Service Information; Cooling Considerations; Replacing The Fuse - Fluke 5080A Getting Started Manual

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Service Information

Each Calibrator is warranted to the original purchaser for a period of one year beginning
on the date received. The warranty is located at the front of this manual.
Factory-authorized service and technical advice for the Calibrator is available at Fluke
Service Centers. A complete list of service centers is available at www.fluke.com.
Servicing described in this manual is to be done by qualified
service personnel only. To avoid electrical shock, do not
service the Calibrator unless you are qualified to do so.

Cooling Considerations

To avoid risk of injury, never operate or power the Calibrator
without the fan filter in place.
Damage caused by overheating may occur if the area around
the air intake or exhaust is restricted, the intake air is too warm,
or the air filter becomes clogged.
Baffles direct cooling air from the fan through the chassis to dissipate heat during
operation. The accuracy and dependability of all internal parts of the Calibrator are
enhanced by maintaining the coolest possible internal temperature. You can lengthen the
life of the Calibrator and enhance its performance by observing the following rules:
•
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 entering the instrument must be at room temperature. Make sure the exhaust
air 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. (See "How to Clean the Air Filter" in this manual for instructions
on cleaning the air filter.)

Replacing the Fuse

To prevent possible damage to the instrument, verify the
correct fuse is installed for the selected line voltage setting
100 V and 120 V, use 5.0 A/250 V time delay (slow blow); 220 V
and 240 V, use 2.5 A/250 V time delay (slow blow).
The line power fuse is accessible on the rear panel. The fuse rating is 5 A/250 V slow
blow for the 100 V/120 V line voltage setting; 2.5 A/250 V slow blow for the 220 V/240
V line voltage setting. Additional user replaceable fuses are discussed in "How to
Replace the Current Fuses" later in this manual.
To check or replace the fuse, refer to Figure 1 and proceed as follows:
1. Disconnect line power.
2. Open the fuse compartment by inserting a screwdriver blade in the tab located at the
left side of the compartment and gently pry until it can be removed with the fingers.
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Calibrator
Service Information
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