Products Description
The Karman Vortex Street Air Flow Meter is an instrument that uses airflow to bypass a conical object, resulting in two rows of vortices downstream. The frequency of the vortices is a function of the intake flow rate, and the air flow rate is determined by detecting the frequency of the vortices through a vortex street sensor. The Karman vortex flow meter has the advantages of fast response, high accuracy, and good reliability, and is widely used in the flow measurement of gases such as air, nitrogen, and oxygen.
Characteristic
- Independently developed independent software with good repeatability
- Debugging free, easy to install, high-quality and cost-effective
- High measurement accuracy, with a range ratio of 40:1
- High working temperature, medium temperature can reach 350 ℃
- Sturdy structure, high mechanical strength, and durability
- No moving parts, much longer lifespan than turbine flow meters
- The generating body has a small volume and is much more energy-efficient than orifice flow meters
- The meter body is made of stainless steel material, which has strong corrosion resistance
- The overall structure design of the instrument is reasonable, with a wide dynamic measurement range and small pressure loss;
- The instrument body can be made of stainless steel material, suitable for measuring corrosive media;
- The instrument has no movable parts and is easy to install and maintain;
Technical Parameters
| On site LCD display | pulse, 4-20mA output or 485 serial communication interface, can be connected to industrial automation systems; | Working pressure | 1.6MPa~40MPa; |
| Power supply | built-in power supply (3.6V battery), external power supply (12VDC, 24VDC); | Accuracy | 0.5 level, 1.0 level, 1.5 level. |
| Maximum temperature of measuring medium | 350 ℃; | Card type | DN10~DN300; Insertion type: DN350~DN1000; Flange type: DN10~DN300. |
| Working environment temperature | -30 ℃~+55 ℃; (During pressure compensation, it ranges from 0 ℃ to+55 ℃) |
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