Why does the FFTK screen occasionally display "Failed" when performing the short time test right after the long time test in automatic mode for Micrologic A/P/H trip units?

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Why does the FFTK screen occasionally display "Failed" when performing the short time test right after the long time test in automatic mode for Micrologic A, P, and H trip units?

Issue:
"Failed" indication during Automatic Trip Curve Test with Full Function Test Kit (FFTK)

Product Line:
FFTK for Micrologic A/P/H trip units

Resolution:
This is normal due to the overlapping short time and long time curves. Wait at least 10 seconds after the long time test before performing the short time test.