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Reliable LS20B Propeller Type Current Meter for Hydrological Field
Specifications:
1 The Rotary Diameter for Propeller: 60mm
2 The Hydraulic Thread Pitch for Propeller: H=120mm
3 Minimum Velocity: Vo≤0.06m/s(Normal)
Vo≤0.05m/s(Premium)
4 Measuring Range: 0.077m/s(Normal)
0.057m/s(Premium)
5 Operational Depth: 0.11.2m(Wading rod)
6 Accuracy:unbiased variance: m≤±1.2%(Normal)
m≤±1.0%(Premium)
V<0.2m/s:
Relative Error:σ≤±5%
Description:
Portable velocity flow meter is composed of spin paddle velocity sensor ( or
other type spin cup and screw propeller velocity apparatus), HT type velocity
flow meter and 0.4 m x 4 16 measuring bar. Full set of instruments are in the
aluminum-alloy password boxes. When using, you can assemble it as a body and
connect the signal line, then the velocity of every open channel can be measured.
And it can automatically display the velocity and preset the flow of sectional areas.
Applications:
LS20B type propeller flowmeter is a kind of large range hydrological flowmeter,
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 speed or
ultrahigh speed flow rate in pressure pipe of power station and some scientific
experiment.
Measuring principles:
This instrument is designed based on the theory of areas of open channel’s velocity.
After measuring the velocity, the flow can be get:Q=V·S(S is sectional area)
Velocity measurement
When m