Level Transmitters

DPharp Level Transmitter Working Principle

DPharp digital sensor uses two single crystal silicon resonators vibrating at their natural frequencies. When pressure is applied, one of the resonators goes into tension, while the other goes into compression mode. The CPU directly counts the sensor output frequencies without any additional A/D conversion. Due to the excellent elastic properties of silicon material, the DPharp sensor exhibits greater linearity and repeatability, with no inherent hysteresis. The resonant sensor also provides a large output signal resulting in greater sensitivity and higher turndown.

Advantages of Tank Level Transmitters

•    Active temperature compensation reduces level measurement fluctuation allowing for increased vessel utilization and ultimately increased production.
•    Reducing the risk of tank overflows reduces process downtime, environmental contamination incidents, and safety compliance issues.
•    A comprehensive selection of sanitary connections and easy pushbutton display simplify installation and configuration.

Level Transmitter Types

• Capacitance Level Transmitters- stored liquid as a dielectric medium between electrodes
• Hydrostatic Level Transmitters- aka Pressure Level Transmitters; pressure of fluid
• Magnetic Level Transmitters- floating magnetic object measures movement to continuously transmit stable fill level
• Radar Fill Level Transmitters- radio wave emissions from the top of a tank
• Ultrasonic Level Transmitters- ultrasonic transducer on the top of a container
• Guided Microwave Level Transmitter- microwave pulse through a sensor
• Liquid Level Transmitters- liquid head pressure to find interfaces between different liquids