Sonotec SONOFLOW IL.52/3 V2.0 User manual

Ultrasonic Flow Sensor
SONOFLOW®IL.52 V2.0
User Documentation
Including
Technical Data Sheet
Operating Manual
Certificates

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Technical Data Sheet SONOFLOW®IL.52/3 V2.0
Ultrasonic Flow Sensor
1
Revision: 1.3; Date: 2020-05-18
The inline compact sensor SONOFLOW®
IL.52/3 V2.0 serves to detect smallest flow
rates of liquids quickly.
Constructed as a built-in component for
machines and apparatuses, the sensor
could be easily mechanically installed and
electrically integrated into the control system.
Due to the current, frequency and switching
outputs industrial dosing applications can be
supported. The RS485 interface
(SONOTEC®protocol; MODBUS®via
software settings) allows bus operation of up
to 12 sensors in rough industrial
environments.
Specifically designed for the use in areas
with rigorous hygiene requirements, the
sensor is suitable for circulation cleaning
and steam sterilization.
General data
SONOFLOW®IL.52/3 V2.0
Ultrasonic Flow Sensor for Liquids
Order-No. IL.52/3 PEEK / Viton®* 200 08 0001
IL.52/3 PEEK / FFKM 200 08 0044
Dimensions (L x W x H) 148 x 59 x 46 mm
Weight 370 g
Media Water or other acoustically transparent, low-viscosity liquids (for applications with
high-viscosity liquids, e.g. fats / special paints, screening tests must be made)
Upper range value 3 000 ml/min
Accuracy for water
(at 23° C ± 2 K and 1 bar)
0 … 30 ml/min: ± 0.3 ml/min
30 ... 3 000 ml/min: ± 1.0 %
Calibration Factory calibrated for water at 23 °C ±2 K, outlet of the tubes depressurized
(0 bar), other calibration on request
Zero stability 0.375 ml/min
Pressure drop at
nominal flow rate
0.95 bar
* Viton®is a registered trademark of DuPont de Nemours, Inc.

SONOFLOW®IL.52/3 V2.0 Technical Data Sheet
Ultrasonic Flow Sensor
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Revision: 1.3; Date: 2020-05-18
Measuring method Ultrasound, time of flight measurement
Measuring cycle Typical 20 ms (minimum 4 ms)
Indirect temperature
measurement
Integrated sensor at the inlet
(accuracy of temperature sensor ±1 °C, with Tambient 23 °C and Q 1 l/min)
Mounting Fixed installation: 4 x recessed threaded holes M5, depth: 10 mm
Measuring channel Ø 3.0 mm
Adaptor for tube
connection
Outer diameter 8 mm, inner diameter 4 mm
Pressure rating PN10
Material
(in contact with fluid)
Measuring channel and measuring cell: PEEK,
Seals: Viton®/ FFKM
Operating voltage 12 … 30 VDC, ripple max. 10 %, protection against reverse polarity
(external fuse, if required: min. 200 mA)
Current consumption Maximum 50 mA (with open current, frequency and switching output,
depending on supply voltage)
Electrical connection 8-pin M12 connector, DIN EN 61076-2-101:2013
Shielding Required: via cable / housing (mounting screws)
Interfaces •Current output for flow rate: 0/4 … 20 mA
•Frequency output for flow rate: 0 … 20 kHz, 5 V digital
•RS485 interface: bus-capable (SONOTEC®protocol, optional MODBUS®)
•Switching output: configurable as PNP / NPN / Push-Pull, 0 … 30 V
•Digital input (MODBus on request)
Current output
for flow rate
NOTE: Load to GND. The max. load depends on the operating voltage:
12 V 250 Ω, 15 V 500 Ω, 24 V 1 kΩ, 30 V 1.2 kΩ
Load
Input
Current output
+UB
HOST
SENSOR
Ground
+UB
Ground

Technical Data Sheet SONOFLOW®IL.52/3 V2.0
Ultrasonic Flow Sensor
3
Revision: 1.3; Date: 2020-05-18
Frequency output
for flow rate
RS485 interface SONOTEC®protocol: Half-duplex operation / 115.200 baud / no parity / 1
stop bit / no handshaking (MODBUS®via software settings)
NOTE: Please find the description of the serial protocol for details
(upon request).
Recommended electrical connection of the RS 485 interface
CAUTION! If the interface is not used, it does not necessarily has to be
connected; the two pins A and B can remain open.
RS485 Bus operation The sensor supports bus operation with max. 12 subscribers. The default
address is #01.
NOTE:
The address can be changed by software settings (see opt. accessories).
Permitted are addresses from #01 … #12.
Menu: Identification | RS485 address
Switching output Freely configurable: e.g. adapting batch process or threshold switch of flow,
maximum 100 mA
10 kΩ
B
A
+3.3 or +5 V
HOST
SENSOR
Ground
+3.3 V
Ground
A
B
10 kΩ
10 kΩ
10 kΩ
Recommended
2 ... 5 kΩ
Load min. 5 kΩ
Input
Frequency output 5 V
HOST
SENSOR
Ground
Ground

