WP 5751 FRS 4424

Jim logged the problem, 25713 on Thursday.  Today I swapped in another board (probe 13440) but the performance was much worse.  Microsense did not tell me that would be the case so I don't know what that says about this 13440 unit.  Maybe it says a lot or perhaps nothing.

After seeing that this replacement was not going to cut it, I swapped the original back in.  Funny now, the performance is much better but still not a good as the other sensors--see the attached.  In this uncalibrated spectra, the cluster of fine traces at the bottom are all the other stage2 CPSs.  The black trace is H3 before the swap.  The high green trace is H3 with the alternate board (not good) and the yellow is H3 with its original board back in place.

So is it the power cycle, maybe a contact scraping/cleanup, that has recovered the performance?  Maybe the board should be removed and plugged back in a number of time.