Buchi DuMaster D-480, Руководство по эксплуатации

Страница: 167 / 354

Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG
8 - Maintaining the instrument 167
Maintenance work to be performed by the customer
Note
Observe that the maintenance or replacement times indicated here are greatly dependent on the
respective sample matrix. All intervals and figures indicated are only examples and by no means
guarantee service life of consumables or wear and tear parts.
Maintenance work to be performed by the customer
The following table lists the maintenance work that you can perform yourself as customer and the
intervals for these tasks.
Maintenance work Interval See ...
Replacement of the ash crucible Depending on the sample matrix. Replacing the ash crucible.
Cleaning the Ni flap When replacing the ash crucible Cleaning the Ni flap.
Instrument and supply lines leak
test
At least every 2 months. Performing a leak test.
Checking hard disk capacity and
relocating data if necessary.
Backup every week, relocate data
to disk as required.
Starting the database
backup
(on page 94).
Calibration When the daily factor is no longer
between 0.9 and 1.1, but not later
than every 2 years.
Performing calibration.
Clean ball valve, possibly
replacing seals.
Every 1500 analyses. Ball valve maintenance.
Replace sealing elements (o-
rings, quad rings, half shells)
As required. When to replace sealing
elements.
Removing sealing elements
from grooves
(on page 196).
Cleaning the carousel As required. Removing, cleaning and
installing the carousel.
Check/clean quartz glass bridge,
check o-rings at the same time
Whenever you change tubes. Removing, cleaning and
installing the quartz glass
bridge.
Replace reaction tubes
(combustion tube / post
combustion tube / reductor),
replace fillings, check plugs and o-
rings at the same time
Replacement intervals, see
Options > Maintenance >
Intervals
in the operating
software.
Removing/installing and
conditioning the reaction
tubes.
Emptying and filling reaction
tubes.
Check/replace drying tube; check
o-rings at the same time
Daily visual inspection Removing and installing the
drying tube.
Filling the drying tube
(on
page 233).
Check supply gases for correct
intake pressure and sufficient
volume
Before every series of analyses. Gases and chemicals to be
provided.
Recommendation
Taking out a service contract for full annual maintenance saves time and money. Contact your service
office for details.