Flow Sensors & Indicators

pFlow sensors and flow indicators are flowmeter devices used to measure the amount of liquid, gas or vapour that passes through them. They can also be known as flow gauges or liquid meters. Flow sensors are available as time measuring units, that measure flow rates over a set time period, or they can be totalising flow meters that continually measure the medium passed through./p pFlow sensors consist of a primary medium connection device, transducer and transmitter. The transducer senses the fluid that passes through the primary device. The transmitter produces an output signal from the raw transducer signal./p h2Types of Flow Sensors and Indicators/h2 pPaddlewheel Flow Sensors or Turbine: One of the most common types of flow sensor. The sensors are connected to a pipe with liquid passing through and turning a paddle wheel, the primary device calculates the speed as the paddle is turned. This simple structure is compact and can perform large-capacity measurement. Disadvantages are clogging and maintenance is required to cope with the axial wear otherwise the paddle needs replacing./p pRotaflow or Variable Area Flow Sensors: Rotaflow meters are a tapered tube and a float. It is most widely used for gases and liquids flow measurement because of its low cost, simplicity, low pressure drop and linear output./p pMagnetic-Inductive Sensors: This type of sensor detects three process categories, volumetric flow quantity, consumed quantity and medium temperature./p h2Applications for Flow Sensors/h2 pEach type of flow sensor has its own specific applications and installation constraints. There is no one size fits all flowmeter. The way to select the right flowmeter is to think about the application as a guide, not the technology. Many of the technologies work well on many applications. Starting with the application, will help to select the technology based on accuracy, cost, durability and reliability, rather than trying to make the technology fit the application you have. Can include the following applications:/p ulliWater treatment/li liCooling systems/li liIndustrial Washing Systems/li liIrrigation/li/ul h2Things to consider:/h2 ulliWhat is the fluid being measured, if not water what is its viscosity?/li liRate measurement or totalisation?/li liDisplay or signal output?/li liWhat is the minimum and maximum flowrate, process pressure and process temperature?/li liSize of the pipe/li/ul

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Description Price Media Monitored Device Type Minimum Flow Rate Maximum Flow Rate Supply Voltage Pipe Diameter Range Connection Type Maximum Pressure Material Minimum Media Temperature Maximum Media Temperature Minimum Operating Temperature Maximum Operating Temperature Current Rating
RS Stock No. 407-574
Mfr. Part No.AWM3100V
BrandHoneywell
TWD2,947.00
Each
units
Dry Gas Amplified -200 sccm 200 cm³/min 15 V dc 0.2 in - 25psi Plastic - - -25°C +85°C -
RS Stock No. 446-8292
Mfr. Part No.173037-C
TWD3,285.00
Each
units
Liquid Turbine 1 L/min 10 L/min 5 → 24 V dc 3/8 in 3/8 BSP 200psi Nylon 12 - - -20°C +100°C -
RS Stock No. 395-6912
Mfr. Part No.155485BSPP
TWD6,946.00
Each
units
Liquid RotorFlow Electronic 15 L/min 75 L/min 24 V dc 1/2 in 1/2 BSP Female 6.9bar Polypropylene -29 °C +82°C -29°C +82°C -
RS Stock No. 907-3978
Mfr. Part No.155485
