Hello
Everyone,
Of course, just before I’m about to
run a 1 shot meteorite sample, our HV just went down. Here is the play by
play:
1)
Had been running EA, so before I
opened the GC-C-III SGE valve, I turned off the filament HV button the front
panel so as not to flood the source with gas and trip the
HV.
2)
Came back around to the front side
of the instrument panel to turn the source HV back on. Depressed button,
only to see that neither the source HV light or the emission light came on, but
the red LED on the button did. In addition, the source HV light on the
pump LED panel was also off. Source vacuum indicates 3.3 X 10^-5 – clearly
not the vacuum of 10^-6/10^-7 I typically operate
at.
3)
If I try power cycling the “pump”
switch on the front of the instrument, the pump source HV LED will flash twice,
then stay out.
So my guess is that I have a bad
source turbo and the source HV won’t kick on because of this. If anyone
out there has other ideas that don’t involve weeks of downtime and several (tens
of) thousands of dollars to repair, PLEASE shoot me an email! Your help is
greatly appreciated (as always) and a lonely chunk of meteorite will be very
grateful as well.
Cheers,
Mike
Kubo
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Michael D.
Kubo
M/S
239-4
Bldg. N239, Room
327
(650)
604-6110