Hioki PW3336-01, Инструкция по эксплуатации

Страница: 63 / 206

3.2 Configuring Settings
57
In averaging operation, the number of averaging iterations for measured values is set, and averaged data is displayed.
Used when measured values fluctuate, causing excessive variation in the display, this setting provides a way to reduce
variation in display values.
The instrument uses simple averaging to average measured values. The display update interval varies with the number of
averaging iterations setting.
Number of averaging iterations and display update interval
Parameters that are averaged
The five parameters of voltage, current, active power, apparent power, and reactive power are averaged,
while the power factor and phase angle are calculated form averaged data.
Parameters that are not averaged
Voltage frequency, current frequency, current integration, active power integration, integration time, voltage
waveform peak value, current waveform peak value, efficiency, voltage crest factor, current crest factor, time
average current, time average active power, voltage ripple rate, current ripple rate, all harmonic measurement
parameters
Example: Set the number of average iterations to 2
3.2.8 Displaying Measured Values as an Average
(AVG: Averaging)
Xk: Measured value every 200 ms (instrument display update rate)
n: Number of averaging iterations
Average value =
n
Xk
n
k
∑
=
1
Number of averaging iterations 1 (OFF) 2 5 10 25 50 100
Display update interval 200 msec. 400 msec. 1 sec. 2 sec. 5 sec. 10 sec. 20 sec.
1
Press
.
2
Press to display the setting
screen shown to the left.
3
Press or until the number in
the area flashes.