AEM 3945-B Manual

A SERVICE OF

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Power Quality Analyzer Model 3945-B

49

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

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.