Buy a high precision earth resistance tester online. It comes with a 0 to 20k ohm measurement range, 5-inch color LCD screen, USB interface charging port, storage function and clock function, suitable for measuring ground resistance, soil resistivity, ground current and ground voltage on site.
Features
- ATO earth resistance tester is available with a 32mm clamp and 0Ω~20kΩ measure range.
- Clamp on earth resistance tester is designed for on-site measurement of ground resistance, soil resistivity, ground current, and ground voltage. It has a 2.5-inch color LCD screen. and USB interface charging port,
- storage function, and clock function, and automatically stores 500 groups.
- Digital ground resistance testers can measure grounding resistance by various measurement methods such as the clamp meter method, two-wire method, three-wire method, four-wire method, and selection method.
Specifications
Model |
ATO-ERT-2300 |
Resistance Range |
0.00Ω~20kΩ |
Soil Resistivity Range |
0Ωm~9999kΩm |
Ground Current Range |
0.000mA~20A |
Ground Voltage Range |
0.0V~600.0V |
Earth Resistance Measurement Methods |
Clamp meter method, two-wire method, three-wire method, four-wire method, selection method |
Test Frequency |
128Hz/111Hz/105Hz/94Hz (AFC automatic frequency selection) |
Display Mode |
2.5-inch color LCD screen |
Short Circuit Test Current |
AC 10mA max |
Open Circuit Test Voltage |
AC 14V max |
Electrode Spacing Range |
1m~100m |
Weight |
5.1 kg |
Clamp Size |
65mm×32mm |
Tester Size |
307mm×98mm×56mm |
Test Line |
4 Pieces (red 20m, black 20m, yellow 10m, green 10m) |
Simple Test Line |
2 Pieces (red 1.6m, black 1.6m) |
Auxiliary Ground Rod |
4*Φ9mm×230mm (935g) |
Measurement Times |
more than 5000 times (short circuit test, test once, stop for 30 seconds and test again) |
Line Voltage |
measured below AC 600V |
Data Memory |
500 groups |
Audible And Visible Alarm |
"du—du—du" for alarming, press AL to turn on/off |
Automatic Shut-Down |
Automatic shutdown after 5 minutes of power on |
Shift |
Automatically |
External Magnet/Electric Field |
< 40A/m, < 1V/m |
Resistance Test Frequency |
>1KHz, 128Hz |
Interface |
USB interface |
Accessories |
Resistance Tester: 1PCS; Test Loop:1PCS; Test Ring: 1PCS; USB Charging Cable:1PCS; Charger: 1PCS; Ground Pin: 4PCS; Test Leads: 4PCS; Simple Test Leads: 2PCS; Tool Box: 1PCS |
Range and Accuracy
Measuring Function |
Measuring Range |
Accuracy |
Resolution |
Measuring Grounding Resistance with Clamp Meter |
0.010Ω~0.099Ω |
±(1%rdg+0.05Ω) |
0.001Ω |
0.10Ω~0.99Ω |
±(1%rdg+0.05Ω) |
0.01Ω |
1.0Ω~49.9Ω |
±(1%rdg+0.5Ω) |
0.1Ω |
50.0Ω~99.5Ω |
±(2%rdg+0.5Ω) |
0.5Ω |
100Ω~199Ω |
±(5%rdg+1Ω) |
1Ω |
Two-Three-Four-Wire Method for Measuring Grounding Resistance |
0.10Ω~20.00Ω |
±2%rdg±5dgt |
0.01Ω |
20.0Ω~200.0Ω |
±2%rdg±5dgt |
0.1Ω |
200Ω~2000Ω |
±2%rdg±5dgt |
1Ω |
2.00kΩ~20.00kΩ |
±4%rdg±5dgt |
10Ω |
Selective Method for measuring grounding resistance |
0.10Ω~20.00Ω |
±2%rdg±5dgt |
0.01Ω |
20.0Ω~200.0Ω |
±2%rdg±5dgt |
0.1Ω |
200Ω~2000Ω |
±2%rdg±5dgt |
1Ω |
Soil Resistivity |
0.00Ωm~99.99Ωm |
Depends on the measurement accuracy of the R (ρ=2πaR a:1m~100m; π=3.14) |
0.01Ωm |
100.0Ωm~999.9Ωm |
0.1Ωm |
1000Ωm~9999Ωm |
1Ωm |
10.00kΩm~99.99k |
10Ωm |
100.0kΩm~999.9k |
100Ωm |
1000kΩm~9999kΩm |
π=3.14) |
1kΩm |
Ground Voltage 50Hz/60Hz |
AC 0.0~600.0V |
±2%rdg±5dgt |
0.1V |
Ground Current 50Hz/60Hz |
0.000mA~5.000mA |
±(2.5%rdg+1mA) |
0.001mA |
5.0mA~100.0mA |
±(2.5%rdg+5mA) |
0.1mA |
100mA~500mA |
±(2.5%rdg+10mA) |
1mA |
0.50A~20.00A |
±(2.5%rdg+0.5A) |
0.01A |
Note
- The additional error when rC max or rP max is ≤±5%rdg±5dgt.
- rC max: 4kΩ+100R<50kΩ, rP max: 4kΩ+100R<50kΩ
- The additional error at 2.5V interference voltage is ≤±5%rdg±5dgt.
Details
Applications
ATO provides earth resistance testers with a measurement range of 0.00Ω-300kΩ, which are widely used in ground resistance measurement and loop resistance measurement in fields such as electric power, telecommunications, meteorology, oil fields, construction, and industrial electrical equipment. When measuring the grounding system with a loop, the ground resistance tester does not need auxiliary electrodes and does not need to disconnect the grounding wire, which is safer and faster.
Tips: Why use a clamp earth resistance tester?
The clamp earth resistance meter can measure ground faults that cannot be measured by traditional methods and can be applied to occasions that cannot be measured by traditional methods. It is a major breakthrough in traditional ground resistance measurement technology and is widely used in electric power, telecommunications, meteorology, oil fields, construction and ground resistance measurement of industrial electrical equipment.