Measurement
Conditions
Copyright © Itech Electronics Co., Ltd.
11
2.3 Setting of Filter and Crest Factor
Operation steps
1. Select
Menu > SET UP > OTHER SET
and enter the OTHER configuration
page.
2. Press
to select the parameter to be configured (blue font background),
and then press the soft key corresponding to the parameter on the right to set
the required value, as shown in the following diagram.
Character
Function description
Sync Source Select the synchronization source: U/I/OFF. The overall
interval of the signal voltage, current or data updating cycle
can be selected as the synchronization source for
measurement.
Freq Filter
Set the status of the frequency filter. When “ON” is selected,
the frequency filter is turned on. When “OFF” is selected, the
frequency filter is turned off.
Line Filter
Set the status of theline filter. When “ON” is selected, the line
filter is turned on. When “OFF” is selected, the line filter is
turned off.
Crest Factor
Set the crest factor: CF3/CF6
Update Rate Data Updating Rate Setting key: when this key is pressed, the
capture interval of the voltage, current, power and other data,
i.e. data updating rate, can be set. When the data updating
rate is increased, rapid load changes of the power system can
be obtained. When the data updating rate is decreased,
relative low-frequency signals can be measured. Options of
the data updating rate: 0.1s/0.25s/0.5s/1s/2s/5s
3. Press the
Enter
key to save the settings.
Filter
Frequency filter: it is inserted in the frequency measurement circuit and may
affect frequency measurement. It can be used for filtering high-frequency
components of interference to make the measured frequency parameter more
accurate. When the frequency filter is switched on, the voltage or current of no
more than 200Hz can be measured. The cutoff frequency is 500HZ.
