Description
The TES PROVA A9+ EV Clamp Meter is purpose-built for electric vehicle servicing, high-current diagnostics, and industrial electrical maintenance. With the ability to measure both low-level and high current up to 1000A, it provides technicians with the flexibility needed for modern EV systems and power distribution environments. Its True RMS capability ensures accurate readings even on distorted waveforms, while the one-touch zero (Δ) function simplifies DC current measurements.
Engineered for efficiency in tight electrical panels, the meter features compact 25 mm jaws, a fast 30 Hz bar graph for transient monitoring, and non-contact voltage (NCV) detection for quick safety checks. The built-in Low Pass Filter (LPF) helps eliminate high-frequency noise when measuring motor drives and inverter outputs. Additional conveniences such as data hold, backlight with auto-off, and audible auto-power-off warning make the TES PROVA A9+ EV Clamp Meter a reliable companion for field technicians working in crowded switch boxes or cable areas.
Specifications
General Specifications
| Parameter |
Specification |
| Use Environment |
Indoor use |
| Conductor Size (Max) |
Ø 25 mm (0.98″) approx. |
| Battery Type |
2 × 1.5 V LR03 (AAA) |
| Display |
3¾ digits LCD + 20-segment bar graph |
| Range Selection |
Manual |
| Overload Indication |
OL |
| Power Consumption |
≈ 22 mA (backlight off) |
| Sampling Rate |
3 times/sec (digits), 30 times/sec (bar graph) |
| Operating Temperature |
-10°C to 50°C |
| Operating Humidity |
< 85% RH |
| Storage Temperature |
-20°C to 60°C |
| Storage Humidity |
< 75% RH |
| Altitude |
Up to 2000 m |
| Dimensions |
152 × 66 × 36 mm (6.0″ × 2.6″ × 1.4″) |
| Weight |
190 g (including batteries) |
| Accessories Included |
Carrying bag × 1, User manual × 1, 1.5 V AAA batteries × 2 |
Clamp Meter Electrical Specifications
(23°C ± 5°C, Accuracy as % of reading, conductor placed at the center of jaws)
DC Current
| Range |
Resolution |
Accuracy |
Overload Protection |
| 4 A |
1 mA |
±1.5% ± 3 dgts |
DC 1000 A |
| 40 A |
10 mA |
±1.5% ± 3 dgts |
| 400 A |
100 mA |
±1.5% ± 3 dgts |
| 0–900 A (1000 A) |
1 A |
±2.0% ± 3 dgts |
| 900–1000 A (1000 A) |
1 A |
±2.0% ± 3 dgts |
AC Current (True RMS, Crest Factor ≤ 3)
| Range |
Resolution |
Accuracy (50/60 Hz) |
Accuracy (40–400 Hz) |
Overload Protection |
| 4 A |
1 mA |
±1.5% ± 3 dgts |
±2.0% ± 4 dgts |
AC 1000 A |
| 40 A |
10 mA |
±1.5% ± 3 dgts |
±2.0% ± 4 dgts |
| 400 A |
100 mA |
±1.5% ± 3 dgts |
±2.0% ± 4 dgts |
| 0–900 A (1000 A) |
1 A |
±2.0% ± 3 dgts |
±2.5% ± 4 dgts |
| 900–1000 A (1000 A) |
1 A |
±2.0% ± 3 dgts |
±2.5% ± 4 dgts |
¹ Add 2% when C.F. ≥ 2
Frequency (Auto range, periodic and zero crossing signal)
| Range |
Frequency Range (Hz) |
Resolution (Hz) |
Sensitivity (A) |
Accuracy |
| 4 A |
1 – 100 |
0.1 |
0.2 |
±0.5% ± 2 dgts |
| 4 A |
10 – 4 K |
0.1 / 1 |
0.08 |
±0.5% ± 2 dgts |
| 4 A |
4 K – 40 K |
1 / 10 |
0.2 |
±0.5% ± 2 dgts |
| 40 A |
1 – 100 |
0.1 |
1.5 |
±0.5% ± 2 dgts |
| 40 A |
10 – 4 K |
0.1 / 1 |
0.8 |
±0.5% ± 2 dgts |
| 400 A |
2 – 4 K |
0.1 / 1 |
4 |
±0.5% ± 2 dgts |
| 1000 A |
1 – 4 K |
0.1 / 1 |
40 |
±0.5% ± 2 dgts |
Overload protection: All ranges AC 1000 A
In-Rush Current (AC, starting from 0 A, Integration Time 100 ms)
| Range |
Trigger Current (threshold) |
| 4 A |
0.2 A |
| 40 A |
2 A |
| 400 A |
20 A |
| 1000 A |
200 A |
AC Low Pass Filter (LPF, Cut-off frequency ≈ 1 kHz (-3 dB))
| Range |
Resolution (A) |
Accuracy (50/60 Hz) |
| 4 A |
0.001 |
±3% ± 5 dgts |
| 40 A |
0.01 |
±3% ± 5 dgts |
| 400 A |
0.1 |
±3% ± 5 dgts |
| 0–900 A (1000 A) |
1 |
±4% ± 5 dgts |
| 900–1000 A (1000 A) |
1 |
±4% ± 5 dgts |
