Operator Interfaces, Switches & Relays


Latest Articles

Combined switch, fuse and power socket
December 2000
Three functions compactly packed in one module. The KM from Schurter saves mounting time, space and costs. New and continuously smaller electrical and electronic components lead to continuously smaller ...

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10 A semiconductor relay is only 6,2 mm wide
November 2000
A high switching frequency coupled with the need for a long life span is often too much for the standard electromechanical relay. The advantage of using the solid-state relay, from the MIRO product line, ...

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Alarm systems and their role in abnormal situation management: Part II of IV
July 2000
In Part I, It was mentioned how many plant disturbances can be reduced both in frequency and severity, with surprisingly little additional instrument hardware. Part II continues;

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Alarm systems and their role in abnormal situation management: Part III of IV
July 2000
To minimise alarm floods on major process upsets, one has to filter or suppress alarms in accordance with plant operating mode and alarm priority

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Alarm systems and their role in abnormal situation management: Part IV of IV
July 2000
The importance of correctly ranged transmitters to cover all of the alarm settings is often overlooked, specifically on level applications

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New Switch safety operates from -40 to +200
July 2000
The introduction of new standards in the level of fire protection required for certain applications, has radically reduced the safe life expectancy of some existing switches. Switches functioning at up ...

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Alarm systems and their role in abnormal situation management: Part I of IV
June 2000
Many plant disturbances can be reduced both in frequency and severity, with surprisingly little additional instrument hardware

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Omniflex displays annunciator prowess
May 2000, Omniflex Remote Monitoring Specialists
The Omni-8c and 16c offer a choice of backlit LEDs, sidebar LEDs or incandescent lamps and for neatness and convenience, window no 16 can be replaced by a pushbutton station with the standard 'Test', ...

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New generation of low voltage control gear
April 2000, Siemens South Africa
Sirius 3R is a new generation of low-voltage control-gear from Siemens Automation & Drives, making it possible to create all load feeders solely from standard devices. This state-of-the-art modular system ...

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Compact, versatile, rotatable-head safety switches engage from eight positioners
March 2000, Turck Banner Southern Africa
Banner Engineering has announced SI-LS100 and SI-LS83 safety switches - innovative safety switches with a rotating actuator head. The switches can be wired to a safety relay module that actuates machine ...

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