5520A
Operators Manual
7-6
TO CLEAN FILTER REMOVE FROM INSTRUMENT
AND FLUSH WITH SOAPY WATER
WARNING
GROUNDING CONNECTOR IN POWER CORD MUST BE
CONNECTED TO ENSURE PROTECTION FROM ELECTRIC SHOCK
CHASSIS
GROUND
oqo62f.eps
Figure 7-2. Accessing the Air Filter
7-4. General Cleaning
For general cleaning, wipe the case, front panel keys, and lens using a soft cloth slightly
dampened with water or a non-abrasive mild cleaning solution that does not harm
plastics.
CAUTION
Do not use aromatic hydrocarbons or chlorinated solvents for
cleaning. They can damage the plastic materials used in the
calibrator.