Operating Manual SIGMA 2-16P page 42 of 75
04/2007
5.3.6 Lockdown
This function locks the parameters against all inadvertent changes.
• Turn the left rotary knob until a padlock symbol is displayed in the upper left
corner of the display (Fig. 5.18).
As long as the padlock symbol is displayed, the parameters cannot be changed.
5.3.6.1 Permanent Lockdown
The parameter settings can also be locked with the help of the start key when the
lid is open:
• Press the start key three times and on the third time hold it down for approx.
two seconds.
After the activation of the function, the padlock symbol (Fig. 5.18) will flash. Now
the centrifuge can be started and stopped, but the settings cannot be changed.
• Proceed in the same way in order to deactivate the function.
The current status remains active even if the centrifuge is switched off with the
help of the mains power switch.
Fi
. 5.18: Padlock s
mbo
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