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Sensors

GUL69 Intrinsically Safe Mining Radar Level Sensor

The GUL69 intrinsically safe mining radar level sensor is a high-frequency microwave pulse instrument. A horn antenna focuses the beam so it reflects from the material surface. The antenna transmits a narrow microwave pulse downward; the echo returns to the antenna and the electronics convert it into a level signal. Because the wave travels at the speed of light, the measurement is effectively instantaneous. It is used for level measurement and control in underground and surface coal bunkers and in silos holding liquids or solids.

Key Specifications
  • Measuring range 0~80MPa
  • Supply range 12~24VDC
  • Accuracy 0.25%F.S
  • Output signal 4~20mA/mV
  • Ambient temperature -30℃~80℃
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Technical Data

Features and applications

  • Features

    1. Millimeter-wave radar, with a shorter wavelength, reflects better from sloping solid surfaces
    2. A small antenna is easy to install. Non-contact radar means no wear and no contamination
    3. A narrow beam concentrates energy, strengthens the echo and makes it easier to avoid interfering objects
    4. A smaller dead band also works well on small tanks
    5. A high signal-to-noise ratio keeps performance up even when the surface is moving
    6. High frequency, a strong choice for solids and low-dielectric media
    7. Intrinsically safe
  • Applications

    Level measurement and control of liquids and solids in underground and surface coal bunkers and other silos.

    Compatible Machines

    • Monitoring equipment for mine coal bunkers and industrial silos
Service

Support across the full cycle, from custom design to spare parts

  • Built to the machine

    Give us the machine brand, tonnage and mounting interface. We match the dimensions so the part installs on the existing machine.

  • 100% factory test

    Parts are checked against the drawing on a CMM before assembly. The finished unit does not ship until our own bench has recorded a full performance curve.

  • Delivery and logistics

    Standard models are kept in stock. Custom parts ship to the production plan. An inspection report and packing list go out with every delivery.

  • Service and spare parts

    Technical support and wear parts are available through the warranty period, and batch test data can be traced by serial number.