The LD-2571 grounding resistance tester adopts advanced medium to large-scale integrated circuits and DC/AC conversion technology, combining three terminal and four terminal testing methods into one model, greatly improving testing efficiency and accuracy. The LD-2571 grounding resistance tester is widely used in power, postal, railway, communication, mining and other departments to test the grounding resistance of various devices, as well as the resistance value of low resistance conductors, soil resistivity and AC ground voltage.
| Conditions of use | |
| Ambient temperature | 0℃ ~ +45℃ |
| Relative humidity | ≤85%RH |
| Measuring range and constant current value (Root Mean Square) | |
| Resistance | 0 ~ 2 Ω (10 mA), 2 ~ 20 Ω (10mA), 20 ~ 200 Ω (1mA) |
| Voltage | AC 0 ~ 19.99V |
| Measurement accuracy and resolution | |
| Accuracy | 0~0.2Ω≤±3%±1d; 0.2Ω~199.9Ω≤±1.5%±1d; 1~ 19.99V≤±3%±1d |
| Resolution | 0.001Ω 、0.01Ω 、0. 1Ω 、0.01V |
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. 2. To learn more about Longdian products, please enter the product center. Service Hotline: 400-6727-238
High precision and wide range: The LD-2571 grounding resistance tester provides three ranges of 0-2 Ω, 2-20 Ω, and 20-200 Ω, with testing accuracy of up to ± 3% ± 2d (1-20 Ω) and ± 1.5% ± 1d (20 Ω -200 Ω), meeting different testing needs.
Strong anti-interference ability: The instrument adopts a phase-locked loop synchronous tracking detection method and a switched capacitor filter, effectively resisting power frequency and radio frequency interference, ensuring the accuracy and stability of test data.
Multi functional integration: In addition to measuring grounding resistance, LD-2571 can also measure low resistance conductor resistance, soil resistivity, and AC ground voltage, achieving multi-purpose use and improving equipment utilization.
Intelligent operation and display: The instrument is equipped with a 3 (1/2) LCD display screen, which does not require manual adjustment of balance and directly displays test results. If the test circuit is not connected, the header will display "1" as an overflow indicator, which is in line with conventional testing habits.
Portable design: Featuring a high-strength aluminum alloy casing, it is small in size, lightweight, and easy to carry and operate. Built in rechargeable battery pack, supports external 220V AC power charging, suitable for field and on-site testing.
Safe and reliable: The instrument has comprehensive protection functions, including grounding protection, current limiting, and voltage limiting protection, to ensure the safety of users and equipment. At the same time, the instrument is equipped with a built-in calendar chip and a large capacity memory, which can save test results at any time for easy viewing and analysis in the future.
