40A AC Clamp Ground Resistance Tester , Antiinterference Earth Resistance Clamp Meter
Clamp Ground Resistance Tester
Model: GRT-100
The GRT-100 is a new generation of landless pile test method of ground resistance meter. It adopted a new generation of black screen LCD backlit display and microprocessor technology, Ω+A synchronous display, convenient and quick measurement of ground resistance by way of induction, in measuring circuit grounding system, does not need to disconnect the ground down lead, does not need auxiliary electrodes, security quickly. It is widely used in telecommunication, electric power, meteorology, computer room, oil field, power distribution line, tower transmission line, gas station, factory grounding network, lightning rod and so on.
The Clamp Ground Resistance Tester GRT-100 is controlled by a microprocessor and can accurately measure the ground resistance, leakage current, and ground voltage. It uses fast filtering technology to minimize interference. 500 groups of test data can be stored at the same time, and the data can be monitored online by monitoring software, or uploaded to PC.
Main Features
1) Resistance Range: 0.01Ω-1500Ω
2) Current Range: 0.00mA-40.0A
3) Voltage Range: 0.0V~100V
4) Ω+A same screen display
5) Fully isolated USB technology, safe and reliable
6) Real-time clock function
7) Ground voltage measurement function, safer test
8) Quick self-test function without waiting
9) Adopting fast filtering technology, strong anti-interference ability
10) New design and long life clamp head
11) 500 test data storage
Technical Data
| Function | Ground resistance test, loop resistance test, leakage current test, ground voltage test | ||
| Range | Ground resistance: 0.01Ω-1200Ω | Resolution: 0.001Ω | Accuracy: ±1%±0.01Ω |
| Current: 0.00mA-40.0A | Resolution: 0.01mA | Accuracy: ±2%±1mA | |
| Ground voltage: 0.0V-100V | |||
| Temperature/Humidity | 23℃±5℃,below 75% RH | ||
| Power Supply | DC 6V(4 alkaline dry batteries #5) | ||
| Measurement Method | Mutual induction | ||
| Clamp Diameter | 55mm×32mm | ||
| Clock Function | Available | ||
| Ω + A Synchronous Display | Ω + A same screen display | ||
| Display Mode | 4-digit LCD display, black screen design | ||
| LCD Dimension | 46mm×29mm | ||
| Dimension of Tester | 285mm×85mm×58mm(LxWxH) | ||
| Sampling Speed | 2 times/second | ||
| USB Interface | With USB interface, software monitoring, storage data can be uploaded to the computer for saving or printing. | ||
| Communication Cable | 1 pc communication cable | ||
| Data Storage | 500 groups, "MEM" storage indication, display "FULL" symbol indicates that the storage is full. | ||
| Data Review | "MR" symbol indicates when reviewing data | ||
| Overflow Indicate | The "OL" symbol indicates when the range overflows | ||
| Interference Test | Automatic identification of interference signal, when the interference current is large "NOISE" symbol indicates. | ||
| Alarm Function | When the measured value exceeds the alarm set value, an alarm will be given. | ||
| Battery Voltage | Real-time display of battery power, low battery remind timely charging | ||
| Automatic Shutdown | "APO" indicates that it will automatically shut down after 5 minutes. | ||
| Power Consumption | 50mA Max | ||
| Weight | 1180g (with battery) | ||
| Working Temperature / Humidity | -10℃～40℃, below 80% RH | ||
| Storage Temperature / Humidity | -20℃～60℃, below 70% RH | ||
| Insulation Resistance | Above 20MΩ(500V between circuit and shell) | ||
| Withstand Voltage | AC 3700V/rms(between circuit and shell) | ||
| External Magnetic Field | ＜40A/m | ||
| External Electric Field | ＜1V/m | ||
| Suitable for Safety Regulations |
IEC61010-1(CAT Ⅲ 300V, CAT IV 150V, Pollution Degree II)； IEC61010-031； IEC61557-1(ground resistance) |
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The Clamp Ground Resistance Tester GRT-100 is handheld tool for measuring the ground resistance, leakage current, and ground voltage.
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