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Coolant Concentration Meter Inline

Short Description:

An inline coolant concentration meter is an automated instrument to measure concentration in real-time monitoring of the concentration of key components in coolants. It is widely used in industries where precise control of coolant performance is required. It utilizes acoustic signals to excite the tuning fork to vibrate, thereby measuring the concentration of the coolant (such as the concentration of emulsion in cutting fluids, or the concentration related to the freezing point/boiling point of antifreeze) in real-time. The collected data is then fed back to the control system to enable automatic adjustment or manual intervention, ensuring production efficiency, equipment lifespan, and product quality.


  • 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

    In metal cutting, grinding, stamping and other processing procedures, the concentration of coolants (such as cutting fluids, emulsions, oil - based coolants) directly affects lubrication, cooling, rust - prevention and chip removal effects, serving as a core parameter to ensure processing quality and equipment safety. The inline coolant concentration meter is equipped with a coolant concentration sensor resistant to the corrosion of various coolants. As a crucial inline process instrument, it enables real - time and accurate monitoring of coolant concentration. Its advantages of easy operation, high precision and efficient performance make it an ideal inline tool in multiple industrial applications.

    Product Features​

     Provides real-time concentration or density measurement to support direct product process control;​
     Delivers accurate and reliable 5-digit (4 decimal places) real-time readings for precise monitoring;​
     Converts measured physical parameters into a standard 4-20mA current signal for seamless system integration;​
     Displays real-time current and temperature readings for comprehensive process oversight;​
    ● Allows for direct on-site parameter setting and commissioning through simple menu entry;​
    ● Equipped with pure water calibration, fine-tuning, and temperature compensation functions to ensure measurement accuracy;​
     Offers selectable anti-corrosion materials for wetted parts to adapt to various coolant environments.
    Interested? Contact Sales Team

    Working Principle

    It utilizes an acoustic signal source to excite a metal tuning fork, causing it to vibrate at its inherent resonant frequency. This resonant frequency has a direct correlation with the density of the coolant in contact with the tuning fork during the machining process. By conducting frequency analysis of the vibrating tuning fork, the instrument can accurately measure the density of the coolant (such as cutting fluids, emulsions, or oil - based coolants) circulating in the processing system.

    Product Advantages​

    Minimal error margin of just 0.3%;
    Advanced signal processing algorithms;
    Versatile measurement capabilities;
    Fast response for timely adjustment and human intervention;
    Support integration with PLC/DCS control system;
    Explosion-proof and waterproof design;
    Intuitive interface and simple mechanical structure
    Data logging and documentation functions.

    Application

    Some industrial plants or manufacturing facilities could benefit from the inline coolant concentration meter:​
    Metal processing factories for cutting and grinding processes to monitor the concentration of emulsion in cutting fluids, ensuring stable lubrication, cooling and rust - prevention performance and reducing tool wear;​
    Automobile manufacturing plants for engine and transmission processing lines to keep the coolant concentration within the optimal range, protecting components from overheating or corrosion during processing and testing;​
    Industrial refrigeration plants for glycol cooling systems to monitor the continuous concentration of glycol solution, balancing antifreeze effect and heat transfer efficiency and preventing pipeline freezing or energy waste;​
    Chemical production plants for reactor cooling circuits to maintain the stable concentration of cooling fluids, ensuring precise temperature control during chemical reactions and improving product quality stability;​
    Shipbuilding yards for marine engine cooling systems to monitor the concentration of ethylene glycol and corrosion inhibitors in coolants, protecting engines from freezing in low - temperature navigation and reducing seawater corrosion.

    More Applications? Consult Engineers Now

    Parameter Selection Table

    Coolant Concentration Meter Specification Code Specifications
    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 Inline Coolant Concentration Meter Now

    Installation

    inline density meter installation diagram

    Inline Density Meter Installation Diagram

    Installation for Special Working Conditions

    About Lonnmeter

    SHENZHEN LONNMETER GROUP is a global intelligent instrument industry technology company. The group is headquartered in Shenzhen, China's science and technology innovation center. After more than ten years of steady development, it has formed a collection of research and development, production, sales and service. A group company of measurement, intelligent control, environmental monitoring and other series of project products.

    Service Philosophy:
    Every little thing for customers is a big thing for LONNMETER!
    Business Philosophy:
    Help customers succeed!
    Group Values:
    Customer first, pursuit of perfection, embrace change, dedicated cooperation, hard work, happy life.
    Group Mission:
    Make measurement intelligence more accurate!
    Group Vision:
    In the next 3-10 years, LONNMETER will create a new generation of smart instruments leader in China! In the next 10-20 years, let more people in the world use LONNMETER products and become the new generation leader of global smart instruments!

    LONNMETER GROUP has seven professional production bases, more than 71 professional and technical personnel, and more than 440 skilled workers. The product quality is high, and the company has won many awards. At present, the company has obtained 37 national research and development patents, and its products have passed 19 international certifications such as CE, FCC, FDA, and TUV. The technical team of SHENZHEN LONNMETER GROUP is the core strength of the company. With its strong technical strength, it has conducted in-depth research and development on new products and new technologies in the intelligent instrument industry. The team worked hard to keep up with industry trends and made major breakthroughs in new product development.

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