Harmonic Clamp Meter

Home > Products > DC/AC Harmonic Clamp Meter > Power Harmonics and Leakage Tester
PROVA 19/21/23

Power Harmonics and Leakage Tester

Product Features
  • AC voltage (True RMS) to 600V: accuracy 0.5% of reading
  • PROVA 19/21: AC current (True RMS) to 50A: accuracy 0.5% of reading
  • PROVA 23: AC current (True RMS) to 100A: accuracy 0.5% of reading
  • PROVA 21/23: AC watt to 9999KW: accuracy 2% of reading
  • PROVA 21/23: Active (W, KW, HP), Reactive (VAR, KVAR) and Apparent (VA, KVA) power
  • PROVA 21/23: Power factor (PF), phase angle (Φ), and energy (mWH, WH, KWH)
  • PROVA 21/23: Measurement of balanced 3Φ power
  • PROVA 21/23: Measurement of balanced 3Φ phase sequence
  • PROVA 21/23: Measurement of standby power consumption for IT products
  • PROVA 19/21: Shielded Jaw immune to external interference
  • Leakage current measurement at 10μA resolution
  • Non-interrupted power and harmonic analysis
  • Better understanding of high frequency harmonics analysis (up to 5/6 KHz)
  • Harmonic analysis of V and A (1st~99th order): 1.0% basic accuracy
  • Total Harmonic Distortion (%THD-F) and Crest Factor (CF)
  • Fast peak function (39μs for 50 Hz, 33μs for 60Hz)
  • Programmable CT ratio from 1 to 250
  • Max, Min and data hold functions
  • Active power in H.P.
  • Auto power off: 30 min.
  • 30 mm diameter jaw
  • Auto range selection
Power Harmonics and Leakage Tester

Electrical Specifications: (23±5)

AC Watt (PROVA 21, 23)  (50 or 60 Hz, PF 0.6~1, CT=1, Voltage is greater than AC 4V, Current is greater than AC 1mA for mA range,

and Current is greater than AC 0.04A for A range.  Specification applies to continuous waveforms)

Range (PROVA 21: 0 to 30A)

Range (PROVA 23: 0 to 60A)

Resolution

Accuracy of Readings

0.050 – 9.999 W

0.001W

±2% ± 0.025W

10.00 – 99.99 W

0.01W

±2% ± 0.25W

100.0 - 999.9 W

0.1W

±2% ± 2.5W

1.000 – 9.999 KW

0.001 KW

±2% ± 0.025KW

10.00 – 99.99 KW

0.01 KW

±2% ± 0.25KW

100.0 – 999.9 KW

0.1 KW

±2% ± 2.5KW

1000 – 9999 KW

1 KW

±2% ± 25KW

 

Range (PROVA 21: 30 – 50A)

Range (PROVA 23: 60 – 100A)

Resolution

Accuracy

0.050 – 9.999 W

0.001W

±2% of VA ± 5dgts

10.00 – 99.99 W

0.01W

±2% of VA ± 5dgts

100.0 - 999.9 W

0.1W

±2% of VA ± 5dgts

1.000 – 9.999 KW

0.001 KW

±2% of VA ± 5dgts

10.00 – 99.99 KW

0.01 KW

±2% of VA± 5dgts

100.0 – 999.9 KW

0.1 KW

±2%of VA ± 5dgts

1000 – 9999 KW

1 KW

±2% of VA ± 5dgts

Range of CT Ratio: 1 to 250

H.P. (Horse Power)   1 H.P. = 746 W

AC Apparent Power (VA, from 0.000VA to 9999 KVA)

                                    VA = V r.m.s. x A r.m.s

AC Reactive Power (VAR, from 0.000 VAR to 9999 KVAR)

                                    VAR = √(VA2 –  W2)

AC Active Energy (mWH, WH, or KWH, from 0 mWH to 999,999 KWH)

                                    WH = W * Time (in hours)

 

AC Voltage 

 (Auto Range, True RMS, Crest Factor<4, Input Impedance 10 MΩ, Max. peak value 860VDC,

and Overload Protection AC 800V)

Range

Resolution

Accuracy of Readings (50/60Hz)

5V – 250 V

0.1 V

±0.5% ± 5dgts

250 V – 600 V

0.1 V

±0.5% ± 5dgts

 

Range

Resolution

Accuracy of Readings (45-1KHz)

