Hettich EBA 20 - Imbalance Switch-off (only with EBA 20 C); Change Mains Input Fuse

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6.7 Imbalance switch-off (only with EBA 20 C)
The permissible imbalance is specified for rotor E1824 by the indication of the
difference in weight of opposite rotor positions.
When having a difference in weight within the range of 6g to 12g during run-up, the
drive has to switch off before reaching 1500 RPM.
The imbalance switch-off is adjusted by changing the distance of the imbalance switch.
With a test run with the indicated differences in weight the imbalance switch-off will be
checked.
Adjusting the imbalance switch:
• Loosen both screws at the angle bracket of the imbalance switch on the outer part of
the housing floor until you can shift it.
• Set the permissible imbalance by shifting the angle bracket.
• Tighten both screws at the angle bracket of the imbalance switch again.
• Check the imbalance switch-off with a test run.
7 Change mains input fuse
Switch off the mains switch and separate the centrifuge from the mains!
The fuse holder (A) with the mains input fuses is located next to
the mains switch.
• Remove the connecting cable from the machine plug socket.
• Press the snap-fit (B) against the fuse holder (A) and
remove.
• Exchange defective mains input fuses.
AB
Only use fuses with the rating defined for the type.
See the following table.
• Reinsert the fuse holder until the snap-fit clicks shut.
• Reconnect the centrifuge to the mains supply.
Model Type Fuse Order no.
EBA 20 2002
EBA 20 C 2002-C
T 1,6 AH/250V E891
EBA 20 2002-01
EBA 20 C 2002-01C
T 3,15 AH/250V E997