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PROVA-21/PROVA-23 Power Harmonics and Leakage Tester
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
  • 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

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)
RangeResolutionAccuracy of Readings (50/60Hz)
5V – 250 V0.1 V±0.5% ± 5dgts
250 V – 600 V0.1 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)

RangeResolutionAccuracy of Readings (50/60Hz)
0.5 – 60mA0.01mA±0.5% ± 5dgts
60 – 100mA0.01mA±0.5% ± 50dgts
100 – 600 mA0.1 mA±0.5% ± 5dgts
0.05 – 3 A0.001 A±0.5% ± 5dgts
3 – 30 A0.01 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
 
RangeResolutionAccuracy of Readings (45-1KHz)
0.5 – 60mA0.01mA±1.5% ± 5dgts
60 – 100mA0.01mA±1.5% ± 50dgts
100 – 600 mA0.1 mA±1.5% ± 5dgts
0.05 – 3 A0.001 A±1.5% ± 5dgts
3 – 30 A0.01 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)ResolutionAccuracy
1 – 10th0.1 %±1% of reading ±1%
11 – 20th0.1 %±5% of reading ±1%
21 – 50th0.1 %±15% of reading ±1%
51 - 99th0.1 %±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)ResolutionAccuracy
1 – 10th0.1 V±0.7% of reading ±7dgts
11 – 20th0.1 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 - 99th0.1 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)ResolutionAccuracy
1 – 10th0.1 %±1% of reading ±1%
11 – 20th0.1 %±5% of reading ±1%
21 – 50th0.1 %±15% of reading ±1%
51 - 99th0.1 %±35% of reading ±1%
 
Range (PROVA 23)ResolutionAccuracy
1 – 10th0.1 %±0.7% of reading ±1%
11 – 20th0.1 %±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 - 99th0.1 %±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)

RangeResolutionAccuracy
1 – 10th



0.01mA /

0.1mA /

0.001A /

0.01A

reading in mA: ±1% of reading ±2mAreading in A: ±1% of reading ±0.3A
11 – 20threading in mA: ±7% of reading ±2mAreading in A: ±7% of reading ±0.3A
21 – 50threading in mA: ±15% of reading ±3mAreading in A: ±15% of reading ±0.3A
51 - 99threading in mA: ±35% of reading ±3mAreading 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)ResolutionAccuracy of Readings
1.00 – 99.990.01± 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
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Shanghai Zhongxuan Electronics Co.,Ltd.
TEL:86-21-51087628
WeChat：13482459793
E-mail：tes5200@126.com