High Accuracy Propeller Type Current Velocity Meter Easy
I. HT-BType Handheld Reader
Portable current velocity meter is an equipment used in water
conservancy for velocity flow measurement, designed for
hydro-logical stations,mining factories, environment monitoring
stations, farm irrigation, hydro-geology and so on. Portable
current velocity meter is composed of propeller velocity meter,
HTtype handheld reader and measuring bars. Full set of instruments
is in the aluminum-alloy box.When using, you can assemble it as a
body and connect the signal cable, then the velocity of every open
channel can be measured. And it can automatically display the
velocity and present the flow of sectional areas.
The instrument is lightand convenient with simple structure. It has
low power consumption, complete function, high automation degree,
stability and reliability, which complies with the national
- Screen: 2*16 liquid crystal display
- Measuring method: Positioning measuring bar or suspended cable
- Temperature range: -10℃~45℃
- Communication: RS232
- Instrument calculation: Automatic calculation
- Power supply:5VDC,it can work for 40 hours after full power
- Data storage: 99 articles
- Enclosure material: ABS
Propeller Velocity Meter
I.LS20B Type Propeller Velocity Meter
LS20B Type Propeller Velocity Meter had passed the technical
appraisal appraise of the Ministry of Water Resources of the
People’s Republic of China in 1986 and its performance had reached
international advanced level of similar products. This product was
awarded the Third Prize of Science and Technology Progress by the
Ministry of Water Resources of the People’s Republic of China in
1988 and was honored as China state level new product in 1990. In
1993, it participated in the international flow meter test which
was organized by United States Geological Survey(USGS) and its
superb performance was well praised by American experts when
compared with world famous brands such as American Price AA,
Germany Occt-3, Britain Valeport BFM002 and so on.
LS20B Type Propeller Velocity Meter is a kind of large-range
hydro-logical flow meter, which is applicable to measure high,
medium, and low flow rate of rivers, lakes, channels, reservoirs
and so on. It can also be used for measuring high velocity or
ultrahigh velocity flow rate in pressure pipe of power station and
some scientific experiment.
- Especially extensive velocity measurement range, one propeller can
satisfy different measurement requirements.
- Good sealing performance makes regular work in operational
condition of high velocity and high sediment concentration
possible.(Highest measurement velocity is 4.3m/s, highest sediment
concentration is 100kg/m³)
- The propeller adopts imported high quality engineering plastics,
which is of high impulse strength, stable geometry, and aging
resistance. The docimasy coefficient K won’t change in harsh
natural condition environment.
- Low velocity performance and internal friction characteristics.
- Flexible installation manner and reasonable directional device
structure can be suitable for current direction.
- Good structure intensity makes installation and support firm and
can stand 15m/s high flow rate impact.
- Steam-line overall and built-in type empennage counter weight
reduces water resistance. No additional deflection moment.
Magnetic type sensor
Velocity range: 0.05~15m/s
Turning propeller diameter: Ø120mm
Propeller hydraulic pitch: H=200mm
Depth range: 50m
Measuring bar: Ø20mm*3.0m (can be discharged into three sections)
Signal frequency: two signals/rotation
Working temperature: 0-40℃
Verification formula relative deviation: ƍ<�±1.5%(V≥Vk); ƍ<�±5.0%(Vk)
Suspended Sediment Concentration: ≤50kgs/m³
Continuous working time: 24 hours
Switch contact capacity: current≤50mA, voltage≤6V
Material: Direction Indicator & Tail: ABS
Others: stainless steel SS304