| Small Karman Vortex Flowmeters |
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| Small Karman Vortex Flow Meter - FM31 (Teflon /PFA) Series |
| Check to see which best fit your
needs. If you have any questions, please call for assistance at 1-800-790-7837
or e-mail sales@netmotion.com |
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KOFLOC's Karman Vortex Flow Meret FM Series provides an ideal tool for measuring and monitoring liquid flows,including cooling water and cleaning water.Since PPS resin is used for body material,all models of the series offer superior reliability and durability. PFA resin can be used instead of PPS,except for Model FM1015 Series,according to the customer's requirement. |
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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 ahieved a small,lightweight and rigid
- The sensor can be used for pure water or demineralized water and chemicals (the sensor is acid-/ alkali-resistant).
- These models are in the process of application for CE Marking and CAS
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Standard Specifications
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| Model |
FM0101 |
FM0102 |
FM0103 |
FM0105 |
| Dimension (a) |
17.8 |
17.8 |
17.8 |
32.5 |
| Dimension (L) |
80.6 |
80.0 |
80.0 |
110.0 |
| Connection (x) |
R3/8 |
R1/2 |
R1/2 |
28A (For pipe 35A) |
| Flow range |
0.5~4 L/min |
2~16 L/min |
4~40 L/min |
10~150 L/min |
| Fluids for measurement |
Cooling water,cleaning water,etc. |
| Measuring accuracy |
Within ±3.0% F.S |
| Pepeatability |
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°C |
| Proof pressure |
1MPa |
| Amb.temperature range |
0~50°C |
| Amb.humidity range |
5~90%RH |
Aplicable 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/ pretinned (presoldered) |
| With indicator : 3 meters long; terminated/ pretinned (presoldered) |
| Wieght |
W /o indicator : 85 grams (Sensor unit) |
165g (Sensor unit) |
| With indicator : 100 grams (Sensor unit) |
205g (Sensor unit) |
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Principle of Measurement
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| When a columnar object (object that generates vortices) is placedin the flow path of a fluid, regular channels of vortices, calledKarman vortex channels, are generated at the back of the object.Since the frequency of a vortex generated is linearly proportionalto the flow velocity within a given range, the flow amount can bemeasured by counting the number of vortices.These series models make use of this principle. When the fre-quency of each vortex generated is detected by the incorporated vortex detector (piezoelectric device), the signal processing cir-cuit outputs a signal which is linearly proportional to volume flow. |
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Dimensions
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| Click here to enlarge image |
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| Ordering |
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Click
below to request for a quotation:
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| For
further information, please contact NetMotion, Inc. at 1.800.790.7837 or 510.578.2812
or e-mail sales@netmotion.com
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| Copyright © 2003 NetMotion,
Inc. |
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Flowmeter
applications