SAIMC


SAIMC: Johannesburg branch

July 2018 SAIMC

At the last technology evening Gavin van Rooy from Comtest hosted and presented on the topic entitled ‘Temperature Measurement and Calibration what every Instrument Technician should know.’

Ann de Beer presents Gavin van Rooy with the SAIMC presenter’s certificate.
Ann de Beer presents Gavin van Rooy with the SAIMC presenter’s certificate.

Temperature is the most commonly measured physical parameter in the world. In industrial automation the commonly used methods of measuring temperature are thermocouples, platinum resistance thermometers, resistance temperature detector (RTD), pyrometer and infrared. It is important to note temperature measuring instruments’ specifications with regards to accuracy and calibration methods. Inaccuracies can lead to costs and losses such as production downtime, high defect rate and safety hazards. Two important components of accuracy are repeatability and resolution.

NMISA is South Africa’s National Metrology Institute responsible for South Africa’s national standards to ensure that measurement instruments and other measurement used for economic, safety and process industry are transparent and correct. To ensure that temperature measurements are consistent around the world each country has adopted the ITS-90, a temperature scale defined by the BIPM (International Bureau of Weights and Measures). These measurements are part of a chain of comparison to measurement standards of a higher accuracy.

The SAIMC would like to thank Gavin van Rooy for his informative and well received presentation.



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