Hi,
The new Rigel 288 will tackle this problem. Soon to be released feature will include to compare test data on the spot. Comparison is triggered by a threshold which is user configurable. In other words, only test data which has changed over a certain percentage or absolute value (whichever is greater) will be displayed. This ensures that you do not waist time looking at leakage measurements which are always below 5uA or so. The following link has more details on the 288. Don’t hesitate to contact me if you want a demo of the product;
http://www.rigelmedical.com/products/rigel_288.asp

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