Turbine flow meter
2 month ago
Product details
Product Overview
The turbine flowmeter is a velocity flowmeter that uses an impeller placed in the fluid to sense the average flow velocity of the fluid, converts the flow velocity into the speed of the turbine, and then converts the speed into an electrical signal proportional to the flow rate, thereby realizing the measurement of the fluid flow rate, which can be used to detect instantaneous flow rate and total integrated flow rate.
The turbine flowmeter is a velocity flowmeter that uses an impeller placed in the fluid to sense the average flow velocity of the fluid, converts the flow velocity into the speed of the turbine, and then converts the speed into an electrical signal proportional to the flow rate, thereby realizing the measurement of the fluid flow rate, which can be used to detect instantaneous flow rate and total integrated flow rate.
Working Principle
The fluid flows through the sensor housing. Under the action of the fluid impulse, the impeller overcomes the friction torque and fluid resistance and begins to rotate. When the torque is balanced, the speed stabilizes. Because the blades are magnetically conductive, they are in the magnetic field of the signal detector composed of permanent magnets and coils. The rotating blades cut the magnetic lines of force, periodically changing the magnetic flux of the coil, so that electrical pulse signals are induced at both ends of the coil. After amplification and shaping, this signal forms a continuous rectangular pulse wave, which is transmitted to the display instrument. Within a certain flow range, the pulse frequency is proportional to the instantaneous flow rate of the fluid.
| Instrument diameter (mm) and connection method | 4, 6, 10, 15, 20, 25, 32, 40 are connected by thread |
| (15, 20, 25, 32, 40) 50, 65, 80, 100125, 150, 200 are connected by flange | |
| Accuracy level | ±1%F·S, ±0.5%F·S, ±0.2%F·S |
| Range ratio | 1:10; 1:15; 1:20; |
| Instrument material | 304 stainless steel, 316 (L) stainless steel |
| Measured medium temperature | -20-120°C |
| Environmental conditions | temperature -10-55℃℃ relative humidity 5%-99%RH atmospheric pressure 86-106kPa |
| Output signal | Sensor: pulse frequency signal, low level ≤0.8V high level ≥8V |
| Transmitter: two-wire 4-20mA DC current signal, three-wire pulse signal; four-wire 4-20mA DC current signal | |
| Power supply | Sensor: +12VDC, +24VDC (optional) |
| Transmitter: +24VDC | |
| On-site reality type | the meter comes with a 3.0V lithium battery or +24VDC external power supply |
| Signal transmission line | STVPV3*0.3 (three-wire system), 2*0.3 (two-wire system) |
| Transmission distance | ≤1000m |
| Signal line interface | Basic type: Hausmann connector or self-contained three-core cable; |
| Explosion-proof type: internal screw M20*1.5 | |
| Explosion-proof level | Basic type: non-explosion-proof product; |
| Explosion-proof type: Ex db ПC T6 Gb; Ex ia ПC T6 GaEx tb ⅢCT80'C Db | |
| Protection level | IP66 |
Product Classification
According to the measurement medium: there are liquid turbine flowmeters, which are used to measure low-viscosity liquids without fiber particle impurities such as water, liquefied petroleum gas, and refined oil; gas turbine flowmeters, which are used to measure gases such as air, natural gas, and steam.
According to the function: there are basic models, which only transmit the flow signal remotely, which can be divided into pulse signal or current signal (4-20mA); intelligent integrated models, using ultra-low power single-chip microcomputer technology, with on-site display, instrument coefficient correction and other functions.
Meiante Technology Co., Ltd. mainly deals in various measuring instruments, including Level Instrument, Flow Meters, Pressure Instruments, Temperature Instrument and Calibration Instrument, etc.
If you have any needs, please contact us.
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Jiangsu Meiante Technology Co., Ltd
Audited supplier
5 month
Main Product:
Pressure transmitter ,
Liquid level meter,
Temperature transmitter,
Flowmeter,
valve,
Wire and cable