RCD tester used for measures earth/ground resistance using 2-, 3-, 4-pole fall-of-potential or clamp/ stakeless methods — used for DB, lightning protection and grounding verification.
SPECIFICATIONS
Earth resistance measurement 20Ω 200Ω 2000Ω
Measuring range 0.00 to 2000 Ω
Display range 0.00 to 20.99 Ω 0.0 to 209.9 Ω 0 to 2099 Ω
Accuracy*1: ±1.5%rdg±0.08 Ω*2 ±1.5%rdg±4dgt
Auxiliary earth resistance*3: <10KΩ <50kΩ <100kΩ
Comparator reference value: 10Ω 100Ω 500Ω
Earth voltage measurement
Measuring range : 0 to 300 V AC (45 to 65Hz) ±0 to ±300 V DC