Control and Instrumentation articles from February 1994

Control and Instrumentation archives from February 1994

Hazards standards to promote Euro Code. (European Code of Practice)(includes related article)
February 1, 1994... Forthcoming publication of two new hazardous area CENELEC standards - one on area classification (EN 50 145) and the other on electrical apparatus installation (EN 50 154) could unify engineering procedures across Europe. Both standards are at an...

UK misses out on growing market for green technology - expect more hot air! (environmental technology)
February 1, 1994... Weak UK environmental standards, lack of investment incentives and inadequate enforcement of pollution laws are blamed by many companies for the slow growth in environmental technology in the UK, following a recent survey. The survey, from...

Hazardous areas guidelines soon. (fiber optics in hazardous areas)
February 1, 1994... By mid 1994, guidelines and procedures should be available documenting broadly the safe use of fibre optics in hazardous areas - related to the existing and well known intrinsic safety parameters for electrical equipment. So says Peter...

Lightning hits DCS and tank gauging system at refineries. (digital control systems)(Esso European refinery)
February 1, 1994... A lightning strike to the atmospheric pipe still (APS) stack at an Esso European refinery caused damage to 45 DCS output channels - forcing 40 control valves to be driven to the unsafe position, from the 20mA output current generated. 15 field...

Taiwan analyzer systems monitor moisture in EDC. (Servomex PLC analyzer systems)(ethylene dichloride)
February 1, 1994... Three analyser systems are being supplied by Servomex to Formosa Plastics in Taiwan for monitoring trace levels of moisture in the range of 0-50ppm in ethylene dichloride (EDC). Each system contains a Model 2500 process infrared analyser with...

Calibrator/simulators.
February 1, 1994... Portable voltage/current calibrators designed to simulate process signals, such as 4-20mA current loops, or to produce precision output signals to check measuring instruments and controllers are available at prices ranging from a few hundred to...

Flow measurement of the utilities; practical advice on how to select from a range of available meters. (includes related article) (Cover Story)
February 1, 1994... In an increasingly cost-conscious industry, it is important to know how much is being spent on the utilities. As Lord Kelvin said: 'You cannot manage what you cannot measure'. His observation is as true today as it was last century. To control...

Improve traceability on your flowmeters. (Cover Story)
February 1, 1994... Performance of industrial flowmeters is improving well - and usually without any cost penalty. Smart flowmeters now give bi-directional information on flow, and today often measure multiple parameters. However, a high proportion of flowmeters...

Back to basics for oil and gas production. (Cost Reduction Initiative for the New Era; North Sea operations)
February 1, 1994... Over-designed systems to optimise the control of offshore facilities are being swept aside as part of a new 'no nonsense' strategy to reduce North Sea production costs by one third of their current level within two years. This initiative is...

Look first - before you leap. (formal control loop equipment analysis)
February 1, 1994... Advanced control can squeeze more and better out of your existing plant - it improves your plant Capability Index. You get less product variance, more product, higher grades, energy efficiency, etc. But, hold on. Management and even some...

DSP - could you use it? (digital signal processing)
February 1, 1994... Digital signal processing hardware is helping many companies to get rid of other components in systems, and pushing more of the value into software. In industry, there are now vector drives that are good enough to run induction motors without...

Power Station Instrumentation.
February 1, 1994... This book is part of the Industrial Instrumentation series, from B E Noltingk. The series covers both classical and the latest applications of new technology in major industries. Other titles in the series, published in 1993, include Flow,...