Cleaning; Fuse Replacement - Fluke NetDAQ 2640A User Manual

2640A/2645A NetDAQ
Users Manual

Cleaning

Keep the instrument dry to avoid electrical shock to
personnel or damage to the instrument. To prevent
damage, never apply solvents to the instrument housing.
Wipe the instrument with a cloth lightly dampened with water or mild detergent.
Do not use aromatic hydrocarbons, chlorinated solvents, or methanol-based fluids.

Fuse Replacement

The instrument uses a 15/100 ampere, 250V, time delay line fuse in series with
the power supply. To replace the fuse, refer to Figure 6-1 and the following
procedure:
To avoid electrical shock, do not operate the instrument
without the cover properly installed.
1. Disconnect all rear panel cables to the instrument power, Universal Input
Module, and I/O connectors.
2. Invert the instrument on a protective surface and remove the four 1/4-inch
6-32 Phillips-head screws on the bottom of the case.
3. Turn the instrument upright and remove the two 1/2-inch 6-32 Phillips-head
screws from the rear panel bezel.
4. Remove the rear panel bezel and case assembly. Do not touch any internal
parts of the instrument!
5. Locate the fuse holder at the back of the chassis near the power input
connector. Using a non-metallic tool, carefully pry the fuse from the holder.
6. Insert the new fuse into the holder. (You must use a 15/100 ampere, 250V
time delay line fuse replacement.)
7. Reinstall the case to its original position (the front has two rubber feet).
8. Reinstall the rear panel bezel (rubber feet towards the bottom) and attach it
with the two 1/2-inch 6-32 phillips-head screws.
9. Invert the instrument on the protective surface and reinstall the four 1/4-inch
6-32 screws on the bottom securing the case.
10. Reinstall the cables removed in Step 1.
6-4
Warning
Warning
6-3.
6-4.