Pearson PRD-120 - Rent Powerline Ripple Detector

Description  The Pearson PRD-120 facilitates the measurement of power line ac ripple using a frequency-selective voltmeter, i.e., EMI receiver or spectrum analyzer. In so doing, it greatly simplifies both the manual and automated measurement of injected ripple in such standards as MIL-STD-461 CS01/CS101, RTCA/DO-160 section 18 and MIL-HDBK-704-2 through -6. The PRD-120 is a passive signal conditioner, providing dc blocking, selectable ac attenuation, and transformer isolation to allow connection of a sensitive frequency selective voltmeter across the power bus in lieu of the traditional oscilloscope. See Figures 2a and b. Note that in Figure 2b, the spectrum analyzer/EMI receiver is not powered through an isolation transformer, because the required isolation is built into the PRD-120. The spectrum analyzer/EMI receiver operates with safety ground intact, while maintaining the isolation of the test sample power return above ground. Another difference between the Figure 2a and b drawings