Trouble Shooting: Fluctuating Current
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When
X-RAY panel shows a reading of 20kV 10mA, but you hear clicking
noise from the machine and the FILAMENT CURRENT meter's needle keeps swing
back-and-forth, you have a bad filament.* Change
the filament.
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* This happens
when the filament has already been burned when the machine is down, but
you somehow didn't know (too bad) and went ahead trying to power-up the
system. Under normal circumestances, burned filament will turn on the
VC alarm and stop x-ray generation.
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