Danfoss 40 User manual

www.danfoss.com
Installation guide
SonoMeter 40
Ultrasonic energy meter
for heating and cooling applications

2 | © Danfoss | Energy Meters | 2021.10 AN384648824392en-010102
Date:
2021.09.22
Issued by Date:
2021.09.22
Approved by
Place of issue:
8811 Scheifling
Austria
Signature:
Name: Norbert Spreitzer
Title: Product Portfolio Manager
Place of issue:
1210 Ljubljana,
Slovenia
Signature:
Name: Gasper Benedik
Title: Energy Meters Director
Danfoss only vouches for the correctness of the English version of this declaration. In the event of the declaration being translated into any other
language, the translator concerned shall be liable for the correctness of the translation
ID No: 014R2944
This doc. is managed by 500B0577
Revision No: 01 Page
1
of
2
EU DECLARATION OF CONFORMITY
Danfoss A/S
Danfoss Energy Metering
6430 Nordborg, Denmark | CVR nr.: 20 16 57 15 | Telephone: [phone] | Fax: [phone]
declares under our sole responsibility that the
Product category: Energy Meters Type designation(s): SonoMeter 40
Covered by this declaration is in conformity with the following directive(s), standard(s) or other normative
document(s), provided that the product is used in accordance with our instructions.
[RED] – Radio Equipment Directive 2014/53/EU2
Article 3.1a (LVD)
EN 61010-1:2010+A1:2019
EN 62368-1:2014
EN 62311: 2008
Article 3.1b (EMC)
EN 301 489-3 V2.1.1
EN 301 489-1 V1.9.2
Article 3.2 (Radio)
EN 300 220-1 V3.1.1
EN 300 220-2 V3.1.1
[EMC] – Electromagnetic Compatibility Directive 2014/30/EU1
EN 55032:2015+A11:2020
[LVD] – Low Voltage Directive 2014/35/EU1, 3
EN 61010-1:2010+A1:2019
EN 62368-1:2014
EN 62311: 2008
[MID] – Measuring Instruments Directive 2014/32/EU
EN 1434-1:2015+A1:2018
EN 1434-2:2015+A1:2018
EN 1434-3:2015
EN 1434-4:2015+A1:20184
EN 1434-5:2015+A1:2019
EN 1434-6:2015+A1:2019
WELMEC 7.2:2015 - Software Guide
Noti�ied Body: Lithuanian Energy Institute, 1621, performed type approval and issued certi�icate LT-1621-MI004-047.
[RoHS] – Restriction of Hazardous Substances Directive 2011/65/EU+A:2015/863
EN IEC 63000:2018
1 For variants with Radio Module the declaration for EMC & LVD shall be ignored
2 For variants without Radio Module the declaration for RED shall be ignored.
3 For variants without Radio Module and without Mains power supply (24V AC/DC) the declaration for RED and LVD shall be ignored.
4 Not within MID – National Type Approval Certi�icate for cooling energy DE-21-M-PTB-0069 is issued by “Physikalisch-Technische Bundesanstalt”.
Installation guide SonoMeter 40