SONOFLOW®IL.52/3 V2.0 Technical Data Sheet
Ultrasonic Flow Sensor
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Revision: 1.3; Date: 2020-05-18
Digital input Freely configurable: for example for zero point calibration of flow or start
dosing processes
Voltage resistant up to 30 V
Protection class IP65
Cleaning and
sterilization
Maximum liquid temperature: temporarily +145 °C;
Resistant to cleaning agents (e.g. caustic soda or 3 percent nitric acid)
NOTE: Verify that the sensor materials (PEEK, Viton®/ FFKM)
are resistant against the cleaning agent.
Media temperature 0 ... +100 °C (T > 70 °C without voltage, temporarily +145 °C)
Ambient temperature 0 ... +70 °C
Storage temperature -20 ... +70 °C
Directives and
standards
•EMC directive 2014/30/EU
•RoHS: 2011/65/EU, exception: III 7cI/ IV 15
•Acoustic emission: IEC 61157
Maintenance Maintenance-free
Scope of delivery •SONOFLOW®IL.52/3 V2.0 according to specification
•User documentation
Optional accessories •8-pole M12 sensor cable, length 2 m / 5 m
•Calibration protocol
SONOFLOW®C3Software for testing parameter settings, to adjust sensors
for a specific application and for recording measurements consisting of
•USB Data Converter, type 013 for the connection to a computer
•USB cable, type A-B, length 2 m
•8-pole M12 connecting cable, length 2 m
•Switching power supply (12 VDC)
•USB flash drive with SONOFLOW®C3Software and driver for Windows
Digital input
HOST
SENSOR
Ground
Ground

Technical Data Sheet SONOFLOW®IL.52/3 V2.0
Ultrasonic Flow Sensor
5
Revision: 1.3; Date: 2020-05-18
Electrical connection
Male connector
(at the sensor)
Female connector
(at the cable)
M12 connecting cable Pin Color Connection
Assignment 1 White Ground
2 Brown Operating voltage +12 ... 30 VDC
3 Green Current output (0/4 … 20 mA)
4 Yellow RS485 B
5 Grey RS485 A
6 Pink Frequency output 0 … 20 kHz
7 Blue Switching output: PNP / NPN / Push-Pull
8 Red Digital input

SONOFLOW®IL.52/3 V2.0 Technical Data Sheet
Ultrasonic Flow Sensor
6
Revision: 1.3; Date: 2020-05-18
Technical drawings
Figure 1: Dimensions SONOFLOW®IL.52/3 V2.0 – Side view
Figure 2: Rear side with drill holes for mounting
4x threaded holes M5/ depth: 10
Drawings are not to scale. Dimensions in mm, unless otherwise specified. Information is subject to change without notice.
HEADQUARTERS GERMANY
SONOTEC GmbH
Nauendorfer Str. 2
06112 Halle (Saale)
Germany
Tel.: +49 (0)345 / 133 17
- 0
[e-mail]
www.sonotec.eu
AMERICA
S
SONOTEC US Inc.
190 Blydenburgh
Rd
Suite 8
, 2nd Floor
Islandia, New York 11749, USA
Phone: +1 631 / 415 4758
[e-mail]
www.sonotecusa.com

Ultrasonic Flow Sensor
Type SONOFLOW IL.52 V2.0
Operating Manual

© SONOTEC Ultraschallsensorik Halle GmbH
All rights reserved.
Revision: 1.0; Date: 2018-10-26
Information is subject to change without notice!

Operating Manual SONOFLOW IL.52 V2.0
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Revision: 1.0; Date: 2018-10-26
Contents
1Notes on operating manual.................................................................................................................. 5
1.1 General...........................................................................................................................................5
1.2 Symbols used.................................................................................................................................5
2Safety regulations ................................................................................................................................. 7
2.1 User qualifications..........................................................................................................................7
2.2 General safety information.............................................................................................................8
3Sensor description................................................................................................................................ 9
3.1 Intended use...................................................................................................................................9
3.2 Construction...................................................................................................................................9
3.3 Measuring method and functioning..............................................................................................10
3.4 Requirements for Liquid...............................................................................................................10
3.5 Parameterization, calibration and readout of measuring values (Accessories)...........................10
4Installation and commissioning......................................................................................................... 11
4.1 Attaching the Sensor SONOFLOW IL.52 V2.0 ............................................................................11
5Output Configuration and Settings ................................................................................................... 12
5.1 Current output for flow rate ..........................................................................................................12
5.2 Frequency output for flow rate .....................................................................................................12
5.3 Switching output...........................................................................................................................13
5.4 RS485 interface ...........................................................................................................................13
5.5 Digital input...................................................................................................................................14
6Operating the sensor .......................................................................................................................... 15
6.1 Preparatory work..........................................................................................................................15
6.2 Cleaning and Disinfection ............................................................................................................15
7Troubleshooting and maintenance.................................................................................................... 16
8Disposal................................................................................................................................................ 17

