Resolving the 'H# Abort: Count Rate Too Low' Error on Your LS 6500
Service AI
Even though the H# value is counted by the Cs137 source drive, the cause for this failure could be because of a problem with the front end of the electronics, which consists of the PMTs, pre-amp housing assembly, or the high voltage power supply. Of course the problem could be with the Cs137 source drive itself as well.
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