Dataman 520 Series - Manual (Page 69)

DATAMAN oscilloscope
User’s Guide
6. Special functions
6.1. 80% function (80%)
The horizontal cursors’ positions are affected as follows:
Lower horizontal cursor is moved upwards by 10% of the distance between cursors
and the upper one is moved downwards by the same 10%.
6.2. Channel difference function (A-B)
The function result depends on the reference cursor state:
1. Reference cursor active: this function calculates the difference between channel A
and channel B, where the reference cursor level is considered to be zero. The result of
the zero value is displayed on the reference cursor position.
2. Reference cursor inactive: this function calculates the difference between channel
A and channel B, where the 0V level is considered to be zero. The result of the zero
value is displayed in the middle of the screen (between the fourth and fifth divisions).
6.3. Channel add function (A+B)
The function result depends on the reference cursor state:
1. Reference cursor active: this function adds channel A and channel B, where the
reference cursor level is considered to be zero. The result of the zero value is
displayed on the reference cursor position.
2. Reference cursor inactive: this function adds channel A and channel B, where the
0V level is considered to be zero. The result of the zero value is displayed in the
middle of the screen (between the fourth and fifth divisions).
6.4. Channel A inversion (-A)
Function calculates the inversion of channel A (with no respect to 0V).
6.5. Channel B inversion (-B)
Function calculates the inversion of channel B (with no respect to 0V).
6.6. Channel A voltage inversion (-VA)
Function calculates the channel A inversion, where the reference cursor position is
considered as a zero value (reference cursor on) or the 0V is considered as a zero
value (reference cursor off).
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