8 Troubleshooting
29
C-660 Operation Manual, Version F
8
Troubleshooting
The following chapter describes how to resume operation of the instrument in the event of any minor
problem. It will list some possible occurrences, their probable cause and suggests how to remedy the
problem. The troubleshooting table below lists possible malfunctions and errors of the instrument and
describes operator enabled courses of action to correct some of tubing problems by him or herself.
The appropriate course of action is listed in the column “Corrective measure”.
The elimination of more complicated malfunctions or errors is usually performed by a BUCHI technical
engineer who has access to the official service manuals. In this case, please refer to your local BUCHI
customer service agent.
There is an optical and acoustical alarm in case of an error. Pressing the selector switch one time
stops the alarm tone. You can now read the alarm text on the display. Pressing the selector switch
again quits the error. If the error is not existing anymore you can continue working.
There are several error codes existing for a quick and easy diagnosis. Only a few codes are relevant
for the customer.
Please contact the BUCHI customer service if the error codes 07 – 32 appear.
Shut off the fraction collector and switch it on again if “Arm is jammed” appears in the display, thus
enabling the collector arm to reposition itself.
Please contact the BUCHI customer service if this measure does not help.
8 .1
Malfunctions and their remedy
Table 8-1: Error messages
Error number
Possible cause
Remedy
01
Pump cannot reach desired flow rate. The
pump electronics have switched off the pump,
since the pressure is too high.
Control backpressure
Contact the BUCHI Customer Service.
02
No connection to pump (timeout).
Check RJ 485 connections. Check main power.
Check connections. Check selector
switch at the back side of pump module.
03
Check sum false or unintelligible response
from pump.
Contact the BUCHI customer service
04
Error while writing in the pump electronics
EEPROM.
Contact the BUCHI customer service
05
Temperature of pump electronics too high.
Contact the BUCHI customer service
06
Line voltage too high.
Contact the BUCHI customer service
07
Line voltage too low.
Contact the BUCHI customer service
08
Invalid data in pump electronics EEPROM.
Contact the BUCHI customer service
09
RS-485 bus voltage too low.
Contact the BUCHI customer service
10
Internal auxiliary voltage not within tolerance
of pump electronics.
Contact the BUCHI customer service
11
Pump electronics fan defective.
Contact the BUCHI customer service
23
EEPROM C-605.
Contact the BUCHI customer service
25
Parity error at RS232.
Contact the BUCHI customer service
31
The wrong pump is connected (C-605 instead
of C-601).
Replace C-601 with C-605.
Summary of Contents for C-660
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