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IFM SMF821
SMF821
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Description
Magnetic-inductive flow meter (SM Foodmag 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
User-friendly communication and parameterisation via IO-Link
Specification
Product characteristics
| Measuring range | 75...7500 l/min 4500...450000 l/h 20...1981 gpm 0.33...33.42 ft/s |
|---|---|
| 75...7500 l/min | 4500...450000 l/h |
| Nominal diameter | DN125 (5“) |
| 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 | -20...150 °C -4...302 °F |
| -20...150 °C | -4...302 °F |
| Min. burst pressure | 348 psi 2.4 MPa |
| 348 psi | 2.4 MPa |
| Pressure rating | 232 psi 1.6 MPa |
| 232 psi | 1.6 MPa |
Electrical data
| Operating voltage[V] [V] | 18...32 DC |
|---|---|
| Current consumption[mA] [mA] | 250; (24V) |
| Protection class | III |
| Reverse polarity protection | yes |
| Power-on delay time[s] [s] | < 5 |
| Measuring principle | magnetic-inductive |
Inputs / outputs
| Total number of inputs and outputs | 2 |
|---|
Inputs
| Inputs | OUT2 external totaliser reset |
|---|---|
| OUT2 | external totaliser reset |
Outputs
| Total number of outputs | 2 |
|---|---|
| Output signal | OUT1 pulse signal; totaliser switching signal; diagnostic signal; IO-Link OUT2 analogue signal; pulse signal; totaliser switching signal; diagnostic 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 |
| Number of analogue outputs | 1 |
| Analogue current output[mA] [mA] | 4...20; (skalierbar) |
| Max. load[Ω] [Ω] | 500 |
| Resolution of analogue output | 0.38 µA |
| Number of digital outputs | 2 |
| Max. voltage drop switching output DC[V] [V] | 2 |
| Permanent current rating of switching output DC[mA] [mA] | 100 |
| Switching frequency DC[Hz] [Hz] | 0...10000 |
Measuring/setting range
| Measuring range | -20...150 °C -4...302 °F |
|---|---|
| 75...7500 l/min | 4500...450000 l/h |
| Display range | -20...150 °C -4...302 °F |
| -9000...9000 l/min | -540000...540000 l/h |
| Resolution | 0.01 °C 0.1 °F |
| 0.1 l/min | 500 l/h |
| Note on factory setting | 0…485 gpm |
| Analogue start point ASP | -7500...6000 l/min -450000...360000 l/h -1981...1585 gpm -33.42...26.73 ft/s |
| -7500...6000 l/min | -450000...360000 l/h |
| Analogue end point AEP | -6000...7500 l/min -360000...450000 l/h -1585...1981 gpm -26.73...33.42 ft/s |
| -6000...7500 l/min | -360000...450000 l/h |
| Low flow cut-off LFC | 0...6000 l/min 0...360000 l/h 0...1585 gpm 0...26.73 ft/s |
| 0...6000 l/min | 0...360000 l/h |
| Pulse length[s] [s] | 0.00005...2 |
| Pulse value | 0.038...99990000 I |
| -20...150 °C | -4...302 °F |
| 0.01 °C | 0.1 °F |
| Analogue start point | -20...116 °C -4...240.8 °F |
| -20...116 °C | -4...240.8 °F |
| Analogue end point | 14...150 °C 57.2...302 °F |
| 14...150 °C | 57.2...302 °F |
| Measuring range[µS/cm] [µS/cm] | 100...100000 |
| Display range[µS/cm] [µS/cm] | 0...10000000 |
| Resolution[µS/cm] [µS/cm] | 1 |
| Analogue start point[µS/cm] [µS/cm] | 0...80000 |
| Analogue end point[µS/cm] [µS/cm] | 20000...100000 |
Accuracy / deviations
| 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 |
|---|---|
| with optional factory calibration (availability is being planned) | ± (0,2 % MW + 2 mm/s) |
| standard | ± (0,5 % MW + 1,5 mm/s) |
| Repeatability | ± 5% MW |
| Accuracy[K] [K] | ± 1 |
| Repeatability[K] [K] | ± 0,5 |
| in the range of 100...20000 µS/cm | ±10% MW |
| in the range of 20000...100000 µS/cm | ±20% MW |
Response times
| Response time[s] [s] | < 2 |
|---|---|
| Damping process value dAP[s] [s] | 0...5 |
