5730A
Getting Started Manual
12
Cooling Considerations
Caution
Damage caused by overheating can occur if the area around the
air intake is restricted, the intake air is too warm, or the air filter
becomes clogged.
Adhere to these rules to lengthen the life of the 5730A Calibrator and enhance its
performance:
• The area around the air filter must be at least 3 inches from nearby walls or rack
enclosures.
• The exhaust perforations on the sides of the Calibrator must be clear of obstructions.
• The air that enters the Calibrator must be room temperature. Make sure that exhaust
from another instrument is not directed into the fan inlet.
• Clean the air filter every 30 days or more frequently if the Calibrator is operated in a
dusty environment. Instructions for cleaning the air filter are later in this manual.
Fuse Replacement
Access the fuse from the rear panel. The fuse rating label below the fuse holder shows the
correct replacement fuse ratings for each operating voltage.
Warning
To prevent possible electrical shock, fire, or personal injury:
• Turn the Product off and remove the mains power cord.
Stop for two minutes to let the power assemblies discharge
before you open the fuse door.
• Replace a blown fuse with exact replacement only for
continued protection against arc flash.
• Use only specified replacement fuses, see Table 4.
To access the fuse, refer to Figure 1:
1. Disconnect the mains power cord.
2. With a standard screwdriver, release the fuse holder door.
3. Pull out the fuse holder.
4. If necessary, replace the fuse.
5. Reinsert the fuse holder.
6. Close the fuse holder door.
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