Refrigerated centrifuge Sigma 4-5KL
Refrigerated centrifuge Sigma 4-5KL IVD
6 Using the centrifuge
Version 06/2020, Rev. 1.2 of 28/04/2022
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Translation of the original operating manual, part no. 0703602
6.3.2.14 Input lock
In order to prevent the centrifuge from being manipulated by unauthorised
persons, inputs can be disabled via the menu. Inputs via the keypad, i.e. for
starting or stopping a centrifugation run or for opening the lid, are enabled.
Activating a simple input lock:
• Position the cursor over the symbol "
" in the lower right-hand corner
of the display.
As long as the symbol is displayed, the parameters of the centrifuge cannot
be changed.
Activating a permanent input lock:
• Press the start key three times and hold for approximately 2 seconds
when pressing it for the third time.
After the activation of this function, the padlock symbol flashes. The input
lock is activated.
• Proceed in the same manner in order to deactivate the permanent input
lock.
Fig. 28: "Padlock" symbol indicating an activated input lock
6.3.2.15 Eco mode
The centrifuge has an Eco mode so that the refrigeration unit will be
switched off after a preset time if the centrifuge is at a standstill. This is a
global setting. It is not possible to activate or deactivate the Eco mode for
individual programs.
The turn-off countdown begins in the background after the last keystroke
while the centrifuge is at a standstill. However, the last 29 minutes of the
countdown will be displayed.
Fig. 29: Indication of the last 29 minutes of the countdown before the activation of the Eco
mode
If a key is pressed during the countdown, the countdown will be reset and
started again.
