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PicoScope 6 User Guide
33
Copyright 2006 Pico Technology Limited. All rights reserved.PSW044-2.0
6.5.2.4.1 Lookup-table Scaling dialog
This dialog allows you to enter a look-up table to calibrate a custom probe. You can
get here by clicking the Create a Look-up Table button or Edit the Lookup Table...
button in the Scaling Method dialog .
Editing the Look-up Table
First, select suitable values in the Input units and Scaled units drop-down boxes.
For example, if your probe is a current clamp that outputs one millivolt per ampere
over the range -600 to +600 amperes, select Input units of millivolts and Output
units of amperes.
Next, enter some data in the scaling table. Click the first empty cell at the top of the
table and type "-600", then hit the Tab key and type "-600". When you are ready to
enter the next pair of values, press the Tab key again to start a new row. You can also
right-click on the table to obtain a more detailed menu of options, as shown in the
picture. In the example above, we have entered a slightly nonlinear response; if the
response had been linear then it would have been easier to use the linear option in
the Scaling Method Dialog .
Import/Export
Using the Import and Export buttons, you can fill the look-up table from data in a
comma-separated or tab-delimited text file, and save the look-up table to new file.
Finishing
Clicking OK or Cancel will return you to the Scaling Method dialog .
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