The EFT-3002 has been specifically designed for the deep freezing of embryos in 1/4 or 1/2 cc straws. Using advanced electronic technologies and liquid nitrogen cryology, the EFT-3002 provides a safe and reliable method for freezing mammalian embryos to a low temperature suitable for plunging into liquid nitrogen for long term storage. Relying on the freezing capability of liquid nitrogen, the EFT-3002 can freeze samples without the use of fluorocarbon-compressor based refrigeration equipment.
The use of alcohol in the freezing chamber provides a more stable and uniform conduit for the temperature transfer than a air filled chamber, but the unit will operate without alcohol if desired.
The cooling rate of the EFT-3002 can be set from -0.1 to -0.7 degree C per minute.
The start temperature is factory set at -6.5 degrees C
Final bath temperature is factory set at -35 degrees C.
Since the freezing unit has few parts, it travels quite safely in the provided carrying case. As with any electronic equipment, care should be exercised in transport and operation to avoid dropping or exposure to water.
The use of other heat transfer liquids is not recommended. Fluids such as acetone, methanol, and isopentane should be avoided because of their caustic effects on plastic parts contained in the freezer. The use of non-approved fluids will void all warranty from the manufacturer and dealer. Do not transport the unit with alcohol in the freezing chamber.
