mm | 38 mm | 38 mm | 40.5 mm | 40.5 mm | 40.5 mm |
| D | 74.5 mm | 77.5 mm | 77.5 mm | 80.5 mm | 80.5 mm | 80.5 mm |
| E | 32 mm | 32 mm | 32 mm | 41 mm | 41 mm | 41 mm |
| Weight | 700 g | 800 g | 1100 g | 1100 g | 1500 g | 1600 g |
Ordering Information Summary
Danfoss offers a wide range of configurations for the SonoSelect 10 and SonoSafe 10 heat meters to suit various installation requirements. Key configurable options include:
- Product Series: SonoSelect 10 (Heating, Cooling, Combined) or SonoSafe 10 (Heating).
- Size (DN): Available from DN15 up to DN32.
- Nominal Flow Rate (qp): Ranging from 0.6 m³/h to 6.0 m³/h.
- Pressure Rating (PN): Typically PN25 for SonoSelect and PN16 for SonoSafe.
- Temperature Range: Options up to 95°C or 130°C (SonoSelect) and up to 95°C (SonoSafe).
- Cable Type: PUR or Silicone for SonoSelect, PVC for SonoSafe, with various lengths.
- Power Supply: Battery (3.6V DC) or Mains (230V AC).
- Communication Modules: Integrated options include no communication, Radio OMS (868.95 MHz) with pulse inputs, Wired M-Bus with pulse inputs, and dedicated pulse inputs/outputs.
Detailed part numbers and specific configurations can be found in the comprehensive ordering tables within the original technical document.
Accessories
A range of accessories are available for installation and integration:
- Connection kits for various pipe sizes and pressure ratings.
- Temperature sensor adapters and T-pieces.
- Ball valves.
- Wall mounting kits.
- Cable extensions.
- Seals and gaskets.
- Batteries.
- Communication modules (M-Bus, Wireless OMS, Pulse Inputs/Outputs).
- Bluetooth security key.
Detailed part numbers and specifications for each accessory are provided in the original document.
