Emerson OPM4001 Installation And Operation Manual page 46

I N S T R U C T I O N M A N U A L R E V 4 . 2
Control unit preventive maintenance
Preventive maintenance consists of cleaning the instrument regularly and inspecting it occasionally for broken or damaged parts.
Regular maintenance will improve the reliability of your instrument and prevent breakdowns.
Cleaning - Accumulations of dirt and dust on components act as an insulating blanket preventing efficient heat dissipation. Dust on
circuit boards and wires can cause arcing and short circuits, resulting in damage to components or even instrument failure. Clean
your instrument with clean high-pressure air before this happens!
The control unit chassis provides protection from dust and dirt and should be in place during normal operation of the instrument.
Exterior - Dust the chassis with a soft cloth. Dust the front panel with a soft paintbrush. Dirt clinging to the surface can be removed
with a soft cloth dampened with a mild detergent and water solution. Avoid using abrasive cleaners, as they will scratch the housing
and front panel.
Interior - Dust in the interior of the control unit should be removed before it builds up enough to cause arcing and short circuits
during periods of high humidity. Dust is best removed from the interior by the type of canned air used for computer cleaning. Dirt
clinging to the surfaces can be removed with a soft paintbrush.
Visual Inspection - Inspect the interior occasionally for broken connections, improperly seated semiconductors, damaged or
improperly installed circuit boards, heat damaged components, etc. If heat damaged components are found, care must be taken to
find the cause of the excessive heat and measures must be taken to prevent recurrence of the damage.
Semiconductor Checks - Periodic checks of the semiconductor devices in this instrument are not recommended. The best check of
semiconductor performance is actual operation of the instrument.
Weather cover/blower preventive maintenance
Periodically - Check and inspect all hoses and wire connections inside the weather covers.
Air Filter - Remove and inspect replace the filter cartridge as necessary (8 pack p/n 1A99993H09).
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