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Vibrating Fork Density Meter

Short Description:

The vibration density meter with microprocessor-based electronic conversion unit aggregates signal processing, calculation and diagnostic functions. It’s designed to detect the medium density in storage tanks and pipelines for interface detection, stirred mixture and monitoring of the end point of the reactor. The vibrating fork type density meter enables direct communication with PLC/DCS system through the 4-20 mA signal and RS485 interface.


  • Signal Mode: Four wire
  • Signal Output: 4~20 mA
  • Power Source: 24V DC
  • Density Range: 0~2g/ml
  • Accuracy of Density: 0.003g/ml
  • Resolution: 0.001
  • Repeatability: 0.001
  • Explosive-Proof Grade: ExdIIBT6
  • Operation Pressure: <1 Mpa
  • Temperature of Fluids: - 10 ~ 120 ℃
  • Ambient Temperature: -40 ~ 85 ℃
  • Viscosity of Medium: <2000cP
  • Electrical Interface: M20X1.5
  • Process Interface: Flange & Clamp
  • Wetted Parts: 316 Stainless Steel
  • Warranty: 12 Months
  • Product Detail

    Product Tags

    Working Principle

    The vibration type density meter is designed on the basis of the vibration principle of components. Two teeth of the tuning fork vibrates for a piezoelectric crystal located at the root of the teeth. The frequency of vibration is measured by another piezoelectric crystal. The vibration type liquid density meter stabilizes on the natural resonance frequency. The resonance frequency changes with medium quality when the medium flows through the tuning fork.

    Product Features

    Real-time density measurement for direct process control;

    Supports density-to-concentration conversion for all medium;​

    High-precision 5-digit (4 decimal places) real-time readings;​

    Converts measured density to 4-20mA or RS485 digital signal;​

    On-site parameter setting and commissioning;​

    Customizable wetted part materials for corrosive medium;​

    Interested? Contact Sales Team

    Product Advantages

    Simple installation

    Plug and play

    Maintenance-free

    Ultra-low error margin (±0.2% full scale)

    Instant response

    IP66 Waterproof

    Automatic data logging and documentation

    More Applications? Consult Engineers Now

    Parameter Selection Table

    Vibrating Fork Density Meter Specification Code Tuning Fork Density Meter
    Density Measurement Range 1 0~1 . 5 g/cm³
    2 0~2 g/cm³
    X Others
    Process Connection D1 2" 150LB Flange
    D2 2" 300LB Flange
    D3 DN50 PN25 Flange
    D4 DN50 PN40 Flange
    K1 2" Clamp
    K2 3" Clamp
    M1 G3/4 Thread
    M2 G1 Thread
    XX Others
    Material of Wetted Parts J1 316
    J2 Titanium
    J3 Zirconium
    J4 Hastelloy-C alloy
    JX Others
    Surface Treatment A Standard Polishing
    B Electropolishing
    C PFA Coating
    Probe Length 0 Standard Length
    1 100 mm
    2 200 mm
    3 300 mm
    4 400 mm
    5 500 mm
    X Others
    Accessories F0 None
    F1 Mounting Bracket
    F2 Bypass Pipeline
    F3 Flow Cell
    F4 Flushing Port
    F5 Flange Support
    F6 Protective Cover
    FX Others

    Customization Options​

    I. Core Performance Customization​

    Measurement Accuracy and Range​
    Installation Method​
    Probe Length
    Material​ of Wetted Parts

    II. Environment and Safety Customization​

    Explosion – Proof Certification​
    Temperature and Pressure Certification
    Start ODM Now

    Installation

    inline density meter installation diagram

    Inline Density Meter Installation Diagram

    Installation for Special Working Conditions

    About Lonnmeter

    Lonnmeter Group
    Lonnmeter is an professional technology company specialized in intelligent inline instruments over 15 years, having grown into a leading manufacturer of precise inline measuring instruments.
    Core Positioning & Product Series
    Lonnmeter focuses on the monitoring of key parameters in industrial processes and supply inline instruments likedensitometers, flowmeters, level meters (or level transmitters), viscometers and pressure transmitters to optimize industrial operation. These products enable real-time and accurate measurement of parameters such as flow rate, density, concentration, viscosity and pressure, and are widely suitable for the production process needs of multiple industries including food, chemical, cosmetics, energy, petrochemical, mining and metallury.

    Vision of Lonnmeter
    In 3-5 years, Lonnmeter aspires to become the leader of China's new-generation wireless intelligent instruments!
    In 5-10 years, Lonnmeter aspires to become China's leader in intelligent instruments and replace imported instruments with its own products!
    In 10-20 years, Lonnmeter aims to make its products available to more people around the world and become a global leader in new-generation intelligent instruments!
    Become the global leader of new-generation intelligent instruments.

    over 15 years experience

    15 + Years of Experience

    Over 15 years of experience in inline instruments manufacturing.

    production area warehouse

    6600 ㎡ Production Area

    Over 6000 ㎡ factory and warehouse

    400+staff

    400 + Staff

    Over 400 experienced staff work for Lonnmeter like R&D, sales, marketing team, etc.

    1000-1500 monthly output

    1000 -1500 Units / Month

    Monthly production of inline instruments is over 1000 per month. All products undergo strict quality inspection.

    Lonnmeter -- Manufacturer of Inline Instruments for Process Control
    Lonnmeter (hereinafter referred to as "the Group") has grown into a competitive manufacturer of inline instruments over the past 15 years. All inline instruments undergone strict quality inspection and calibration before shipment to customers.
    With joint efforts of R&D department and sales team, all inline instruments for process control escalade continuously and stand up to special and complex industrial conditions, solving numerous tricky problems and improving process efficiency while reducing costs.

    Company Advantages
    As a leading intelligent industrial instrument manufacturer, Lonnmeter delivers targeted, value-driven solutions for industrial process control with the following core strengths:

    Complimentary Operating Condition Analysis
    Our engineer team provides free professional analysis of medium properties, pressure/temperature ranges, bubble content and the like, offering data-backed recommendations to optimize parameter settings and avoid equipment selection risks.

    Customized Process Control Solutions
    Our portfolio is offered based on provided operating conditions and avoid all negative factors caused inaccurate measurements like flow rate, particle size and bubble content of measured media. Keep all inline instruments working in optimal status.

    Flexible OEM&ODM Services We provide tailored OEM and ODM services dedicated to inline industrial instruments. Our OEM services cover customizable packaging, operation manuals and brand logos, while ODM solutions support flexible customization of core materials, measurement parameters, product structures and functional configurations, fully meeting all your special application needs.

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