5700A/5720A Series II Calibrator
Service Manual
4-4
To clean the air filter, refer to Figure 4-2 and proceed as follows:
CHASSIS
GROUND
S2 S3 S4
FUSE -F1
!
F4-1.EPS
Figure 4-2. Air Filter
1. Disconnect line power.
2. Remove the filter element.
a. Unscrew the knurled screw at the top of the air filter (counterclockwise).
b. Pull the air filter retainer downward; it hinges at the bottom.
c. Remove the filter element.
3. Clean the filter element.
a. Wash the filter element in soapy water.
b. Rinse the filter element in fresh running water.
c. Shake out the excess water, then allow the filter element to dry thoroughly before
reinstalling it.
4. Reinstall the filter element, its retainer, and the knurled screw.
4-4. General Cleaning
To keep the Calibrator looking like new, clean 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.
WCaution
Do not use aromatic hydrocarbons or chlorinated solvents for
cleaning. They can damage the plastic materials used in the
calibrator.
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