SONOFLOW IL.52 V2.0 Operating Manual
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Revision: 1.0; Date: 2018-10-26
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Operating Manual SONOFLOW IL.52 V2.0
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Revision: 1.0; Date: 2018-10-26
1 Notes on operating manual
1.1 General
Thank you for choosing a sensor from the SONOFLOW IL.52 V2.0 series.
This manual forms part of the sensor and should therefore be stored in its immediate vicinity
where it can be accessed by all operators at any time. It contains all the information needed to
ensure proper and efficient use, along with all the instructions to ensure safe operation of the
SONOFLOW IL.52 V2.0.
1.2 Symbols used
Hazards or special information is indicated in the following ways:
Warns of imminent threat of danger with very high risk. If not avoided,
it will result in death or serious injury.
Warns of possibly imminent danger with moderate risk. If not avoided,
it could result in death or serious injury.
Warns of danger with low risk. If not avoided, it may result in minor or
moderate injury.
Warns of danger. If not avoided, it may result in material damage.
NOTE!
This paragraph provides information or draws attention to special features.

SONOFLOW IL.52 V2.0 Operating Manual
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Revision: 1.0; Date: 2018-10-26
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Operating Manual SONOFLOW IL.52 V2.0
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Revision: 1.0; Date: 2018-10-26
2 Safety regulations
2.1 User qualifications
The SONOFLOW IL.52 V2.0 may only be installed and operated by users
who have read and understood the entire operating manual and the
Technical Data Sheet.
Make sure to read all safety regulations.
NEVER CHANGE SETTINGS of the sensor before you have saved all
parameters with the help of SONOFLOW Monitor.
Ignoring the safety instructions or changing parameters can cause
malfunction of the sensor. Depending on the application this can have
unforeseeable consequences and lead to serious injury with lasting health
consequences for personnel and damage or demolition of device
components.

SONOFLOW IL.52 V2.0 Operating Manual
2 Safety regulations
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Revision: 1.0; Date: 2018-10-26
2.2 General safety information
The SONOFLOW IL.52 V2.0 is a state of the art product that complies with all applicable safety
regulations. All sensors are factory tested and delivered in a safe condition for operation.
The following safety instructions apply:
Incorrect installation and use of the SONOFLOW IL.52 V2.0 sensor and its
components can present a hazard for the user.
Installation may only be performed by qualified personnel. The
applicable planning and installation regulations must be followed. The
plant operator is responsible for the legal compliance of the installation
and documentation.
All listed conditions in the Technical Data Sheet –especially regarding
temperatures and voltage range –must be met unconditionally. Values
are not allowed to exceed or to fall below the specified limits, not even
temporarily.
The sensor may only be exposed to a minimal risk of mechanical
damage. In case of higher risks, the sensor must be protected against
mechanical influences.
If there is visible damage, the sensor must be taken out of operation
immediately.
The Sensor may not be immersed.
The use of cleaning agents depends on the sensor version (seals and
their resistance). Make sure, that the seals made of FFKM or Viton are
not damaged. Follow the instructions in chapter 6.2.
The sensor must never be opened. This impairs the product safety.
The sensor does not contain any user-serviceable parts. Repairs must
be carried out by the manufacturer.
Settings and parameters of the sensor can be changed with the
SONOFLOW Monitor. Make sure to read the corresponding document.
Never change settings before you have saved the default settings.

Operating Manual SONOFLOW IL.52 V2.0
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Revision: 1.0; Date: 2018-10-26
3 Sensor description
3.1 Intended use
The ultrasonic flow sensor SONOFLOW IL.52 V2.0 serves for the precise measurement of
smallest flow rates and flow velocities of liquids.
Any use other than the designated use is prohibited and can result in personal injury or damage
to property. SONOTEC Ultraschallsensorik Halle GmbH accepts no liability for damage,
including to third parties, caused by improper handling of the sensors.
3.2 Construction
The SONOFLOW IL.52 V2.0 consists of two ultrasonic transducers, appropriate control
electronics and evaluation electronics. For the measurement of the media temperature a
temperature sensor is integrated.
Via the output (configurable current, pulse, frequency or switching output) the signals are
transmitted to the customer control unit.
Figure 1: Construction of the SONOFLOW IL.52 V2.0
Mode
Function
1
Adaptor for tube connection
2
M12 connector for operating voltage and outputs 1 and 2
Table 1: Interfaces of the SONOFLOW IL.52 V2.0
1
2

