Cooling fans for high power rack

Karen Ann Smith (karenann@unm.edu)
Tue, 12 Jan 1999 11:04:12 -0700

I am looking for a source for the cooling fans used in the amplifer
boxes in a Bruker ASX or MSL highpower rack. One of mine died and
Bruker has been unable to replace it (they have sent 3 replacements-
apparently the same model, but none have enough airflow to trigger
the airflow interlock).

It is a centrifugal (squirrel-cage) fan, small (less than 5 inches
square) and of course 220V. The problem is that Bruker quotes the
necessary airflow as 2.6 m3/min (which I convert to about 90 cfm).
I have been unable to find a small enough fan with sufficent
airflow. I have done both a websearch and looked in the Thomas
Register and only found a couple of companies that make such small
fans. Aside from the voltage problem, the fans listed don't have
the flow.

So, if anyone had a source for this type of fan, please let me
know. The students are getting restless!

thanks,

Karen Ann

-- 
Karen Ann Smith               karenann@unm.edu
Manager, NMR Facility         Adj. Asst. Prof.
Dept. of Chemistry            Clark Hall
University of New Mexico      Albuquerque, NM 87131
505.277.4031                  url: http://www.unm.edu/~karenann
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