Flow sensors SFAW - Festo

1 Flow sensors SFAWS ubject to change 2018/052 Internet: sensors SFAWKey featuresGeneralThe sfaw is intended for use in meas uring and monitoring the flow, volumeand temperature of liquid media inpiping or in terminals in industry. Theflow velocity is recorded in accordancewith the vortex principle. The flow rateand the accumulated volume arecalculated from the flow velocity. Anoptional, integrated temperaturesensor records the temperature of themedia. Connection to higher-levelsystems is provided by 2 switchingoutputs, an analogue output and/oran IO-Link interface, depending on thetype. The outputs can be configured asappropriate to the switching outputs can be con figured to monitor a threshold valueor a range. Either PNP or NPN andeither normally open (NO) or normallyclosed (NC) can be set for the values can be read out andparameters changed and transmittedto additional devices via the Cooling circuit monitoring Monitoring for leaks and linebreaks Process water monitoring Filling volume monitoringOverviewAn installation concept with short mounting and dismounting times that is easy toimplement in all installation sensor can be rotated through360 in the direction of flow, so thatonce it has been installed it can bealigned without the need for the screwed-in locking plate (notshown) has been disconnected, it canbe removed.

2 The sensor can then beexchanged quickly by undoing theclips on the sensor body andremoving them. The fluid connectionscan then be detached from the in colourA large, illuminated LCD display in creases the operational safety andmakes the currently displayed valuesfor flow rate or medium temperatureand the accumulated volume easy toread. The rotatable display ensuresease of readability and usability whenmounted either horizontally on the switching status( a flow threshold has not beenachieved or media temperature ex ceeded) a change in colour to red canbe set in the display for the switchingoutputs. As a result, it is possible toreliably identify the system status froma large distance or in connectionsElectronicsSensor signal monitoring Free choice of various mediaconnections: Threaded connection (femalethread) (G, RC, NPT) Clamped terminal connection to DIN 32676 Female hose connector Free choice of media connectiontype on sensor input and sensoroutput side Basic sensor body and mediaconnections can be obtainedseparately Ultra-simple and fast mounting ofmedia connections using clips Option of designing dedicated,application-specific connectionsMaximum versatility and reducedwarehousing thanks to switchableelectrical outputs: PNP/NPN NC/NO contact function Current output 4.

3 20 mAor voltage output 1 .. 5 V, 0 .. 10 VFlow signal monitoring to detectunstable flows . Possible causes forunstable flows include: Air in the line Line filling during start-up Turbulent flows as a result ofunfavourable or incorrectinstallation2018/05 Subject to change3 Internet: sensors SFAWKey featuresOperationMonitoring and setting a flowthreshold, a flow range, a temperaturethreshold and a temperature rangeusing a teach-in function or byentering values. Flow indication, medium temperature indication, switching outputs andanalogue value output for flow rates and temperature can be set on site inone device Fast commissioning of the flow sensor thanks to intuitive menu navigation Display colour red/blue as visual feedback that the flow rate or temperaturethresholds have not been achieved or have been exceeded.

4 Value memory for monitoring the flow and temperature (storage offlow and temperature peaks) To prevent undesirable switching status changes an integrated adjustablefilter damps the sensor signal generated by flow peaks Scaling the analogue output to increase the signal dynamics Switchable flow and volume units l/min, l/h, US gal/min, cfm, l, m , US gal, cft Switchable temperature units C, F ECO function with option to set display switch-off Optional security code can be freely chosen (4-digit code) All settings that have been carried out on one sensor (master) can be trans ferred (replication) to other, identical sensors (device). This makes it possibleto significantly shorten commissioning time. Recorder mode for manual volume measurements with start, stop and resetfunctionality Adjustable volume pulseIO-Link Serial communication integrated using IO-Link Analogue process values are provided digitally The sensor can be parameterised and maintained remotely at control levelusing an IO-Link master Automatic parameterisation following sensor change: no need to repeatparameterisation and sensor settings after changing the sensorSubject to change 2018/054 Internet.

5 sensors SFAWP eripherals overview253679aJ1148854432112249aAMounti ng components and accessoriesDescription Page/Internet1 Connecting thread for flow measuring range 32 with connection G , G , R , R , NPT , NPT 162 Connecting hose connector for flow measuring range 32 with connection size 13 mm or 19 mm163 Connecting terminal connection for flow measuring range 32 with connection DN15174 Connecting thread for flow measuring range 100 with connection G , G1, R , R1, NPT , NPT1165 Connecting terminal connection for flow measuring range 100 with connection DN20176 Locking plateSFAWFor securing the clips (locking plate is screwed to the sensor body) 7 Wall mountingSAMH-FW-WFor wall or surface mounting of the flow sensor148 ClipSAMH-FW-SBFor mounting the fluid connections on the body of the flow sensors159 SealSASF-FW-S-EFor sealing the fluid connections against the body of the flow sensors14aJProtective coverSACC-PU-GFor covering the display and control elements15aAConnecting cableNEBU 172018/05 Subject to change5 Internet: sensors SFAWType codesSFAW E PNLKPNVBAM12 TypeSFAWFlow sensorFlow measuring range [l/min]32 Max.

