Buchi DuMaster D-480, Руководство по эксплуатации

Страница: 242 / 354

Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG
9 - Repairing the instrument 242
F7 + F8 Furnace transformer 15 A
Process
The section is divided into the following phases:

Allow instrument to cool down and disconnect from the mains

Remove and check fuse

Insert fuses

Switch the instrument on again
Note
Please note:

If the fuses trip, please always notify your service office as there may be serious reasons for this.

Only use fuses matching the indicated type and the indicated voltage on the fuse holder. No
fuses with a higher amperage (A) may be used.
Safety instruction
Strictly observe the safety instruction "Replacing fuses" under
Warning notes during operation
(on
page 24).
Phase 1: Allow instrument to cool down and disconnect from the mains
Proceed as follows:

Set the furnace off by
System > Ofen
.

Wait 2-3 hours until the instrument has cooled down to at least 55 °C.

Quit the operating software. Execute the following command:
File > Exit
.

Switch off the analyzer and its peripherals.

Disconnect the analyzer from the mains. Disconnect the power supply plug.

The instrument is now ready for removal of the fuses.
Fuse holder
The following picture shows a fuse holder from the side:
Phase 2: Remove and check fuse
Proceed as follows:

If a part of the instrument is no longer working, consult the above table to find out which fuse is
resposible for the component.