Data sheet
SonoMeter 30
Energy Meters
Description
The Danfoss SonoMeter 30 is a range of ultrasonic, compact energy meters intended for measuring energy consumption in heating and cooling applications for billing purposes. The meters are designed for remote meter read-out (AMR).
SonoMeter 30 energy meters consist of an ultrasonic flow sensor, a pair of Pt500 temperature sensors and a calculator with integrated circuits for temperature
measurement, flow calculation and energy calculation.
Features
•Available in nominal flow rates qp 0.6, 1.5, 2.5, 3.5, 6.0, 10.0, 15.0, 25.0, 40.0 and 60 m3/h
•Housings with thread (G3/4 to G2) or flange (DN 20 to DN 100) connections
•MID approval for ultrasonic energy meter with dynamic range of 1:100 (qi:qp) in class 2
•Optional MID approved dynamic range of 1:250 in class 2 for qp 1.5, 2.5, 6.0, 10 and 15 m3/h
•Temperature range 5 - 130 °C, PN 16 or 25 bar
•Short overload temperature up to 150 °C
•Glycol mixtures as option up to incl. DN 50 (not MID certified)
•Calculator with IP 65 protection class as standard
•Flow sensor with IP 65 protection class as standard (IP67 for combine heating and cooling applications)
•Return or supply pipe installation, for vertical or horizontal mounting
•Battery lifetime for at least 11 years
•Low pressure loss, insensitive to dirt
•No calming sections needed before or after the flow sensor (DN 15-DN 50)
•For DN 65 to DN 100 calming sections are needed (5 x DN on inlet and 3 × DN on outlet of flow sensor)
•Remote reading via M-Bus, radio OMS 868 Mhz, RS 485 Modbus, BACnet, pulse output or optial interface
•Two pulse inputs or outputs as standard (default delivered as pulse output - can be changed)
© Danfoss | Energy Meters | 2020.08 |
AI206286471334en-010701 | 1 |
Data sheet |
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SonoMeter 30 |
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Technical specifications |
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Diameter |
DN 15 |
DN 20 |
DN 15 |
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DN 20 |
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DN 20 |
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DN 25 |
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DN 25 |
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DN 40 |
DN 50 |
DN 65 |
DN 80 |
DN 100 |
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Connection type |
G¾B |
G1B |
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FL |
G¾B |
G1B |
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FL |
G1B |
G1B |
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G1B |
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FL |
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G1¼B |
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FL |
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G1¼B |
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FL |
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G2B |
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FL |
FL |
FL |
FL |
FL |
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Overall length, mm |
110 |
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190 |
110 |
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190 |
130 |
130 |
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190 |
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260 |
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260 |
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300 |
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270 |
300 |
300 |
360 |
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Flow rate: |
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Nominal (m3/h) |
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0.6 |
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1.5 |
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2.5 |
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3.5 |
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6 |
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10 |
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15 |
25 |
40 |
60 |
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Maximum (m3/h) |
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1.2 |
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3 |
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5 |
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7 |
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12 |
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20 |
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30 |
50 |
80 |
120 |
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Standard min. (l/h) |
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6 |
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15 |
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25 |
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35 |
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60 |
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100 |
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150 |
350 |
400 |
600 |
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Pressure loss at qp (mbar) |
70 |
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9 |
171 |
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58 |
72 |
198 |
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94 |
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40 |
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100 |
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180 |
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120 |
200 |
180 |
180 |
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Kvs values (for nominal flow) |
2.27 |
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6.32 |
3.63 |
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6.23 |
5.59 |
5.62 |
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8.15 |
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17.50 |
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18.97 |
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23.57 |
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43.50 |
55.9 |
94.3 |
141.4 |
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Max. operating pressure |
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16 bar / 25 bar |
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Flow sensor temp. range |
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5 to 130 °C (short overload to 150 °C) |
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Flow sensor cable length |
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1.2m, 2.5m and 5m (optional) |
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Medium |
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Water quality with pH 7 to 9.5 |
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Measuring cycles |
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Volume every 1 sec., energy, temperature sensors and display update every 16 sec. |
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Temperature sensors |
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Pt 500 ø 5.2 mm with 2-wire leads |
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Temp. sensor cable length |
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1.5 m optional 3 m, 5 m and 10 m cable |
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Max. temp. diff. (Δθmax) |
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150 K |
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Min. temp. diff. (Δθmin) |
