BUCHI SpeedDigester K-439 - Manual (Page 22)

6 Operation
22 K-439 Operation Manual, Version A
6 Operation
This chapter gives examples of typical instrument applications and instructions on how to operate the
instrument properly and safely. See also section 2.5 “Product safety” for general warnings.
6 .1 Operating controls and housing
The SpeedDigester K-439 is equipped with electronic temperature control, an integrated LC-display
and a membrane keypad with multifunctional keys.
Up to 50 methods can be programmed, 20 of which are already predefined by default.
A method consists of Preheat step, 4 possible temperature steps and cooling-down time.
The programmed method is visualized graphically and during the digestion process the actual temper-
ature and the set temperature as well as the remaining time are displayed. The current status during
digestion is visualized by the icons at any time.
6 .1 .1 SpeedDigester K-439 — front side
Heating chambers
LC- display
Membrane keypad
Mains switch
USB interface
The mains switch is illuminated green when the system is switched on •
USB interface — for service purposes only •
Membrane keypad — covered by anti-corrosion foil •
Graphical LC- display •
Two heating chambers •