Agilent Technologies 8360B, User Manual, Page: 467 / 496

Ho w to Clean the F an
Filter
The co oling fan lo cated on the rear panel has a thin foam lter.
Ho w often the lter m ust b e cleaned dep ends on the en vironmen t
in whic h the sw ept signal generator op erates. As the lter collects
dust, the fan sp eed increases to maintain airow (as the fan sp eed
increases, so do es the fan noise). If the lter con tinues to collect
dust after the fan reac hes maximum sp eed, airow is reduced and
the sw ept signal generator's in ternal temp erature increases. If the
in ternal temp erature reac hes 90 C the sw ept signal generator will
automatically turn o and the amb er ST ANDBY LED will turn on.
Clean the fan lter as follo ws:
1. T urn o the sw ept signal generator.
2. Remo v e the ac line cord.
Note
The detac hable p o w er cord is the instrumen t disconnecting device.
It disconnects the mains circuits from the mains supply b efore other
parts of the instrumen t. The fron t panel switch is only a standb y
switch and is not a LINE switch.
3. Remo v e the screws holding the fan cage. See Figure 4-2 .
4. Remo v e the fan cage from the rear panel.
5. Rinse the fan cage, lter, and the lter retainer in w arm w ater,
then dry .
6. Rev erse the remov al pro cedure to reassem ble the sw ept signal
generator.
Figure 4-2. Remo ving the F an Filter
Operator's Check/Routine Maintenance 4-5