Products
Sensors
Flow sensors / flow meters
Magnetic-inductive volumetric flow meters
SMF320

Magnetic-inductive flow meter

SMF320

SMG40KGFFRKG/USD

Magnetic-inductive flow meter

SMF320

SMG40KGFFRKG/USD

Magnetic-inductive flow meter (SMF series) for the food and beverage industry
Measured variables: flow rate, total volume, temperature, conductivity and fluid detection
Easy to set up thanks to app-based menu, guided installation and hygienic pushbuttons
Reduced cabling by combining supply voltage and output signals via an M12 connection
Housing design increases shock and vibration resistance

Product characteristics

Measuring range

5...750 l/min

300...45000 l/h

0.07...10 m/s

0.3...45 m³/h

Nominal diameter

DN40 (1 1/2“)

Process connection

ifm-specific device flange

Application

Special feature

Gold-plated contacts

Application

food and beverage industry

Media

conductive liquids; water; hydrous media

Note on media

food products such as beer, milk, fruit juices, soft drinks, ketchup, yoghurt, yoghurt toppings, ice cream

conductivity: ≥ 5 µS/cm

Medium temperature [°C]

-20...150

Min. bursting pressure

60 bar

6 MPa

Pressure rating

40 bar

4 MPa

Electrical data

Operating voltage [V]	18...32 DC
Current consumption [mA]	250; (24V)
Protection class	III
Reverse polarity protection	yes
Power-on delay time [s]	< 5
Measuring principle	magnetic-inductive

Inputs / outputs

Total number of inputs and outputs	2

Inputs

OUT2	external totaliser reset

Outputs

Total number of outputs

Output signal

OUT1	pulse signal; totaliser switching signal; diagnostic signal; IO-Link
OUT2	analogue signal; pulse signal; totaliser switching signal; diagnostic signal

Electrical design

PNP/NPN

Pulse output

flow rate meter

Short-circuit protection

yes

Type of short-circuit protection

pulsed

Overload protection

yes

analogue

Number of analogue outputs	1
Analogue current output [mA]	4...20; (skalierbar)
Max. load [Ω]	500
Resolution of analogue output	0.38 µA

Digital

Number of digital outputs	2
Max. voltage drop switching output DC [V]	2
Permanent current rating of switching output DC [mA]	100
Switching frequency DC [Hz]	0...10000

Measuring/setting range

Measuring range

5...750 l/min

300...45000 l/h

0.07...10 m/s

0.3...45 m³/h

Display range

-900...900 l/min

-54000...54000 l/h

-12...12 m/s

-54...54 m³/h

Resolution

0.1 l/min

50 l/h

0.01 m/s

0.05 m³/h

Note on factory setting

0...11,0 m³/h

Analogue start point ASP

0...600 l/min

0...36000 l/h

0...7.95 m/s

0...36 m³/h

Analogue end point AEP

150...750 l/min

9000...45000 l/h

2...9.95 m/s

9...45 m³/h

Low flow cut-off LFC

0...600 l/min

0...36000 l/h

0...7.95 m/s

0...36 m³/h

Pulse length [s]

0.002...2

Pulse value

0.001...99990000 I

Temperature monitoring

Measuring range [°C]	-20...150
Display range [°C]	-20...150
Resolution [°C]	0.01
Analogue start point [°C]	-20...116
Analogue end point [°C]	14...150

conductivity monitoring

Measuring range [µS/cm]	100...100000
Display range [µS/cm]	0...100000
Resolution [µS/cm]	1
Analogue start point [µS/cm]	0...80000
Analogue end point [µS/cm]	20000...100000

Accuracy / deviations

volumetric flow monitoring

Accuracy (in the measuring range)

with optional factory calibration (available from 2025)	± (0,2 % MW + 2 mm/s)
standard	± (0,5 % MW + 1,5 mm/s)

Repeatability

0,1% MW

Temperature monitoring

Accuracy [K]	± 1
Repeatability [K]	± 0,5

conductivity monitoring

Accuracy (in the measuring range)

in the range of 100...20000 µS/cm	±10% MW
in the range of 20000...100000 µS/cm	±20% MW

Repeatability

± 5% MW

Response times

volumetric flow monitoring

Response time [s]	< 0.3
Damping process value dAP [s]	0...5

Temperature monitoring

Response time [s]	< 3; (flow velocity: ≥ 0,5m/s)

conductivity monitoring

Response time [s]	< 2

Software / programming

Diagnostic functions	direction of flow detection; liquid detection

Interfaces

Communication interface

IO-Link

Transmission type

COM3 (230,4 kBaud)

IO-Link revision

1.1.3

SDCI standard

IEC 61131-9

Profiles

Function class	Designation
0x4000	Identification and Diagnosis
0x001B	Measuring and Switching Sensor, floating point, 4 channel

SIO mode

yes

Required master port type

Process data analogue

Process data binary

Min. process cycle time [ms]

1.9

IO-Link process data (cyclical)

function	bit length
totaliser	32
flow	32
temperature	32
conductivity	32
status	4
binary switching information	8

IO-Link functions (acyclical)

direction of flow detection; totaliser; Speicher; operating hours counter; internal temperature; simulation function

Operating conditions

Ambient temperature [°C]	-20...65
Storage temperature [°C]	-25...80
Protection	IP 67; IP 69

Tests / approvals

EMC

DIN 61326-1

Shock resistance

DIN IEC 68-2-27

20 g (18ms)

Vibration resistance

DIN IEC 68-2-6

5 g (10...2000Hz)

MTTF [years]

Pressure Equipment Directive

Sound engineering practice; can be used for group 2 fluids; group 1 fluids on request

Mechanical data

Weight [g]	4600
Inlet pipe length	5 x DN
Outlet pipe length	2 x DN
Materials	housing: stainless steel (316L/1.4404); flange: stainless steel (304/1.4301); electronics fixture: stainless steel (304/1.4301); electronics: stainless steel (316L/1.4404); Display: PPSU; Display-Sealing: FKM; LED ring: PP
Materials (wetted parts)	Pipe section: PFA; electrodes: stainless steel (316L/1.4435)
Nominal diameter	DN40 (1 1/2“)
Process connection	ifm-specific device flange
Surface characteristics Ra/Rz of the wetted parts	≤ 0.4 μm

Displays / operating elements

Factory setting

m³/h; °C; μS/cm

Display

process value	full graphics TFT display, multi-colour 3,5" 128 x 128 Pixel
	display layouts: 4
	display rotation: 4 x 90°
operating status	LED ring, three-colour
totaliser Display range	-999990...999990 m³
totaliser Resolution	0,00001 m³

Display unit

l/min; l/h; hl/min; hl/h; m³/min; m³/h; m/s; μS/cm; S/m; ms/cm

Language

German; English; Spanish; French; Italian; Japanese; Korean; Portuguese; Chinese

Operating elements

4	capacitive pushbuttons

Remarks

MW = measured value

MEW = Final value of the measuring range

pulse and totaliser signal are only available for one of the two outputs

reference conditions : water , 15...35 °C, inlet pipe length: 10 x DN, outlet pipe length: 5 x DN

Pack quantity

1 pcs.

Electrical connection

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

ifm electronic gmbh • Friedrichstraße 1 • 45128 Essen — We reserve the right to make technical alterations without prior notice. — EN-GB — SMF320-00 — 18.03.2024 —