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Kofloc FM31 Vortex Flow Meter for Liquids

Kofloc FM31 (TEFLON/PFA) Vortex Flow Meter for Liquids Karman employs the following principle for the measurement of flows: When a columnar object (an object that generates vortices) is placed in the flow path of a fluid, regular channels of vortices, called Karman vortex channels, are generated at the back of the object

Kofloc FM31 Vortex Flow Meter for Liquids

Kofloc FM31 Vortex Flow Meter for Liquids the following principle for measurement of flows: When a columnar object (an object that generates vortices) is placed in the flow path of a fluid, regular channels of vortices, called Kar- man vortex channels, are generated at the back of the object. Since the frequency of a vortex generated is linearly proportional to the flow velocity within a given range, the flow amount can be measured by counting the number of vortices.

When the frequency of each vortex generated is detected by the incorporated vortex detector (piezoelectric device), the signal processing circuit outputs a signal that is linearly proportional to volume flow. KOFLOC strives for thorough quality control at domestic factories. In recent years, we have also been focusing on product development for liquid measurement and control equipment, and we will deliver products that can be trusted as “Fluid Kofloc” to the world.

Features

  • Because of no moving part, the meter has superior reliability and durability and no error in mounting position is produced.
  • Simple construction (its flow path of fluid contains a columnar object and a vortex detector only) ensures low pressure loss and low liquid leak. In addition, the detector does not get into contact with the fluid running through the path, therefore, it is ideal for process monitoring of various liquids.
  • Two types of particle-free body materials (PPS and PFA) are available for choice according to your needs.
  • Global specifications (Certification for CE Marking already acquired)
  • Since Teflon is the material for the entire wetted part and no O-ring is in use, the Model31 Series Karman Vortex Flow Meter is optimum for monitoring liquid flows in the manufacturing process of semiconductors.

Applications

  • FA instruments
  • Semiconductor manufacturing
  • LCD
  • Housing material production
  • Medicine production
  • Chemical industry
  • Biomedical applications
  • Environment systems
  • Food processing
  • Agricultural/Botanical applications

Specifications

Item FM3101 FM3102 FM3103 FM3104
Flow range (L/min) 0.4-4 2-20 5-50 10-100
Connection 3/8”
Pipe end
1/2”
Pipe end
3/4”
Pipe end
1”
Pipe end
Fluids for measurement Ultrapure water, chemicals, and other liquids
Measuring accuracy ±3.0%+ 1 digit
Repeatability Within ±0.5% F.S.
Liquid temperature range 0-90℃ (No bedewing, no boiling)
Amb. temperature range 0-50℃
Outputs With indicator LED display in 3 digits
Current output: 4-20 mA (linear)
Alarm output: Open collector (2 LEDs; 80 mA, 30 VDC max.)
W/o indicator Current output: 4-20 mA (linear)
Pulse output: Open collector (10 mA, 30 VDC max.)
Supply voltage 12-24VDC
Materials Body All Teflon® (PFA), without O-rings
Cover Polybutylene terephthalate (PBT) resin
Cable 2 meters long; Conductor: Tinned bare annealed copper wire;
Sheath: Heat-/cold-resistant polyvinyl chloride (POC)

Downloads

Datasheet: Kofloc FM31 (TEFLON, PFA) Vortex Flow Meter for Liquids

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