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Oil Density Meter Inline

Short Description:

The inline oil density meter is an instrument for measuring liquid density in real time. It’s applicable to continuous density measurement of oil media like crude oil, finished oil, edible oil, lubricating oil, aviation kerosene, etc. Its high accuracy ±0.001 g/cm³ and temperature compensation -30~120℃ determines its high performance in demanding environments of industries like petrochemical refining/blending, edible oil refining/filling, industrial equipment lubrication, and airport fueling. Standard 4-20mA outputs enable seamless integration with PLC/DCS systems for automated adjustments.

Note: The inline density meter is available for concentration measurement of binary liquids ONLY.


  • Signal Mode: Four wire
  • Signal Output: 4~20 mA
  • Power Source: 24V DC
  • Concentration Measurement Range: 0-99%
  • 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 tuning fork of the density meter for oil is excited by acoustic waves, leaving it to vibrate at its natural resonant frequency. Its vibration frequency is direct correlated with the density of liquids surrounding it. When the medium flows through the fork, the change of resonance frequency is caused by the change of medium quality.

    Product Features

    ● Wide concentration measurement range 0-99% and high accuracy ±0.2%;

      Ideal for harsh conditions for temperature compensation -30 ~120 °C;

    ● Available anti-corrosion materials for wetted parts (Stainless steel, titanium alloy, Hastelloy alloy, PTFE, ceramic;

    ● Robust construction to withstand harsh conditions like high temperatures, pressures and corrosive environments;

    ● Fast response enables real-time density measurements for process control and quality assurance.

    Interested? Contact Sales Team

    Product Advantages

    ● Simple installation;

    ● Plug and play;

    ● Maintenance-free for no moving parts;

    Applications

    Some production lines or industrial plants could benefit from the inline oil density sensor:​

     Petroleum refineries for oil density measurement in crude oil fractionation towers and finished gasoline/diesel conveying pipelines to ensure accurate distillation fraction control and meet national petroleum product density standards;
     Automobile manufacturing plants for oil density monitoring in engine oil circulation systems and gearbox oil storage tanks to detect early oil degradation (e.g., oxidation, impurity mixing) and protect key transmission components;​​
     Marine transportation industry for oil density detection in ship main engine fuel tanks and lubricating oil supply lines to guarantee fuel combustion efficiency and avoid equipment wear caused by abnormal oil density;​​
     Edible oil processing enterprises for oil density measurement in soybean oil refining tanks and finished oil filling stations to ensure oil purity (preventing adulteration) and comply with food safety density limits for edible oils;​​
     Lubricating oil production factories for oil density monitoring in lubricant blending tanks and high-temperature grease processing lines to control product viscosity matching and meet equipment-specific lubrication performance requirements;​​
     Aerospace maintenance centers for oil density detection in aircraft fuel refueling pipelines and engine slide oil circulation systems to ensure fuel density adapts to high-altitude low-temperature conditions and guarantee engine stable operation.
    More Applications? Consult Engineers Now

    Parameter Selection Table

    Inline Oil 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​
     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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