KYORITSU 5020 Instruction Manual - Manual (Page 33)

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4. Power Quality Analysis Mode (only 5020)
● Detection and RMS value calculation
Sampling the inputs at every 0.55ms only at CH1 and comparing the
Peak value (sampled crest value converted to sine RMS value) at every
10ms and preset value to detect swell, dip and short interruption in
power supply. RMS value is calculated at every 100ms.
● Recording
When swell, dip or short interruption is detected, the detected value is
recorded as Start (S) with time and date information.
In case that a input becomes close to the reference voltage by
hysteresis value, it is recorded as End (E) with time and date
information.
● Display of measured value
Average of RMS value is displayed on the LCD at every 1 sec.
(10 data)