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INSTALLATION & OPERATION MANUAL
SONAC/120 LIQUID LEVEL SWITCH
DECEMBER 2008 REV 1.0
was started in 1976 to offer new and innovative
electronic designs in tank gauging. L&J’s new products always used the
latest electronics and therefore the company quickly grew.
Ten years later L&J bought GPE. Along with GPE, L&J bought
, a GPE afliate that manufactures ttings and valves for
the same type of tanks that used the gauging equipment.
A short time later, all 3 companies were reorganized under one corporate
entity called . In 1994, a brand new, state-of-the-art
manufacturing facility was built to bring all of the L&J Technologies
manufacturing efforts under one roof.
In 1996, L&J bought , a manufacturer of liquid level controls
and Hi/Low level switches for the boiler, process, and liquid storage
industries.
On February 28, 2000, L&J purchased Durlam Associates, (now Durlam
Inc.). is located in Houston, Texas and is the leading
manufacturer of berglass reinforced plastic (FRP) Derakane 470
conservation vents and ttings.
On March 31, 2000, L&J purchased Delavan Process Instrumentation
in Naugatuck, CT. is a well-established name in
ultrasonic, capacitance and microwave point level and continuous level
measurement for liquids and solids. Delavan was relocated to L&J
Technologies corporate headquarters in Hillside, Illinois.
Today, the L&J family of companies is the world’s largest manufacturer
specializing in the monitoring, management, and control of bulk liquids.
L&J provides quality products for the Petroleum, Petrochemical,
Chemical, Food, Pharmaceutical, Pipeline, Steel, Water Treatment and
Biogas ( ) Industries.
Visit L&J Technologies on the internet at www.ljtechnologies.com
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