exosense specsheetPRINT, politechnika łódzka, inżynieria chemiczna i procesowa, rok I semestr 1, pomiary ...
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//-->LEVEL SENSORSFeatures• Non-Intrusive,stays outside-the-bottle• Very small footprint• Simple installation• Robust design for rough handling• No calibration needed• Highly repeatable• Eliminates fluid compatibility issues• Mini USB style, moisture-resistantconnector for ease of use• Works on most plastic bottlesExOsense™Piezo-ResonantLiquid Level SensorsDeveloped specifically for the In Vitro Diagnostic market.Benefits•••••••Never touches the fluidEliminates fluid contaminationImproves instrument uptimeMaximizes bottle volumeGets closest to high and low levelsNo special mounting requiredEliminates testing for mediacompatibilityEquipment Used On•••••••Clinical chemistryHematologyImmuno-chemistryHistologyMedical Laser SystemsHemodialysisCytologyNew ExOsense™is the first affordable, non-intrusive liquid level sensor for plastic fluidcontainers. ExOsense™ sensors adhere to the outside of plastic bottles and are unaffectedby the color or transparency of the plastic. Liquids inside the bottle are untouched, so withExOsense™ there is no issue of material compatibility or contamination. Best of all, ExOsense™sensors fit any size and shape vessel, from small bottles to large tanks.The ExOsense™ sensor head features a peel-and-stick adhesive face that can be affixedanywhere on the outside of the tank to provide high, low or any intermediate point level fluidsensing. A detachable mini USB cable feeds the solid-state switch unit.Fluid MonitoringApplications••••••••ReagentsWasteDiluentDetergent/washDialysateCoolantSalinePure waterOperating PrincipleOur sensor incorporates proprietary transducer technology employingpiezoelectric material. When piezoelectric material is excited, it createsan acoustic signal as a function of the naturalresonance of the material. ExOsense™ sensorsgenerate this acoustic signal, direct it through thebottle wall and sense the reflected pulse.The amount of energy that is reflected isdetermined by the “acoustic impedance*mismatch” of the materials in use. For example,if sound passes through two materials withsimilar acoustic impedances (figure 1), very littleenergy will be reflected. If sound passes throughtwo materials with dissimilar impedance values(figure 2), the majority of the acoustic energy will bereflected. This acoustic impedance mismatch provides the basis for thedetection of liquid level.*Acoustic Impedance: a material property defined as the product of sound velocity andmaterial density. The relative transmission and reflection at an interface are governed inpart by the acoustic impedances of the materials on each side of the interface. The letter Zis used for acoustic impedance and is expressed in [kg/s m2] = 1 Rayl:Water Z = 1.5 MRayls; Air Z = 0 MRaylsBottleWallFig. 1ZPLASTIC= 1.8ZWATER= 1.5Fig. 2ZPLASTIC= 1.8ZAIR= 0Thinking Outside the Box…Sensing Outside the BottleZ = Acoustic ImpedanceMEDICALPreliminarySpecificationsCompatible Plastic Bottle MaterialsPolyethylene (PE), Polypropylene (PP)Polysulfone (PS), Polycarbonate (PC)Bottle Materials Not RecommendedTeflon® family, or Any Foamed Core PlasticsMin. Bottle Diameter for Round Bottles2˝ (50.8 mm)Bottle Wall Thickness0.02˝ to 0.15˝ (0.5 mm to 3.8 mm)Termination of TransducerMini USB Style Connector to ElectronicsInput Power Supply (volts)4.75 to 5.25 VDC (Alternative configuration availablefor 6 to 32 VDC.)Power Consumption (current)50 mA (maximum)CalibrationNone.Works on Bottle Materials or Wall Thickness Without User InputOutput ConfigurationOpen Collector; 40 mA, Max.Switch ConditionNormally Open/Normally ClosedResponse Time<100 msec.Low Noise (RFI/EMI)3V per Meter Field StrengthAgency Approvals (pending)UL 508, CE, IEC 60601 & IEC 61326 (EMI/RFI)Temperature (sensor)32°F to158°F (0°C to 70°C)Mean Time Between Failure50K Hours (target)Repeatability±0.039˝ (±1 mm)Accuracy±0.063˝ (±1.6 mm)Sealing CapabilityIP65Super Simple Installation:1. Peel & StickPeel the adhesive cover off the sensorand stick it on the bottle where youwant to indicate the level.2. ConnectConnect the sensor to the electronicmodule using the mini USBconnector.3. SenseApply power and sense the fluidlevel.DimensionsActual Size1.25˝ (32 mm)Dia.0.560˝(14.2 mm)1.72˝(44 mm)0.686˝(17.4 mm)0.436˝(11.1 mm)0.436˝(11.1 mm)0.118˝ (3 mm)Dia.Our Medical Equipment Specialists areready to discuss your sensor requirements,so don’t hesitate to give us a call.For Flat Wall BottlesFor Round Bottles50 YEARS OF INNOVATIONGemsSensors.com800.378.1600
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