Product Introduction
The LD-2571 Digital Ground Resistance Tester utilizes advanced medium and large-scale integrated circuits, combining the three-terminal and four-terminal measurement methods into a single model with DC/AC conversion technology.
The LD-2571 Digital Ground Resistance Tester operates on the principle that the internal DC/AC converter converts direct current to low-frequency alternating current. This is then used to form a circuit with the auxiliary ground electrode C and the object under test E, generating an alternating current voltage drop on the object. This voltage drop is sent through the auxiliary ground electrode P to an AC amplifier for amplification, which is then detected and displayed on the meter. With the range switch, three different measurement ranges can be obtained: 0-2Ω, 0-20Ω, and 0-200Ω.
The LD-2571 Digital Ground Resistance Tester is suitable for measuring the ground resistance of various equipment in the power, telecommunications, railway, communication, and mining industries, as well as for measuring the resistance values of low-resistance conductors; this meter can also measure soil resistivity and ground voltage.
Product Synonyms: Digital Ground Resistance Meter, Digital Ground Resistance Tester, Digital Ground Resistance Tester, Ground Resistance, Ground Gauge, Digital Ground Gauge, Ground Tester, Ground Resistance Tester
Product Features
The casing is made of high-strength aluminum alloy structurally, and the circuit employs phase-locked loop synchronous tracking detection method to prevent power frequency and radio frequency interference, accompanied by a switchable capacitor filter, ensuring the instrument has excellent anti-interference capabilities.
The LD-2571 Digital Ground Resistance Tester employs DC/AC conversion technology to convert direct current into low-frequency constant current, making it easier to measure.
◆ The auxiliary grounding resistance is adjustable between 0～2kΩ (RC) and 0～40kΩ (RP), without affecting the measurement results.
The LD-2571 Digital Ground Resistance Tester requires no manual balance adjustment, features a 3 1/2 digit LCD display, and in addition to measuring ground resistance, can also test low resistance conductor resistance, soil resistivity, and AC ground voltage.
If the test circuit is not functioning, the meter display "1" indicates overflow, which is in line with conventional measurements.
