Siemens Milltronics Process Instruments
Encyclopedia
Siemens Milltronics Process Instruments Inc. (SMPI) designs and manufactures level measurement tools for use in mining
Mining
Mining is the extraction of valuable minerals or other geological materials from the earth, from an ore body, vein or seam. The term also includes the removal of soil. Materials recovered by mining include base metals, precious metals, iron, uranium, coal, diamonds, limestone, oil shale, rock...

, food and chemical processing, water and wastewater
Wastewater
Wastewater is any water that has been adversely affected in quality by anthropogenic influence. It comprises liquid waste discharged by domestic residences, commercial properties, industry, and/or agriculture and can encompass a wide range of potential contaminants and concentrations...

, cement and dry bulk storage. SMPI is committed to environmental management and became ISO 14001 certified in 2008.

SMPI was founded on June 21, 1954 as Milltronics Ltd. by Dave Weston and was later acquired by Siemens
Siemens
Siemens may refer toSiemens, a German family name carried by generations of telecommunications industrialists, including:* Werner von Siemens , inventor, founder of Siemens AG...

 in 2000. Its breakthrough was in the late 1970s when it pioneered ultrasonic
Ultrasound
Ultrasound is cyclic sound pressure with a frequency greater than the upper limit of human hearing. Ultrasound is thus not separated from "normal" sound based on differences in physical properties, only the fact that humans cannot hear it. Although this limit varies from person to person, it is...

 level measurement. In 1984 Milltronics became the first manufacturer of microprocessor
Microprocessor
A microprocessor incorporates the functions of a computer's central processing unit on a single integrated circuit, or at most a few integrated circuits. It is a multipurpose, programmable device that accepts digital data as input, processes it according to instructions stored in its memory, and...

-based ultrasonics instruments with the AiRanger IV.

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