Danfoss SonoSensor 30 Data sheet

Data sheet

SonoSensor 30

Ultrasonic flow sensor

Description

Features

• Available in nominal flow rates qp 0.6, 1.0,

• 1.5, 2.5, 3.5, 6.0, 10.0, 15.0, 25.0, 40.0, and 60.0

• m³/h

• Housings with thread (G3/4 to G2) or flange

• (DN20 to DN100) connections

• MID approval for ultrasonic flow meter with

• dynamic range of 1:100 (qi:qp) in class 2

• Optional dynamic range of 1:250 in class 2

• (with the exceptions of sensors qp 0.6 m3/h,

• 1.0 m3/h and 3.5 m3/h)

• Temperature range: 5 - 130 °C

• Operating pressure PN 16 or PN 25 bar

• Flow sensor with IP65 protection class and

• IP67 for heating/cooling application.

• Battery lifetime not less than 12 years

• Low pressure loss, insensitive to dirt

• No inlet or outlet restrictions up to DN50

• Short overload temperature up to 150 °C

MID examination certificate no.:
LT-1621-MI004-030

SonoSensor 30 is an ultrasonic flow sensor
especially designed for heating, cooling or
combined heating/cooling application in local
and district energy systems. It can be used in
conjunction with the type approved heating/
cooling energy calculator (e.g. Infocal 9) to form
combined heating/cooling energy meter.
SonoSensor 30 has been approved according to
MID in accuracy class 2. The flow sensor can be
mounted in both flow and return pipe.

© Danfoss | Energy Meters | 2021.08 AI271156201184en-010201 | 1

Data sheet SonoSensor 30

5
4
3
2
1
0

-1

-2

-3

-4

-5
q

i

qpq

s

EN1434 class 2

Key

typical accuracy

Technical specifications

Diameter DN 15 DN 20 DN25, DN32 DN40 DN 50 DN 65 DN 80 DN 10 0

Connection type G¾ G1 G1¼ G2 FL FL FL FL

Overall length, mm

Flow rate

Nominal, m3/h 0.6 1. 5

Maximum, m3/h 1.2 3.0

Minimum, l/h 6 6 15 6 6 15 10 25 15 10 25 35 24 6040100 60 150 25 40 60

Starti ng flow rate, l/h 3 3 3 5 5 17 12 20 30 12 0 200 300

Pressure l oss at qp, mbar 70 171 90 58 94 72 198 40 10 0 18 0 120 200 180 180

Max. operating pressure

Flow sensor temp. range 5 to 130°C (shor t overload 150°C)
Flow sensor to electronic

box cable length
Medium Water quali ty with pH 7 to 9.5

Volume measuring cycles 1 second

Supply voltage

Battery lifetime Not less th an 12 years

Approval EN1434 class 2

Environmental class class C

Ambient class E2 + M1

Protection class IP65 (IP67 for h eating/cooling)

Ambient operating temp. +5°C to +55 °C

Max. amb ient humidity <93% rel. hu midity

110

110 ;
165

190 130 260 300 270 300 300 360

0.6

1.2

1.5 2.5

3.0 5.0

1.5

2.5 3.5 6.0 10 15 25 40 60

3.0

5.0 7 12 20 30 50 80 120

Thread 16 bar
Flange 25 bar

1.2m up to DN32

2.5m up to DN 40 to DN100

3.6V DC Lit hium battery (A A-cell)/ Mains s upply 24V AC/DC

Mains supp ly 230V AC (with exter nal 230V to 24V AC transfor mer)

25 bar

Accuracy graph

Error [%]

Flow measurment accuracy

2 | AI271156201184en-010201 © Danfoss | Energy Meters | 2021.08

Data sheet SonoSensor 30

Design and function Power supply

Standard version contains AA cell 3,6V, 2,4 Ah lithium battery with a lifetime not less than 12 years. It
is also possible to have two internal lithium batteries (same type) with lifetime not less than 16 years.
Optionally external power supply (12V…42V DC or 12C…36V, 50/60Hz AC, 10mA) + internal backup
battery is available as accessory. External power supply module is mounted inside in the meter.

Pulse output

Measured flow rate is converted into the volume pulses which are transferred through pulse output
terminal. Pulse output class of flow output device: OD according to EN1434-2 + AC:2007. Maximum
flow cable length (from electronic box to energy calculator or pulse reading device) is up to 100m.

Mounting

Pipe position:

No limitations but avoid positions where air can
be collected.

Rotation in pipe axis:

Flow sensor should be angled in 45 to 315° to
avoid air collection in flow sensor.

Inlet/outlet conditions SonoSensor 30 sizes from DN15 to DN50 don’t need any calming sections before and after the flow

sensor.
To secure optimal conditions for flow measurement for sizes DN65, DN80 and DN100 it is necessary to
have straight inlet and outlet flow conditions 5xDN before and 3xDN after the flow sensor.

Inlet/outlet conditions

SonoSensor 30 in return pipe Infocal 9 terminal

18 (flow pulse) 52 (q2+)

19 (ground) 11 ( q2-)

SonoSensor 30 in supply pipe Infocal 9 terminal

18 (flow pulse) 10 (q1+)

19 (ground) 11 (q1- )

AI271156201184en-010201 | 3© Danfoss | Energy Meters | 2021.08

Data sheet SonoSensor 30

Dimensions

DN15, DN20 thread

Nominal flow rate q
Nominal diameter DN mm 15 20 20
Overall length L mm 110 130 190
Overall length with coupling L2 mm 185 224 284
Length of calculator L1 mm 117 117 117
Height H mm 14 18 18
Height H1 mm 67 67 68
Height of calculator H2 mm 39 39 39
Height of calculator H3 mm 44 44 44
Width B mm 90 90 90
Width of calculator B1 mm 81 81 81
Connection thread of meter AGZ inch G¾B G1B G1B
Connection thread of coupling AGV inch G¾B G¾B G¾B
Weight - kg 0.8 0.9 1.0

m3/h 0.6/1/1.5 1.5/2.5 0.6/1/2.5

p

4 | AI271156201184en-010201 © Danfoss | Energy Meters | 2021.08