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BÜCHI
Vac
V-500/V-501/V-502/V-503
6 Maintenance
6.4
Customer Service
Work on or in the apparatus may be carried out only by au-
thorized service personnel. These are people with sound tech-
nical vocational training and knowledge of the risks which re-
sult when safety measures are disregarded. BÜCHI customer
service offices have service manuals specific to the various
apparatus; these manuals can be obtained only by authorized
personnel.
The addresses of the official BÜCHI customer service offices
are listed on the last cover page of these operating instructions.
If malfunctions arise or if you have technical questions or prob-
lems in operating the apparatus, please turn to these offices.
BÜCHI’s customer service provides the following services:
•
• Spare parts service
•
• Repair service
•
• Maintenance service
•
• Technical consulting.
6.5
Working with strong acids / bases on Büchi
VAC V-500 – 513
If strong acids or bases are removed with a Vacuum pump,
protecting clothing such as goggles and laboratory coats must
be worn during operation of the device.
If strong acids or bases are distillated we highly recommend
to rinse the pump after the application to increase the lifetime
of the instrument.
That means 5-10 ml of water should be sucked in trough the
pump inlet and collected directly after the pump outlet. This
process should be repeated as long as the pH of the liquids
coming out of the pump outlet, is between 3-9.
After that the pump is been dried, by sucking air through the
pump for 2-3 min.
