Agilent Technologies 54835A, 45A, 46A Loading Default Oscilloscope Settings, Loading New Software

W A R N I N G

W A R N I N G

Chapter 4: Calibrating and Adjusting

Operating Hints

Some knowledge of operating the Agilent Technologies 54835A/45A/46A oscilloscope is helpful. However, procedures are written so that little experience is necessary. The following hints will speed progress of the procedures.

When using many averages, it often takes awhile for a waveform display to stabilize after a change. When a front panel control on the oscilloscope is changed, averaging automatically restarts. When the input signal or an adjustment is changed, the oscilloscope averages new data with the old, so it takes longer for the waveform to stabilize to the new value. Press the Clear Display key while changing input signals or adjustments. Clearing the display restarts averaging, which gives a quicker indication of the result of the change.

Loading Default Oscilloscope Settings

To reset the oscilloscope to default conditions, press the Default Setup key.

Loading New Software

This oscilloscope stores its operating system code on a hard disk drive. New code is loaded into the oscilloscope by using the floppy disk drive. It is rarely necessary to reload the code. You should load the code only if prompted by a troubleshooting procedure, or if you want to load a later version of code.

To load new code, enable the graphical interface, then select Upgrade Software from the Utilities menu. You can then follow the instructions on the screen, inserting diskettes as necessary.

Calibration Procedures

The procedures start with the next paragraphs. Unless specified elsewhere, procedures must be followed in the order given. Display checks are optional and independent of other procedures.

Let the Oscilloscope Warm Up Before Adjusting

Warm up the oscilloscope for 30 minutes before starting adjustment procedures. Failure to allow warm- up may result in inaccurate calibration.

SHOCK HAZARD!

Read the Safety information at the back of this guide before performing adjustment procedures. Failure to observe safety precautions may result in electrical shock.

INJURY CAN RESULT!

Install the fan safety shield (included in the Service Kit) if you remove the oscilloscope cover. Without this shield, the oscilloscope fan blades are exposed and can cause injury.

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