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PROVA 21 User Manual
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Power Harmonics and Leakage Tester
Model 21/23
Leakage and Harmonics Tester
Model 19
Users Manual
3
3
m
ERR
AUTO-POWER
-OFF
Ture RMS
PROVA INSTRUMENTS INC.
2
Table of Contents
Table of Contents
3
Features
4
Model
4
Panel Description
5
Operating Instructions
8
III.1. Measurement of AC Ma and a
8
III.1.1. True RMS Value of AC Current
9
III.1.2. HOLD, MAX, MIN and PEAK of AC Current
10
III.1.3. Harmonics of AC Current in Magnitude (Ma or A)
11
III.1.4. Harmonics of AC Current in Percentage (%)
11
III.1.5. Total Harmonic Distortion (% THD-F)
12
III.1.6. Crest Factor (C.F.)
13
III.1.7 Frequency of AC Current
13
III.2 Measurement of AC Voltage
14
III.2.1. True RMS Value of AC Voltage
15
III.2.2. HOLD, MAX, MIN and PEAK Value of AC Voltage
15
III.2.3. Harmonics of AC Voltage in Magnitude (V)
16
III.2.4. Harmonics of AC Voltage in Percentage (%)
16
III.2.5. Total Harmonic Distortion (% THD-F)
17
III.2.6. Crest Factor (C.F.)
18
III.2.7 Frequency of AC Voltage
18
III.3 Measurement of Single Phase AC Power Quality (21, 23)
19
III.3.1 Single Phase AC Watt
20
III.3.2. Apparent Power (VA, KVA) and Reactive Power (VAR, KVAR)
20
III.3.3. Power Factor (PF), and Phase Angle (Φ)
21
III.3.4. Horse Power (H.P.)
22
III.3.5. Energy (Mwh, WH, or KWH)
22
III.4 Measurement of the Balanced 3 Phase AC Power Quality (21, 23)
23
III.5 Measurement of the Balanced 3 Phase Sequence (21, 23)
24
Set the Ct Ratio
25
Disable Auto-Power-Off
25
Specifications (23°C±5°C)
26
Model
26
Battery Replacement
34
Maintenance & Cleaning
35
VIII. Maintenance & Cleaning
35
5
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PROVA 21 Specifications
General
Continuity
Yes
Diode Test
Yes
Input Impedance
10MΩ
Power Supply
9V battery
Display
LCD
Resolution (Voltage)
0.1mV
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