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Reliable LS20B Propeller Type Current Meter for Hydrological Field

Reliable LS20B Propeller Type Current Meter for Hydrological Field

    • Reliable LS20B Propeller Type Current Meter for Hydrological Field
    • Reliable LS20B Propeller Type Current Meter for Hydrological Field
  • Reliable LS20B Propeller Type Current Meter for Hydrological Field

    Product Details:

    Place of Origin: China
    Brand Name: Metlan
    Certification: CE/CMC/ISO9001
    Model Number: LS20B

    Payment & Shipping Terms:

    Minimum Order Quantity: 1pc
    Price: negotiation
    Packaging Details: Packed in aluminum box firstly,and then reinforced with wooden case for outer packing
    Delivery Time: 5 working days after received your payment
    Payment Terms: T/T or western Union
    Supply Ability: 100pcs per month
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    Detailed Product Description
    Product Name: Propeller Type Current Meter Application: Hydrological Field Etc.
    Propeller Tactical Diameter: Φ120mm Propeller Water Power Pitch: 200mm
    Output Signal Frequency: 2 Signal/rotate Ambient Water Temperature.: 0-35℃
    Packing: Aluminium Alloy Box

    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

    Reliable LS20B Propeller Type Current Meter for Hydrological Field

     

    Contact Details
    Nanjing Metlan Measurement & Control Instrument Co., Ltd

    Contact Person: Mandy Zhang

    Tel: +8613451802300

    Send your inquiry directly to us (0 / 3000)

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