VEVOR HFD-4 Bedienungsanleitung Seite 5

.Safety
4
Attention: Remove the power plug
The power should be shut down, and the power plug should
be removed when maintenance or open the frame cover.
Attention: Chemical solvent
The samples with high acid or solvent content can not be dried
in the absence of special protection (if necessary, please
contact the service department), otherwise the freeze dryer
may be corroded. When drying containing azide should pay
more attention to it, because with copper or other non ferrous
metal reaction will explode.
Attention: Chemical solvent
The samples with high acid or solvent content can not be dried
in the absence of special protection (if necessary, please
contact the service department), otherwise the freeze dryer
may be corroded. When drying containing azide should pay
more attention to it, because with copper or other non ferrous
metal reaction will explode.
Warning: Do not touch the condenser chamber's internal
surface
In the process of freezing, the temperature of condenser
chamber is very low. When putting sample inside, the fingers
do not touch chamber. Otherwise the fingers may freeze to the
surface.
Note: delivery or handling requirements
Don't hold the control panel when delivery and put down the
machine. Be careful with your hand to avoid crushing.
5.Below operations are prohibited
（1）The freeze dryer is not properly installed
（2）It's not allowed or authorized
（3）The tray is not fixed
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