User manual

How to...154

Axis scaling and offset

Use these tools if Auto-arrange axes (see above) does not give you the results you

want. It allows you to position channels individually on the view (unlike the global

zooming and scrolling tools, which are applied to all of the channels at the same

time).

Click the scaling button at the bottom of the axis you wish to modify, and the

axis scaling controls will appear. To adjust the offset without using the axis scaling

controls, click on the vertical axis and drag it up or down.

How is this different from scaling my data with a Custom Probe?

You can create a Custom Probe to apply scaling to the raw data. A Custom Probe

may change the scale and position of data on the graph but it has a few important

differences from the other scaling methods.

Custom Probe scaling is a permanent transformation. The scaling is applied when

the waveform is captured and cannot be changed afterwards.

The actual data values themselves are changed, so the graph axes may no longer

display the original voltage range of the device.

Custom Probe scaling can be nonlinear and so may alter the shape of the signal.

Custom Probes are useful when you want to represent the characteristics of a physical

probe or transducer that you plug into your scope device. All of the zooming, scrolling,

scaling and offset tools still apply to data that has been scaled with a Custom Probe in

exactly the same way that they would apply to the raw data.

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