| Most of you are familiar with the coolant in your Sharplan
lasers (FC-77 or FC-770). For those of you who are not familiar with it,
this is the short
version description (or go directly to price
):
Sharplan (Lumenis) recommends Fluorinert FC-770 (or FC-77), a specialty
fluid from 3M, as coolant for their medical laser tubes. It is a
colorless, odorless
liquid
(just like water) and if you get some of it on your fingers, it is
harmless,
just wash your hands with clean water (according to 3M).
Here is the description from 3M web site:
"Heat Transfer Fluids
The wide liquid range of Fluorinert
liquid FC-77 (-110°C to 97°C) and FC-770 (-127°C to
95°C) make them ideal for use in
automated
test
equipment (ATE) and other semiconductor process equipment. Its high
dielectric strength means it will not damage electronic equipment or
semiconductor wafers, chips or packages in the event of a leak or
other
failure. In addition, FC-77 and FC-770 liquid are chemically stable,
nonflammable
and non-toxic".
You can read more about its
Physical Properties or
look at its Material Safety Data Sheet.
Both files are imported here from 3M site.
When you remove for service and re-install a Sharplan laser tube, some of
the FC-77 / FC-770
fluid gets spilled and is lost. Most of you need 'a little' to 'top off'
the reservoir, often less than 'a cup full'.
3M sells Fluorinert liquids by the Kilograms (kg).
The smallest container you can get in the U.S. is 5 Kg (11 Pounds).
However this stuff is not cheap, so you better first figure out how much
you need.
Either of Fluorinert FC-77 or FC-770 are about 2 times heavier than water
and
here is some rough calculations for converting 'kilograms' of FC-77
/FC-770 liquid
into
'Liters or Quarts':
First remember that ;
1 Liter =1000 cc ~ 1 Quart = 32 Fl Oz (to be exact, 32 Fl Oz = 946 cc)
1 Liter of water = 1 kg
These liquids are 2 times heavier than water, therefore
1 Liter of FC-77 /FC-770 ~ 2 kg ~ 4.4 lbs
Next to get a feel for 250 cc:
250 cc is about 8 Oz or 1 Cup
a can of Coke, in the US, is 355 cc (12 Oz)
(in many other parts of the world a can of Coke is 250 cc !!)
250 cc of FC-77 or FC-770 = 1/2 kg
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