19
Care and Maintenance
Cleaning
Please do not use any aggressive cleaning agents (solvents or
similar agents). Instead, use a piece of cloth wet with a mild de-
tergent to clean the balance.
Make sure that no liquid enters the balance housing.
After cleaning, wipe down the balance with a soft, dry piece of
cloth.
Safety Inspection
lf there is any indication that safe Operation of the balance is
no longer warranted, turn off the power and unplug the balance
immediately. Lock the equipment in a secure place to ensure
that it cannot be used for the time being.
In this case, notify the Sartorius Technical Services Dept. or Di-
vision. Only certified Sartorius service technicians who have the
proper manuals are allowed to perform maintenance and repair
work on the balance.
Safe Operation of the balance with the power supply is no
longer ensured when
— there is visible damage to the power supply
— the power supply no longer functions properly
— the power supply has been stored for relatively long periods
under unfavorable conditions
— the power supply has been exposed to rough handling dur-
ing shipment
We recommend that the balance with the power supply be in-
spected according to the following checklist by a qualified Sarto-
rius Service technician:
— Leakage current <0.05 mA measured by a properly cali-
brated multimeter
— Insulation resistance >7 M
Ω
measured with a constant volt-
age of at least 500 V at a 500 k
Ω
load
The duration and number of measurements should be deter-
mined by a qualified Sartorius service technician according to
the particular ambient and operational conditions. However,
such inspection must be done at least once a year.
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