Fluid Control Systems Selected product range

278INSERTION flow sensor8020Type 8020 can be combined with...• 15 to 400 mm orifice• Economic integration in pipe systems withoutany additional piping• 3-wire frequency pulse version to directlyinterface with PLC’s (both PNP and NPN)• Connection to Bürkert devices in remoteversionsType S020Insertion fittingType S020Welding tabType 8025Flow transmitterwall-mountedThe sensor Type 8020 for continuous flow measurementis specially designed for use in neutral, slightlyaggressive, solid-free liquids.Technical dataMeasurement range from 0.2 m 3 /h up to 4500 m 3 /hFlow velocity0.3 to 10 m/sSensorsThe sensor consists of a transducer mounted insidethe armature and a paddle-wheel with bearings seton the end of the armature. The paddle-wheel is setin motion by the flow of the medium and generatesa frequency signal proportional to the flow in thetransducer (Hall or Hall “Low Power” element).The Bürkert designed Insertion fitting system ensuressimple installation of the sensors into all pipes fromDN15 to 400.The flow sensor can be combined with other Bürkertunits such as the Type 8025 T flow transmitter or Type8025 B batch controller (for panel or wall mounting),the Type 8032 remote flow sensor and with suitableevaluation units (e.g. PLC).Accuracy 1)Teach-In (via a remote transmitter)Standard K-factorRepeatability≤ ±0.5% o.F.S.* (at 10 m/s)≤ ±(0.5% o.F.S.* + 2.5% o.R.*)≤ 0.4% o.R.*Electrical connection Cable plug acc. to DIN EN 175301-803Connection cable Max. 50 m, shielded, max. 1.5 mm 2Protection classRelative humidityFluid temperatureAmbient temperatureStorage temperatureIP 65 with cable plug mounted and tightened≤ 80%, non condensated0 to +50 °C (32 to 122 °F) (fitting in PVC)0 to +80 °C (32 to 176 °F) (fitting in PP, PVDF, brass,stainless steel)0 to +60 °C (32 to 140 °F)0 to +60 °C (32 to 140 °F)Max. fluid pressure PN10 (see pressure-temperature chart, page 295)Viscosity of fluidsFitting body materialOther materialsElectronic housingUnion nutMaterials wetted partsSensor armature, paddle-wheelAxis and bearingSeal300 cSt. max.PVC, PP, PVDF, stainless steel 1.4404/316L, brassPEPCPVDFCeramics (Al 2O 3)FKM (EPDM in option)Orifice DN 15 to DN 400 (see fitting Type S020, pages 294 to 301)Sensor with Hall transducerOperating voltageCurrent consumptionOutput signal12 to 36 V DC≤ 50 mASensor with Hall “Low Power” transducerOperating voltageCurrent consumptionOutput signal* o.F.S. = of Full Scale (10m/s)o.R. = of ReadingTransistor, PNP or NPN, Open collector, max. 100 mA,0 to 300 Hz.12 to 36 V DC (via Bürkert transmitter)< 0.8 mATransistor, NPN, Open collector, max. 100 mA,0 to 300 Hz.1) under reference conditions, i.e. fluid = water, temperatures = 20°C,up and downstream distances respected, adapted dimensions and pipesSubject to modifications