58
BÜCHI
Fat Determination
B-820/B-821
6.8
Changing the ribbon
Press lightly on the left hand side of the ribbon (<Push>) - this
enables the ribbon to be lifted out. Feed the paper into the slit
of the new ribbon, insert the new ribbon and press down
lightly.
6.9
Checking for fractures and cracks
Check the gas connections and separation column for possible
fractures and cracks before each use. The unit must not be
operated if the separation column is damaged.
6.10 Customer service
Work on or in the unit must only be carried out by authorized
service personnel, i.e. skilled technicians who are familiar with
the operating instructions and current safety regulations and
accident prevention.
Büchi service centers have instrument specific service manuals
which are only available to authorized personnel.
There is a list of the Büchi customer service centers on the
last page of this instruction manual. For any application or
technical question as well as unit malfunctions, please contact
one of these centers.
Büchi customer service representatives are pleased to provide
the following services:
•
Replacement parts service (when placing an order, please
use the article numbers printed in this manual)
•
Repair service
•
Maintenance service
•
Technical hotline
6 Maintenance
