25 
Care and Maintenance 
 
 
 
Cleaning 
 
Please do not use any aggressive cleaning agents (solvents or similar 
agents). Instead, use a piece of cloth that has been wet with a mild 
detergent to clean the scale. Make sure that no liquid enters the scale 
housing. After cleaning, wipe down the scale with a soft, dry piece of 
cloth. 
 
 
Safety Inspection 
 
lf there is any indication that safe Operation of the scale with the AC 
adapter/power supply is no longer warranted, turn off the scale and 
disconnect the equipment from AC power 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 Service Center or International Tech-
nical Support Group based in Goettingen, Germany. Only service 
technicians who are authorized by Sartorius and have access to the 
required manuals are allowed to perform maintenance and repair 
work on the equipment. 
 
Safe Operation of the scale with the AC adapter/power supply is no 
longer ensured when 
 
—  there is visible damage to the AC adapter/power supply 
—  the AC adapter/power supply no longer functions properly 
—  the AC adapter/power supply has been stored for relatively 
long periods under unfavourable conditions 
—  the AC adapter/power supply has been exposed to rough 
handling during shipment 
 
 
We recommend that the scale along with the AC adapter/power sup-
ply be inspected by a qualified Sartorius service technician according 
to the checklist given below. 
 
—  Leakage current <0.05 mA measured by a properly calibrated 
multimeter 
—  Insulation resistance >7 megohms measured with a constant 
voltage of at least 500 V at a500kohmload. 
 
The duration and number of measurements should be 
determined by a qualified Sartorius service technician 
according to the particular ambient conditions 
and operational conditions of the AC adapter. Such 
inspection should be done at least once a year.