Reliable LS20B Propeller Type Current Meter for Hydrological Field

Reliable LS20B Propeller Type Current Meter for Hydrological Field

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Min.Order:1 Piece

Supply Ability:
0 Piece / Pieces per Month
Payment Terms:
T/T L/C D/P D/A
Delivery Detail:
7 days

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Brand Name:
Metlan
Place of Origin:
China
Model Number:
LS20B

Nanjing Metlan Measurement & Control Instrument Co., Ltd

Business Type: Trading Company
Main Products: Electromagnetic Flow Meter ,Vortex Flow Meter ,Turbine Flow Meter

Product Details

Delivery Time:5 working days after received your payment
Certification:CE/CMC/ISO9001

Reliable LS20B Propeller Type Current Meter for Hydrological Field

Specifications:

1 The Rotary Diameter for Propeller: Ф60mm

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: 0.07~7m/s(Normal)

                                 0.05~7m/s(Premium)

5 Operational Depth: 0.1~1.2m(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 Ф 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 measuring velocity, the spin paddle type rotor flow meter will be pushed by 

waterpower. The built-in signal apparatus produces RPM signal. The formula 

below can calculate velocity:        

(K/b)N

                 V=—————-  +  C/a(m/s)

                         T

V: the average velocity (m/s)

B/K:the waterpower pitch of blades 

a/C: velocity constant

T: lasting time(the unit is s)

N: the number of signals in T time 

S: sectional area

Q: flow

K/b, C/a are constants

When measuring, you can setT and then measure N, so the velocity and flow can 

be automatically calculated.

Competitive Advantage:

1)Especially extensive speed measurement range,one propeller can satisfy 

different measurement requirements.

2)The propeller adopts imported high quality engineering plastics

3)Low-speed performance—internal friction characteristic.

4)Flexible installment manner and reasonable directional device structure can 

adapt direction of current.

5)Fine structure intensity makes installment and support firm and can stand 

15m/s high flow rate impact.

6)Streamline overall and built-in type empennage counter weight reduces water 

resistance.No additional deflection moment.

Online operation of computer (available if mentioned in your order)

Connect current meter with communication interface by exclusive communication cable,

open computer to enter WINDOWS-Program-Accessories-Communication-Hyperterminal,

set Baud rate to 2400,communication bit to 8,pause bit to 1,parity check to none,flow control

to software, choose correct communication interface, connect signal wire of meter, input “v”, it

will send out 99 storage data to computer screen automatically.

K=7800 C=0.050 T=0106.5 N=0015 V=0.160

K=7800 C=0.050 T=0108.4 N=0016 V=0.165

Package

Contact Supplier

Miss. Angel sale Manager Chat Now
Telephone
86-025-53266120
Mobile
86-13770530824
Fax
86-025-52899138
Skype
service@metlan.com.c
Address
No.12, Rungu Road, Guli Industrial Zone, Jiangning District Xianyang,Shaanxi

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