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 | Smart Sensor - SSP 4.3.4 Measuring and Switching Sensor, floating point, 4 channel BLOB Binary Large Object transfer Common - I&D Identification and Diagnosis Extension Sensor Control Wide Extension Quantity detection, switches when value exceeds the setpoint Function Locator Function ProductURI |
| Smart Sensor - SSP 4.3.4 | Measuring and Switching Sensor, floating point, 4 channel |
| BLOB | Binary Large Object transfer |
| Common - I&D | Identification and Diagnosis |
| Extension | Quantity detection, switches when value exceeds the setpoint |
| Function | ProductURI |
| SIO mode | yes |
| Required master port type | A |
| Process data analogue | 6 |
| Process data binary | 8 |
| Min. process cycle time[ms] [ms] | 1.9 |
| IO-Link process data (cyclical) | totaliser 32 flow 32 temperature 32 conductivity 32 status 4 binary switching information 8 |
| totaliser | 32 |
| flow | 32 |
| temperature | 32 |
| conductivity | 32 |
| status | 4 |
| binary switching information | 8 |
| IO-Link functions (acyclical) | direction of flow detection; totaliser; memory; operating hours counter; internal temperature; simulation function |
| Supported DeviceIDs | default 1805 |
| default | 1805 |
Operating conditions
| Ambient temperature | -20...65 °C -4...149 °F |
|---|---|
| -20...65 °C | -4...149 °F |
| Storage temperature | -20...80 °C -4...176 °F |
| -20...80 °C | -4...176 °F |
| Protection | IP 67; IP 69; (to DIN EN 60529) |
Tests / approvals
| EMC | DIN 61326-1 |
|---|---|
| Shock resistance | DIN IEC 68-2-27 20 g (18ms) |
| DIN IEC 68-2-27 | 20 g (18ms) |
| Vibration resistance | DIN IEC 68-2-6 5 g (10...2000Hz) |
| DIN IEC 68-2-6 | 5 g (10...2000Hz) |
| MTTF[years] [years] | 81 |
| UL approval | UL approval no. I031 File number UL E174189 |
| UL approval no. | I031 |
| File number UL | E174189 |
| Pressure Equipment Directive | Sound engineering practice; can be used for group 2 fluids; group 1 fluids on request |
Mechanical data
| Weight[g] [g] | 15076 |
|---|---|
| Housing | cylindrical |
| Inlet pipe length | 5 x DN |
| Outlet pipe length | 2 x DN |
| Dimensions[mm] [mm] | Ø 220.1 / L = 200 |
| 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: polysulfone; Display-Sealing: FKM; LED ring: PP |
| Materials (wetted parts) | Pipe section: PFA; electrodes: stainless steel (316L/1.4435) |
| Nominal diameter | DN125 (5“) |
| Process connection | ifm-specific device flange |
| Surface characteristics Ra/Rz of the wetted parts | Ra < 0.4 μm |
Displays / operating elements
| Display | process value full graphics TFT display, multi-colour 3,5" 320 x 240 Pixel display layouts: 4 display rotation: 4 x 90° operating status LED ring, three-colour |
|---|---|
| process value | full graphics TFT display, multi-colour 3,5" 320 x 240 Pixel |
| operating status | LED ring, three-colour |
| Display unit | l/min; l/h; hl/min; hl/h; m³/min; m³/h; m/s; gpm; gph; ft/s; °C; °F; μS/cm; S/m; ms/cm |
| Factory setting | gpm; °F; μS/cm |
| Language | German; English; Spanish; French; Italian; Japanese; Korean; Portuguese; Chinese |
| Operating elements | 4 capacitive pushbuttons |
| 4 | capacitive pushbuttons |
Remarks
| 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 (1/2): water (free of gas bubbles), 15...35 °C, process connection: DIN32676 series A, pipe standard suitable for process connection reference conditions (2/2): inlet pipe length 10xDN, outlet pipe length 5xDN, device settling time: 30 minutes, device orientation: horizontal, display orientation: up accuracy specifications according to factory certificate on delivery |
|---|---|
| Pack quantity | 1 pcs. |
Electrical connection - plug
| Connector | 1 x M12; coding: A; Contacts: gold-plated |
|---|
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