SONOFLOW IL.52 V2.0 Operating Manual
3 Sensor description
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Revision: 1.0; Date: 2018-10-26
With respect to material resistance the following sensor versions are available:
Seals (in contact with the medium)
Order number
Viton
200 08 0001
FFKM
200 08 0044
Table 2: Versions of SONOFLOW IL.52 V2.0
3.3 Measuring method and functioning
The ultrasonic sensor works with the time-of-flight measurement principle. The flow rate is
derived from the time difference of the ultrasound with and against the flow direction and the
geometry of the measuring cell. Multiple measuring data are collected by adequate evaluation
algorithms before processing the data for higher accuracy.
The flow rate can be indicated by a current output of [0/] 4 to 20 mA serving as the process
interface.
Additionally the following interfaces are available:
Frequency output for flow rate: 0 to 20 kHz, 5 V digital
RS485 interface: bus-capable
Switching output: configurable as PNP / NPN / Push-Pull, 0 to 30 V
Digital input (MODBus on request)
Please find the descriptions in the “Technical Data Sheet.”
3.4 Requirements for Liquid
The measuring method using ultrasound is suitable for all sound transparent, low-viscosity
liquids.
For industrial applications with high-viscosity liquids such as fats or special paints a higher
pressure drop (at nominal flow) has to be expected. In this case the specified value for nominal
flow cannot be achieved.
3.5 Parameterization, calibration and readout of measuring values (Accessories)
With the SONOFLOW Monitor software (optional) in conjunction with a computer the sensor can
be validated and adjusted to particular measuring tasks. Furthermore using the Monitor, the
measured values can be displayed on a screen. The measurement data can be recorded in a
table and be saved to a file.
All available accessories are listed in the “Technical Data Sheet”.

Operating Manual SONOFLOW IL.52 V2.0
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Revision: 1.0; Date: 2018-10-26
4 Installation and commissioning
The SONOFLOW IL.52 V2.0 is intended as component to be integrated into devices or machines.
The sensor is mechanically and electrically incorporated into the customer control unit.
4.1 Attaching the Sensor SONOFLOW IL.52 V2.0
The geometric layout always determines flow characteristics in a fluid system. The sensor
accuracy depends among other things on the mounting position in the flow system.
Incorrect installation may have an impact on the measuring accuracy.
Depending on the application this can have unforeseeable consequences.
Mechanical vibrations can affect sensor functions. Ensure that the
mounting or the tubes (lines) do not transmit vibrations to the sensor.
Recommended is an installation position with a flow direction against the force of gravity.
Use the drilled holes on the rear side of the sensor to attach the sensor.
(For dimensions: see the Technical Data Sheet).
Connect the tubing with the sensor via the designated adaptors:
Outer diameter: 8 mm
Inner diameter: 4 mm
Connect the sensor to power supply via the M12 plug-in connector as described in the
“Technical Data Sheet”.
NOTE!
A shielding is not necessary but recommended for long lines (> 30 m)
or in harsh industrial environments.
If pins at the connector are not used, they should be covered to protect
them against moisture and contamination
Use the service interface only in conjunction with the SONOFLOW Monitor
(optional accessory).

SONOFLOW IL.52 V2.0 Operating Manual
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Revision: 1.0; Date: 2018-10-26
5 Output Configuration and Settings
The settings can be adapted for special measuring tasks using the SONOFLOW Monitor
(optional accessory).
5.1 Current output for flow rate
The default settings for current output are:
Parameter
Default setting
Further options
(via SONOFLOW Monitor)
Configuration
Flow
Off |
Test current (0 … 22 mA)
Range
4 … 20 mA
0 … 20 mA
Limit
> 20 mA
≤20 mA
Flow min.
0 ml/min (4 mA)
0 … 3 000 ml/min
Flow max.
3 000 ml/min (20 mA)
0 … 3 000 ml/min
Measuring Error
2 mA
0 … 22 mA
Device Fault
0 mA
0 … 22 mA
Table 3: Default settings for current output
5.2 Frequency output for flow rate
Parameter
Default setting
Further options
(via SONOFLOW Monitor)
Configuration
Flow
Off |
Test frequency (0 … 20 kHz)
Flow min.
0.00 ml/min (0 kHz)
0 … 3 000 ml/min
Flow max.
3000 ml/min (20 kHz)
0 … 3 000 ml/min
Max. frequency
20 kHz
1 … 20 kHz
Measuring Error
0 kHz
0 … 20 kHz
Device Fault
0 kHz
0 … 20 kHz
Table 4: Default settings for frequency output