Jump to content

  • Log in with Facebook Log in with Twitter Log in with Windows Live Log In with Google      Sign In   
  • Create Account

Submit your paper to J Biol Methods today!
Photo
- - - - -

CO2 Backup system for -80 freezers?

freezer backup emergency

  • Please log in to reply
1 reply to this topic

#1 dtae

dtae

    Enthusiast

  • Active Members
  • PipPipPipPipPip
  • 59 posts
1
Neutral

Posted 19 September 2011 - 04:05 PM

Hello,

I've been considering CO2 backup systems for a -80 freezer in case of power-outage. Has anyone used such a system? Are they worthwhile?

According to Fisher a 50 lb cylinder of CO2 should last for about six months to a year without being used and keep a freezer at about -60 for about 8 hours in an emergency. Not sure how realistic this actually is.

Thanks,
Dan

#2 bob1

bob1

    Thelymitra pulchella

  • Global Moderators
  • PipPipPipPipPipPipPipPipPipPip
  • 6,648 posts
564
Excellent

Posted 19 September 2011 - 05:00 PM

I've never had to use one for real, but we had one on a freezer in my old job. As far as I can tell, when the freezer is working correctly, they still use the CO2, so when you need to use the backup system, the CO2 may or may not be full...

A normal (full of samples) -80 freezer will keep things cold enough for quite some time by itself provided it isn't opened while the power is off.

If you wanted a backup, you would probably be better getting a generator...




Home - About - Terms of Service - Privacy - Contact Us

©1999-2013 Protocol Online, All rights reserved.