Single-Phase Apparent Power; Single-Phase Reactive Power; Power Factor; Harmonics Measurement - Mastech MS2225A Operation Manual

Minimum input current: 1 mA, and minimum input
voltage: 1 V.

3.2.12 Single-phase apparent power

Range
Resolution
3VA 0.01VA
100VA 0.1VA
4000VA 1VA
10kVA 0.01kVA
100kVA 0.1kVA
750kVA 1kVA
Minimum input current: 1 mA, and minimum input
voltage: 1 V.

3.2.13 Single-phase reactive power

Range
Resolution
3W 0.01W
100W 0.1W
4000W 1W
10kW 0.01kW
100kW 0.1kW
750kW 1kW
Minimum input current: 1 mA, and minimum input
voltage: 1 V.
Accuracy
±(3.0% rdg+ 5 dgt)
Accuracy
±(3.0% rdg+ 5 dgt)
18

3.2.14 Power factor

Range
Resolution
0.3 ~ 1 capacitive 0.001
0.3 ~ 1 inductive 0.001
Minimum input current: 1 mA, and minimum input
voltage: 1 V.

3.2.15 Harmonics measurement

Range Accuracy of harmonic electrical level
±(3.0% rdg+ 10 dgt)
1
±(3.5% rdg+ +10 dgt)
2-6
±(4.5% rdg+ 10 dgt)
7-8
±(5.0% rdg+ 10 dgt)
9-10
±(7.0% rdg+ 10 dgt)
11-15
±(10.0% rdg+ 10 dgt)
16-20
Minimum input current: 1 mA, and minimum input
voltage: 1 V.

4. Operation Guide

4.1 Reading holding

1) During the measurement, if the reading shall be held,
short-press the "HOLD/B.L" key to lock the display
value of the display, and short-press the "HOLD/B.L"
key to unlock the kept reading.
Accuracy
±(3.0% rdg+ 5 dgt)
19