The GRT350 is a 4-wire earth ground resistance and resistivity tester which measures earth ground resistance from 2 to 2000 Ohm and resistivity from 0.06 to 628 ohm-m. The GRT350 supports 4-wire, 3-wire, and 2-wire testing. This tester has a large dual line LCD, automatic spike check, test hold function, auto ranging, data hold and auto power off. The GRT350 can also store and recall up to 200 test results, has over-range and low battery indications. Product is complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, user's manual and eight 1.5V AA batteries. CE certified with a CAT IV 300V safety rating
Earth Ground Resistance : 20Ω/200Ω/2000Ω Accuracy : ±(2%rdg+3d) Resolution : 0.01Ω/ 0.1Ω/1Ω Test Current / Frequency : approx. 2mA/820Hz Earth Resistivity (ρ) : 0.06 to 6.28 kΩm, 0.62 to 62.8 kΩm, 6.28 to 628 kΩm AC Earth Voltage : 0 to 300VAC Accuracy : ±(2%rdg+3d) Dimensions : 9.8 x 7.8 x 4.3" (250 x 190 x 110mm) Weight : 3.15lbs (1.43kg) - batteries included
The CMC 356 is the universal solution for testing all generations and types of protection relays. Its powerful six current sources (three-phase mode: up to 64 A / 860 VA per channel) with a great dynamic range, make the unit capable of testing even high-burden electromechanical relays with very high power demands. The CMC 356 is the first choice for applications requiring the highest versatility, amplitude and power. Commissioning engineers will particularly appreciate its ability to perform wiring and plausibility checks of current transformers, by using primary injection of high currents from the test set.
The CMC 356 is the universal solution for testing all generations and types of protection relays. Its powerful six current sources (three-phase mode: up to 64 A / 860 VA per channel) with a great dynamic range, make the unit capable of testing even high-burden electromechanical relays with very high power demands. The CMC 356 is the first choice for applications requiring the highest versatility, amplitude and power. Commissioning engineers will particularly appreciate its ability to perform wiring and plausibility checks of current transformers, by using primary injection of high currents from the test set.
The CMC 356 is the universal solution for testing all generations and types of protection relays. Its powerful six current sources (three-phase mode: up to 64 A / 860 VA per channel) with a great dynamic range, make the unit capable of testing even high-burden electromechanical relays with very high power demands. The CMC 356 is the first choice for applications requiring the highest versatility, amplitude and power. Commissioning engineers will particularly appreciate its ability to perform wiring and plausibility checks of current transformers, by using primary injection of high currents from the test set.