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Scope Multimeter Saving and Reviewing Scope / Multimeter Data Files
8.7 Saving and Reviewing Scope / Multimeter Data Files
The following section describes the procedures used to save and review Scope/Multimeter and
Guided Component Tests data files.
8.7.1 Data Buffer
The graphing multimeter and lab scope functions have the capability to save, store and playback,
data (test signals) utilizing internal storage memory and buffer memory.
When a test function (e.g. Lab Scope > DC Volts) is selected and displays onscreen, a data buffer
automatically starts to store data in buffer memory. The data buffer runs continuously (storing
data) until the Stop icon is selected.
i The data buffer starts and runs continuously with or without an active input test signal, when a test
function is selected.
The Data Buffer Indicator can be used to visually see the amount of stored buffer data. This
graphical indicator contains a slider within a bar graph. The bar graph shows how much stored
data is in the memory buffer. The slider indicates the position of the current screen in relation to
the entire memory buffer contents.
The Data Buffer Position Counter displays a numerical value, indicating the position of the current
displayed frame of data within buffer memory.
1— Data Buffer Indicator Slider
2— Data Buffer Indicator Bar Graph
3— Data Buffer Position Counter
Figure 8-33
Buffer memory is limited to a predetermined “total” size. When buffer memory reaches it’s full
capacity, the data buffer will continue to store new data, however earlier stored data will be
removed to allow room for the new data being stored.
The most recent data is always available for review when the scope is stopped, and can be
reviewed using the toolbar controls.
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