Extech GRT350
4-Wire Earth Ground Resistance/Resistivity Tester
The Extech GRT350 is a 4-Wire Earth Ground Resistance and Resistivity Tester which measures earth ground resistance from 2 Ohm to 2000 Ohm and resistivity from 0.06 ohm-m to 628 ohm-m. The GRT350 supports 4-wire, 3-wire, and 2-wire testing. It has a large dual line LCD, automatic spike check, test hold function, auto ranging, data hold, and auto power off function. This tester can also store and recall up to 200 test results and 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 1.5 V AA batteries. CE certified with a CAT IV 300 V safety rating.
Specifications
| General | |
|---|---|
| Earth Ground Resistance | 20Ω/200Ω/2000Ω |
| Earth Ground Resistance Basic Accuracy | ±(2% of reading + 3 digits) |
| Earth Ground Resistance Max Resolution | 0.01Ω/0.1Ω/1Ω |
| Earth Resistivity | 0.06 to 6.28 kΩm, 0.62 to 62.8 kΩm, 6.28 to 628 kΩm |
| Earth Voltage | 0 to 300VAC |
| Earth Voltage Basic Accuracy | ±(2% of reading + 3 digits) |
| Test Current | approx. 2mA |
| Test Frequency | 820Hz |
| Additional Details | |
|---|---|
| Certifications | CE |
| Dimensions | 9.8 × 7.8 × 4.3" (250 × 190 × 110mm) |
| Power | 8 × AA (1.5V) batteries |
| Safety Category | CATIV - 300V |
| Warranty | 2 years |
| Weight | 3.15lbs (1430g) |
Resources & Support
User Manual
Extech GRT350 User Manual
Datasheet
Extech GRT350 Datasheet
Certification
Extech GRT350 Declaration of Conformity
Export Restrictions