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Fluid level probe uses microwave technology to achieve accuracy with affordability

21 March 2012

SICK's new LFP Cubic fluid level probe offers a cost-saving and accurate method of level detection and measurement in both oil- and water-based fluids. Adaptable and quick to commission, the new device is based on guided microwave technology, which means its measuring performance is not affected by the density or conductivity of the fluid, making it consistently accurate even for deposit-forming and foaming liquids.

The LFP Cubic has a stainless steel probe with a maximum length of up to 2m that can be easily changed or cut to length.  Commissioning is also made easier by the sensor’s ability to simulate levels even when no fluid is present.
 

SICK has also overcome one of the traditional drawbacks of microwave technology by reducing the deadband to just 25mm, so the LFP Cubic can be used in small vessels.
 

The sensor’s easy-to-read display gives real-time level and status information.  The analogue output is flexible, using either 4-20mA or 0-10V switchable, with two PNP outputs. Connection to fieldbus networks is straightforward via an optional module.

The unit will operate at temperatures between -20°C and +100°C, and pressures from -1 to 10bar. The sensor’s tough enclosure is IP67 rated.


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