Apollo - Model RN3 - Turbine Flowmeter - Brochure

APOLLOApplicationThis range of flowmeters is used for measuringhighly corrosive solutions such as nitric,sulphuric, hydrochloric and hydrofluoric acids. Itis ideal for measuring agressive andnon-conductive liquids which have proven to beincompatible with most magnetic andmechanical flowmeters.The long term reliability and stability of theHoverflo make it ideal for both batch andcontinuous process operation.In hazardous areas you can use the flowmeterswith the Apollo IS pick-off coil, approved toATEX II 1 G EEx ia IIC T5. The signal can beused in the IS area or transmitted to the safearea using the intrinsically safe P5 preamplifierand suitable barriers.Principle of OperationThe flowmeter has two turbines connected by acentral shaft. The liquid flows through bothturbines, spinning the shaft whilst it hovers. Thelower turbine has magnets sealed in the rimwhich are detected by the sensor to generatepulses. The frequency of the pulses isproportional to your flow rate.InstrumentationThe signal can be used for a local display,remote display or converted for transmission toa separate control system. Apollo have a rangeof instruments to suit all your requirements.ConstructionAll wetted parts are either PVC or PVDF for maximumchemical resistance. The seals are PTFE or viton.The meter combines the advantages of a turbineflowmeter without the problems of bearing wear.CalibrationAll Apollo flowmeters are individually calibrated withwater and are traceable to national standards.We provide you with a test certificate for each metershowing the number of pulses per litre, which is usedto set the instrumentation.InstallationThe flowmeter is installed horizontally in the pipeline.To reduce turbulence and achieve the best resultsfrom your flowmeter we recommend that you install itin a straight section of pipe with at least 10 pipediameters upstream and 5 pipe diametersdownstream.Control valves should be installed downstream of theflowmeter.The flowmeter must be kept full of liquidand reverse flow must be avoided.An amplifier is required if you need to transmit thesignal more than 4 metres, or if there is an electricallynoisy environment close to pumps, solenoids,switchgear or high current cables.Intrinsically safe systems always require an IS pick-offcoil. The IS P5 preamplifier is required fortransmission to the safe area through barriers.HOVERFLO 2 ALL PLASTICBEARINGLESS FLOWMETERThe Hoverflo will accurately measure the flow of highly corrosive,aggressive and non lubricating liquids and chemicals.All plastic bearingless design ?No maintenanceNo corrosionNo drift or wearAccurate metering of difficult liquids ?Well provenReduce waste and costsImprove product qualityHigh quality manufacture ?ISO 9001 certified companyApprovals for use in hazardous areasIndividual calibration certificatesFreefax 0800 328 6673SizemmCartridgematerialOverallflowrangelitre/minLinear flowrangelitre/minK FactorPulses/litreMaximumparticlesize mm15 PVC 3.5 - 35 7-35 160 0.415 PVDF 4 -35 7.5-35 160 0.425 PVC 10-110 22-110 83 1.025 PVDF 12-110 22-110 83 1.040 PVC 15-250 40-250 29 1.540 PVDF 18-250 50-250 29 1.550 PVC 35-440 85-440 17 2.050 PVDF 42-440 85-440 17 2.080 PVC 70-1000 220-1000 10.5 3.080 PVDF 85-1000 240-1000 10.5 3.0SizemmA1FlangedA2SocketB C D15 150 85 55 150 6425 200 115 65 170 7040 250 150 90 220 12550 280 180 105 250 12580 430 245 160 340 190Hoverflo 2 FlowmeterFlow Path DiagramA1A2CBDDimensionsISO 9001 Cert. FM 31709APOLLOApollo Flow Measurement Ltd, Charles Street, Walsall WS2 9LZTel: 01922 645 647 Fax: 01922 640 326Contact our flow measurement specialists for FREEadvice on your applicatione:mail sales@apolloflow.co.uk website www.apolloflow.co.ukThe expertadvice and thecalls are FREESo call nowFreefax 0800 328 6673Freefone 0800 328 6674SpecificationLinearity: +/- 0.5% (+/-1.0% for 15mm) ofreading throughout linear range+/-1.0% of maximum reading for theoverall rangeRepeatability: +/-0.125% of readingPressure drop: 0.85 bar at maximum flowMaximum pressure: PVC body 8 bar at 200C3 bar at 600CPVDF body 16 bar at 200C10 bar at 600C5 bar at 1100CTemperature range: PVC -10 to 600CPVDF -10 to 1100CBody connections: Socket weldStub flanges with backing rings toANSI 150DIN ND 16BS10 Table D, EPickoff coil output : Sine wave mV high frequency signalPreamplifier output: Sine wave current pulse 1.5-12mAMaterials of ConstructionBody: PVC or PVDFCartridge carrier: PVC or PVDFMeasuring cartridgeand rotor: PVC or PVDFUpper and lower sealing PVC or PVDF supported byplates: 316 stainless steel cover plateStuds and nuts: Stainless steelO rings: Viton or PTFEPerformanceDimensions in mm