Refrigerated Centrifuge with Heating System Sigma 2-16KHL
6 Using the centrifuge
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Version 02/2013, Rev. 1.19 of 25/04/2019
• sb
Translation of the original operating manual, part no. 0700802
6.3.2.10 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. 25: "Padlock" symbol indicating an activated input lock
6.3.3
Program mode
A program contains all the data that are required for a centrifuge run.
Certain sedimentation results can be repeated under identical conditions.
Programs can be saved, loaded, executed, and edited when the centrifuge
is at a standstill.
A maximum of 50 programs can be stored under the numbers 1 - 50. The
rapid cooling program "Rapid Temp" does not occupy any storage location
and cannot be deleted. It is used to cool the centrifuge without any vessels.
"--" means that the values that are currently set are not a stored program.
The programs can be protected against unauthorised use, modification, or
deletion with the aid of an input lock (see chapter 6.3.2.10 - "Input lock").
