Control and Instrumentation articles from January 1994

Control and Instrumentation archives from January 1994

Will BS5750 calibration do, or do you need NAMAS? (calibration of weighing scales)
January 1, 1994... The UK Weighing Federation hopes to bring to a close an argument that has been raging for over a year about just what accreditation you need for calibration, by publishing a set of guidance notes on 31 January. The confusion started when NAMAS...

British Standards - are industry's needs being met? (British Standards Institution)
January 1, 1994... British standards are seen to be on the decline for several reasons. Firstly, the Government, through the Department of Trade and Industry (DTI) is threatening to remove its 20% funding, worth |pounds~4.8m, for the British Standards...

Neural nets help condition monitoring for Nat Power. (National Power)
January 1, 1994... National Power is improving its predictive maintenance by using neural networks to analyse data. John MacIntyre, a postgraduate student from Sunderland University, is on a two-year secondment to National Power at Blyth, in Northumberland. He...

PLCs survey. (programmable logic controllers)(includes directory)
January 1, 1994... BETTER CONTROLS, SMALL SIZE, HIGHER SPEED AND POWER - PLCs PROGRESS FAST, SAYS HTE AUTOMATION'S JOHN SHENTON Nearly 20 years ago I came into the PLC industry. Those were the days of the three foot square metal box capable of driving a fairly...

Optimising control valve performance. (Valve and Actuators)
January 1, 1994... SMART TECHNOLOGY AND DIGITAL COMMUNICATIONS CAN IMPROVE DIAGNOSTICS FOR CONTROL VALVES How much money could be saved by using microprocessor technology and digital communications to improve valve maintenance? Latest developments for control...

Control valves: not just a big turn-off. (Valve and Actuators)
January 1, 1994... EUROPE AND THE ENVIRONMENT MAY LOOK LIKE THE PRIME MOVERS IN VALVE AND ACTUATOR DEVELOPMENTS, BUT ARE THEY REALLY? One of the unavoidable factors in almost any debate about process engineering these days is the environment. So, too, with valves...

Why fix it if it ain't broke? (predictive maintenance of engineering equipment) (Condition Monitoring)
January 1, 1994... THIS MIGHT SURPRISE YOU, BUT THERE ARE VERY GOOD REASONS FOR PREDICTIVE MAINTENANCE SYSTEMS Condition monitoring - why bother? It's expensive to buy and far from cheap to install the rather specialised monitoring equipment necessary. And, at...

Real Time Control Networks.
January 1, 1994... Open process control systems are becoming the norm; non-software orientated engineers are building control systems; data needs are growing dramatically; an the need for communication facilities is growing exponentially. This book provides a...