MagTek InSpec 9000-2005 - Manual (Page 44)

InSpec 9000-2005 Encoded Card Tester
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The same data was used to display the following two charts and statistical display, Figures 4-6,
4-7 and 4-8. In the trend chart, Figure 4-6, the minimum amplitude for each card selected is
plotted on the chart. The background zones indicate the specifications limits.
Figure 4-6. Performance Trend Chart- Amplitude