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Capacitive Level Transmitters

Capacitive level transmitters are devices used for level measurement of both liquid and solid materials. The technology behind these transmitters is based on the principle of capacitance.

A capacitor typically consists of two electrodes or plates separated by a non-conductive substance, or dielectric. In the case of capacitive level transmitters, the sensor often forms one plate of the capacitor, while the tank or vessel wall forms the other. The dielectric is the material being measured (e.g., a liquid or bulk solid) within the vessel.

The capacitance of this setup is directly influenced by the amount of material in the vessel. As the level of the material rises or falls, the dielectric constant of the capacitor changes, which in turn alters the capacitance. This change in capacitance is measured and converted into a level reading.

Products

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$1534.07
Dwyer Mercoid CRF2-WR01T-096 Capacitive Level Transmitter Powder Series CRF2 Capacitive Level Transmitter Powder,Bulk or Liquids. 316 Stainless Rod and Connection Fully Configurable to Varying Lengths,other Connection Sizes and Flexible Probes Available. The Series CRF2 is a level transmitter providing a two-wire 4 to 20 mA output to indicate level of liquids,powders and bulk materials. State of the art sensing technology in the CRF2,using impulse RF admittance measurement provides excellent accuracy and stability. The CRF2 senses capacitance changes resulting from the height of the material in the tank between the probe and the tank wall. In non-metallic tanks or tanks that do not have the wall parallel to the probe a ground reference must be used.
$1356.23
Dwyer Mercoid CRF2-WR01T-072 Capacitive Level Transmitter Powder Series CRF2 Capacitive Level Transmitter Powder,Bulk or Liquids. 316 Stainless Rod and Connection Fully Configurable to Varying Lengths,other Connection Sizes and Flexible Probes Available. The Series CRF2 is a level transmitter providing a two-wire 4 to 20 mA output to indicate level of liquids,powders and bulk materials. State of the art sensing technology in the CRF2,using impulse RF admittance measurement provides excellent accuracy and stability. The CRF2 senses capacitance changes resulting from the height of the material in the tank between the probe and the tank wall. In non-metallic tanks or tanks that do not have the wall parallel to the probe a ground reference must be used.