Small Karman Vortex Flow Meter For Liquids
Kofloc FM0101/0102/0103/0105 SERIES
KOFLOC’s Karman Vortex Flow Meter FM Series provides an ideal tool for measuring and monitoring liquid flows, including cooling water and cleaning water. Since PPS resin is used for the body material, all models of the series offer superior reliability and durability.
Features
- Simple design that minimizes a dead space
- Measurements of very small flows available (up to 0.5 L/min)
- Use of PPS resin has achieved a small, lightweight and rigid
- The sensor can be used for pure water or deionized water or deionized water and chemicals (the sensor is acid-/alkali-resistant).
- These models are in the process of application for CE Marking
Standard Specifications
| Model | FM0101 | FM0102 | FM0103 | FM0105 |
| Dimension (a) | 17.08 | 17.05 | 17.05 | 32.05.00 |
| Dimension (L) | 80.06.00 | 80 | 80 | 110 |
| Connection (X) | R3/8 | R1/2 | R1/2 | 25A |
| Flowrange | 0.5-4 L/min | 2-16 L/min | 4-40 L/min | 10-150 L/min |
| Fluids | Cooling | |||
| for measurement | water, cleaning water, etc. | |||
| Measuring accuracy | Within ±3.0% F.S | |||
| Repeatability | Within ±0.5% F.S | |||
| Outputs | S Type: | |||
| 4-20mA | ||||
| P-Type: | ||||
| Pulse (Open collector) (For w/o indicator only) | ||||
| D Type: | ||||
| With indicator | ||||
| Supply voltage | 12-24VDC | |||
| Liquid temperature range | 0-70 Celcius | |||
| Proof pressure | 1MPa | |||
| Amb. temperature range | 0 – 50 Celcius | |||
| Amb. humidity range | 5-90%RH | |||
| Applicable cleanliness/ waterproofing standards | IP64 (Splashproof construction per JIS C 0920) | |||
| Material for wetted part | PPS with 30% glass mixture | PPS w/o glass mixture | ||
| Cable length | W/o indicator: 2 meters long; terminated/pretended (pre-soldered) | |||
| With indicator: 3 meters long; terminated/pretended (pre-soldered) | ||||
| Weight | W/o indicator: 85 g (Sensor unit) | 165 g (Sensor unit) | ||
| With indicator: 100 g (Sensor unit) | 205 g (Sensor unit) | |||
Principle Measurement
When a columnar object (an object that generates vortices) is placed in the flow path a of fluid, regulated Karman vortex channels, is 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.
These series models make use of the principle. When the frequency of each vortex generated is detected by an incorporated vortex detector (piezoelectric device), the signal processing circuit outputs a signal which is linearly proportional to volume flow.
Kofloc Product Mass Flow
- Mass Flow Controller/Mass Flow Meter with Indicator MODEL D8500 SERIES
- Mass Flow Controller/Mass Flow Meter with Indicator MODEL 8500 SERIES
- Low-cost Metal Sealed Mass Flow Controller/Meter MODEL 5400 SERIES
- Low-cost Mass Flow Meter with Display MODEL 3810DSII SERIES
- High-grade Mass Flow Meter MODEL3100 SERIES
- Standard Mass Flow Meter MODEL3760 SERIES
- Low-cost Mass Flow Sensor MODEL3810S SERIES
- Low-cost Digital Mass Flow Meter MODEL D3810 SERIES
- Compact Handy Mass Flow Control/Measurement Unit FLOW COMPO
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