Our two Varian UNITYplus's (500 & 600) are becoming increasingly prone
to failures of the (faculty-wide) compressed air supply, which feeds
both our anti-vibration stand and VT systems. The major danger we face
is precious (protein) samples being destroyed by RF sample heating
deregulated by the shutdown of VT regulation.
We would like to set up something separately, possibly by way of a local
back-up compressor kicked in when a sensor detects low pressure in the
line. Does anyone have any experience of such a set-up or know what
calibre of compressor might be required?
Alternatively can anyone recommend the VNMR (5.3B) temperature interlock
command 'tin' command? Does this really work - i.e. is it sensible
enough to take into account the equilibration (variation) of the sample
probe temperature during the early moments of a spin-lock-type
experiment?
Grateful for any help along these lines,
Paul
-- Dr. Paul C. Driscoll Royal Society University Research Fellow Group Leader, Joint UCL/LICR NMR Laboratory--------------------------------------------------------------------- Dr. Paul C. Driscoll | Office (answer)phone: (44)-171 380 7035 Dept. Biochem. & Mol. Biol. | Department fax: (44)-171 380 7193 University College London | driscoll@biochem.ucl.ac.uk