Datapaq measures floodlight temperatures

  • September 18, 2014
  • Case Study

September 18, 2014 -  When the sun comes out on a rainy Wimbledon match day, the roof over Centre Court can be retracted, but only after the floodlights have cooled down sufficiently. This is a safety requirement as well as an aesthetic one, as the 1,000 W floodlights are mounted directly on the roof beams and the fabric comes close to this heat source when the roof is retracted. To check how soon the lights reach the critical temperature of 100 °C and the roof retract temperature, Galliford Try, the company that built the Centre Court for the All England Club, engaged the temperature profiling expert Datapaq. On an out-of-season day, Datapaq engineer Kevin Stephens performed a measurement run with three thermocouples mounted above and close to two lights. Connected to the sensors via 10 m trailing cables, a Q18-type data logger captured the temperature profiles with a 2 s sampling rate. Using a notebook and Datapaq’s specialized Insight software, Stephens read out and analyzed the data, marking events such as “lights switched off” or “sensor moved”.

The test turned out to prove that the prescribed half-hour wait after the lights are switched off is actually necessary for safe operation. Eugene McCormick, Senior Project Manager at Galliford Try, notes, “We now have precise radiant heat temperature data. We will utilize this information when designing the roof for No.1 Court.” Datapaq supplied the full report, showing the temperature curves of all sensors over two and a half hours, during which the flood lights were on for nearly two hours and then switched off to cool down. Company Background Datapaq is the world leader in in-process temperature profiling. Founded in 1984 in Cambridge (UK) and working closely with leading manufacturers from many different industries (including photovoltaic, automobile, steel, electronics, ceramics, textile, and food), Datapaq has created industry-specific standards to analyze, synthesize, and report key information on the effectiveness of industrial heating processes in a precise and succinct manner. Datapaq has subsidiaries in Germany, the USA, and China, staffed by experienced teams of experts who provide customer care and support. Datapaq is ISO 9001 certified and has a DAkkS calibration laboratory. The company is a member of the Fluke Group.

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