AEMC PowerPad 3945-B, User Manual, Page: 55 / 108

Power Quality Analyzer Model 3945-B
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The table below lists the capture threshold levels, based on the probe in use (for
the current channels) and voltage at the different percent selections.
Thresholds
100% 50% 20% 10% 5% 2% 1%
MN93 200A 100A 40A 20A 10A 4A 2A
MN193 (100A) 100A 50A 20A 10A 5A 2A 1A
MN193 (5A) [ (primary x 5) ÷ (secondary) ] x (percent x 100)
SR193 1000A 500A 200A 100A 50A 20A 10A
AmpFlex
®
193
2900A 1400A 580A 290A 140A 58A 29A
MiniFlex™ 2900A 1400A 580A 290A 140A 58A 29A
MR193 1000A 500A 200A 100A 50A 20A 10A
2999A ratio adapter 3000A 1500A 600A 300A 150A 60A 30A
1A ratio adapter 1A 0.5A 0.2A 0.1A 0.05A 0.02A 0.01A
Voltage 480V 240V 96V 48V 24V 9.6V 4.8V
Transients are detected by comparing all 256 samples on the current cycle with
their counterparts from the previous cycle for each active input channel. Should
any one sample deviate from its counterpart by the selected percentage value in
the set up, this will be considered a transient and the data will be captured.
When capture occurs, four cycles are recorded for each input. These include the
trigger cycle, the previous cycle to the trigger and the two cycles that follow the
triggered cycle. All active inputs will be captured.