Confocal Microscopy List

Re: Vacuum pump advice?

Posted by Guy Cox on
URL: http://confocal-microscopy-list.275.s1.nabble.com/Vacuum-pump-advice-tp592434p592435.html

Search the CONFOCAL archive at http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal

Craig,

The first thing you should be looking at is a big buffer

tank to even out the fluctuations. Having a lower Torr than you

need will do very little for you - the difference in the total mass

of air in a chamber at 0.1T vs 1T is tiny. The displacement is

the key thing - it must be able to handle everyone wanting it at

once.

Guy

Optical Imaging Techniques in Cell Biology
by Guy Cox CRC Press / Taylor & Francis

http://www.guycox.com/optical.htm
______________________________________________
Associate Professor Guy Cox, MA, DPhil(Oxon)
Electron Microscope Unit, Madsen Building F09,
University of Sydney, NSW 2006
______________________________________________
Phone +61 2 9351 3176 Fax +61 2 9351 7682
Mobile 0413 281 861
______________________________________________
http://www.guycox.net

From: Confocal Microscopy List on behalf of Craig Brideau
Sent: Tue 08/03/04 8:38 AM
To: [hidden email]
Subject: Vacuum pump advice?

Search the CONFOCAL archive at http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal We are setting up a new lab section and we need to select a vacuum pump to hook up to our vacuum plumbing. We have a large manifold system that ties multiple vacuum taps together into one central location. We plan on using a single pump to provide for the whole lab. My concern is in vacuum stability as users open and close the tap, as well as capacity. Should I be looking for a pump with a strong vacuum draw (low Torr number), or large displacement (liters/minute)?

Thanks,

Craig