31
Safety Inspection
lf there is any indication that safe Operation of the balance is no longer war-
ranted. turn off the power and unplug the balance from the power supply imme-
diately. Lock the balance and the power supply in a secure place lo ensure that
they cannot be used for the time being.
Safe Operation of the equipment is no longer ensured when
—
there is visible damage 1o the power supply
—
the power supply no Ionger functions properly
—
the power supply has been stored for relatively Ion g periods under unfa-
vourable conditions
In this case, notify your nearest Sartorius Service Center or the International Ser-
vice Support Department based in Goettingen, Germany. Only service technicians
who have access to the required maintenance manuals are allowed to perform
maintenance and repair work on the equipment.
We recommend that the balance together with the power supply be inspected by
a qualified Sartorius service technician according to the following checklist;
—
Insulation resistance >7 megohms measured with a constant voltage of at
least 500 V at a 500 kohm load
—
Equivalent leakage current <0.05 mA measured by a property calibrated
multimeter
The duration and number of measurements should be determined by a qualified
Sartorius service technician according to the particular ambient and operational!
conditions for the power supply.
Such inspection should be done at least once a year.
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