FAQs

Q: What’s function of THD? Which measurement version that SA2200 adopts and how to display it?

A:

Total Harmonic Distortion (THD) is used to measure waveform distortion. Method THDF - total harmonic distortion referred to fundamental component was used on SA2200 and result will be expressed as a percentage.

Q: What is the IEC61000-4-30 standard for power quality analyzer?

A:

IEC61000-4-30 published by International Electrotechnical Commission (IEC) is an international standard that specify how power quality instruments should make measurements. Also it defines the exact measurement algorithms methods for power quality parameters such as power quality voltage, flicker, unbalance, harmonic, etc.

Currently the latest version of the standard is IEC61000-4-30, Edition 3 which was published in 2015.

There are two classes defined in this standard-Class A and Class S, Suin SA2100 power quality analyzer is classified to Class S instrument, of which accuracy and performance requirements are not as strict as Class A.

Q: Does standard SA2100 include current clamps? Is the current clamp can support DC measurement?

A:

Usually the standard quotation of SA2100 contains 4pcs rogowski coils PY-3000A. To meet different measurement needs, additional 5 types current transformer clamps-ST08-5A, CTC0080-50A, CTC0130-100A, CTC1535-1000A, ETCR035AD-1000A and 3 types rogowski coils-SY-1500A, PY-5000A and SY-6000A are supplied as option for user selection. While ETCR035AD-1000A can support AC/DC measurement, other types are only available for AC measurement.

Q: Does the frequency counter SS7406 come standard with a GPIB interface?

A:

Yes, GPIB is standard interface on SS7406 and users don’t need to order it additionally.