Description
The PROVA-A1/PROVA-A3 is a versatile DC/AC clamp meter designed for precise measurement of current, voltage, resistance, capacitance, and temperature. It supports a wide range of AC/DC currents (DC 0–400A, AC 0–400A) and voltages (DC 0–600V, AC 0–600V) with high accuracy. The meter also features true RMS AC measurement, low-pass filtering for variable frequency drives, and dual display modes for detailed readings in challenging environments.
This clamp meter provides temperature measurement via K-type thermocouples, making it suitable for electrical and HVAC applications. It includes peak, max/min, and delta functions for both voltage and current, allowing users to capture transient events effectively. The device is compact, lightweight, and includes a backlit display, which ensures visibility in low-light areas. Additionally, it comes with auto-ranging and auto power-off functions, conserving battery life while maintaining safety standards.
Specifications
GENERAL SPECIFICATION:
| Parameter |
Specification |
| Use Environment |
Indoor Use |
| Maximum Conductor Size |
Ø 25 mm (approx.) |
| Battery Type |
2 × 1.5 V SUM-3 (equivalent to AA size) |
| Display |
6000 counts |
| Range Selection |
Auto and Manual |
| Overload Indication |
OL |
| Low Battery Indication |
Yes |
| Power Consumption |
Approx. 17 mA |
| Sampling Rate |
2 times/sec |
| Auto Power Off |
30 minutes |
| Operating Temperature |
0°C to 50°C |
| Operating Humidity |
Less than 85% RH (non-condensing) |
| Maximum Altitude |
Up to 2000 m |
| Storage Temperature |
-20°C to 60°C |
| Storage Humidity |
Less than 75% RH (non-condensing) |
| Dimensions (L × W × H) |
190 × 66 × 36 mm
(7.5″ × 2.6″ × 1.45″) |
| Weight |
250 g (including batteries) |
| Included Accessories |
• Carrying bag × 1
• User manual × 1
• 1.5 V batteries × 2
• Test leads × 1 pair
• K-type thermocouple × 1
• Adapter (for capacitance and K-type thermocouple) × 1 |
Electrical Specifications: (23℃±5℃)
DC Current
| Range |
Resolution |
Accuracy |
Overload Protection |
| 60 A |
10mA |
±1.5%±2dgts |
DC 400A |
| 0-150 A |
100mA |
±1.5%±2dgts |
| 150-300 A |
100mA |
±2.2%±2dgts |
| 300-400 A |
100mA |
±4%±2dgts |
DCA Peak MAX ±400A Accuracy + (±2%±50dgts)
AC Current (A1: True RMS, A3: Average Sensing)
| Range |
Resolution |
Accuracy |
Overload Protection |
| 50/60 Hz |
40 – 500Hz |
| 60A |
10mA |
±1.5%±3dgts |
±2.0%±4dgts |
AC 400A |
| 0-150A |
100mA |
±1.5%±3dgts |
±2.0%±4dgts |
| 150-300A |
100mA |
±2.2%±3dgts |
±2.5%±4dgts |
| 300-400A |
100mA |
4%±3dgts |
5%±4dgts |
ACA Peak MAX ±400A Accuracy + (2%±50dgts)
LPF @1KHz -3db
DC Voltage (Overload Protection 600V)
| Range |
Resolution |
Accuracy |
Input Impedance |
| 60V |
10 mV |
±1.5%±3dgts |
10MΩ |
| 600V |
100 mV |
DCV Peak MAX ±600V Accuracy + (±2%±50dgts)
AC Voltage (A1: True RMS, A3: Average Sensing) (Input Impedance 10 MΩ)
| Range |
Resolution |
Accuracy |
Overload Protection |
| 50/60 Hz |
40 – 1KHz |
| 60V |
10mV |
±1.5%±5dgts |
±2.0%±5dgts |
AC 600V |
| 600V |
100mV |
ACV Peak MAX ±850V Accuracy + (±2%±50dgts)
LPF @1KHz -3db
Continuity (Open voltage 0.4V, Overload protection AC 600V)
| Range |
Resolution |
Accuracy |
Beeping |
| 60-600Ω |
0.1Ω |
±1.0%±2dgts |
<30.0Ω (approx.) |
Resistance (Ω) (Open voltage 0.4V)
| Range |
Resolution |
Accuracy |
Overload Protection |
| 600Ω |
0.1Ω |
±1.5%±2dgts |
AC 600V |
| 6KΩ |
1Ω |
| 60KΩ |
10Ω |
| 600KΩ |
100Ω |
Frequency (auto range)
| Range (Hz) |
Resolution (Hz) |
Accuracy |
Sensi-tivity |
OverloadProtection |
| 4-99.99 |
0.01 |
±0.5%±0.02 |
V:3V/10V A:1A/5A |
AC 600V
AC400A |
| 100.0~999.9 |
0.1 |
±0.5%±0.2 |
V:2V/10V A:1A/5A |
| 1.000K-9.999K |
10 |
±0.5%±20 |
V:2V/10V A:1A/5A |
| 10.00K-99.99K |
1.2K |
±0.5%±2.4K |
V:2V/10V A:1A/5A |
| 100.0K-200.0K |
5K |
±0.5%±10K |
V:2V/10V A:1A/5A |
Temperature (for using K-Type thermocouples, °C or °F )
| Range |
Resolution |
Accuracy |
Overload Protection |
| -40 – 0 °C |
0.1 °C |
±2.0%±2 °C |
AC 300V |
| 0 – 400 °C |
0.1 °C |
±0.5%±2 °C |
| -40 – 32 °F |
0.1 °F |
±2%±3.6 °F |
| 32 – 752 °F |
0.1 °F |
±0.5%±3.6°F |
Diode Test
| Range |
Resolution |
Accuracy |
Overload Protection |
| 0 – 1.999V |
0.001V |
±2.5%±5dgts |
AC 600V |
Capacitance
| Range |
Resolution |
Accuracy |
Overload Protection |
| 600nF |
0.1nF |
±2.0%±0.2 nF |
AC 600V |
| 6μF |
1nF |
±2.0%±0.02μF |
| 60μF |
10nF |
±2.0%±0.02μF |
| 600μF |
100nF |
±2.0%±0.2μF |
| 6000μF |
1μF |
±2.5%±5μF |
