Continuous Run; Short-Term Centrifugation; Emergency Stop; Acoustic Signal - Hettich ROTANTA 460 Bedienungsanleitung

EN
During the centrifugation run the rotational speed of the rotor or the subsequently resulting RCF value, the sample
temperature (only in centrifuges with cooling) and the remaining time will be displayed.
16.2

Continuous run

Adjusting the symbol or recall a continuous run programme (see Chapter "Entering centrifugation parameter"
or "Programme recall").
Press the key . The rotation display
START
00:00.
Press the key in order to stop the centrifugation run. The run-down is effected with the selected brake
STOP
step. The brake step is displayed.
During the centrifugation run the rotational speed of the rotor or the subsequently resulting RCF value, the sample
temperature (only in centrifuges with cooling) and the expired time will be displayed.
16.3

Short-term centrifugation

Hold down the key
IMPULS
Let go of the key
IMPULS
brake step. The brake step is displayed.
During the centrifugation run the rotational speed of the rotor or the subsequently resulting RCF value, the sample
temperature (only in centrifuges with cooling) and the expired time will be displayed.
17

Emergency Stop

Press the key twice.
STOP
With Emergency Stop the run-down is effected with brake step 9 (shortest run-down time). Brake step 9 is displayed.
If brake step 0 was pre-selected, the run-down time is technically longer than with brake step 9.
18

Acoustic Signal

The acoustic signal sounds:
Upon the appearance of a disturbance in 2 second intervals.
After completion of a centrifugation run and rotor standstill in 30 second intervals.
The acoustic signal is stopped by opening the lid or pressing any key.
The signal after completion of the centrifugation run can be activated or deactivated in the following manner, if the
rotor is at standstill:
Hold down the key for 8 seconds.
After 8 seconds, SOUND / BELL appears in the display.
Set OFF or ON with the key
Press the key in order to store the setting.
START
As confirmation, ok
19

Recall hours of operation

Recall hours of operation is only possible during rotor standstill.
Hold down the key for 8 seconds.
After 8 seconds, SOUND / BELL appears in the display.
Press the key once again.
The centrifuge's hours of operation (CONTROL: ) are displayed.
Press the key or to exit the hours of operation recall.
20

Cooling (only in centrifuges with cooling)

The temperature set-point can be adjusted from -20°C to +40°C. On centrifuges with a heating/cooling option, the
temperature set-point is settable from -20°C to +60°C / +90°C. The lowest obtainable temperature is dependent on
the rotor (see Chapter "Anhang/Appendix, Rotoren und Zubehör/Rotors and accessories").
20.1

Standby-cooling

With rotor standstill and closed lid the centrifugal chamber is cooled to the pre-selected temperature. The
temperature set-point is shown in the display.
20.2

Pre-cooling the rotor

For rapid pre-cooling of the unloaded rotor and the accessories, it is recommended that the centrifuge is run with the
continuous running settings and a speed of ca. 20% of the maximum rotor speed.
32/104
lights up as long as the rotor is turning. The time metering begins at
. The rotation display lights up as long as the rotor is turning.
again in order to stop the centrifugation run. The run-down is effected with the selected
or .
will be displayed for a short period.