Buchi Vacuum Controller V-855 Uživatelský manuál stáhnout pdf (Strana 47)

8 Troubleshooting

47 V-850/855 Operation Manual, Version E

Error messages

Error message Remedy

The pressure sensor is not working Contact the BUCHI customer service.

The pressure sensor is not calibrated Calibrate the pressure sensor as described in chapter

6.8. We recommend to have the simple and the complete

calibration carried out by the BUCHI customer service.

Data transfer error on the RS-485 Check whether the RS-485 cable is at the right place

and that only one vacuum controller is connected to it.

The AutoDest probe is not connected Install the AutoDest probe as described in chapter 5.3.

Because of a leak the distillation process was cancelled Retighten all connections and check all seals.

Excess pressure in the system Let the pump run continuously until it has reduced the

system pressure.

There was a read/write memory error Contact the BUCHI customer service.

8.2 Customer service

Only authorised service personnel are allowed to perform repair work on the instrument. These

persons have a comprehensive technical training and knowledge of possible dangers which might

arise from the instrument.

Addresses of ofﬁcial BUCHI customer service ofﬁces are given on the BUCHI website under:

www.buchi.com. If malfunctions occur on your instrument or you have technical questions or applica-

tion problems, contact one of these ofﬁces.

The customer service offers the following:

• Spare part delivery

• Repairs

• Technical advice

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Buchi Vacuum Controller V-855 Uživatelský manuál Strana 47