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3.0 K |
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Starting temp. diff. (Δθ) |
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0.15 K |
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Temp. measuring range |
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0 to 180 °C |
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Supply voltage |
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3.6 V DC Lithium-battery (AA cell) / Mains supply 24 V AC/DC. |
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Mains supply 230 V AC (with external 230 V AC to 24 V AC transformer). |
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Battery life time |
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min. 11 years (including AMR communication) |
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Approval |
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EN1434 class 2 |
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Environmental class |
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EN1434 class C |
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Ambient class |
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class E2 + M1 |
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Protection class |
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Calculator: IP 65; Flow sensor: IP 65 (IP67 for heat and cooling meter) |
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Ambient operating temp. |
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Calculator: 5 to 55 °C; Flow sensor: -30 to 55 °C |
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Ambient storage and |
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5 to 55 °C |
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transportation temp. |
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Max. ambient humidity |
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93% rel. humidity |
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Display |
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LCD, 8-digit |
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Display units |
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MWh - kWh - GJ - Gcal - °C - m3 - m3/h |
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Display values |
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Energy - volume - flow rate - power - temperatures |
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Application drawings
Flow direction
Return pipe installation
2 | AI206286471334en-010701 |
© Danfoss | Energy Meters | 2020.08 |
Data sheet |
SonoMeter 30 |
Application drawings
(continuous)
Flow direction
Supply pipe installation
Accuracy
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5 |
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<![if ! IE]> <![endif]>[%] |
2 |
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1 |
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<![if ! IE]> <![endif]>Error |
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-1 |
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-2 |
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Key |
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-3 |
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EN1434 class 2 |
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-4 |
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typical accuracy |
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-5 |
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Flow measurment accuracy
© Danfoss | Energy Meters | 2020.08 |
AI206286471334en-010701 | 3 |
Data sheet |
SonoMeter 30 |
Design and function |
Optical interface |
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Optical interface is integrated into the front panel of the calculator. It is designed for data reading |
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via M-bus protocol and parameterization of the meter using SonoMeter 30 UserConfig software and |
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optical head OG-1-USB. |
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The optical interface is activated by pressing the control button and shuts automatically off 5 minutes |
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after the last pressing button or after completing data transmission via interface. |
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Wired M-Bus interface |
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The energy meter has 1 slot for an additional communication module. The internal M-Bus module |
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provides data reading possibility via M-Bus protocol: |
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• M-Bus protocol according to EN13757-3 standard |
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• 2-wire with polarity reversal protection |
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• Electrical isolation |
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• •Maximum voltage 50 V DC |
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• Current drawn: one M-Bus load (1.5 mA) |
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• Primary or secondary addressing |
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• Baud rate 2400 bps |
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• Battery lifetime min. 11 years (2 AA cell) |
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• Battery supply communication is limited on every 15 min at 2400 baud rate or faster, 70 meters |
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on bus |
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• Fastest reading interval at mains supply: no limits |
Radio OMS 868.95 MHz interface
•The module can provide data reading via radio module:
•Wireless M-Bus protocol according to EN13757-4
•OMS (open metering system) compatible, compliant to OMS 4.0.2
•T1 mode (unidirectional)
•Sending interval every 90 seconds (suitable for ‘walk by’ readings)
Modbus RS-485 module
RS-485 module is Modbus RTU protocol and a serial interface for communication with external devices.
Baud rate |
1200, 2400, 4800, 9600(default), 38400, 56000, 57600, 115200 bps |
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Polarity independent connection for power supply – connectors 60 |
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and 61. |
Power supply |
Voltage 12-24 V AC/DC. |
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Maximum power consumption 2 W max. |
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Typical supply current 50 mA. |
BACnet |
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Baud rate |
9600, 19200, 38400 –default, 57600, 76800, 115200 bps |
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Polarity independent connection for power supply – connectors 60 |
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and 61. |
Power supply |
Voltage 12-24 V AC/DC. |
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Maximum power consumption 2 W max. |
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Typical supply current 50 mA. |
2 pulse inputs or 2 pulse outputs (set up by jumpers)
There is a connector J on the calculator plate between the temperature sensors and pulse input / output connection terminals. By means of connecting or opening the connector contacts, the pulse inputs or outputs are activated.
Note: On delivery the heat meter is configured with two outputs.
