Buchi DuMaster D-480, Operation Manual

Page: 342 / 354

Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG
11 - Appendix 342
Warranty of the overall instrument
Warranty of the overall instrument
Please refer to your order for details on the warranty on the overall instrument.
Excluded from the warranty
Wear and tear parts and consumables are excluded from the warranty.
Warranty on the furnace
Warranty on the furnace
BÜCHI Labortechnik AG gives a 10-year warranty on the furnace. In the event of a manufacturing or
material fault, you will receive a replacement furnace free of charge during the 10 years as of the date
of delivery.
What is excluded from the warranty?
Damage due to improper use is excluded from the warranty. The following instructions have been
compiled for correct operation of the furnace and must be observed in order to uphold the warranty.
Instructions for operating the furnace
Observe the following instructions for using the furnace so that the warranty is upheld.

The user must ensure that the furnace is operated according to the instructions.

The furnace must not be heated in excess of the maximum temperature indicated in the
operating instructions.

The furnace must not be operated with a voltage higher than that indicated on the type plate.

In the event of breaks lasting several hours (e.g. overnight downtime) furnace 1 must be reduced
to 800 °C.

In the event of longer breaks lasting several days (as of 5 days) the furnace must be shut down
(set temperature control to 0 °C).

The furnace must be protected against penetration of liquids.

Short-circuits in connection with the heating spirals and/or the thermocouples must be avoided.

Inner and outer damage to the heating spirals, thermocouples and supply lines must be avoided.

Only use original parts from BÜCHI for operation (e.g. combustion tubes / Reductor, fillings,
seals, etc.).
In the event of furnace failure, the furnace must be sent at the following address for fault identification:
BÜCHI Labortechnik AG,
Meierseggstrasse 40,
9230 Flawil
Switzerland
If this analysis reveals that the furnace became defective due to improper use, all warranty claims
shall be forfeited.