Advanced Instruments 4250, User Manual

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Advanced
®
Cryoscope Model 4250 User’s Guide
3. A heat transfer fluid filter should already be mounted on the smaller
of the two plastic tubes. If replacement is necessary, force the tubular
end of the heat transfer fluid filter at least ¼" or 6 mm into the free
end of the smaller of the two tubes.
CAUTION The heat transfer liquid contains hazardous chemicals.
Consult the material safety data sheet (MSDS) and use
appropriate personal protective equipment.
4. Open a bottle of heat transfer fluid.
5. Insert the plastic tube with the heat transfer fluid filter into the bottle
of heat transfer fluid so as to locate the filter at the bottom of the
bottle.
6. Insert the free end of the larger of the two plastic tubes into the neck
of the heat transfer fluid container to return the heat transfer fluid to
the container for recirculation.
7. Stand the container of heat transfer fluid in the plastic tray in the
heat transfer fluid compartment, making sure the filter remains low
in the heat transfer fluid. Press the bottle into the retainer clip.
8. Close the compartment door.
NOTE When the heat transfer fluid level reaches the REPLACE line
on the bottle label, discard remaining solution and replace with
a new bottle of heat transfer fluid (Part No. 3DA811).
Continued use when fluid is below this level will change the
thermodynamics of the test.
NOTE It is not recommended to top off the existing bottle of heat
transfer fluid, due to moisture and growth that exist. Always
discard the old bottle and fluid and replace with a new bottle.
NOTE Should it become necessary to move the instrument to another
location after the heat transfer fluid has been installed, take
appropriate precautions to prevent fluid spillage.
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