Extech Clamp-on Ground Resistance Tester
Extech Clamp-on Ground Resistance Tester simplifies ground resistance measurements
Item #: E411-2357
Manufacturer: Extech Instruments
Manufacturer Item #: 382357
Product Type: Ground Resistance Testers
Your Price $1,329.00
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) |
If you cannot open the manual, Get Adobe Reader.Extech Clamp-on Ground Resistance Tester Manual En Español
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Pros
- Easy to Use
- Well Designed
Cons
Best Uses
- Outside
Comments about Extech Instruments Extech Clamp-on Ground Resistance Tester:
The clamp on ground tester quickly provides grounding electrode resistance. The accuracy of the instrument has not been verfied by me, or compared to more traditional measurement methods.
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