Ultrasonic level transmitter measures liquids and slurries
Siemens
The Sitrans LU150 (photo) is a non-contacting ultrasonic transmitter with a range of 16 ft. The two-wire, 4–20-mA loop-powered transmitter incorporates the sensor and the electronics in a single compact unit. It can be used for continuous level measurement of liquids, slurries and bulk materials in both open and closed vessels. It is designed primarily for use in the water, wastewater and energy-management industries. The Sitrans LU150 has a rugged, fully encapsulated polyvinylidene fluoride (PVDF) transmitter that is resistant to corrosion, chemicals and extreme shock. With only two cables to be connected, the Sitrans LU150 can be installed quickly and easily. The company’s Sonic Intelligence signal-processing software delivers reliable measurement readings by differentiating between the true material level and echoes, says the manufacturer. It has an accuracy of±0.025%, with a measuring range of 0.25–5 m, and an operating range of –30 to 60°C. It is suitable for use in chemical storage vessels, filter beds, mud pits, liquid storage vessels and food applications. — Siemens, Atlanta, Ga.