Acoustic Signal; Recall Hours Of Operation; Cooling (Only In Centrifuges With Cooling); Standby-Cooling - Hettich MIKRO 200 Serie Bedienungsanleitung

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 (only in centrifuges with
cooling).
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
SELECT
After 8 seconds, SOUND / BELL appears in the display.

Set using the knob OFF or ON.

Press the key
START / IMPULS
As confirmation,  ok  will be displayed for a short period.
19

Recall hours of operation

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

Cooling (only in centrifuges with cooling)

The temperature set-point can be adjusted from -10°C to +40°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.
Standby cooling will be subject to a timed delay after a centrifuge run and the display will show
OEFFNEN. The delay time can be pre-set in 1minute steps from 1 to 5 minutes. It is pre-set to 1 minute.
With the rotor standing still and the cover open the delay time can be set as follows:

Hold down the key for 8 seconds.
After 8 seconds, t/min = X appears in the display.

Use the rotary button

Press the key
START / IMPULS
As confirmation,  ok  will be displayed for a short period.
To leave the delay time display press the key
20.2

Pre-cooling the rotor


Press the key . The LED in the button

Press the button
OPEN / STOP
brake step is displayed.
During the centrifugation run, the rotor speed or the RCF value, the temperature in the centrifuging chamber, and the
elapsed time are displayed.
The pre-cooling speed can be adjusted in decadic steps from 500 RPM to the max RPM of the rotor. It is pre-
adjusted to 10000 RPM.
When the rotor is stationary and the lid open the pre-cooling speed can be set in the following manner:

Hold down the key for 8 seconds.
After 8 seconds, t/min = X appears in the display.

Press the key once again.
The set pre-cooling RPM - RPM = XXXX will be displayed.

Set the desired pre-cooling speed using the knob .

Press the key
START / IMPULS
As confirmation,  ok  will be displayed for a short period.
To leave the pre-cooling RPM display press the key
AB2400DEENFRIT
for 8 seconds.
in order to store the setting.
for 8 seconds.
to exit the hours of operation recall.
to set the delay time.
in order to store the setting.
OPEN / STOP
START / IMPULS
to end the pre-cooling. The run-down is effected with the selected brake step. The
in order to store the setting.
OPEN / STOP
Rev. 09 / 04.2020
or do not press any key for a period of 8 seconds.
lights up for as long as the rotor turns.
or do not press any key for a period of 8 seconds.
EN
OPEN
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