5V – 250 V

0.1 V

±1.5% ± 5dgts

250 V – 600 V

0.1 V

±1.5% ± 5dgts

AC Current  (Accuracy is of Reading, Auto Range, True RMS, Crest Factor<4, CT=1,

Max. peak values 880mADC for mA range, 73.5ADC for A range, Overload Protection AC 600A)

Range

Resolution

Accuracy of Readings (50/60Hz)

0.5 – 60mA

0.01mA

±0.5% ± 5dgts

60 – 100mA

0.01mA

±0.5% ± 50dgts

100 – 600 mA

0.1 mA

±0.5% ± 5dgts

0.05 – 3 A

0.001 A

±0.5% ± 5dgts

3 – 30 A

0.01 A

±0.5% ± 5dgts

30 – 50 A (PROVA 19, 21)

0.01 A

±1.0% ± 5dgts

30 – 100 A (PROVA 23)

0.01 A

±1.0% ± 5dgts

 

Range

Resolution

Accuracy of Readings (45-1KHz)

0.5 – 60mA

0.01mA

±1.5% ± 5dgts

60 – 100mA

0.01mA

±1.5% ± 50dgts

100 – 600 mA

0.1 mA

±1.5% ± 5dgts

0.05 – 3 A

0.001 A

±1.5% ± 5dgts

3 – 30 A

0.01 A

±1.5% ± 5dgts

30 – 50 A (PROVA 19, 21)

0.01 A

±1.5% ± 5dgts

30 – 100 A (PROVA 23)

0.01 A

±1.5% ± 5dgts

 

Harmonics of AC Voltage in Percentage  (1 to 99th order, minimum voltage at 50 or 60 Hz is greater

than AC 80V. If the voltage is 0 at 50 or 60 Hz, all the percentage (%) display is 0.)

Range (PROVA 19, 21)

Resolution

Accuracy

1 – 10th

0.1 %

±1% of reading ±1%

11 – 20th

0.1 %

±5% of reading ±1%

21 – 50th

0.1 %

±15% of reading ±1%

51 - 99th

0.1 %

±35% of reading ±1%

 

Range (PROVA 23)

Resolution

Accuracy

1 – 10th

0.1 %

±0.7% of reading ±1%

11 – 20th

0.1 %

±2% of reading ±1%

21 – 50th (A range)

0.1 %

±5% of reading ±1%

21 – 50th (mA range)

0.1 %

±10% of reading ±1%

51 - 99th

0.1 %

±35% of reading ±1%

 

Harmonics of AC Voltage in Magnitude  
(1 to 99th order, minimum voltage at 50 or 60 Hz is greater than AC 80V)

Range (PROVA 19, 21)

Resolution

Accuracy

1 – 10th

0.1 V

±1% of reading ±7dgts

11 – 20th

0.1 V

±5% of reading ±7dgts

21 – 50th

0.1 V

±15% of reading ±7dgts

51 - 99th

0.1 V

±35% of reading ±7dgts

 

Range (PROVA 23)

Resolution

Accuracy

1 – 10th

0.1 V

±0.7% of reading ±7dgts

11 – 20th

0.1 V

±2% of reading ±7dgts

21 – 50th (A range)

0.1 V

±5% of reading ±7dgts

21 – 50th (mA range)

0.1 V

±10% of reading ±7dgts

51 - 99th

0.1 V

±35% of reading ±7dgts

 

Harmonics of AC Current in Percentage  
(1 to 99th order, min. current at 50 or 60 Hz is greater than 100mA for mA range, and greater than 1A for A range.  

If the current is 0 at 50 or 60 Hz, all the percentage (%) display is 0)

Range (PROVA 19, 21)

Resolution

Accuracy

1 – 10th

0.1 %

±1% of reading ±1%

11 – 20th

0.1 %

±5% of reading ±1%

21 – 50th

0.1 %

±15% of reading ±1%

51 - 99th

0.1 %

±35% of reading ±1%

 

Range (PROVA 23)

Resolution

Accuracy

1 – 10th

0.1 %

±0.7% of reading ±1%

11 – 20th

0.1 %

±2% of reading ±1%

21 – 50th (A range)

0.1 %

±5% of reading ±1%

21 – 50th (mA range)

0.1 %

±10% of reading ±1%

51 - 99th

0.1 %

±35% of reading ±1%

 

