Fluke ScopeMeter 190-502 User Manual page 34

Fluke 190 Series II
Users Manual
Variable Input Sensitivity
The variable input sensitivity allows you to adjust any input
sensitivity continuously, for example to set the amplitude
of a reference signal to exactly 6 divisions.
The input sensitivity of a range can be increased up to 2.5
times, for example between 10 mV/div and 4 mV/div in the
10 mV/div range.
To use the variable input sensitivity on for example
input A, do the following:
1 Apply the input signal
2 Perform an Auto Set (AUTO must
MANUAL
AUTO
appear at the top of the screen)
An Auto Set will turn off the variable input sensitivity. You
can now select the required input range. Keep in mind
that the sensitivity will increase when you start adjusting
the variable sensitivity (the displayed trace amplitude will
increase).
3 Display the
A
26
key labels.
INPUT A
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4
F4
5
ENTER
6
F4
At the bottom left of the screen the text A Var is
displayed.
Selecting Variable will turn off cursors and automatic input
ranging.
7 mV
RANGE
V
Variable input sensitivity is not available in the
Mathematics functions (+ - x and Spectrum).
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Open the menu.
INPUT A
Select and accept Variable.
Exit the menu.
Press mV to increase the
sensitivity, press V to decrease
the sensitivity.
Note