Care And Maintenance - Sartorius la series Operating Instructions Manual

Care and Maintenance

Service
Regular servicing by a Sartorius
technician will extend the service
life of your balance and ensure
its continued weighing accuracy.
Sartorius can offer you service
contracts, with your choice of regular
maintenance intervals ranging from
1 month to 2 years.
Repairs
Repair work must be performed by
trained service technicians. Any
attempt by untrained persons to
perform repairs may lead to hazards
for the user.
The replacement backup battery
used in the display and control unit
(soldered to PCB), type VL2020, is
supplied by the manufacturer
Panasonic. Only trained service
technicians are allowed to replace
this battery.
Caution:
Danger of explosion if the battery is
incorrectly replaced. Replace only
with the same or equivalent type
recommended by the manufacturer.
Dispose of used batteries according
to the manufacturer's instructions.
Cleaning
! Make sure that no dust or liquid
enters the balance housing
! Do not use any aggressive cleaning
agents (solvents or similar agents)
Unplug the AC adapter from the
wall outlet (mains supply)
If you have a data cable
connected to the interface,
unplug it from the balance
Carefully remove any sample
residue/spilled powder using
a brush or a hand-held vacuum
cleaner
Clean the balance using a piece
of cloth which has been wet with
a mild detergent (soap)
After cleaning, wipe down the
balance with a soft, dry cloth
138
Replacing the Dust Cover
> Instructions for replacing
a damaged dust cover
For LA Series Balances with a Round
Glass Draft Shield
Remove the following parts from
the balance:
– Draft shield cover
– Glass draft shield cylinder
– Weighing pan
– Pan support
– Shield disk: turn clockwise
and lift off
– Old dust cover
Place the new dust cover on
the balance and press down
on the front and back along the
edges until it is seated firmly
Place the shield disk
on the balance and turn it
counterclockwise
Follow the above instructions
in reverse order when placing
the remaining parts back on
the balance.
For LA Series Balances with
a Rectangular Weighing Pan and
a Weighing Capacity ≤ 12 kg
Remove the following parts from
the balance:
– Weighing pan
– Pan draft shield (depending on
balance model)
– Old dust cover
Place the new dust cover over
the balance
Follow the above instructions
in reverse order when placing
the remaining parts back on
the balance.
! The dust cover must not touch the
weighing pan
Safety Inspection
If there is any indication that safe
operation of the balance with the AC
adapter is no longer warranted:
Turn off the power and disconnect
the equipment from AC power
immediately
> Lock the equipment in a secure
place to ensure that it cannot be
used during this time
Safe operation of the balance with
the AC adapter is no longer ensured
when:
– there is visible damage
to the AC adapter
– the AC adapter no longer
functions properly
– The AC adapter has been stored
for a relatively long period under
unfavorable conditions
In these cases, notify your nearest
Sartorius Service Center or the
International Technical Support Unit
based in Goettingen, Germany.
Maintenance and repair work may
only be performed by service
technicians who are authorized by
Sartorius and who
– have access to the required
maintenance manuals
– have attended the relevant service
training courses