AN384648824392en-010102 © Danfoss | Energy Meters | 2021.10 | 3
Date:
2021.09.22
Issued by Date:
2021.09.22
Approved by
Place of issue:
8811 Scheifling
Austria
Signature:
Name: Norbert Spreitzer
Title: Product Portfolio Manager
Place of issue:
1210 Ljubljana,
Slovenia
Signature:
Name: Gasper Benedik
Title: Energy Meters Director
Danfoss only vouches for the correctness of the English version of this declaration. In the event of the declaration being translated into any other
language, the translator concerned shall be liable for the correctness of the translation
ID No: 014R2944
This doc. is managed by 500B0577
Revision No: 01 Page
2
of
2
UK DECLARATION OF CONFORMITY
Danfoss A/S
Danfoss Energy Metering
6430 Nordborg, Denmark | CVR nr.: 20 16 57 15 | Telephone: [phone] | Fax: [phone]
declares under our sole responsibility that the
Product category: Energy Meters Type designation(s): SonoMeter 40
Covered by this declaration is in conformity with the following directive(s), regulation(s), standard(s) or other
normative document(s), provided that the product is used in accordance with our instructions.
Radio Equipment Regulations 20172
Article 3.1a (LVD)
BS EN 61010-1:2010+A1:2019
BS EN 62368-1:2014
BS EN 62311:2008
Article 3.1b (EMC)
EN 301 489-3 V2.1.1
EN 301 489-1 V1.9.2
Article 3.2 (Radio)
EN 300 220-1 V3.1.1
EN 300 220-2 V3.1.1
Electromagnetic Compatibility Regulations 20161
BS EN 55032:2015+A11:2020
Electrical Equipment (Safety) Regulations 20161, 3
BS EN 61010-1:2010+A1:2019
BS EN 62368-1:2014
BS EN 62311:2008
The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012
(as amended)
BS EN IEC 63000:2018
Heat Metering and Billing Regulations 2014
Heat meter accuracy cl. 7.9:
Noti�ied Body: Lithuanian Energy Institute, 1621, performed type approval and issued certi�icate LT-1621-MI004-047.
1 For variants with Radio Module the declaration for EMC & LVD shall be ignored
2 For variants without Radio Module the declaration for RED shall be ignored.
3 For variants without Radio Module and without Mains power supply (24V AC/DC) the declaration for RED and LVD shall be ignored.
Installation guide SonoMeter 40

AN384648824392en-010102 © Danfoss | Energy Meters | 2021.10 | 4
Installation guide SonoMeter 40
1. Installation
1.1. Preparation
Only qualified personnel may install the equipment, following the requirements listed in this document.
More detailed instruction can be found on www.heating.danfoss.com.
Note! This product is approved for ambient temperature between 5-55° C, but to ensure optimal conditions for
battery it is recommended to install Calculator at max. 45° C. Avoid installation stress from pipes and fittings.
Flush the system.
1.2. Identification of installation: Return/Supply pipe installation and flow direction
Flow direction
Return pipe installation
Flow direction
Supply pipe installation

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Installation guide SonoMeter 40
1.3. Mounting of flow sensor
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 (only for DN 65-DN 100)
In order to maximize performance it is necessary to have straight inlet and outlet flow conditions before
and after the flow sensor: 5 × DN on inlet and 3 × DN on outlet of flow sensor.
flow
5 x DN 3 x DN
1.4. Mounting and sealing of calculator
Heat meter calculator may be installed in heated premises, working ambient temperature shall
be not more than 55 °C. It may not be exposed to direct sunlight.
The calculator is mounted on an auxiliary holder (it can be oriented in the required direction at an angle of
each 90 °:
The possible ways of the mounting of the calculator (auxiliary holder):
- Direct mounting on the housing of the flow sensor, by turning each 90o (only when the flow temperature
does not exceed 90oC):

AN384648824392en-010102 © Danfoss | Energy Meters | 2021.10 | 6
Installation guide SonoMeter 40
- On the wall:
- Panel mounting on standard DIN-rail.
Important: It is prohibited to attach the electronic unit directly on the wall because there is a risk
that moisture may condense on the walls of the room or the temperature of the surface of the wall may
drop below 5 °C. In this case, it is recommended to mount the electronic unit so that to provide for an air
space of at least 5 cm between the unit and the wall surface.
Calculator seals
For design with permanently connected temperature sensors no additional sealing applies to the
electronic unit of a newly manufactured heat meter. Access to elements fixing the opening of the box,
configuration change activation contacts, and adjustment data change activation contacts is protected
by special easily breakable partitions.
a) b) c)
Access to elements fixing the opening of the box (a), configuration change activation contacts (b) and
adjustment data change activation contacts (c) (partitions easily breakable with a tool)

