Flow Sensors & Indicators

Flow 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.


Flow 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.


Types of Flow Sensors and Indicators


Paddlewheel 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.


Rotaflow 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.


Magnetic-Inductive Sensors: This type of sensor detects three process categories, volumetric flow quantity, consumed quantity and medium temperature.


Applications for Flow Sensors


Each 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:


  • Water treatment

  • Cooling systems

  • Industrial Washing Systems

  • Irrigation

Things to consider:


  • What is the fluid being measured, if not water what is its viscosity?

  • Rate measurement or totalisation?

  • Display or signal output?

  • What is the minimum and maximum flowrate, process pressure and process temperature?

  • Size of the pipe

...
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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. 181-0603
Mfr. Part No.E8PC-YS-N
BrandOmron
TWD1,018.00
Each
units
- Throttle - - - - M6 x 0.75 - SUS304 - - -20°C +80°C -
RS Stock No. 181-0598
Mfr. Part No.E8PC-YA-B14N
BrandOmron
TWD3,304.00
Each
units
- Adapter - - - - G 1/4 Male - SUS304 - - -20°C +80°C -
New
RS Stock No. 204-3918
Mfr. Part No.D6F-10A6-000
BrandOmron
TWD10,687.00
Each
units
Air Air 1 l/min 10 L/min 26.4 V dc - - - - - - - - -
RS Stock No. 181-0604
Mfr. Part No.E8PC-YL-1
BrandOmron
TWD1,048.00
Each
units
- O-Ring - - - - - - - - - -20°C +80°C -
New
RS Stock No. 204-3925
Mfr. Part No.D6F-P0010A2
BrandOmron
TWD1,729.00
Each
units
Air Air 1 l/min 1 L/min 10 V dc - - - - - - - - -
RS Stock No. 181-0613
Mfr. Part No.E8PC-100-E
BrandOmron
TWD19,702.00
Each
units
Liquid Flow Sensor 0 MPa 10 MPa 10 → 30 V dc G3/4 Male in M12 4 Pole Connector 10MPa Al2O3 ((alumina) Diaphragm Pressure Port), FKM (O-Ring), PBT (Button), PES (Display Unit), PPSU (Head), SUS304L (Chassis), SUS304L (Pressure Port) -20 °C +100°C -20°C +80°C 120 mA
RS Stock No. 181-0614
Mfr. Part No.E8PC-400-E
BrandOmron
TWD19,583.00
Each
units
Liquid Flow Sensor 0 MPa 40 MPa 10 → 30 V dc G3/4 Male in M12 4 Pole Connector 40MPa Al2O3 ((alumina) Diaphragm Pressure Port), FKM (O-Ring), PBT (Button), PES (Display Unit), PPSU (Head), SUS304L (Chassis), SUS304L (Pressure Port) -20 °C +100°C -20°C +80°C 120 mA
RS Stock No. 181-0652
Mfr. Part No.E8FC-25
BrandOmron
TWD24,689.00
Each
units
Liquid Flow Sensor 0.6 (Nominal Diameter B 3/8 in) L/min, 1 (Nominal Diameter B 1/2 in) L/min, 1.5 (Nominal Diameter B 3/4 in) L/min, 2 (Nominal Diameter B 1 in) L/min 14 (Nominal Diameter B 3/8 in) L/min, 30 (Nominal Diameter B 1/2 in) L/min, 60 (Nominal Diameter B 3/4 in) L/min, 100 (Nominal Diameter B 1 in) L/min 15 → 30 V dc 9.525 mm, 12.7 mm, 19.05 mm, 25.4 mm M12 4 Pole Connector 10MPa Chassis), FKM (O-Ring), PBT (Button), PES (Display Unit), PPSU (Head), SUS304 (Nut), SUS304L (Detecting Unit 0 °C +85°C -20°C +80°C 192 mA
