|
General
Information
|
| Manufacturer |
Extech
|
| Manufacturer Part Number
|
382357
|
| Product Name |
Clamp-On
Ground Resistance Tester
|
| UPC Code
|
793950383575
|
|
Features
|
- Ground resistance
measurements down to 0.025 Ohms with 0.002
Ohms maximum resolution
- True RMS AC Leakage
current range of 0.2mA to 30A with 1.000mA maximum
resolution
- Programmable
Datalogging with 116 data points
- Programmable Hi/Lo
Alarm
- Jaw Size for Large
Ground Rods 0.9 in.
- Simplifies ground
resistance measurements on multiple point ground
systems
- Verification resistors
confirm accuracy of meter
- 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
|
|
Specifications
|
| Applications |
Verify
resistance of cellular and communication tower ground
grids
Check utility transmission systems and grounding rods
Maintenance on electric transportation systems
Ideal for grounding systems in sub-stations, factories
and office buildings
|
| Ground Resistance |
Range |
Resolution |
Accuracy (percent rdg) |
0.025 to 0.25 ohm
|
0.002 ohm
|
More or less (1.5 percent + 0.05
) |
0.250 to 1.000 ohm
|
0.02 ohm
|
More or less (1.5 percent + 0.05
) |
1.001 to 9.999 ohm
|
0.02 ohm
|
More or less (1.5 percent + 0.1
) |
10.00 to 50.00 ohm
|
0.04 ohm
|
More or less (1.5 percent + 0.1
) |
50.01 to 99.99 ohm
|
0.04 ohm
|
More or less (1.5 percent + 0.05
) |
100.0 to 200.0 ohm
|
0.4 ohm
|
More or less (1.5 percent + 0.05
) |
200.1 to 400.0 ohm
|
2 ohm
|
More or less (5 percent + 5 ) |
400.0 to 600.0 ohm
|
5 ohm
|
More or less (10 percent + 10 ) |
600.1 to 1500 ohm
|
20 ohm
|
More or less 20 percent |
| AC Leakage Current (Trms) |
0.200 to 1.000mA |
0.001mA |
More or less (2.0 percent more or less
0.05mA) |
| 1.00 to 10.00mA |
0.01mA |
More or less (2.0 percent more
or less 0.03mA) |
| 10.0 to 100.0mA |
0.1mA |
More or less (2.0 percent more
or less 0.3mA) |
| 100 to 1000mA |
0.1mA |
More or less (2.0 percent more
or less 0.3mA) |
| 0.20 to 4.00A |
0.01A |
More or less (2.0 percent more
or less 0.03A) |
| 4.00 to 30.00A |
0.01A |
More or less (2.0 percent more
or less 0.03A) |
| Resistance Test Frequency |
1.667kHz |
| Continuity |
Beep if less than 40ohm
(approximately) |
| Dimensions |
10.2 x 4.4 x 1.9 in.
|
| Weight |
3 pounds
|
