Continuous level measurement is used for monitoring dynamic processes. These measurements are transmitted as an analog signal or digital value. Nowadays modern instrument manufactueres offers a comprehensive range of continuous level measurement transmitters based on a variety of technologies; ultrasonic, radar, guided wave radar, capacitance, gravimetric and hydrostatic.
Continuous level detection techniques based on radar, ultrasonic and hydrostatic principle are more popular in industries.
Radar level measurement is non-contacting and low-maintenance. As well, radar level measurement devices do not require any form of carrier medium and, the process environment (steam, pressure, dust or extreme temperatures) has practically no influence on measurement. There are a broad range of radar level measurement devices availablein the market that are highly reliable and effecient.
Ultrasonic level measurement is a highly cost-effective solution for short- and long-range measurement, even under difficult environmental conditions such as vibrations and dust. Ultrasonic level measurement is a non-contacting technology used in numerous industrial areas to monitor and control the level of liquids, slurries and solids.
The hydrostatic level measurement is a low-cost process for direct mounting or use with remote seals on tanks or containers. Gauge pressure transmitters are suitable for measurements on open containers; for closed containers, it is preferable to use the differential pressure transmitters.
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