Harmonics of AC Current in Magnitude  (1 to 99th order, min. current at 50 or 60 Hz is greater than

100mA for mA range, and greater than 1A for A range)

Range

Resolution

Accuracy

1 – 10th



0.01mA /

0.1mA /

0.001A /

0.01A

reading in mA: ±1% of reading ±2mA

reading in A: ±1% of reading ±0.3A

11 – 20th

reading in mA: ±7% of reading ±2mA

reading in A: ±7% of reading ±0.3A

21 – 50th

reading in mA: ±15% of reading ±3mA

reading in A: ±15% of reading ±0.3A

51 - 99th

reading in mA: ±35% of reading ±3mA

reading in A: ±35% of reading ±0.3A

 

Power Factor (PROVA 21, 23)

(PF, ACV > 4V, AC mA > 1mA, AC A > 0.04A, Watt > 50 digits)

Range

Resolution

Accuracy

0.000 – 1.000

0.001

±0.04

 

 

Phase Angle (PROVA 21, 23)  (Φ, 50 or 60Hz)

Range

Resolution

Accuracy

-180° to 180°

0.1°

± 2°

0° to 360°

0.1°

± 2°

 

Frequency (Hz)

Range

Resolution

Accuracy of Readings

Allowed Input

mA (45 – 65Hz)

0.1Hz

± 0.5Hz

20mA to 1.2A

A (45 – 65Hz)

0.1Hz

± 0.5Hz

1A to 100A

Sensitivity (PROVA 19, 21): > 20mA for mA range, > 1A for A range, and > 50V

Sensitivity (PROVA 23): > 20mA for mA range, > 3A for A range, and > 50V

 

Total Harmonic Distortion 

(THD-F with respect to the first (fundamental) harmonics, min. value in the range from 45 to 65Hz is greater

than AC 80V, greater than 1A for A range, and greater than 100mA for mA range. Calculation is done

over 1 to 50th Harmonics. If the voltage or current is 0 in the range from 45 to 65Hz, all the percentage (%) display is 0)

Range (45~65Hz) (PROVA 19, 21)

Resolution

Accuracy

0.0 – 10.0 %

0.1%

± 2%

10.0 – 40%

0.1%

± 5% of reading ± 5%

40 – 100%

0.1%

± 10% of reading ± 10%

100 – 999.9%

0.1%

± 20% of reading

 

Range (45~65Hz) (PROVA 23)

Resolution

Accuracy

0.0 – 20.0 %

0.1%

± 2%

20.0 – 100%

0.1%

±3% of reading ± 5%

100 – 999.9%

0.1%

±10% of reading ±10%

 

Peak Value of AC Periodic Voltage (peak value > 10V) or AC Periodic Current 
(peak value > 10mA for mA range and peak value > 0.5A for A range) for continuous waveform except for square wave:

Range

Sampling Time

Accuracy of Reading

50 Hz

39 μs

± 5% ± 30 digits

60 Hz

33 μs

± 5% ± 30 digits

 

Crest Factor (C.F.) of AC Voltage (peak value > 10V) or AC Current 
(peak value > 10mA for mA range and peak value > 0.5A for A range) for continuous waveform except for square wave:

Range (45~65Hz)

Resolution

Accuracy of Readings

1.00 – 99.99

0.01

± 5% ± 30 digits


General Specifications: 

Conductor Size:

30mm (approx.)

Battery Type:

two 1.5V SUM-3

Display:

4+2+2 digits LCD

Range Selection:

Auto

Overload Indication:

OL

Power Consumption:

10 mA (approx.)

Low battery Indication:

 

Auto-Power-Off:

30 minutes after power-on

Update Time:

2 times/second (display)

No. Of Samples per Period

512 (voltage or current)

256 (power)

Temperature Coefficient (18 or 28):

0.15 x (Specified Accuracy) /

Operating Temperature:

-10°C to 50°C

Operating Humidity:

less than 85% relative

Altitude:

up to 2000M

Storage Temperature:

-20°C to 60°C

Storage Humidity:

less than 75% relative

Dimension:

210mm (L) x 62mm (W) x 35.6mm (H)

8.3" (L) x 2.5" (W) x 1.4" (H)

Weight:

200g (battery included)

Accessories:

Test leads x 1 pair,

Carrying bag x 1,

Users manual x 1,

Batteries 1.5V x 2

Option:

Alligator clips