210 Cooling

2-11. VENTILATION REQUIREMENTS.

2-12. The Model 140A uses a forced-air cooling system to maintain reasonable operating temperatures within the cabinet. The air intake and filter are located on the rear of the instrument. When installing the Model 140A, choose a location that provides at least three inches of clearance around rear and sides of instrument.

2-13. AIR FILTER.

2-14. The filter should be cleaned periodically to ensure proper cooling. After cleaning, the air filter, located on the rear of the instrument, should be coated with a filter adhesive such as Filter Coat No. 3 from Research Products Co. Refer to Paragraph 5-32 for cleaning procedures.

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