Centrifuge with temperature control

摘要

Lowering of process quality of a sample is prevented even when a rotor is slowly decelerated taking a long time upon finishing a centrifugal process. A centrifuge having a steady operation mode of rotating a rotor at an inputted steady rotation speed and a deceleration stop mode of stopping the rotor by deceleration. When a remaining time of the steady operation mode is within a stop preparation time, a target controlled temperature of the rotor chamber is set from a first target controlled temperature to a second target controlled temperature that is higher than the first target controlled temperature. By setting the target controlled temperature of the rotor chamber high before switching to the deceleration stop mode, temperature of the rotor chamber is controlled to be close to a set temperature of the rotor and thus excessive cooling of a sample loaded to the rotor can be prevented.

主权项

1. A centrifuge comprising:
a rotor chamber containing a rotor in which a sample is loaded; a motor rotary driving the rotor; a cooling unit cooling temperature of the rotor chamber; a temperature sensor detecting the temperature of the rotor chamber; an input unit inputting operation conditions of the rotor; and a control unit controlling the motor in a steady operation mode of rotating the rotor at a setting rotation speed and for a setting time inputted by the input unit and a deceleration stop mode of stopping the rotor by deceleration after the steady operation mode is finished, wherein the control unit controls the cooling unit such that, when the setting rotation speed is higher or equal to a predetermined value, a target controlled temperature of the rotor chamber is set from a first target controlled temperature to a second target controlled temperature that is higher than the first target controlled temperature before starting deceleration of the rotor.