Integral Rcf; Query Integral Rcf; Activate Or Deactivate The Integral Rcf Display; Emergency Stop - Hettich ROTINA 420 Mode D'emploi

22

Integral RCF

The integral RCF is a measure for the effect of sedimentation (∫ n
centrifugation runs.
22.1

Query integral RCF

You can only query integral RCF if the integral RCF display is activated. See chapter "Activate or deactivate
integral RCF display".
The integral RCF is not saved. After starting the next centrifugation run or after switching off the device, the
integral RCF is deleted.
If the function, "Timing begins at speed" is selected, calculation of the integral RCF begins once the set
speed has been reached.
 key as often as is necessary until the integral RCF is displayed, e.g. =4.8667e+05
Press the
RCF
(=4.8667e+05 = 4,8667  10

Press the key. The centrifugation data are displayed again.
RCF

If necessary, press the
RPM
22.2

Activate or deactivate the integral RCF display

The integral RCF display is activated or deactivated as follows when the rotor is at rest:
You can scroll backwards through the menu by pressing the
The operation can be cancelled at any time by pressing the
stored.

Keep the key held down for 8 seconds.
PROG
After 8 seconds,  Machine Menu  appears in the display.

Press the key as often as necessary until the ->Settings is displayed.
PROG

Press the key. The SOUND / BELL = off/on is displayed.
START

Press the key as often as is required until RCF Integral = off/on is displayed.
PROG

Use the adjusting knob to set
off = integral RCF is deactivated,
on = integral RCF is activated.

Press the key to save the setting.
START
Briefly, Store Settings ... is displayed as confirmation, followed by -> Settings.

Press the key once to exit the "Settings" menu or press the
OPEN / STOP
"Machine Menu".
23

Emergency Stop


Press the key twice.
OPEN / STOP
During a not-stop, run-out is carried out with braking level 9 (shortest run-out). Braking level
braking level 0 has been preselected, run-out is carried out with braking level
time is longer, technically speaking, than braking level 9.
AB4701DEENFRIT
5
= 486670).
key to switch over to the RPM display.
off or on.
Rev. 12 / 04.2020
2
dt). This numerical value is used to compare
key.
T/°C
key. In this case, the settings are not
OPEN / STOP
key twice to exit the
OPEN / STOP
9d. With braking level 9d, the run-out
EN
9 is displayed. If
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