BS 5558-2:1989 - Controllers with analogue signals for use in industrial-process control systems - Guidance for inspection and routine testing
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This part of BS 5558 provides guidance on the inspection and routine testing of controllers that operate with analogue signals and are used in industrial-process control systems. It specifies recommended procedures and methods to ensure that such controllers comply with performance requirements and maintain reliability during operation. The standard covers visual inspection, functional tests, calibration checks, and other routine testing necessary to verify correct operation and detect faults before use in industrial applications.