[3dem] Vitrobot Mark IV zero blot force recalibrate frequency

Bob Grassucci rg2502 at columbia.edu
Wed Jun 8 16:39:36 PDT 2011

Hi All,
I am wondering of those of you with a Vitrobot Mark IV how often you 
find it necessary to recalibrate the zero blot force?  Our ice thickness 
of late has been less than reproducible and our last calibration was  
done a little over 2 years ago.  I am wondering if that is about what we 
can expect?  Thanks for your feedback.

Howard Hughes Medical Institute
Columbia University Medical Center
Black Building Room 2-221
650 West 168th Street
New York, NY 10032-3702
rg2502 at columbia.edu
Phone: 212-305-9520
Fax: 212-305-9500

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