Power Testing Instruments

BY2571 Digital Ground Resistance Tester

Digital earth resistance meter using DC/AC conversion technology, measuring ground resistance, low-resistance conductor resistance, soil resistivity and earth voltage, for power, telecom, railway, communication and mining applications.

BY2571 Digital Ground Resistance Tester

Overview

Digital earth resistance meter using DC/AC conversion technology, measuring ground resistance, low-resistance conductor resistance, soil resistivity and earth voltage, for power, telecom, railway, communication and mining applications.

Standards & Compliance

Benchmark standards for this equipment category

Systems in this category are commonly specified against these standards, linked to the issuing body. Final configuration and acceptance criteria follow the standard and edition you nominate.

Application Scenarios

Grounding resistance measurement of installationsLow-resistance conductor measurementSoil resistivity measurementEarth voltage measurement

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Detailed Description

Overview: the BY2571 digital earth resistance meter replaces the manual hand-cranked generator with advanced medium/large-scale integrated circuits and DC/AC conversion technology, merging three-terminal and four-terminal measurement into a single instrument.

Working principle: an internal DC/AC converter turns DC into a low-frequency constant current that flows through the auxiliary earth electrode (C) and the test object (E). The AC voltage drop across the test object is fed through the auxiliary electrode (P) to an AC amplifier, then detected and displayed. A multiplier switch gives three ranges: 0-2Ω, 0-20Ω and 0-200Ω.

Features: a high-strength aluminium alloy case, a phase-locked-loop synchronous detection method with switched-capacitor filtering for power-frequency and RF interference rejection, and a 3-1/2 digit LCD. The instrument measures earth resistance, low-resistance conductor resistance, soil resistivity and AC earth voltage.

Technical Specifications

Resistance ranges0-2Ω (10mA), 2-20Ω (10mA), 20-200Ω (1mA)
Voltage rangeAC 0-20V
Accuracy (0-0.2Ω)≤±3%±1 digit
Accuracy (0.2-200Ω)≤±1.5%±1 digit
Accuracy (1-20V)≤±3%±1 digit
Resolution0.001Ω, 0.01Ω, 0.1Ω, 0.01V
Auxiliary earth resistance (RC)<1.8kΩ
Auxiliary earth resistance (RP)<40kΩ
Allowable earth voltage≤5V (power-frequency RMS)
Power supply6.8V-9V (6x AA NiCd rechargeable), 220V AC charging
Dimensions220mm x 200mm x 105mm
Weight≤1.4kg

Frequently Asked Questions

What is the BY2571 Digital Ground Resistance Tester used for?
It measures the grounding resistance of various installations and the resistance of low-resistance conductors in power, post and telecommunications, railway, communication and mining departments. It can also measure soil resistivity and earth voltage.
How does it work?
It abandons the traditional hand-cranked generator, using medium/large-scale integrated circuits and DC/AC conversion technology to merge three-terminal and four-terminal measurement into one instrument. An internal DC/AC converter produces a low-frequency constant current that flows through the auxiliary earth electrode and the test object, and the resulting AC voltage drop is amplified and detected for display.
How do I get a quotation?
Email your required range and application to bowen@harchin.com. The instrument is manufactured in our Nanjing facility and quoted directly from the factory based on your configuration.

Reviewed by the Application Engineering Team at Nanjing Gaodian Electric Power Equipment

Specifications are taken from the manufacturer’s technical documentation. Final configuration and acceptance criteria follow the standard and edition you nominate — tell us your test list and we will confirm the ratings.

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