Sigma 4-15C, Руководство по эксплуатации

Страница: 32 / 95

Operating Manual SIGMA 4-15C, page 32 of 95
03/06
2.1 General Outlay
The new generation of SIGMA laboratory centrifuges is equipped with two
microprocessors which guarantee independently the control of the rotor
recognition and the overspeed signal. A further optimization and increase of the
instrument
’
s safety could be maintained. The long-life asynchronous motor is
silent and brushless. The problem of carbon brush change is no longer existent,
and as there is no carbon dust pollution, operation in clean rooms is possible if
the appropriate accessories are used.
2.2 Construction and Constructive Safety Measures
The centrifuge is built into a sheet steel housing. The armoured chamber, the
sheet steel lid, the motorized lid lock device and the hinge system are providing
optimum safety. At the back the lid is secured by solid hinges and at the front
twice by a motorized lid lock. Due to these elements there is a solid safety case
around the rotor chamber.
The centrifuge stands on elastic feet.
2.3 Drive
The drive motor is a well dimensioned asynchronous motor.
2.4 Operation and Display
The grafical LCD display is hermetically sealed. A single knob only allows any
data input. The backlit display indicates any operating status and guides the
operator through the wide range of applications.
Option:
A connection for a serial interface is possible so that an external personal com-
puter with printer can be connected for control or recording.