Guided Wave Radar Level Measurement Module
  • Guided Wave Radar Level Measurement Module
  • Guided Wave Radar Level Measurement Module
  • Guided Wave Radar Level Measurement Module
  • Guided Wave Radar Level Measurement Module

    • Radar Level Measurement

    Guided Wave Radar Level Measurement Module

    Guided wave radar electronic module for liquid and solid radar level transmitter

    Guided wave radar measurement modules are used in level transmitters for liquids and solids. They work based on TDR (Time Domain Reflectometry) technology and can be combined with cable, rod, or coaxial probes to provide continuous and low-maintenance measurement. They perform reliably even in environments with condensation, foam, buildup, crystallization, or steam. Each guided wave radar electronic module is built to deliver stable and accurate readings in different industrial environments and to keep reliable performance even after long periods of use. They are also suitable for measuring the interface between two liquid layers or for applications with heavy vapor. With advanced signal processing, they stay stable even when the signal is weak or affected by interference. The nonlinear output function can convert measurement signals into practical data such as volume, weight, or flow, offering flexible use across various process applications.

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    Parameters
    • Measured Variable Level and interface level
    • Measuring Range 0.15–6 m (rod or coaxial probe) / 0.15–30 m (cable probe)
    • Minimum Dielectric Constant ≥ 1.6
    • Minimum Interface Thickness > 50 mm
    • Ambient Temperature −40 °C to +80 °C
    • Response Time ≤ 3 s
    • Measuring Accuracy Surface level ±3 mm / Interface level ±3 mm
    • Process Connection G¾ thread / Flange ≥ DN25
    • Process Pressure −100 to 4000 kPa
    • Power Supply 12–28 V DC
    • Signal Output 4–20 mA HART
    • Protection Rating IP66 / IP67
    • Explosion Protection Ex ia ⅡC T6 Ga
    • Communication Interface 4–20 mA / HART / RS485 / TTL / FDT / DTM
    • Process Temperature −40 °C to +200 °C
    • Dimensions (L × W × H) 76.4 × 76.4 × 100.4 mm
    • Weight Approx. 400 g
    Dimension Diagram
    Dimension Diagram
    Applications
    Steel Industry

    Steel Industry
    Suitable for extreme operating conditions involving heat and pressure, these modules can measure the level of molten metals and other high-temperature materials with reliable precision.

    Chemical Industry

    Chemical Industry
    Used for both liquid and solid applications under normal process conditions. They provide consistent level readings in tanks, reactors, and silos containing a wide range of chemical materials.

    Energy Industry

    Energy Industry
    Ideal for processes with high heat or pressure, where they help monitor the level of combustion materials and ensure stable operation in demanding energy systems.

    Petroleum Industry

    Petroleum Industry
    Designed to measure stirred or corrosive liquids, as well as tanks that contain vapor or foam. The signal can pass through steam and floating roofs to detect the real level of crude oil and other petroleum products.

    Food Industry

    Food Industry
    Performs well with liquids and solids at standard temperature and pressure. Handles slightly corrosive or vapor-prone materials, providing steady readings even in small tanks.

    Feed Industry

    Feed Industry
    Used to measure the level of granular materials and powders, and to control the dosage of liquid additives during feed production.

    Cement Industry

    Cement Industry (slurry and liquid processes)
    Suitable for stirred or corrosive liquids at medium temperature and pressure. Commonly used to measure cement slurry and other high-temperature materials in process tanks.

    Pharmaceutical Industry

    Pharmaceutical Industry
    Suitable for stirred, corrosive, or vapor-rich processes at medium temperature and pressure. Measures the level of liquid ingredients and powdered raw materials with high precision and stability.
      1. Guided Wave Radar Level Transmitter
      2. Guided Wave Radar Level Transmitter
        Measured Variable
        Level and interface level
        Ambient Temperature
        -40°C to 85°C / 200°C
      3. Guided wave radar level transmitters use TDR (Time Domain Reflectometry) technology for continuous, contact-based measurement of liquids and solids. They can be fitted with cable, rod, or coaxial probes to suit different process conditions and require little to no maintenance.
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    Other Radar Sensors

    Guided wave radar level transmitters can be equipped with metal rods or cables designed to withstand high temperatures and pressure, as well as corrosion-resistant probes made from materials like 316L stainless steel or Hastelloy. The measuring signal travels directly through the waveguide, so it isn’t affected by steam or corrosive gases in the environment. This design keeps the measurement stable and accurate even in demanding environments, where high temperatures, pressure, or corrosive gases would normally affect other types of sensors.

    Guided wave radar transmitters provide more stable readings because the signal travels directly through the probe that’s in contact with the medium. Foam or vapor doesn’t interfere with the measurement, so the readings stay consistent. FMCW (Frequency Modulated Continuous Wave) radars don’t make direct contact with the medium, so their signal can be affected by foam or steam. When this happens, the readings may become slightly less stable or show small variations.

    In liquids that contain gas, guided wave radar transmitters stay accurate thanks to automatic compensation that adjusts for signal interference. In thicker or highly viscous liquids, material can build up on the probe over time, which may affect the measurement accuracy. To keep the readings consistent and reliable, the probe should be cleaned regularly, and the sensor needs to be properly maintained to ensure stable performance in the long run.