FLUKE 190-102-III CAL User Manual for the Fluke 190-102-III CAL Color ScopeMeter with traceable certificate of calibration, 100 MHz, 2 channels

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190 Series III

Users Manual

5. Use the cursor and E to select and accept Variable.

6. Use 4 to exit the menu.

A Var shows at the bottom left of the screen. Select Variable to turn off the cursors and

automatic input ranging.

7. Press

j to increase the sensitivity and k to decrease the sensitivity.

Note

Variable input sensitivity is not available in the Mathematics functions (+ - x and

Spectrum).

Noisy Waveforms

To suppress high frequency noise on waveforms, you can limit the working bandwidth to 10 kHz

or 20 MHz. This function smoothes the displayed waveform. For the same reason, it improves

triggering on the waveform.

To choose the 10 kHz bandwidth on for example input A, do the following:

1. Press A to show the INPUT A key labels.

2. Press 4 to open the INPUT A menu.

3. Use the cursor and E to highlight Bandwidth: and select 10kHz to accept the bandwidth

limitation.

Note

To suppress noise without loss of bandwidth, use the average function or turn off Display

Glitches.

Mathematic Functions +, -, x, XY-mode

You can add (+), subtract (-), or multiply (x) two waveforms. The test tool shows the mathematical

result waveform and the source waveforms. The XY-mode provides a plot with one input on the

vertical axis and the second input on the horizontal axis. The Mathematics functions perform a

point-to-point operation on the involved waveforms.

To use a Mathematics function, do the following:

1. Press

P to show the SCOPE key labels.

2. Open the WAVEFORM OPTIONS menu with 4.

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FLUKE 190-102-III CAL Color ScopeMeter with traceable certificate of calibration, 100 MHz, 2 channels