Fluke 1621 is a basic earth ground tester from Fluke. It can perform 3-pole fall-of-potential earth testing and 2-pole resistance measurements. It is a small, rugged, and easy-to-use instrument.
The Fluke 1621 is an easy‑to‑use earth ground tester designed for electrical contractors, utility test engineers, and ground specialists. It offers both 3‑pole Fall‑of‑Potential and 2‑pole resistance measurements, a rugged holster, and a large backlit LCD display for field use.
The manual includes detailed technical specifications such as measuring functions, temperature performance, safety ratings, dimensions, and ordering information. It also outlines battery requirements, measurement accuracy, and optional accessories for extended use.
| Measuring functions | 3‑pole earth ground resistance, 2‑pole AC resistance of a conductor |
|---|---|
| Battery | One 9 V alkaline (LR61) |
| Dimensions | 113 mm × 54 mm × 216 mm (including holster) |
| Weight | 850 g (including standard accessories) |
| Working temperature range | -10 °C to +50 °C |
| Safety rating | IEC/EN 61010‑1, 600 V CAT II, pollution degree 2 |
It uses one 9 V alkaline (LR61) battery.
The device can perform two measurements per second.
It operates from –10 °C to +50 °C (working range).
It complies with IEC/EN 61010‑1, 600 V CAT II, pollution degree 2.