6 32100 Max. 100 Further measured variable NoneTTemperatureConnection type, inputCClamped terminal connectionSFemale hose connectorTFemale threadXUser-specific connectionConnection standard, input NoneS5 DIN 32676 Connection size, inputG12G female threadG34G female threadG1G1 female thread13 Female hose connector 13 mm15 Clamped terminal connection DN 1520 Clamped terminal connection DN 20 Connection type, outputEAs for input connection typeElectrical output 1 PNLKPNP or NPN or IO-LinkElectrical output 2 PNVBAPNP or NPN or 0 .. 10 V or 1 .. 5 V or 4 .. 20 mAElectrical connectionM12 Straight plug, M12x1, 5-pinAdditional variants can be ordered using the modular product system 12 Further connection options for input and output Electrical accessories Protective devicesSubject to change 2018/056 Internet: sensors SFAWT echnical Maximum versatility and reducedwarehousing owing to switchableelectrical outputs: PNP/NPN, switchable N/C or N/O contact, switchable Current output 4.

7 20 mA orvoltage output 1 .. 5 V, 0 .. 10 V,switchable Pulse output for volume measure ment can be freely selected Measuring signal filter for settingthe rise time Additional filter for smoothing thedisplay valuesGeneral technical dataCertificationRCM markc UL us - Listed (OL)CE marking (see declaration of conformity)To EU EMC DirectiveNote on materialsRoHS compliantInput signal, measuring element-32-100 Measured variableFlow, temperatureDirection of flowUnidirectional P1 } P2 Measuring principle for flowVortexMeasuring principle for temperaturePT1000 Flow measuring range[l/min] .. 325 .. 100 Temperature measuring range[ C]0 .. 90 Operating pressure[bar]0 .. 12; max. 12 bar at 40 C, max. 6 bar at 100 CMax. overload pressure[bar]40 Operating medium1)Liquid media, neutral liquids, waterTemperature of medium[ C]0.

8 90 Ambient temperature[ C]0 .. 50 Nominal temperature[ C]231)Media with a kinematic viscosity /sec. [cSt]. Compatibility of the media with the substances in contact with the media must be Subject to change7 Internet: sensors SFAWT echnical dataElectrical data-32-100 Output, generalAccuracy of zero pointFlow 50% FS1)[% FS] 2 Accuracy of marginFlow 50% FS1)[% FS] 3 Repetition accuracy of zero pointFlow 50% FS2)[% FS] accuracy of marginFlow 50% FS2)[% FS] 1 Accuracy of temperature[ C] 2 Temperature coefficient of margin[% FS]Typ. % FS/KSwitching outputSwitching output2 x PNP or 2 x NPN or IO-Link, switchableSwitching functionThreshold value comparator or window comparator, freely programmableSwitching element functionN/C contact or N/O contact, switchableSwitch-on time[ms]400 with filter time constant 150 ms (adjustable)Switch-off time[ms]300 with filter time constant 150 ms (adjustable)Max.

9 Output current[mA]100 Voltage drop[V]Max. / pull-up resistorPNP: integrated; NPN: not integratedInductive protective circuitPresentAnalog outputCharacteristic curve for flow rate[l/min.]0 .. 320 .. 100 Characteristic curve for temperature[ C]0 .. 100 Output characteristic curve for current[mA]4 .. 20 Output characteristic curve for voltage[V]0 .. 10 or 1 .. 5, adjustableRise time[ms]900 with filter time constant 150 ms (adjustable)Max. load resistance at current output[Ohm]500 Min. load resistance at voltage output[kOhm]15 Output, additional dataProtection against short circuitYesOverload protectionYesElectronic componentsOperating voltage range DC[v]18 .. 30 Max. current consumption[mA]260 Protection against incorrect polarityFor all electrical connectionsIO-Link, SIO mode supportYesElectromechanical componentsElectrical connectionStraight plug, M12x1, 5-pin, A-codedMax.

10 Connecting cable length[m]30, for IO-Link operation 201)Accuracy of flow value = 2% FS for flow 50% FS and 3% for flow 50% FS2)Repeat accuracy of flow value = FS for flow 50% FS 1% for flow 50% FSSubject to change 2018/058 Internet: sensors SFAWT echnical dataPin allocationPinMeaningPlug M12x1, 5-pin1 Operating voltage: +24 V DC2 Switching output OutB or OutD or analogue output30 V4 Switching output OutA or OutC or IO-Link (C/Q line)5 Analogue output or not assignedMechanical system-32-100 Type of mountingWall bracketMounting positionAnyMaterials in contact with the mediumETFE, PA6T/6I reinforced, EPDM (perox.), stainless steelMaterialsHousingPA reinforcedWall bracketStainless steelProtective coverPAKey padTPE-OInspection windowPASealing ringEPDMD isplay/operation-32-100 Display typeIlluminated LCD, blueDisplayable unitsl/min, l/h, ft /min, US gal/min, l, m3, ft , US gal, C, FSwitching status indicationVisualSetting optionsTeach-in, IO-Link, via display and keysTamper-proofElectronic lockingSetting range for threshold valueVolume pulse[l].