Control and Instrumentation articles from April 1993

Control and Instrumentation archives from April 1993

Introducing the recession killer. (effect of new technology on manufacturing industries) (Editorial)
April 1, 1993... "Green shoots? Well it's spring, but can you see them? Order books have recovered to their best since summer 1990. So says the Confederation of British Industry in its latest monthly survey. Manufacturing output is set to rise, and the CBI says...

Wessex Water applies high level programming to PLCs. (Wessex Water PLC)
April 1, 1993... While upgrading the controls on one of Wessex Water's sewage works, systems house Charter Tech experienced all the pro's and con's of using computer aided software engineering (CASE) tools. The site treats 165Mlitres of sewage from Bristol...

Chart recorders.
April 1, 1993... WILL THE CHART RECORDER EVER DIE? ROGER LOCKHART FROM DATAQ EXPLAINS WHY THEY WILL NOT REPLACE PCs YET Who's still buying chart recorders? Better still why are they buying them? These questions can be haunting to a marketeer of PC-based data...

Cavitation, flashing and outgassing. (control valves)
April 1, 1993... SIZING AND SELECTING VALVES FOR MULTI-PHASE HYDROCARBONS NEEDS SPECIALIST EXPERIENCE Sizing control valves and selecting the best materials of construction for liquid service can often be handled for straightforward applications by using a...

Valves with brains.
April 1, 1993... INTELLIGENTT VALVES PROMISE BIG SAVINGS, AND GIVE YOU A FEEL FOR LIFE WITH FIELDBUS Using intelligent actuators can save you about half the cost of a complete control loop. And, if you have a lot of valves, you can drastically reduce your...

Engineering goes computer-aided.
April 1, 1993... BEYOND MONITORING AND CONTROL, COMPUTER TECHNOLOGY TODAY HAS A MUCH WIDER ROLE Computer Aided Plant Engineering (CAPE) is something of an amorphous term - meaning different things to different engineers, depending upon their responsibilities...

Can you design safety systems or not?
April 1, 1993... PITFALLS TO AVOID ARE NUMEROUS - AND FAILURE TO DISCOVER THEM CAN BE DISASTROUS Designing emergency shutdown, interlock and burner management safety control systems involves many choices. The primary concern in the minds of many people is...