Autoclaving; Centrifuge Containers; Faults; Change Mains Input Fuse - Hettich EBA 21 Mode D'emploi

22.3

Autoclaving

Swing-out rotors, angle rotors made of aluminium and accessory parts can be autoclaved at 121°C (20 min).
The lids of the rotors and containers must be removed prior to autoclaving.
Autoclaving accelerates the ageing process of plastics. In addition, autoclaving may discolour plastics.
22.4

Centrifuge containers

•
With leakiness or after the breakage of centrifuging containers broken container parts and leaked centrifugation
material are to be completely removed.
•
The rubber inserts as well as the plastic sleeves of the rotors are to be replaced after a glass breakage.
Remaining glass splitters cause further glass breakage!
•
If this concerns infectious material, a disinfection process is to be executed immediately.
23

Faults

If the fault cannot be rectified according to the faults table, Hettich customer services must be informed.
Please state the type of centrifuge and the factory serial number. Both values are visible on the centrifuge type plate.
MAINS RESET: - Mains switch OFF for longer than 10 secs.
- Mains switch ON.
Message / fault
No display
TACHO - ERROR
IMBALANCE
CONTROL - ERROR
06 - 09
N > MAX
N < MIN
ROTORCODE
MAINS INTERRUPT
VERSIONS-ERROR
CONTROL-ERROR 21 - 27
SER I/O - ERROR 30 - 38
FU / CCI - ERROR 60 - 83
N > ROTOR-MAX
24

Change mains input fuse

Switch off the mains switch and separate the centrifuge from the mains!
A B
Cause
--- − No voltage.
− Overvoltage protection tripped out.
01 − Faulty speedometer.
− No rotor installed.
02
− Defective motor, frequency converter or
drive.
--- Imbalance about motor axis through weight
differential in rotor assembly.
04, Error in lid locking or lid closure.
05 Rotation too fast
13 Rotation too slow
10 Incorrect rotor coding
--- Power failure, centrifuging not properly
completed
12 Mismatch between electronic components
Error / defective control unit
Error / defective interface
Error / defective motor control
--- Speed in the selected program greater than
the maximum speed of the rotor.
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 fuse.
•
Reinsert the fuse holder until the snap-fit clicks shut.
•
Reconnect the centrifuge to the mains supply.
Remedy
− Check supply voltage.
− Mains switch ON.
− Open lid.
− Turn rotor manually.
− MAINS-RESET when power is
switched on, rotor should turn.
− Open lid.
− Correct imbalance.
− Open lid.
− MAINS-RESET
− Open lid.
− Push
button.
START
− Open lid.
− MAINS-RESET
− Check the set speed.
Reduce the set speed
EN
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