RF Liquid Level Sensors and RF Solid Level Sensors

General Application of Level Sensors :

EIP Level Sensors designed to provide accurate and reliable level information of Solids (Powder & Lumps), Liquids and Slurry applications for point level detection in storage Bins, Silos, Hoppers, Tanks, Chutes and any other vessels / tanks where material is stored, processed and discharged even at high temperature / pressure/corrosive applications.

How Eip Level Sensors Work :

EIP Point level sensors includes an electronic unit and a sensing probe, connected by a co-axial cable. The electronic unit consist of an oscillators, a detector and output relay which is controlled by the detector. The probe contains an active and shield section insulated from each other and from the vessel ground as shown.

Function of Level Sensors :

The oscillator generates low-power RF signal which is used to provide signals equal in frequency phase and amplitude to both, active section and shield section of the probe. The signal applied to the shield is held constant by use of compensating amplifier. The detector is then used to compare the fixed shield signal with active signal which varies with the dielectric constant of the material in contact with the probe. Difference in the signals compared by the detector cause the output relay to activate. The contacts of the output relay to when activated are used to indicate the presence or absence of material in the vessel at the probe level.