Pulse inputs (not default, jumper set needed)
Number of pulse inputs |
2 |
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Measurement units |
m3 (51, 52), kWh (52, 53) or MWh, GJ, GCal |
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Pulse value |
programmable by SonoMeter 30 UserConfig Software |
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Min. pulse time |
100 ms |
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Pulse type |
IB by class IB according to EN1434-2 |
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Max. frequency of input |
3 Hz |
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pulses |
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Max. voltage of input pulses |
3.6 V |
4 | AI206286471334en-010701 |
© Danfoss | Energy Meters | 2020.08 |
Data sheet |
SonoMeter 30 |
Design and function
(continuous)
Pulse outputs (default, no jumper set)
Number of pulse outputs |
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2 |
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Measurement units |
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m3 (51, 52), kWh (52, 53) or MWh, GJ, GCal, |
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Pulse value |
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according to the table below |
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Pulse type |
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open collector, permissible current up to 20 mA, voltage up to |
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50 V, class OB according to EN1434-2 |
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Max. frequency of output pulses |
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3 Hz |
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Pulse duration |
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100 ms in normal mode, 1.6 ms in the test mode |
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Energy pulse output values (V1) |
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Energy units |
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kWh or MWh |
GJ |
Gcal |
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Pulse value of thermal energy |
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1 kWh/pulse |
0.005 GJ/pulse |
0.001 Gcal/pulse |
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Volume pulse output values (V2) |
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Nominal flow rate (qp), m3/h |
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0.6 - 6 |
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10; 15 |
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Pulse value, l/pulse |
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1 |
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10 |
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Data logger |
Data logger |
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Following hourly, daily and monthly parameter values are recorded in energy meter memory (can be |
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configured by SonoMeter 30 UserConfig software): |
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1............. |
Integrated heating energy |
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2............. |
Integrated cooling energy |
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3............. |
Integrated energy of tariff 1 |
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4............. |
Integrated energy of tariff 2 |
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5............. |
Integrated volume of liquid |
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6............. |
Integrated pulse value in pulse input 1 |
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7............. |
Integrated pulse value in pulse input 2 |
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8............. |
Maximum thermal power value for heating and date |
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9............. |
Maximum thermal power value for cooling and date |
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10.......... |
Maximum flow rate value and date |
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11........... |
Maximum value of flow temperature of heat conveying liquid and date |
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12........... |
Maximum value of return temperature of heat conveying liquid and date |
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13.......... |
Minimum value of flow temperature of heat conveying liquid and date |
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14.......... |
Minimum value of return temperature of heat conveying liquid and date |
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15.......... |
Minimum value of temperature difference and date |
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16.......... |
Average value of flow temperature of heat conveying liquid |
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17........... |
Average value of return temperature of heat conveying liquid |
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18.......... |
Operating time without an error of thermal energy calculation |
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19.......... |
Total error code |
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20.......... |
Time when the flow rate exceeded 1.2 qs |
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21.......... |
Time when the flow rate was less than qi |
Data logger capacity
•up to 1480 h - for hourly records
•up to 1130 days - for daily records
•up to 36 last months - for monthly records
•Storage time of measured integrated parameters even if device is disconnected from power supply: not less than 15 years
All data from archive can be read by means of the remote reading. In addition data logger records of monthly parameters can be seen on the display.
Power supply |
Power supply (one of following depending on meter configuration): |
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• 2 AA cell battery 3.6 V DC, 2.4 Ah (Li-SOCl2) lithium battery, life time at least 11 years |
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• Mains power supply 12 V AC to 36 V AC (50/60 Hz) or 12 V DC to 42 V DC: |
- The mains power supply 24V AC/DC module is mounted inside in the meter - Consumption is max 20 mA
- Galvanically isolated + internal backup battery size AA cell, 3.6 V, 2.4 Ah, lithium battery (LiSOCl2). When the external power supply is turned off, the battery life time is not less than 11 years (without data reading via a digital interface)
• Mains power supply 230 V AC (+10% / -30%) 50/60Hz:
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- The meter should be equipped with an internal power supply unit and an external transformer. |
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The 230 V AC to 24 V AC transformer is used for connection to mains power supply 24 V AC/DC |
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module inside the meter |
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- Consumption is max 10 mA |
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© Danfoss | Energy Meters | 2020.08 |
AI206286471334en-010701 | 5 |