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Monitoring systems for British Aerospace
Monitoring systems for British Aerospace To monitor the high quality controlled atmosphere needed for development and production of advanced silicon chips, Neotronics has installed an Otox 90 multifunction monitoring system for hydrogen, oxygen and nitrogen at British Aerospace Dynamics' new semiconductor building at Stevenage. Atmospheric air is conditioned before being discharged into the central clean room, which is surrounded by buffer areas comprising access and peripheral corridors and offices. Conditioned air is drawn from the clean room through grilles where it is filtered again before being discharged into the enclosed working areas housing laboratory benches and to furnaces and cabinets. Some of this conditioned air is returned to the clean room and the rest exhausted to the atmosphere. Hydrogen, nitrogen and oxygen are piped to the furnaces and instrument
cabinets within the facility. During operation these gases could leak into the general atmosphere causing health and explosion hazards. Oxygen concentrations above a 21 per cent norm create a fire hazard. Indicated concentrations below this figure, caused by the escape of other gases such as nitrogen, produce lassitude and even asphixiation. If the oxygen level rises to 24 per cent, there is a distinct fire hazard, sl~ould it rise to 27 per cent a general alarm sounds and outside help is called in. If the level drops to 18 per cent, the oxygen deficiency indicated means that excessive nitrogen or other inert gas is present, so alarms initiate remedial manual action. As the lower explosion level (LEL) for hydrogen in air is only 4 per cent, the Neotronics system is set to provide a warning at 25 per cent LEL. At 50 per cent LEL a more insistent audible alarm comes into operation indicating that action must be taken. Set, reset or test controls are provided on individual monitor units for each of the hydrogen sensors.
Micro teaching Thames Polytechnic has, in cooperation with the Inner London Education Authority, reached agreement with the Council for Educational Technology to undertake work as part of the Microelectronics Education Programme. The council has awarded a grant of £60 000 to support the scheme. Initially the project centres on the provision of a course arranged by and held at the polytechnic for teachers in subject areas such as Biology, Geography and Economics. Twenty teachers, on secondment from local authorities, are attending the ten-week full time course to study the use of microcomputers for subject teaching in secondary schools. Topics being covered on the course include the programming of microcomputers, the development and evaluation of teaching material and the role of the computer in education.
CPU trials kit
Otox 90 -- a multifunction monitoring system from Neotronics
DP for Motorola Motorola's European manufacturing facility for high technology semiconductors and microprocessors, based in East Kilbride, Scotland, has installed a Model 74 Keybatch data entry and preparation system from Data 100 Systems. The system valued at around £43 000 handles
vol 5 no 3 april 1981
the general commercial functions of administration and finance. This includes warehousing and stores, general ledger, fixed assets, inventories, shipping and invoicing. According to Motorola, the reason they chose Data 100 equipment was simply because 'it performed the functions we required which other equipment simply could not accomplish'.
CPU Peripherals is offering a trials kit for computer system designers - comprising a Pentland VDU and keyboard; Centronics matrix printer; two Shugart 8-in floppy disc drives; and Shugart 8-in Winchester fixed disc drive unit and controllers at a reduced cost of £2990. The reason behind this package is to provide an incentive to people developing new computer applications. Tom Fitzpatrick, the Managing Director of CPU, sees it as fulfilling the desire of a large proportion of the computer industry for expansion in computer applications with actions rather than words. CPU guarantee that buyers will be able to buy the package items, in quantity, from UK stocks once their system becomes a production reality. A further service provided is training courses for customers' own field service engineers. (CPU Computers
Ltd, Copse Road, St Johns, Woking, Surrey GU21 ISX, UK. Tel: (04862) 23411)
131
cabinets within the facility. During operation these gases could leak into the general atmosphere causing health and explosion hazards. Oxygen concentrations above a 21 per cent norm create a fire hazard. Indicated concentrations below this figure, caused by the escape of other gases such as nitrogen, produce lassitude and even asphixiation. If the oxygen level rises to 24 per cent, there is a distinct fire hazard, sl~ould it rise to 27 per cent a general alarm sounds and outside help is called in. If the level drops to 18 per cent, the oxygen deficiency indicated means that excessive nitrogen or other inert gas is present, so alarms initiate remedial manual action. As the lower explosion level (LEL) for hydrogen in air is only 4 per cent, the Neotronics system is set to provide a warning at 25 per cent LEL. At 50 per cent LEL a more insistent audible alarm comes into operation indicating that action must be taken. Set, reset or test controls are provided on individual monitor units for each of the hydrogen sensors.
Micro teaching Thames Polytechnic has, in cooperation with the Inner London Education Authority, reached agreement with the Council for Educational Technology to undertake work as part of the Microelectronics Education Programme. The council has awarded a grant of £60 000 to support the scheme. Initially the project centres on the provision of a course arranged by and held at the polytechnic for teachers in subject areas such as Biology, Geography and Economics. Twenty teachers, on secondment from local authorities, are attending the ten-week full time course to study the use of microcomputers for subject teaching in secondary schools. Topics being covered on the course include the programming of microcomputers, the development and evaluation of teaching material and the role of the computer in education.
CPU trials kit
Otox 90 -- a multifunction monitoring system from Neotronics
DP for Motorola Motorola's European manufacturing facility for high technology semiconductors and microprocessors, based in East Kilbride, Scotland, has installed a Model 74 Keybatch data entry and preparation system from Data 100 Systems. The system valued at around £43 000 handles
vol 5 no 3 april 1981
the general commercial functions of administration and finance. This includes warehousing and stores, general ledger, fixed assets, inventories, shipping and invoicing. According to Motorola, the reason they chose Data 100 equipment was simply because 'it performed the functions we required which other equipment simply could not accomplish'.
CPU Peripherals is offering a trials kit for computer system designers - comprising a Pentland VDU and keyboard; Centronics matrix printer; two Shugart 8-in floppy disc drives; and Shugart 8-in Winchester fixed disc drive unit and controllers at a reduced cost of £2990. The reason behind this package is to provide an incentive to people developing new computer applications. Tom Fitzpatrick, the Managing Director of CPU, sees it as fulfilling the desire of a large proportion of the computer industry for expansion in computer applications with actions rather than words. CPU guarantee that buyers will be able to buy the package items, in quantity, from UK stocks once their system becomes a production reality. A further service provided is training courses for customers' own field service engineers. (CPU Computers
Ltd, Copse Road, St Johns, Woking, Surrey GU21 ISX, UK. Tel: (04862) 23411)
131