Buchi K-437, Руководство по эксплуатации

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7 Maintenance and repairs
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K-437 Operation Manual, Version A
7 Maintenance
This chapter gives instructions on all maintenance work to be performed in order to keep the instru-
ment in good working condition.
WARNING
All maintenance and repair work requiring the opening or removal of instrument covers may only be
carried out by trained personnel and with the tools provided for this purpose.
WARNING
Electrical hazard:
Prior to all maintenance work on the instrument switch off the power supply and remove all •
sources of flammable vapor.
ATTENTION
Always wear personal protective equipment such as protective eye goggles, protective clothing and
gloves when maintaining the instrument.
Check the instrument for proper operation after any repair work.
7 .1 Housing
Check the housing for defects (switches, plugs) and clean it regularly with a damp cloth.
ATTENTION
Never use solvents as cleaning agents as these might damage the instrument.
As the housing is made of metal and covered with an acid-resistant coating, any acid drops must •
be wiped away immediately with a damp cloth.
7 .2 Glass parts
The glass parts can be taken out and cleaned with commercially available cleaning agents or in an
ultrasonic bath. After the glass parts have been cleaned and fully dried, check each part visually for
cracks, scratches and for any parts or sections that might have splintered off. Take out and replace
any damaged glass parts.