Danfoss SonoMeter 30 Data sheet

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 SonoMeter 30

Technical specifications

Diameter DN 15 DN 20 DN 15 DN 20 DN 20 DN 25 D N 25 DN 40 DN 50 DN 65 DN 80 DN 100

Connection type G¾B G1B FL G¾B G1B FL G1B G1B G1B FL G1¼ B FL G1¼ B FL G2B FL FL FL FL FL

Overall length, mm 110 190 110 190 130 130 19 0 260 26 0 300 270 30 0 300 360

Flow rate:

Nominal (m3/h) 0.6 1.5 2.5 3.5 6 10 15 25 40 60

Maximum (m3/h) 1.2 3 5 7 12 20 30 50 80 120

Standard min. (l/h) 6 15 25 35 60 100 150 350 400 600

Pressure l oss at qp (mbar)

Kvs values (for nominal flow)
Max. operating pressure 16 bar / 25 bar

Flow sensor temp. range 5 to 130 °C (short ove rload to 150 °C)

Flow sensor cable length 1.2m, 2.5m a nd 5m (optional)

Medium Water quali ty with pH 7 to 9.5

Measuring cycles Volume ever y 1 sec., energ y, temper ature sensors and d isplay update ever y 16 sec.

Temperature sensors Pt 500 ø 5. 2 mm with 2-wire lead s

Temp. sensor cable length 1.5 m option al 3 m, 5 m and 10 m cable

Max. tem p. diff. (∆θmax) 150 K

Min. temp. d iff. (∆θmin) 3.0 K

Starti ng temp. diff. (∆θ) 0.15 K

Temp. measuring range 0 to 180 °C

Supply voltage

Batter y life time min. 11 years (including AMR communication)

Approval EN1434 class 2

Environmental class EN1434 class C

Ambient class class E2 + M1

Protection class Calculat or: IP 65; Flow sensor : IP 65 (IP67 for heat and coo ling meter)

Ambient operating temp. Calculat or: 5 to 55 °C; Flow senso r: -30 to 55 °C
Ambient storage and

transporta tion temp.
Max. amb ient humidity 93% rel. humi dity

Display LCD, 8- digit

Display units MWh - k Wh - GJ - Gcal - °C - m3 - m3/h

Display values Ener gy - volume - flow r ate - power - tempera tures

70 9 171 58 72 198 94 40 100 180 120 200 18 0 180

2.27 6.32 3.63 6.23 5.59 5.62 8 .15 17. 50 18.97 23.57 43.50 55.9 94.3 141 .4

3.6 V DC Lith ium-batter y (AA cell) / Mains su pply 24 V AC/DC.

Mains supp ly 230 V AC (with exter nal 230 V AC to 24 V AC transform er).

5 to 55 °C

Application drawings

Flow direction

Return pipe installation

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Data sheet SonoMeter 30

5
4
3
2
1
0

-1

-2

-3

-4

-5
q

i

qpq

s

EN1434 class 2

Key

typical accuracy

Application drawings

(continuous)

Supply pipe installation

Accuracy

Flow direction

Error [%]

Flow measurment accuracy

AI206286471334en-010701 | 3© Danfoss | Energy Meters | 2020.08

Data sheet SonoMeter 30

Design and function

Optical interface
Optical interface is integrated into the front panel of the calculator. It is designed for data reading
via M-bus protocol and parameterization of the meter using SonoMeter 30 UserConfig software and
optical head OG-1-USB.
The optical interface is activated by pressing the control button and shuts automatically off 5 minutes
after the last pressing button or after completing data transmission via interface.

Wired M-Bus interface

The energy meter has 1 slot for an additional communication module. The internal M-Bus module
provides data reading possibility via M-Bus protocol:

• M-Bus protocol according to EN13757-3 standard

• 2-wire with polarity reversal protection

• Electrical isolation

• •Maximum voltage 50 V DC

• Current drawn: one M-Bus load (1.5 mA)

• Primary or secondary addressing

• Baud rate 2400 bps

• Battery lifetime min. 11 years (2 AA cell)

• Battery supply communication is limited on every 15 min at 2400 baud rate or faster, 70 meters
on bus

• 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

Polarity independent connection for power supply – connectors 60
and 61.

Power supply

BACnet

Baud rate 9600, 19200, 38400 –default, 57600, 76800, 115200 bps

Power supply

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
Measurement units m3 (51, 52), kWh (52, 53) or MWh, GJ, GCal
Pulse value programmable by SonoMeter 30 UserConfig Software
Min. pulse time 100 ms
Pulse type IB by class IB according to EN1434-2
Max. frequency of input

pulses
Max. voltage of input pulses 3.6 V

Voltage 12-24 V AC/DC.
Maximum power consumption 2 W max.
Typical supply current 50 mA.

Polarity independent connection for power supply – connectors 60
and 61.

Voltage 12-24 V AC/DC.
Maximum power consumption 2 W max.
Typical supply current 50 mA.

3 Hz

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Data sheet SonoMeter 30

Design and function

(continuous)

Data logger

Pulse outputs (default, no jumper set)

Number of pulse outputs 2
Measurement units m3 (51, 52), kWh (52, 53) or MWh, GJ, GCal,
Pulse value according to the table below

Pulse type

open collector, permissible current up to 20 mA, voltage up to

50 V, class OB according to EN1434-2
Max. frequency of output pulses 3 Hz
Pulse duration 100 ms in normal mode, 1.6 ms in the test mode

Energy pulse output values (V1)

Energy units kWh or MWh GJ Gcal
Pulse value of thermal energy 1 kWh/pulse 0.005 GJ/pulse 0.001 Gcal/pulse

Volume pulse output values (V2)

Nominal flow rate (qp), m3/h 0.6 - 6 10; 15
Pulse value, l/pulse 1 10

Data logger

Following hourly, daily and monthly parameter values are recorded in energy meter memory (can be
configured by SonoMeter 30 UserConfig software):

1 ............Integrated heating energy

2 ............Integrated cooling energy

3 ............Integrated energy of tariff 1

4 ............Integrated energy of tariff 2

5 ............Integrated volume of liquid

6 ............Integrated pulse value in pulse input 1

7 ............Integrated pulse value in pulse input 2

8 ............Maximum thermal power value for heating and date

9 ............Maximum thermal power value for cooling and date

10 .......... Maximum flow rate value and date

11 ..........Maximum value of flow temperature of heat conveying liquid and date

12 .......... Maximum value of return temperature of heat conveying liquid and date

13 .......... Minimum value of flow temperature of heat conveying liquid and date

14 .......... Minimum value of return temperature of heat conveying liquid and date

15 .......... Minimum value of temperature difference and date

16 .......... Average value of flow temperature of heat conveying liquid

17 .......... Average value of return temperature of heat conveying liquid

18 .......... Operating time without an error of thermal energy calculation

19 .......... Total error code

20 ..........Time when the flow rate exceeded 1.2 q

21 .......... Time when the flow rate was less than q

s

i

Power supply

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 (one of following depending on meter configuration):

• 2 AA cell battery 3.6 V DC, 2.4 Ah (Li-SOCl2) lithium battery, life time at least 11 years

• 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:

- The meter should be equipped with an internal power supply unit and an external transformer.
The 230 V AC to 24 V AC transformer is used for connection to mains power supply 24 V AC/DC
module inside the meter

- Consumption is max 10 mA

AI206286471334en-010701 | 5© Danfoss | Energy Meters | 2020.08