DI-770 Oscilloscope provides five virtual instruments in one
DI-770 Oscilloscope provides five virtual instruments in one
DI-770 Oscilloscope provides five virtual instruments in one
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<strong>DI</strong>-<strong>770</strong> and WINDAQ/Scope Manual<br />
MAX:<br />
MIN:<br />
The maximum measured value ever is displayed.<br />
The m<strong>in</strong>imum measured value ever is displayed.<br />
LOG(1/2):<br />
LOG(2/1):<br />
The result of the calculation<br />
is displayed.<br />
The result of the calculation<br />
is displayed.<br />
20 ×<br />
log<br />
measured<br />
------------------------------------------------<br />
valueCH1<br />
measured valueCH2<br />
20 × log<br />
measured<br />
------------------------------------------------<br />
valueCH2<br />
measured valueCH1<br />
Change the units of measure<br />
Normally, every type of measurement has its own unit. The voltmeter allows you to change this unit for each display<br />
separately. There are twelve predef<strong>in</strong>ed values and a user def<strong>in</strong>ed value.<br />
The selection can be made with the Units of measure pulldown. The unit which is selected, is displayed <strong>in</strong> the display.<br />
To select a user def<strong>in</strong>ed unit of measure, just type a str<strong>in</strong>g with a maximum length of <strong>five</strong> characters.<br />
Change the units per measurement unit<br />
Us<strong>in</strong>g the edit box Units per measurement unit, the number of units per selected unit can be set. In the edit box, the<br />
multiplication factor can be entered. The measured value is multiplied by the factor and displayed.<br />
This can be used if e.g. a 1:10 probe is used. To correct the read<strong>in</strong>g, enter a value 10 <strong>in</strong> the edit box.<br />
Relative measurements<br />
The voltmeter can take absolute measurements and relative measurements. When measur<strong>in</strong>g absolute, the measurements<br />
are related to the 0 level (ground). When measur<strong>in</strong>g relative, the measurements are related to a settable value.<br />
This value is subtracted from the measured value by the software. This means that before display<strong>in</strong>g the value <strong>in</strong> the<br />
display, the relative value is subtracted from the calculated value.<br />
The Voltmeter<br />
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