TWD7,732.00
Each
units
Liquid RotorFlow Electronic 1.5 gal/min 20 gal/min 24 V dc 1/2 in 1/2 NPT Female 6.9bar Polypropylene - +21°C -29°C +82°C 20 mA @ 24 V dc (No Load), 35 mA @ 24 V dc (Load)
RS Stock No. 407-596
Mfr. Part No.AWM3300V
BrandHoneywell
TWD3,144.00
Each
units
Dry Gas Amplified -1000 sccm 1000 cm³/min 15 V dc 0.2 in - 25psi Plastic - - -25°C +85°C -
RS Stock No. 907-3969
Mfr. Part No.155481
TWD4,561.00
Each
units
Liquid RotorFlow Electronic 1.5 gal/min 20 gal/min 4.5 → 24 V dc 1/2 in 1/2 NPT Female 6.9bar Ploypropylene - +21°C -29°C +82°C 8 mA
RS Stock No. 123-7148
Mfr. Part No.ASF1430
BrandSensirion
TWD8,966.00
Each
units
Air, Gas Flow Meter -400 sccm 400 sccm 7 → 18 V dc 5 mm RS-232, SPI 2bar PBT 0 °C +60°C 0°C +70°C 19 mA
RS Stock No. 173-2228
Mfr. Part No.ASF1430
BrandSensirion
TWD8,548.60
Each (In a Box of 10)
units
Air, Gas Flow Meter -400 sccm 400 sccm 7 → 18 V dc 5 mm RS-232, SPI 2bar PBT 0 °C +60°C 0°C +70°C 19 mA
RS Stock No. 510-0571
BrandRS PRO
TWD6,197.00
Each
units
Liquid Piston Inline 0.5 L/min 3 L/min 200 V ac 1/4 in 1/4 BSP 300bar Brass - +100°C - +120°C 1 A
RS Stock No. 446-8315
Mfr. Part No.173940-C
TWD1,839.00
Each
units
Liquid Turbine 2 L/min 30 L/min 5 → 24 V dc 3/8 in 3/8 BSP 200psi Nylon 12 - - -20°C +100°C -
RS Stock No. 446-8286
Mfr. Part No.173936-C
TWD2,261.00
Each
units
Liquid Turbine 0.5 L/min 5 L/min 5 → 24 V dc 3/8 in 3/8 BSP 200psi Nylon 12 - - -20°C +100°C -
RS Stock No. 446-8309
Mfr. Part No.173939-C
TWD1,994.00
Each
units
Liquid Turbine 1 L/min 15 L/min 5 → 24 V dc 3/8 in 3/8 BSP 200psi Nylon 12 - - -20°C +100°C -
RS Stock No. 395-6827
Mfr. Part No.155420BSPP
TWD1,902.00
Each
units
Liquid RotorFlow Electronic 2 L/min 20 L/min - 1/4 in 1/4 BSP Female 6.9bar Polypropylene -29 °C +82°C -29°C +82°C -
RS Stock No. 395-213
Mfr. Part No.AWM5104VN
BrandHoneywell
TWD4,098.00
Each
units
Dry Gas Amplified 0 sLpm 20 SLPM 15 V dc - 1/4 NPT 50psi Plastic - - 0°C +50°C -
RS Stock No. 173-2223
Mfr. Part No.LG01-2000A090
BrandSensirion
TWD4,602.10
Each (In a Tray of 25)
units
Liquid Liquid Flow Switch 250 (Isopropyl Alcohol) 50 (Water) ml/min, 250 (Isopropyl Alcohol) ml/min 5 → 12 V 9.2 mm 5 Pin PCB Header 3bar Borosilicate Glass (Tube Material), FEP (Sealing), PEEk (Fitting) - - +10°C +50°C 6.8 mA
RS Stock No. 257-133
BrandRS PRO
TWD1,080.00
Each
units
Liquid Radial Flow Turbine 1.5 L/min 30 L/min 4.5 → 16 V dc 15 mm - 20bar Acetal Copolymer - - -40°C +70°C 10 mA
RS Stock No. 123-7149
Mfr. Part No.SFM3000-200C
BrandSensirion
TWD3,299.00
Each
units
Gas Low Pressure Drop -200 slm 200 slm 5 V 22 mm 2-Wire I2C 1.3bar Epoxy, Gold, Polyurethane, PPE+PS Blend, Si, Si3n4, Siox, Stainless Steel (Annealed) -20 °C +80°C -20°C +80°C -
RS Stock No. 125-0660
Mfr. Part No.SPI-N118-1421-1-3-001
BrandSimex
TWD9,148.00
Each
units
Gas, Liquid Flow Counter - - 24 V dc - M12 - ABS, Fibreglass - - 0°C +50°C 100 mA
RS Stock No. 898-6731
Mfr. Part No.LG01-2000A090
BrandSensirion
TWD4,495.00
Each
units
Liquid Liquid Flow Switch 250 (Isopropyl Alcohol) 50 (Water) ml/min, 250 (Isopropyl Alcohol) ml/min 5 → 12 V 9.2 mm 5 Pin PCB Header 3bar Borosilicate Glass (Tube Material), FEP (Sealing), PEEk (Fitting) - - +10°C +50°C 6.8 mA
RS Stock No. 198-2931
Mfr. Part No.MR3A15BVBN
TWD2,013.00
Each
units
Gas Variable Area 1 L/min 10 L/min - 1/8 in 1/8 NPT Female 6.9bar Polycarbonate - +65°C - +65°C -