 
Thu, 12 Oct 2006 12:41:34 +0100
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We recently moved our Ś89 vintage PRISM and cannot get high vacuum back
again. The analyser has pumped out normally to 1e-3 mbar but the diff pumps
just will not trip back on. Everything seems Śnormalą ie all power supplies
on, fuse by the rocker switch is OK etc etc. Has anyone experienced this, or
know of potential problem areas (sticking relays, faulty switches etc)
before I am forced to dust off the schematics?
Thanks for any help!
dave
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Dave Mattey BA PhD FRAS
Professor of Stable Isotope Geochemistry,
Department of Geology,
Royal Holloway College,
University of London,
Egham Hill,
Egham,
Surrey,
TW20 0EX
Telephone
01784 443587 (direct line)
443582 (dept secretary)
07780 697564 (mobile)
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