User Manual
CHAPTER 4. MEASUREMENT SETUP 21
Figure 4.2: Measurement Timing 2
Function Description
Sync Source
Synchronization Source, the source used to determine the measure-
ment interval. May be set to voltage (U), current (I) or turned o.
Freq Filter Enable or disable the Frequency Filter.
Line Filter Enable or disable the Line Filter.
Crest Factor Set the crest factor to 3(CF3), or 6 (CF6) (See Section 4.0.1)
Update Rate
Data Update Rate: the capture interval of the voltage, current, power
and other data can be set. When the data updating rate is increased,
rapid load changes of the power system can be measured. Conversely,
when decreased, relative low-frequency signals can be measured. Val-
ues = 0.1, 0.25, 0.5, 1, 2, and 5 seconds
Figure 4.3: Other Settings Display
4.3.1 Filter
Frequency Filter It is inserted in the frequency measurement circuit and may aect frequency measurement.
It can be used for ltering high-frequency components of interference to make the measured frequency
parameter more accurate. When the frequency lter is switched on, the voltage or current of no more than
200Hz can be measured. The cuto frequency is 500Hz.