Hettich EBA 20S - Centrifuge Component Overview; Electrical Components of the EBA 20 S

6/34
3 Description of the centrifuge
The EBA 20S is a microprocessor-controlled centrifuge which is comprised of the
following electrical components:
• Control panel
• Power board
• Motor
• Speed sensor (Tacho)
• Brake resistor with overtemperature fuse
• Lid lock system
• Imbalance switch
All electronic components are on mains, due to the DC-coupling
Netz / Mains
Verschluß / Lid lock
Deckelschalter
Lid switch
Uwuchtschalter
Imbalance switch
Bremswiderstand
Brake resistor
Leistungsteil
Power board
mit Mikroprozessorsteuerung
und Frequenzumrichterteil
With Micoprocessor control
and frequency control
Steuerteil LED / Control panel LED
EEPROMSchnittstelle / Interface
Motor
Drehzahlsensor (Tacho)
Speed sensor (tacho)