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Installation guide SonoMeter 40
After the opening of the box, change of the configuration, or adjustment of the meter (when the special
partitions were broken out for this purpose), the opened slots must be additionally sealed with sticker
seals:
- the two slots marked LOCK for access to the elements fixing the opening of the box are sealed with
test sticker seals (Fig. 4.1a),
-the slot marked SERVICE for access to the configuration change activation contacts is sealed with
the supplier’s sticker seal (Fig. 4.1b),
-the slot marked ADJ for access to the adjustment data change activation contacts is sealed with the
supplier’s sticker seal (Fig. 4.1c).
For design with changeable temperature sensors (IP65 protection class of the calculator only!) the
inspection seals /adhesive seals protect the access to protective cap mounting bolt and to adjustment data
change activation contacts ADJ, if breakable partition is broken out.
The inspection seals /adhesive seals protect the access to protective cap mounting bolt (1) and to
adjusment data change activation contacts (2) , if breakable partition is broken out.
1.5. Mounting and sealing of temperature sensors
Seal
Seal
Installation recommendations for
ball valve mounting and sealing
Installation recommendations for
direct short temperature sensors

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Installation guide SonoMeter 40
Seal
Pocket
a) angled 45°
Seal
P
ocket
b) perpendicular
Installation recommendations for pocket temperature sensors with permanently connected signal leads.
2. Electrical wiring
2.1 Connection of a meter with permanently connected temperature sensors (IP 67/68)
The meter version with permanently connected temperature sensors is fully ready for installation,
complete with the necessary cables for connection (no need to open the meter).
If the meter is equipped with wired interfaces or a pulse input / output function, appropriate and marked
cables to connect the relevant external device are provided.
If the meter is intended to be powered by an external source of 230V AC or 24V AC / DC, the dedicated
and marked cable of the meter shall be connected to the appropriate source.
2.2 Connection of the meter with changeable temperature sensors (IP65)
If the meter is fully assembled (temperature sensors are connected, communication interface cables are
in place) - follow the installation procedure in p.5.3.1 (the meter does not need to be opened). Otherwise,
it is necessary to open the electronic unit box.
Opening of electronic unit box
Before opening the electronic box, make sure that the meter version is with changeable temperature
sensors:
Check!
IP65 = Openable Version (with exchangeable
temperature sensors)
IP67 = Not openable
IP68 = Not openable

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Installation guide SonoMeter 40
Wiring diagram 1
Design with changeable
temperature sensors, Mbus1
interface. Meter power supply from
a battery.
Wiring diagram 2
Design with changeable
temperature sensors, additional
interface module
(additional interface module
mounting bracket under the
module). Meter power supply from
a battery.

10 | © Danfoss | Energy Meters | 2021.10 AN384648824392en-010102
Installation guide SonoMeter 40
Wiring diagram 3
Design with changeable
temperature sensors, LoRa interface
and 24V power supply module.
The 24V power supply module is
mounted on the battery holder and
connected to the B1 connector of
the meter.
A backup battery is connected to
the BAT connector of the module.
The 24V power cable is connected
to the“24V”terminals of the
module (connections are made
before mounting the module, as
the connectors and terminals are
on the other side of the module).
The LoRa interface module is
connected to the 24V power supply
module connector by an additional
connection cable.
Numbering of calculator terminals
Terminal N. Description
5, 6 High temperature sensor (T1)
7, 8 Low temperature sensor (T2)
50 Common terminal for 2nd additional pulse input/output (GND)
51 2nd additional pulse input/output (In/Out2)
(Volume output for TEST mode)
52 Common terminal for 1st additional pulse input/output (GND)
53 1st additional pulse input/output (In/Out1)
(Energy output for TEST mode)
24, 25 M-bus data lines (bipolar)
Numbering of M-bus communication module terminals
Terminal N. Description
24, 25 M-bus module (bipolar)
Numbering of MODBUS and BACnet communication module terminals
Terminal N. Description
60, 61 12-24 V DC power supply voltage for MODBUS and BACnet (bipolar)
90 MODBUS or BACnet Line +
91 MODBUS or BACnet Line -