© 2012 Harmonic Inc.
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Electra 1000, Version 3.0, Rev M
Chapter 5
Maintenance and Troubleshooting
This chapter describes:
How to maintain and replace the air filters and fuse
How to contact Harmonic Support
5.1 Air
Filters
The encoder uses two air filters to minimize dust and dirt in the circuitry and components in
the chassis. These filters are made of flexible, compressed fiber spun from urethane foam.
Installed in the front of the encoder, the filters are fire retardant and conform to UL 900
Class II specifications.
The bezel filter is located inside the front bezel, on the left side. Figure 5-1 shows the
dimensions of the bezel filter. The notches on the left side and the cutouts in the middle can
fit on either side of the front bezel mounting posts.
Figure 5-1: Bezel filter (front view)
The keypad filter is located behind the front panel keypad. Figure 5-2 shows the keypad filter.
Figure 5-2: Keypad filter (front view)
5.1.1
Maintaining the Air Filters
The operating environment of the encoder plays a large factor in determining the life of the
air filters. Encoders that operate in dusty and dirty surroundings require more frequent
inspections and filter cleaning than those operating in cleaner environments.
Inspect and clean the filters with a frequency that is appropriate to the environment in which
the encoder operates. Harmonic recommends inspecting and cleaning the filters every six
weeks to ensure proper airflow through the chassis.
To clean dust and dirt from the filters, you can use a vacuum cleaner to remove the dirt, or
you can rinse the filters in water. You can also use soaps or mild detergents on the filters. If
you rinse the filters in water, make sure that you squeeze the excess water from them before
reinstalling them in the encoder. You might need to order replacement filters if the filters
become too dirty over time.
5.32 inches
1.64
0.25 inches
inches
6.45 inches
0.25 inches
1.64
inches
