A common source used for calibration of the spark test chamber for intrinsic
safety testing is a 95 mH air core inductor connected to a 24vDC source with
current limiting that is adjusted based on the gas group you are using.
Kevin Robinson
On Tue, Aug 16, 2016 at 7:57 PM -0400, "Doug
Is typically two different things - the ASTM E2019/EN13821 MIE stuff or the Mil
stuff based on an LEL mix.
Has been a very long while since these tests were witnessed, but do remember
that the MIE tests can be rather sensitive to the shape of the VI curve per
time, so L needs good control.
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