IFM SU7020 - Ultrasonic flow meter SUR34XXBFRKG/US

Accurate flow measurement of ultrapure water and water.
A robust, component-free measuring pipe made of stainless steel offers high media resistance and permanent ingress resistance.
The highly accurate inline measurement process eliminates any influence of varying wall thicknesses and pipe materials.
Operating status LED signals the sensor status and allows conclusions about process quality

Measuring range	0.5...75 l/min 30...4500 l/h 0.104...15.601 m/s 0.03...4.5 m³/h
Process connection	G 3/4 DN20 external thread

Special feature	Gold-plated contacts
Media	ultra-pure water; water; hydrous media
Note on media	hydrous media: for media with >10 % additives, the repeatability is the only available value
Medium temperature [°C]	-20...100
Min. bursting pressure	150 bar 15 MPa
Pressure rating	100 bar 10 MPa
Vacuum resistance [mbar]	-1000

Operating voltage [V]	18...32 DC;(to SELV/PELV)
Current consumption [mA]	< 75
Protection class	III
Reverse polarity protection	yes
Power-on delay time [s]	5
Measuring principle	ultrasonic

Inputs

Inputs	counter reset

Outputs

Total number of outputs	2
Output signal	switching signal; pulse signal; analogue signal; IO-Link; frequency signal; diagnostic signal; totaliser switching signal
Electrical design	PNP/NPN
Output function	normally open / normally closed;(parameterisable)
Max. voltage drop switching output DC [V]	2
Permanent current rating of switching output DC [mA]	100
Switching frequency DC [Hz]	0...10000
Analogue current output [mA]	4...20
Max. load [Ω]	500
Pulse output	flow rate meter
Short-circuit protection	yes
Type of short-circuit protection	pulsed
Overload protection	yes

Measuring/setting range

Measuring range	0.5...75 l/min 30...4500 l/h 0.104...15.601 m/s 0.03...4.5 m³/h
Display range	-90...90 l/min -5400...5400 l/h -18.721...18.721 m/s -5.4...5.4 m³/h
Resolution	0.1 l/min 2 l/h 0.001 m/s 0.002 m³/h
Set point SP	0.9...75 l/min 55...4500 l/h 0.192...15.601 m/s 0.055...4.5 m³/h
Reset point rP	0.5...74.6 l/min 32...4477 l/h 0.112...15.521 m/s 0.032...4.477 m³/h
Analogue start point ASP	-75...60 l/min -4500...3600 l/h -15.604...12.481 m/s -4.5...3.6 m³/h
Analogue end point AEP	-60...75 l/min -3600...4500 l/h -12.481...15.601 m/s -3.6...4.5 m³/h
Low flow cut-off LFC	0.5...3.2 l/min 30...195 l/h 0.104...0.676 m/s 0.03...0.195 m³/h
Frequency end point, FEP	15...75 l/min 903...4500 l/h 3.13...15.601 m/s 0.903...4.5 m³/h
Frequency at the end point FRP [Hz]	1...10000

Pulse length [s]	0.002...2
Pulse value	0.02...99990000 l

Measuring range [°C]	-20...100
Display range [°C]	-44...124
Resolution [°C]	0.1
Set point SP [°C]	-19.6...100
Reset point rP [°C]	-20...99.6
Analogue start point [°C]	-20...76
Analogue end point [°C]	4...100
Frequency start point, FSP [°C]	-20...76
Frequency end point, FEP [°C]	4...100
Frequency at the end point FRP [Hz]	1...10000

Accuracy / deviations

Accuracy (in the measuring range)	± (2,0 % MW + 0,5 % MEW)
Repeatability	± 0,2 % MEW

Accuracy [K]	± 2,5 (Q > 5 % MEW)
Temperature coefficient [% of the span / 10 K]	0,2

Response times

Response time [s]	< 0.25;(dAP = 0, T09)
Damping process value dAP [s]	0...5

Dynamic response T05 / T09 [s]	5,7 / 86

Software / programming

Diagnostic functions	direction of flow detection; signal quality

Interfaces

Communication interface	IO-Link
Transmission type	COM2 (38,4 kBaud)
IO-Link revision	1.1.3
SDCI standard	IEC 61131-9: 2013-07
Profiles	Identification and Diagnosis (0x4000)
Required master port type	A
Process data analogue	3
Process data binary	2
Min. process cycle time [ms]	9.6
IO-Link process data (cyclical)	function bit length totaliser 32 Flow monitoring 32 Temperature monitoring 32 status 4 Output 1 1 Output 2 1
Supported DeviceIDs	Type of operation DeviceID default 1635

Operating conditions

Ambient temperature [°C]	-20...60
Storage temperature [°C]	-25...80
Protection	IP 67

Tests / approvals

EMC	DIN 61326-1:2021
Shock resistance	DIN IEC 68-2-27 20 g (11ms)
Vibration resistance	DIN IEC 68-2-6 5 g (10...2000Hz)
MTTF [years]	160
UL approval	UL Approval no. I034
Pressure Equipment Directive	can be used for group 2 fluids; group 1 fluids on request

Weight [g]	494.6
Type of mounting	inlet pipe length 5xDN; outlet pipe length 1xDN
Materials	housing: stainless steel (1.4404 / 316L); Display: PFA; Sealing Display: FKM; connector: POKAN
Materials (wetted parts)	Pipe section: stainless steel (1.4404 / 316L); Process connection sealing: Centellen Flat seal
Process connection	G 3/4 DN20 external thread
Surface characteristics Ra/Rz of the wetted parts	1.25µm

Displays / operating elements

Display	colour display 1,44", 128 x 128 pixels Switching function 2 x LED, yellow diagnosis 1 x LED, three-colour

Accessories

Items supplied	Flat seal 2, Centellen package insert

Remarks	MW = measured value MEW = Final value of the measuring range pulse and totaliser signal are only available for one of the two outputs the accuracy indications are adhered to over the entire application area
Pack quantity	1 pcs.

Electrical connection

Connection	Connector: 1 x M12; coding: A; Contacts: gold-plated

Diagrams and graphs

Note on pressure loss

derating ambient temperature	1 Ambient temperature 2 Medium temperature

ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — We reserve the right to make technical alterations without prior notice. — EN-GB — SU7020-00 — 07.03.2024 —