Vibrating Fork Level Switch

Vibrating ForkLevel SwitchNIVOGUARDALV810ALV 830ALV 860FeaturesCalibration FreeAvoids build-upCompact DesignAlarm Status IndicationOpen collector OutputConforms to InternationalStandards

Vibrating ForkLevel SwitchThe vibrating fork level switch is specificallydesigned for sensing the presence of low-densitydry powders or fine granular solids.The stainless steel forks offer reliable operationwith even very low-density materials. Operationof the instrument is unaffected by parameterssuch as changing material composition,changing moisture content and low specificgravity. The vibrating fork switch offers a reliablemeans of detecting pneumatically conveyedmaterials.A low frequency signal is used to vibrate thepiezo-electric crystal. The crystals connected tothe tines of the fork cause them to vibrate.On contact with the material, these vibrationsget damped. The attenuation in the vibrations issensed by the electronics that generates analarm.NIVOGUARDALV810CompactNIVOGUARDALV 830General PurposeNIVOGUARDALV 860IntelligentTechnical SpecificationsCalibration FreeEnsures Easy and Quick installation.Avoids build upThe vibrations of the fork provide a self-cleaningaction ensuring that no build-up occurs.Compact DesignSuitable for installation in restricted spaces.Alarm Status IndicationLED's on the face of the instrument providevisual indication of the process status.Open collector OutputOffers seamless integration with PLC, SCADAand DCS systems.Conforms to International StandardsDesigned to meet global requirements andavailable with international approvals.Mains SupplyOutputsTime DelayOptionFork Vibrating FrequencyAmbient TemperatureProcess TemperatureOptionProcess PressureHousingFork MaterialMax. Insertion LengthProtectionOption85 Vac to 265 Vac, 50/60 Hz,18Vdcto30VdcLED, Relay, Open Collector2 to 30 seconds adjustable80 Hz ± 5 Hz-20°Cto +60°C80°C max.1 50°C max.10 bar max.Cast AluminumSS3166000 mmIP67Ex-proof ProtectionEExibIIBT4

Product RangeA wide range of converters are available to suit thespecific customer needs.Compact ModelFor OEM's and for installation in restrictedspaces. The electronics is enclosed in a compacthousing and integrated with the probe into asingle mechanical unit.General Purpose ModelSimple to use, having all the essential features.Suitable for most of the typical applications.Also available in remote version.Intelligent ModelMicro-controller based instrumentsincorporating all the features of the generalpurpose instrument and offering additionalconfidence in the output signal with built-indiagnostics. Also available in remote version.Operation in Hazardous LocationsThe instruments are also available withIntrinsically safe electronics or Explosion proofhousings for use in potentially explosiveenvironments.All of the above converters are availablewith the below mentioned forks:• Standard insertion length of 225 mm.• Cable extension up to a maximum insertionlength of 6 m.• Rigid Pipe extension up to a maximuminsertion length of 3.5 m.

Nivo Vibrating Fork LevelSwitch provide trouble freesensing ofDry PowdersCementPulverised coalCoffee powderMilk powderChemical powdersFine grained SolidsFood GrainsPlastic PelletsWood ChipsFertilizersSugar CrystalsLow Density SolidsFly ashHuskThermocole granulesand many more!We reserve the right to modify the technical data without prior notice.Manufactured byNivo Controls Private Limited104-11 5, Electronic Complex, Indore 452 010. India.PhoneFaxE-mailURL+ 91 731 4081305+ 91 731 2550075info@nivocontrols.comwww.nivocontrols.comMarketed & Supported ByToshbro Controls Private LimitedF-68,Solaris-l,Saki Vihar Road, Powai, Mumbai 400072.E-mail : info@toshbrocontrols.comWebsite : www. toshbrocontrols.comTel :+91 22 2847 0728Ahmedabad. Bangalore. Chennai. Hyderabad. IndoreKolkata. New Delhi. Pune. Vadodara08/MKT/181/V0