Introducing the Fluke 43B | 1 |
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Sags & Swells
Sags and swells measures fast deviations (from one cycle to a few seconds) from the normal voltage signal, and displays current simultaneously.
The results are plotted on the screen as a graph. The graph shows the minimum and maximum values at each point of the graph.
The SAGS & SWELLS function is particularly useful to record flicker.
SAG
Transients
Transients are fast spikes on the voltage (or current) signal. Spikes may contain enough energy to damage sensitive electronic equipment.
This function detects spikes on the voltage signal and stores a picture of the signal in memory. A transient is detected when it crosses an envelope around the voltage waveform. The width of the envelope can be set manually.
DETECTED | NOT DETECTED | DETECTED |
Inrush Current
Inrush currents are surge currents which occur, for example, when a large motor is started.
This function shows the current signal at the moment of the surge. If the current exceeds a specified level, the signal appears as a gray band on the display formed by the
Use INRUSH CURRENT to look for inrush currents or other surge currents. Measure the peak current and duration of the surge current.
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