User manual

PicoScope 6 User's Guide 55

6.5.1.1.4.1

Lookup-table Scaling dialog

Location:

Scaling Method dialog > Create a Look-up Table or Edit the

Lookup Table...

Purpose:

creates a look-up table to calibrate a custom probe

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.