The 3291 and 3293 are clamp multimeters. The 3291 can measure 0.06A to 1000A of wide current range and the 3293 can measure 0.06mA to 1000A of leak to load. Both products can measure maximum value simultaneously and keep maximum value.
The HiTESTER 3291 and 3293 are clamp‑on field measuring instruments that combine current measurement and leak‑to‑load functionality in a single unit. The 3291 offers a wide current range, while the 3293 focuses on leak‑to‑load measurements, both featuring true‑RMS detection and a flip‑display for easy reading.
The manual lists technical specifications such as a maximum conductor size of 230 mm, current ranges up to 1000 A, voltage rating up to AC600 V, and accuracy of ±1.5 % + 5 digits. It also describes display refresh rates, battery type (CR2032) with about 10 hours of continuous operation, and compliance with safety standards (CAT II/III/IV, EN61010‑2‑032).
| Maximum conductor size | 230 mm |
|---|---|
| Current range (3291) | 0.06 A to 1000 A |
| Current range (3293) | 0.06 mA to 1000 A |
| Voltage rating | AC600 V (earth clamp) |
| Accuracy | ±1.5 % + 5 digits |
| Display refresh rate | ≈2 times/second (main), ≈4 times/second (bar graph) |
| Battery type and life | CR2032, ~10 hours continuous |
The 3291 measures current from 0.06 A up to 1000 A.
The built‑in CR2032 battery provides about 10 hours of continuous operation with no load.
The clamp can measure conductors up to 230 mm in diameter.
The main display refreshes approximately twice per second, and the bar‑graph about four times per second.