Hioki DT4282 - Removing the Harmonic Components of the Inverter (FILTER)

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Removing the Harmonic Components of the Inverter (FILTER)
4.4 Removing the Harmonic
Components of the Inverter
(FILTER)
WARNING
To prevent electric shock, before setting the lter
function, conrm if there is a voltage or not with the
lter function disabled (OFF).
Remove the harmonic components when measuring the inverter
output.
This function can be used when measuring the AC voltage or
AC+DC voltage. The cut-off frequency is 630 Hz.
抵抗
FILTERREAD
MEM
COPY: MEAS_DCAdBm インピーダンス変更導通ショート交流電流 ( クランプ入力 )
0adj 後オートホールドマニュアルレンジクランプ（レンジ設定）
Press for at least 1 second.
( lights up
.
)
To cancel the state, press it for at least 1
second again.
(
goes off.)
Only 600V/1000V range.
When the measurement function is switched using the rotary
switch or SHIFT, the lter function is canceled.
When measuring voltage with a 400 Hz
fundamental frequency (such as that on an
aircraft), be aware that the FILTER function
may cause attenuation and the indicated
voltage may be 20% lower than the actual
voltage.
The characteristics of the FILTER function
(low pass lter) are shown in the graph.
-40dB
-30dB
-20dB
-10dB
0dB
10Hz 100Hz 1000Hz 10000Hz
HIOKI DT4281A981-08