1. Copyright SwissFlow B.V.
Product Presentation
Liquid Flow Sensor
Model 800
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2. Presentation Overview
Introduction
Technology
Construction
Specifications
Markets / Applications
Summary
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3. Copyright SwissFlow B.V.
Introduction
Flow Measurement
Because of increasing quality standards and higher efficiency demands in processes the market for flow sensors is growing strong.
The last decades many different technologies have been developed to measure flow. Each with specific dependencies and for a specific field of application.
There is a large gap between high-end and general purpose instrumentation, where accuracy and price per unit form the main differences.
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4. Copyright SwissFlow B.V.
Introduction
Flow Measurement
SwissFlow has pioneered in developing technology to make a combination of reliability, high accuracy, long lifetime in one instrument.
With the very competitive price level the instrument is available for every field of application.
It therefore meets all the demands of the markets.
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5. Copyright SwissFlow B.V.
Introduction
Company History
1990 Foundation Industrial Supply B.V. SwissFlow technology patented Introduction of SwissFlow 800 sensor
1996 Introduction high pressure sensor
1997 Introduction batch counter/controller
2000 Company name changed to: SwissFlow B.V.
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6. Copyright SwissFlow B.V.
Technology
Type 800 The SwissFlow sensor, type 800, is designed to measure liquid flows for a large Liquids variety of liquids.
Turbine The flow is measured by a turbine in the flow path. The rotation of the turbine is detected and converted into a pulse output.
Straight This flow measuring principle is very forward straight forward and has proven itself in a large number of applications.
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7. Copyright SwissFlow B.V.
Technology
Reliable Reliability is one of the reasons to select this principle, but this unique sensor Accuracy also provides an outstanding accuracy.
This sensor also distinguishes itself from Life time others on life time. With any mechanical principle there is a restricted life time caused by internal friction. The turbine in the sensor is designed to be free from friction.
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8. Copyright SwissFlow B.V.
Features
The SwissFlow sensor can be installed
in any angle or position
The SwissFlow sensor has an excellent
resistance to limescale
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9. Copyright SwissFlow B.V.
Construction
The patented SwissFlow technology is based on a small rotor, weighing only 0,04 gram. The material used is Vectra, a liquid crystal polymer selected because of it’s low weight and excellent chemical and thermal resistance.
Front view
Side view
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10. Copyright SwissFlow B.V.
Construction
The rotor is placed in a PVDF housing. At the inlet of the housing a swirl in the fluids pattern is generated. This controlled swirl is caused by a series of flow formers.
Front view
Flow Former
Side view
FLOW
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11. Copyright SwissFlow B.V.
Construction
The swirl is directed to the rotor blades and this will cause the rotation. Due to the low weight, the rotor will be able to float in the flow stream. The rotor will be lifted from its axis and will start to revolve proportional to the flow without friction.
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12. Integrated Electronics
Construction
The rotation is detected using an infrared beam. The rotor is interrupting the infrared signal and this will provide directly the pulse output. The infrared beam is generated by a diode and detected by a photo transistor on the integrated electronics.
Rotation Detection
Integrated Electronics
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13. Copyright SwissFlow B.V.
Construction
The electronics is placed and fixed around the rotor housing. With O-rings the elements are placed in an outer housing. This outer housing is also made from PVDF and shields any external infrared light from the electronics. The two parts of the outer housing are ultrasonically welded together.
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Specifications
Flow range 0,5..20 l/min*
Accuracy ±1,0 % of reading Reproducibility ±0,3 % of reading Liquids translucent liquids / water, chemicals, oils
Operating Pressure max. 16 bar
Temperature °C
Viscosity range up to 1000 Cst
* Based on water at 20 °C
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Specifications
Output Hz
Sensitivity ±6000 pulses / liter Signal form Square wave Amplitude See power supply
Power Supply Vdc, mA
Electrical connection 3 wire flat cable, 15 cm
Process connections 3/8” BSP male
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16. Copyright SwissFlow B.V.
Specifications
Pressure drop curve
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17. Markets / Applications
Beer & Beverages
Hot /cold Water Appliances
Distribution Measurement
Chemical Dosing Equipment
Medical Equipment
Hydraulic Systems
Automotive
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18. Copyright SwissFlow B.V.
Summary
High Accuracy and Repeatability
High Resolution; 6000 pulses per litre
Wide Measuring Range
For Liquids with 1 to 1000 Cst
Excellent Chemical Resistance
Universal Applicability
No Maintenance, free from wear
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