PiloTREK WP–200 – Integrated Radar Level Transmitter

The new PiloTREK WP–200 non-contact radar level transmitters use the most advanced industrial measurement technology, the 80 GHz FMCW radar. The most fundamental advantage of 80 GHz radars compared to lower frequencies (5…12 GHz and 25 GHz) is the smaller antenna size, better focusability, and narrow beam angle. It uses the latest technology for measuring liquids, masses, emulsions, and other chemicals widely used in, for example, the water industry, food industry, energy industry, pharmaceutical industry, and chemical industry, which provides measurement results with millimeter accuracy. The radar level transmitter is also excellent for measuring substances prone to vapor formation and liquids with gas blanket or large-particle bulk solids. In addition to the level, volume, and weight measurement functions, this product family also inherits the open channel flow measurement functions and the threshold functions to eliminate false and interfering echoes introduced in connection with ultrasonic devices. Since no medium is required for millimeter waves to propagate, it can also be used in a vacuum.

Operating Principal

The reflection of the millimeter-waves is highly dependent on the dielectric constant of the medium. Therefore, the measured medium’s dielectric constant (er) must be over 1.9 for millimeter-wave level measurement. The measurement principle of a level transmitter with a millimeter-waves signal is based on measuring the reflection’s time of flight. The speed of propagation of millimeter-waves signals in the air, gases, and vacuum is almost constant regardless of temperature and medium pressure, so the measured distance does not depend on the physical parameters of the intermediate medium.

The PiloTREK W–200 non contact level transmitter is a continuous wave frequency modulated radar (FMCW) operating at 80 GHz (W-band). The most obvious advantages of 80 GHz radars over lower frequency (5…12 & 25 GHz) radars are smaller antenna size, better focus, and smaller beam angle. A portion of the millimeter-wave continuous wave energy radiated by the level transmitter antenna is reflected from the measured surface, depending on the material to be measured. The distance of the reflecting surface is calculated with high accuracy by the electronics from the frequency shift of the reflected signal and converted into a distance, level, or volume signal by the electronics.

Applications

• For measuring the level of liquids, emulsions, and other media chemicals up to 30 m
• For large-particle bulk solids
• Storage tanks, chemical tanks, open pits, sumps, wells
• Measurement through a plastic tank roof
• For material prone to vapor formation
• For measuring liquids with a gas cushion
• It can also be used in a vacuum
• Open-channel flow measurement
• Water and Wastewater Industry
• Energy Industry / Plant utilities
• Food & Beverage
• Pharmaceutical Industry
• Chemical Industry
• Marine applications
• Agriculture
• Construction materials
• Heavy Industry
• Packaging Industry

Want more information on the benefits of PiloTREK WP200 for radar level measurement? Check out our blog article in the link below.

Revolutionising Level Monitoring: The Power of Radar Level Transmitters