CHAPTER 3. FRONT PANEL OPERATION
16
Figure 3.3: Other Settings Display
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
Table 3.3: Other Set Display Fields
3.4.1 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.
Line filter
It is inserted in the voltage and current measurement circuit and has direct influence on
measurement of the voltage, current and power. When the line filter is switched on, noise and high-frequency
components from the inverter or distortion waveform can be filtered. The cutoff frequency is 500HZ.
