Buchi K-355, Руководство по эксплуатации

Страница: 29 / 38

8 Troubleshooting
29
K-355 Operation Manual, Version G
8 Troubleshooting
This chapter helps to resume operation after a minor problem has occurred with the instrument. 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 “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.
8 .1 Malfunctions and their remedy
Table 8-1: General malfunctions and their remedy
Error number / Error indication Possible cause Corrective measure
E 30 Service door open. Close service door.
E 31 Protective door open. Close protective door.
E 32 Sample tube missing. Insert a sample tube.
E 40 Steam generator overheat. Switch off the instrument
immediately and contact the Buchi
customer service.
E 40 - E 47 Electronic problem. Contact the Buchi customer service.
E 50 - E 56 Steam generator problem. Water feeding problem. Control the
water volume in the tank.
Control the tube connections.
E 61 Cooling water flow too low
(< 0.5 l/min for > 30 seconds). Increase the cooling water flow.
Check the tightness of the cooling
water circulation.
E 70 - E 76
Signal sound in a 10 seconds interval Keyboard problem. Switch off the instrument.
Contact the Buchi customer service.
“H” in the STEAM display Steam generator is heating, not
ready for distillation. Heating takes approx. 3 minutes. A
flashing colon (:) and no “H” in the
STEAM display indicates that the
steam generator is ready.
Decimal point flashing in the
TIME display during distillation Cooling water flow too high
(> 2.5 l/min). Reduce the cooling water flow.
Decimal point stable in the
TIME display during distillation Cooling water flow too low
(< 0.5 l/min). Increase the cooling water flow until
the decimal point disappears
(reaction time approx. 5 seconds).
Check the tightness of the cooling
water circulation system.