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How large must the vacuum test head be?

April 26, 2017Head large Test vacuum

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How large must the vacuum test head be?

1 Answer

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The outside dimensions of the test head need to be at least 3 inches (7.6 cm) larger than the UUT (1.5 inches, 3.8 cm, all around). The most popular sized vacuum test head that CheckSum sells is the TR-3-1620, 16 x 20 inches (40.6 cm x 50.8 cm) overall. Both smaller and larger test heads are available. CheckSum lists the sizes of our test heads in overall size. Some other manufacturers list the working area. Make sure to ask the supplier if there is any question about their dimension conventions.