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6.5 Working hours
You can check and change the working hours only if the rotor is at standstill.
• Keep the key pressed for 8 seconds.
After 8 seconds, SOUND / BELL XXX will be displayed.
• Press the key again.
The working hours (CONTROL: ) of the centrifuge will be displayed.
• To exit the working hours check screen, press the or key.
Press the
RCF
key to set the working hours.
• Set the working hours with the and keys.
• Press the
START
key to save the setting.
∗∗∗ ok ∗∗∗ is displayed for a short time to confirm that the setting has been saved.
6.6 Checking the motor slippage
The centrifuge control can readjust the speed by max. 5 % (control limit).
The error (N < MIN 13) is displayed if the rotor speed (ACTUAL speed) is lower than the
SET speed minus 5%.
Checking the slippage:
• Start a centrifugation run and wait until the set speed is achieved.
• Keep the key pressed (approx. 8 s) until the following is displayed:
X X X X
X X X X
________
________
↑
↑
Rotor speed Field speed
Slippage = (
field speed) - (rotor speed)
The slippage display automatically disappears after 8 seconds.
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