Block Functions - VWR Mega Star 600R Service Manual

FUNCTIONAL DESCRIPTION 3-2

Block functions

The Mega Star 600R is a refrigerated laboratory tabletop centrifuge with microprocessor control,
noise reduced induction drive motor and automatic rotor, speed and imbalance detection.
The unit is equipped with following boards and components:
 Instrument socket with inlet filter for mains cable
 Two poles mains switch with integrated thermal over-current release (15A)
 Choke (230V units only – mounted on main board chassis)
 Main board with microprocessor part and power electronics
 Backlit liquid crystal display
 Overlay keypad
 Motor cover with sensor board incl. speed, rotor and imbalance detection
 3 phase induction motor with integrated thermal over temp. cut out (C. O. 130°C)
 Lid lock with motorized opening and emergency release
 Brake resistor
 Cooling plant with compressor, condenser, evaporator, thermo static expansion valve, filter dryer
and over pressure cut out