PREI Instrumentation

Tel: +27 11 867 5001
Fax: +27 11 867 7631
Email: [email protected]
www: www.prei.co.za
more information about PREI Instrumentation

LVDT displacment transducers
April 2000, Motion Control & Drives

The wide range of Sensotec LVDTs includes precision types, having full scale movement of 0,5 mm, long stroke types which have a full scale movement of 940 mm, submersible types and miniature types. These ...
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Self-cleaning dissolved oxygen system
April 2000, Analytical Instrumentation & Environmental Monitoring

The new membrane dissolved oxygen (D.O.) system from Great Lakes Instruments incorporates a sensor with a simple rechargeable cartridge membrane assembly, an air-blast self-cleaning system and an analyser ...
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Measuring pH at the headbox in the paper making process
March 2000, System Integration & Control Systems Design

Background The headbox is used to physically prepare the pulp stock before it is converted into paper by the paper machine. The pulp stock supplied to the headbox has a consistency of between 2 and 5% ...
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White water pH in the pulp and paper industry
March 2000, Analytical Instrumentation & Environmental Monitoring

Background During the paper making process, pulp stock is continuously sprayed onto the moving woven mesh brass or bonze cloth screen at the rear section of the headbox. This forms a pulp stock sheet ...
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Handheld gaussmeters
March 2000, Level Measurement & Control

A new series of FW Bell portable Hall-effect gaussmeters is available from PREI Instrumentation. The inexpensive basic model measures DC fields up to 25 kG with an accuracy of 4% while the top model measures ...
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Hand tachometer system
March 2000, Maintenance, Test & Measurement, Calibration

The Dynapar HT50 hand tachometer system from PREI Instrumentation is a 'must have' for every toolkit. It provides a convenient, accurate means of measuring rotary or surface speeds on all types of machinery ...
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straight-through pressure sensor
Feb 2000, News

The Microtox-OS test system from Siemens Environmental Systems is an automated on-line water quality monitoring system that uses luminescent bacteria to detect the presence of organic and inorganic pollutants, ...
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