Data sheet
SonoMeter 31
Energy Meters
Description
MID examination certificate no.:
LT-1621-MI004-023
The Danfoss SonoMeter 31 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 31 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 25, 40 and 60 m³/h
•DN 65, DN 80 and DN 100 housings with flange 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 (qi:qp) in class 2
•Temperature range 5 –130 °C
•Short overload temperature up to 150 °C
•Operating pressure 25 bar as standard
•For 2 or 4 wire temperature sensors
•Glycol mixtures as option (not MID certified)
•Calculator with IP65 protection class as standard
•Flow sensor with IP65 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 10 years
•Insensitive to dirt
•Remote reading via wired M-Bus, radio OMS 868 MHz, RS-485 Modbus RTU, pulse output, analog output and optical interface
•Two pulse inputs as standard (passive or active)
•Special option with 2 flow sensors, 2 pressure sensors and 3 temperature sensors measurement
© Danfoss | 2019.04 |
VD.SH.V3.02 | 1 |
Data sheet |
SonoMeter 31 - Energy Meters |
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Ordering |
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Energy meter |
Nominal flow, size |
Comm. |
Energy unit |
Installation |
Power |
Operating |
Code no. |
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application |
and connection type |
module |
supply |
pressure |
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Heating |
DN 65 / qp 25 m³/h / 300mm flange |
M-Bus |
MWh (2 dig.) |
Return |
battery 3.6 V DC |
25 bar |
187F3300 |
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Heating |
DN 65 / qp 25 m³/h / 300mm flange |
OMS 868.95 |
MWh (2 dig.) |
Return |
battery 3.6 V DC |
25 bar |
187F3301 |
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Heating |
DN 65 / qp 25 m³/h / 300mm flange |
M-Bus |
MWh (2 dig.) |
Return |
mains 230 V AC |
25 bar |
187F3302 |
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Heating |
DN 65 / qp 25 m³/h / 300mm flange |
OMS 868.95 |
MWh (2 dig.) |
Return |
mains 230 V AC |
25 bar |
187F3303 |
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Heating / cooling |
DN 65 / qp 25 m³/h / 300mm flange |
M-Bus |
MWh (2 dig.) |
Return |
battery 3.6 V DC |
25 bar |
187F3304 |
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Heating / cooling |
DN 65 / qp 25 m³/h / 300mm flange |
OMS 868.95 |
MWh (2 dig.) |
Return |
battery 3.6 V DC |
25 bar |
187F3305 |
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Heating / cooling |
DN 65 / qp 25 m³/h / 300mm flange |
M-Bus |
MWh (2 dig.) |
Return |
mains 230 V AC |
25 bar |
187F3306 |
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Heating / cooling |
DN 65 / qp 25 m³/h / 300mm flange |
OMS 868.95 |
MWh (2 dig.) |
Return |
mains 230 V AC |
25 bar |
187F3307 |
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Heating |
DN 80 / qp 40 m³/h / 350mm flange |
M-Bus |
MWh (2 dig.) |
Return |
battery 3.6 V DC |
25 bar |
187F3308 |
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Heating |
DN 80 / qp 40 m³/h / 350mm flange |
OMS 868.95 |
MWh (2 dig.) |
Return |
battery 3.6 V DC |
25 bar |
187F3309 |
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Heating |
DN 80 / qp 40 m³/h / 350mm flange |
M-Bus |
MWh (2 dig.) |
Return |
mains 230 V AC |
25 bar |
187F3310 |
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Heating |
DN 80 / qp 40 m³/h / 350mm flange |
OMS 868.95 |
MWh (2 dig.) |
Return |
mains 230 V AC |
25 bar |
187F3311 |
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Heating / cooling |
DN 80 / qp 40 m³/h / 350mm flange |
M-Bus |
MWh (2 dig.) |
Return |
battery 3.6 V DC |
25 bar |
187F3312 |
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Heating / cooling |
DN 80 / qp 40 m³/h / 350mm flange |
OMS 868.95 |
MWh (2 dig.) |
Return |
battery 3.6 V DC |
25 bar |
187F3313 |
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Heating / cooling |
DN 80 / qp 40 m³/h / 350mm flange |
M-Bus |
MWh (2 dig.) |
Return |
mains 230 V AC |
25 bar |
187F3314 |
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Heating / cooling |
DN 80 / qp 40 m³/h / 350mm flange |
OMS 868.95 |
MWh (2 dig.) |
Return |
mains 230 V AC |
25 bar |
187F3315 |
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Heating |
DN 100 / qp 60 m³/h / 350mm flange |
M-Bus |
MWh (2 dig.) |
Return |
battery 3.6 V DC |
25 bar |
187F3316 |
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Heating |
DN 100 / qp 60 m³/h / 350mm flange |
OMS 868.95 |
MWh (2 dig.) |
Return |
battery 3.6 V DC |
25 bar |
187F3317 |
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Heating |
DN 100 / qp 60 m³/h / 350mm flange |
M-Bus |
MWh (2 dig.) |
Return |
mains 230 V AC |
25 bar |
187F3318 |
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Heating |
DN 100 / qp 60 m³/h / 350mm flange |
OMS 868.95 |
MWh (2 dig.) |
Return |
mains 230 V AC |
25 bar |
187F3319 |
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Heating / cooling |
DN 100 / qp 60 m³/h / 350mm flange |
M-Bus |
MWh (2 dig.) |
Return |
battery 3.6 V DC |
25 bar |
187F3320 |
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Heating / cooling |
DN 100 / qp 60 m³/h / 350mm flange |
OMS 868.95 |
MWh (2 dig.) |
Return |
battery 3.6 V DC |
25 bar |
187F3321 |
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Heating / cooling |
DN 100 / qp 60 m³/h / 350mm flange |
M-Bus |
MWh (2 dig.) |
Return |
mains 230 V AC |
25 bar |
187F3322 |
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Heating / cooling |
DN 100 / qp 60 m³/h / 350mm flange |
OMS 868.95 |
MWh (2 dig.) |
Return |
mains 230 V AC |
25 bar |
187F3323 |
Cable length of temperature sensors is 3.0m.
