PRODUCT DESCRIPTION
The ROCK flow and level switch was specifically designed for long-term reliable operation in the harshest industrial environments. Simply insert the SW100 in a line or vessel and adjust the single pot to the desired flow rate. Wetted parts are 316 stainless steel for durability and corrosion resistance. The sensors utilize reference grade platinum RTD's resulting in excellent repeatability and rangeability.
THEORY OF OPERATION
The Model SW100 operates on the thermal principal of flow measurement. Its electronics provide a constant wattage to the sensor, heating it above the temperature of the fluid. Flow of the fluid causes removal of heat from the sensor, measured as a reduction in temperature. Therefore, the measure of mass flow velocity is the sensor's temperature above the fluid temperature.
The ROCK utilizes an advanced Mass-Balanced sensor which causes each sensing element to respond equally and indifferently to changes in temperature. This feature eliminates the “hunting” problem inherent in three-element, unbalanced thermal flow switches.
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