8troubleshooting, 8 .1 malfunctions and their remedy – BUCHI SpeedDigester K-439 User Manual
Page 56
8 Troubleshooting
56
K-439 Operation Manual, Version A
8
Troubleshooting
This chapter helps to resume operation after a problem has occurred with the instrument which does
not require special technical training. It lists possible occurrences, their probable cause and suggests
how to remedy the problem.
The troubleshooting table below lists possible malfunctions and errors of the instrument. The operator
is enabled to correct some of those problems or errors by him/herself. For this, appropriate corrective
measures are listed in the column “Remedy”.
8 .1
Malfunctions and their remedy
Info/error numbers and messages and their corrective measures
Info/error number
Message
Measure
1
You cannot delete the actual method!
Do not try to delete the current method.
4
You have changed an existing method. Over-
write method?
Overwrite the existing method or store the
new parameters under a new name.
5
The method list is full! You have to delete
some methods.
Delete some methods and add new
methods.
6
Heating finished!
Heating process is finished, take racks in
cooling position. Press OK to confirm it.
7
Digestion done!
Digestion and cooling is finished. Press OK
to confirm it.
8
The actual temperature is higher than the
preheating temperature. Start Step 1?
Choose "Yes" to start with a higher
temperature. Choose "No" to wait until the
system is cooled down to the preheating
temperature.
9
EEPROM for Device Data defect or missing!
Contact the Buchi customer service.
10
EEPROM for Print Data defect!
Contact the Buchi customer service.
11
Temperature sensor 1.
Contact the Buchi customer service.
12
Temperature sensor 2.
Contact the Buchi customer service.
15
Electronic device too hot
Contact the Buchi customer service.
16
Supply voltage out of range
Make sure that the mains voltage corre-
sponds to the type plate. If yes, contact
the Buchi customer service.
17
Unit runs in Demo Mode.
Switch off the Demo Mode in the Settings.
18
Restart from Watchdog.
No corrective measure needed.
19
Delete "XY"?
Confirmation for deletion of a method
needed.