Maintenance
Clean the Air Filter
7
7-7
Clean the Air Filter
The air filter must be removed and cleaned each 30 days or more frequently if the
calibrator is operated in a dusty environment. The air filter is accessed from the rear panel
of the calibrator.
To clean the air filter, refer to Figure 7-3 and continue as follows:
1. Turn off the power, let the fan stop, and disconnect the ac line cord.
2. Remove the filter element.
a. Hold the top and bottom of the air filter frame.
b. Squeeze the edges of the frame to the middle to disengage the filter tabs from the
slots in the calibrator.
c. Pull the filter frame straight out from the calibrator.
3. Clean the filter element.
a. Clean the filter element in soapy water.
b. Flush the filter element.
c. Shake out the unwanted water, and then let the filter element to dry before you
install it.
4. Install the filter element. Do the filter removal steps in reverse.
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
oq062f.eps
Figure 7-3. Access the Air Filter
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