Faults; Change Mains Input Fuse; Acceptance Of The Centrifuges For Repair - Hettich MIKRO 120 Bedienungsanleitung

17

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.
Fault Display
No display ---
System reset - 2 -
Balance error - 3 -
Kommunication - 4 -
Overload - 5 -
Overvoltage - 6 -
Undervoltage - 8 -
Excess temperature - 9 -
Controller watchdog - C -
Lid error - d -
Short circuit - E -
Configuration - F -
18

Change mains input fuse

Switch off the mains switch and separate the centrifuge from the mains!
A B
19

Acceptance of the centrifuges for repair

If the centrifuge is returned to the manufacturer for repair, it must be decontaminated and cleaned to protect persons,
environment and material.
We reserve the right to accept contaminated centrifuges.
Costs incurred for cleaning and disinfection are to be charged to the customer.
We ask for your understanding in this matter.
You will find further information on our homepage: http://www.HettichLab.com
All manuals and user guides at all-guides.com
Cause of fault
No voltage
Triggering of the excess current cut-out.
Failure of power supply during a run
Unbraked runout.
Balance error on the motor axis due to
weight differences in the rotor loading.
Fault in control unit or power unit.
Unbraked runout.
Motor or motor control defective.
Supply voltage outside tolerance (see
Technical Data)
Unbraked runout.
Excess temperature switch in motor has
triggered.
Unbraked runout.
Fault in control unit
Unbraked runout.
Unbraked rundown,
after standstill lid release
Short circuit in control unit / power unit.
Incorrect machine version
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 distribution voltage.
-
Check fuses.
-
Mains switch ON.
-
When stationary, open lid and
-
press key.
START
Open lid when rotor is stationary.
-
Eliminate balance error.
-
Perform mains reset when
-
stationary.
Perform mains reset when
-
stationary.
Perform mains reset when
-
stationary.
Check supply voltage.
-
When rotor is stationary, open lid
-
using emergency unlocking (see
Emergency Unlocking chapter).
Allow motor to cool down.
-
Perform mains reset when
-
stationary.
Perform mains reset after
-
standstill.
Perform mains reset when
-
stationary.
− Inform Customer Service.
EN
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