Product introduction
The UHV-2571B is a professional soil resistivity tester and ground resistance meter designed for soil resistivity, grounding resistance, low resistance, and AC grounding voltage testing. It uses a four-wire measurement method and interference suppression technology for reliable field testing in substations, grounding grids, transmission and distribution systems, communication base stations, and industrial facilities.
Product functions
Ground resistance testing: Accurately measures the ground resistance of grounding electrodes and grounding systems to determine whether grounding performance meets requirements.
Soil resistivity testing: Uses the four-wire method to measure soil resistivity, providing data basis for grounding grid design and grounding engineering construction.
Low resistance testing: Measures the resistance of grounding conductors, metal conductors, and connection points to check whether connections are reliable.
AC grounding voltage testing: Detects the AC voltage of the on-site grounding system, assisting in evaluating the grounding environment and interference conditions.
Anti-interference testing: Features power frequency and radio frequency interference suppression capability, suitable for complex on-site environments such as substations, distribution rooms, and grounding grids.
Four-wire precision measurement: Reduces the influence of test leads and contact resistance on measurement results, improving the accuracy of ground resistance and soil resistivity testing.
 |  |
Đặc trưng
1 Thân vỏ bằng hợp kim nhôm cường độ cao, mạch được trang bị vòng khóa pha và bộ lọc tụ điện chuyển mạch, dựa vào đó thiết bị đóng vai trò hiệu quả trong việc che chắn tần số nguồn và nhiễu tần số vô tuyến.
2 Bộ chuyển đổi DC/AC có thể chuyển đổi dòng điện một chiều thành dòng điện không đổi tần số thấp AC để đo.
3 Auxiliary grounding resistance can change in the range of 0 ~ 2KΩ (RC), 0 ~ 40KΩ (RP), that will not affect measurement results.
4 Without manual adjustment to zero, with three and a half bits LED display, the instrument can be used for measuring the grounding resistance, the conductor resistance of low resistance, soil resistivity and AC ground voltage. If tested loop encounter failure, the screen displays "1" indicating large range, which consistent with conventional measurement practices.
15. Nhắc nhở thông minh về điện áp thấp của pin để đảm bảo độ chính xác của thử nghiệm.
16. Kích thước nhỏ và trọng lượng nhẹ.
Các thông số kỹ thuật
| Điều kiện làm việc | Nhiệt độ môi trường xung quanh | 0℃～+45℃ |
| Độ ẩm tương đối | 85%RH | |
Measurement range and constant current value (effective value) | Sức chống cự | 0～20Ω(10mA)，2～200Ω(1mA)，20～2000Ω(0.1mA) |
| Vôn | AC0～19.99V | |
| Độ chính xác và độ phân giải của phép đo | Precision rowspan | 0～0.2Ω±3%±1d |
| 0.2Ω～1999.9Ω≤±1.5%±1d | ||
| 1～19,99V<±3%±1d | ||
| Nghị quyết | 0.01Ω、0.1Ω、1Ω、0.01V | |
Lỗi đo gây ra bởi phụ trợ điện trở nối đất và điện áp nối đất | Cho phép điện trở nối đất phụ | RC(between C1 and C2) |
| 0～20Ω≤1kΩ | ||
| 20～2000Ω≤2kΩ | ||
| RP(between P1 and P2) < 40kΩ， Error≤±5% | ||
Điện áp nối đất cho phép (hiệu dụng giá trị tần số nguồn) | ≤5V， Error≤±5% | |
| Nguồn điện và mức tiêu thụ điện năng | Mất điện tối đa | 2W |
| DC | 8 × 1.5V (AA, R6) battery | |
| AC | 220V/50Hz | |
| volume and weight | Kích thước | 220×200×105mm3 |
| Cân nặng | 1,4kg |
Ntên nick: Máy đo điện trở suất của đất; máy đo điện trở đất
Application Scenarios
Substations: Testing the performance of substation grounding grids and grounding systems.
Transmission and distribution lines: Testing the grounding resistance of transmission towers and distribution equipment.
Power equipment grounding: Testing the grounding condition of transformers, switchgear, and other equipment.
Building grounding systems: Testing lightning protection grounding, protective grounding, and other building grounding systems.
Communication base stations: Testing the grounding resistance and grounding system performance of communication base stations.
Grounding grid construction and acceptance: Measuring soil resistivity to provide a basis for grounding grid design, construction, and acceptance.
Lightning protection grounding testing: Testing lightning rods, surge arresters, and lightning protection grounding devices.
Industrial sites: Testing the grounding condition of factory equipment, distribution systems, and large machinery.
Grounding system maintenance: Used for periodic inspections to identify abnormal ground resistance or grounding connection issues.
Frequently Asked Questions
Q: Why is it necessary to measure soil resistivity before grounding grid design?
A: Soil resistivity is important basic data for grounding grid design, helping to determine the arrangement of grounding electrodes and the grounding scheme.
Q: Can it be used for newly built grounding systems?
A: Yes. It can be used for soil resistivity testing before construction, during construction inspection, and for ground resistance acceptance testing after completion.
Q: What is the biggest feature of this device?
A: It combines ground resistance and soil resistivity testing in a single device, while also supporting low resistance and AC grounding voltage testing.
Q:Why is soil resistivity important for grounding system design?
A:Soil resistivity is an important factor when designing a grounding system because it affects grounding electrode performance and the overall resistance of the grounding network. Accurate soil resistivity measurement helps engineers select an appropriate grounding method and design.
As an experienced manufacturer and supplier, we provide competitive factory-direct price, OEM/ODM service, technical support, calibration certification, and professional after-sales service. If you are looking for a reliable soil resistivity tester supplier or need the latest soil resistivity tester price, please contact us for a quotation and detailed technical information.