RS Stock No. 181-0601
Mfr. Part No.E8PC-YA-C14
BrandOmron
TWD3,402.00
Each
units
- Adapter - - - - NPT 1/2 Male - SUS304 - - -20°C +80°C -
New
RS Stock No. 204-3922
Mfr. Part No.D6F-50A6-000
BrandOmron
TWD10,687.00
Each
units
Air Air 1 l/min 50 L/min 26.4 V dc - - - - - - - - -
RS Stock No. 181-0595
Mfr. Part No.E8PC-YA-A18
BrandOmron
TWD3,304.00
Each
units
- Adapter - - - - R 1/8 Male - SUS304 - - -20°C +80°C -
RS Stock No. 181-0608
Mfr. Part No.E8PC-010T-E
BrandOmron
TWD19,702.00
Each
units
Gas, Liquid Flow Sensor -0.1 MPa 1 MPa 10 → 30 V dc G3/4 Male in M12 4 Pole Connector 1MPa Al2O3 ((alumina) Diaphragm Pressure Port), FKM (O-Ring), PBT (Button), PES (Display Unit), PPSU (Head), SUS304L (Chassis), SUS304L (Pressure Port) -20 °C +100°C -20°C +80°C 120 mA
New
RS Stock No. 204-3924
Mfr. Part No.D6F-P0010A1
BrandOmron
TWD1,729.00
Each
units
Air Air 1 l/min 1 L/min 10 V dc - - - - - - - - -
New
RS Stock No. 204-3928
Mfr. Part No.D6F-W10A1
BrandOmron
TWD278,634.00
1 Tray of 100
Tray(s)
Air Air 1 l/min 10 L/min 26.4 V dc - - - - - - - - -
New
RS Stock No. 204-3917
Mfr. Part No.D6F-02L2-000
BrandOmron
TWD8,195.00
Each
units
Gas Gas 1 l/min 2 L/min 26.4 V dc - - - - - - - - -
RS Stock No. 181-0610
Mfr. Part No.E8PC-400T-E
BrandOmron
TWD19,702.00
Each
units
Liquid Flow Sensor 0 MPa 40 MPa 10 → 30 V dc G3/4 Male in M12 4 Pole Connector 40MPa Al2O3 ((alumina) Diaphragm Pressure Port), FKM (O-Ring), PBT (Button), PES (Display Unit), PPSU (Head), SUS304L (Chassis), SUS304L (Pressure Port) -20 °C +100°C -20°C +80°C 120 mA
RS Stock No. 181-0651
Mfr. Part No.E8FC-25T
BrandOmron
TWD24,689.00
Each
units
Liquid Flow Sensor 0.6 (Nominal Diameter B 3/8 in) L/min, 1 (Nominal Diameter B 1/2 in) L/min, 1.5 (Nominal Diameter B 3/4 in) L/min, 2 (Nominal Diameter B 1 in) L/min 14 (Nominal Diameter B 3/8 in) L/min, 30 (Nominal Diameter B 1/2 in) L/min, 60 (Nominal Diameter B 3/4 in) L/min, 100 (Nominal Diameter B 1 in) L/min 15 → 30 V dc 9.525 mm, 12.7 mm, 19.05 mm, 25.4 mm M12 4 Pole Connector 10MPa Chassis), FKM (O-Ring), PBT (Button), PES (Display Unit), PPSU (Head), SUS304 (Nut), SUS304L (Detecting Unit 0 °C +85°C -20°C +80°C 192 mA
New
RS Stock No. 204-3919
Mfr. Part No.D6F-20A6-000
BrandOmron
TWD10,687.00
Each
units
Air Air 1 l/min 20 L/min 26.4 V dc - - - - - - - - -
RS Stock No. 181-0605
Mfr. Part No.E8PC-YL-2
BrandOmron
TWD1,262.00
Each
units
- O-Ring - - - - - - - - - -20°C +80°C -
RS Stock No. 181-0607
Mfr. Part No.E8PC-YL-3
BrandOmron
TWD1,048.00
Each
units
- O-Ring - - - - G 1/4 Female - - - - -20°C +80°C -