Cable length between flow sensor and energy calculator is 3.0m.
Accessories |
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Product |
Designation |
Quantity |
Code no. |
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Power supply |
Battery 3.6 V DC (D cell) |
1 pc. |
187F3380 |
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Power supply |
Mains unit 230 V AC |
1 pc. |
187F3381 |
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Communication module |
M-Bus module |
1 pc. |
187F3382 |
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Communication module |
Radio OMS 868.95 MHz |
1 pc. |
187F3383 |
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Communication module |
RS-485 Modbus RTU |
1 pc. |
187F3384 |
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Communication module |
RS-232 M-Bus |
1 pc. |
187F3385 |
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Communication module |
RS-485 M-Bus1) |
1 pc. |
187F3386 |
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Communication module |
M-Bus, RS232 and two pulses outputs1) |
1 pc. |
187F3387 |
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Communication module |
M-Bus, RS232 and two 4-20mA outputs1) |
1 pc. |
187F3388 |
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Temperature sensor |
Pt 500 / f 5.2 mm / 1.5 m cable, MID |
1 pair |
187F3125 |
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Temperature sensor |
Pt 500 / f 5.2 mm / 2 m cable, MID |
1 pair |
187F3126 |
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Temperature sensor |
Pt 500 / f 5.2 mm / 3 m cable, MID |
1 pair |
187F3127 |
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Temperature sensor |
Pt 500 / f 5.2 mm / 5 m cable, MID |
1 pair |
187F3390 |
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Temperature sensor |
Pt 500 / f 5.2 mm / 10 m cable, MID |
1 pair |
187F3391 |
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Sensor pockets |
Ø 5.2 mm, brass, 35 mm length |
1 pair |
087G6053 |
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Sensor pockets |
Ø 5.2 mm, brass, 52 mm length |
1 pair |
087G6054 |
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Sensor pockets |
Ø 5.2 mm, brass, 85 mm length |
1 pair |
087G6055 |
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Sensor pockets |
Ø 5.2 mm, brass, 120 mm length |
1 pair |
087G6056 |
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Sensor pockets |
Ø 5.2 mm, stainless steel, 85 mm length |
1 pair |
087G6057 |
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Sensor pockets |
Ø 5.2 mm, stainless steel, 120 mm length |
1 pair |
087G6058 |
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Sensor pockets |
Ø 5.2 mm, stainless steel, 155 mm length |
1 pair |
087G6059 |
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Sensor pockets |
Ø 5.2 mm, stainless steel, 210 mm length |
1 pair |
087G6060 |
1) Only with mains supply 230 V AC
2 | VD.SH.V3.02 |
© Danfoss | 2019.04 |
Data sheet |
SonoMeter 31 - Energy Meters |
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Technical specifications
Diameter |
DN 65 |
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DN 80 |
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DN 100 |
Connection type |
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EN1092 flange |
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Overall length (mm) |
300 |
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350 |
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350 |
Flow rate: |
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Nominal (m3/h) |
25 |
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40 |
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60 |
Maximum (m3/h) |
50 |
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80 |
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120 |
Standard min. (m3/h) |
0.25 |
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0.4 |
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0.6 |
Starting (m3/h) |
0.10 |
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0.16 |
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0.24 |
Max. operating pressure |
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25 bar |
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Flow sensor temp. range |
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5 to 130 °C (short overload up to 150 °C) |
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Flow sensor cable length |
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3.0 m |
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Medium |
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Water quality with pH 7 to 9.5 |
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Pressure loss at qp, mbar |
200 |
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180 |
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180 |
Measuring cycles |
Volume every 1 sec., energy, temperature sensors and display update every 10 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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3.0 m |
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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 |
3.6 V DC Lithium-battery (D-cell) or Mains supply 230 V AC |
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Battery life time |
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min. 10 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 |
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
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Flow direction |
Flow direction |
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Return pipe installation |
Supply pipe installation |
© Danfoss | 2019.04 |
VD.SH.V3.02 | 3 |