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- All-welded 316SS wetted parts
- FM Approved explosion proof
- CE approved
- NEMA 4X wash-down proof
- Single board, “no-connectors” design
- 1000 psig (69 barg)
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- No moving parts
- DPDT 5 amp relay
- Single pot adjustment
- Works on gases, liquids and slurries
- Clean and steam in place ± 1% of reading repeatability
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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 refer-ence 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 tem-perature 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 sens-ing 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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