Features & Applications:
Extech Clamp-on Ground Resistance Tester enables non-contact measurements of ground conductors without need for auxiliary ground spikes.
Features:
- Autoranging ground resistance measurements from 0.03ohm to 1500ohm with 0.02ohm resolution
- True RMS AC Leakage current range of 0.2mA to 15.00A with 0.001 mA maximum resolution
- 0.9"" (23mm) Jaw size for large ground rods
- Simplifies ground resistance measurements on multiple point ground systems
- Verification resistors confirm accuracy of meter
- Ground resistance measurements down to 0.03% with 0.02% maximum resolution
- Programmable Hi/Lo alarm
- Automatic self calibration when powered on
- 9999 count high contrast LCD display
- Electrical noise detection feature prevents inaccurate readings
- Data hold and continuity beeper
- Complete with 9V battery, resistance check plate and carrying case
Applications:
- Verify resistance of cellular and communication tower ground grids
- Check utility transmission
- Maintenance on electric transportation systems
- Ideal for multiple point grounding systems in sub-stations, factories and office buildings
Spec Summary:
| Specifications |
Range |
Resolution |
Accuracy (%rdg) |
|
Ground Resistance:
|
0.03 to 9.99ohm |
0.02ohm |
±(1.5% + 0.1ohm) |
| |
10.0 to 99.9ohm |
0.1ohm |
±(2.0% + 0.3ohm) |
| |
100.0 to 199.9ohm |
0.4ohm |
±(3.0% + 1.0ohm) typical |
| |
200.0 to 399.9ohm |
2ohm |
±(5.0% + 5ohm) typical |
| |
400.0 to 599.9ohm |
5ohm |
±(10% + 10ohm) typical |
| |
600.0 to 999.9ohm |
10ohm |
Not specified |
| |
1000 to 1,500ohm |
30ohm |
Not specified |
|
Leakage Current AC:
|
0.200 to 0.999mA |
0.001mA |
±(2.5% + 0.05mA) |
| |
1.000 to 9.99mA |
0.01mA |
±(2.5% + 0.05mA) |
| |
10.00 to 99.9mA |
0.1mA |
±(2.0% + 0.3mA) |
| |
100.0 to 750.0mA |
0.1mA |
±(2.5% + 3mA) |
| |
0.20 to 15.00A |
0.01A |
±(2.0% + 0.05A) |
|
Continuity:
|
Beep if less than 40ohm
(approximately) |
|
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Dimensions:
|
10.2"" x 4.4"" x 1.9""
(258 x 110 x 47mm) |
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Weight:
|
24.7oz. (700g) |
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