Leica EM CPD300, Руководство по эксплуатации

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Page 12 Operating Manual EM CPD300 12/18
5. Description and Specification
Introduction
Biological specimens intended for investigation in a scanning electron microscope
must be dried before being introduced into the microscope to allow the specimen to
be imaged. If specimens with water content are dried, tangential forces, caused by
surface tension of the water, destroys the structures of the specimen as mentioned in
the previous chapter.
Critical point drying with the EM CPD300 is the optimal method to prevent the
damaging effects of the above-mentioned forces by bringing the liquid to the gas
phase without boundary crossing.
5.1 Technical specifications
Dimensions:
Weight:
Empty weight 31 kg
Sample chamber:
Chamber dimension Ø 60 mm x 62 mm
Volume 185 ml in empty chamber
Pressure:
Safety bursting membrane 105 bar at 20 °C (+/-10%)
Software controlled cut off 80 bar
Max. operating pressure 79 bar
(Software controlled)
Temperature:
Heating range adjustable 33 °C to 43 °C
Software controlled cut off >45 °C
Heating time Slow 1 °C/min.
Heating time Medium 2 °C/min.
Heating time Fast 3 °C/min.