Introduction:

Multifunctional grounding resistance tester is also called grounding resistance tester. It is an advanced grounding resistance tester which integrates various measuring methods. Besides the traditional function of measuring grounding resistance with auxiliary grounding electrode, the instrument also has the unique function of measuring grounding resistance without auxiliary grounding electrode. The color display screen and microprocessor technology are adopted, and the precise 4-wire method, 3-wire method and simple 2-wire method, selection method and double clamp method are controlled by the microprocessor to measure the grounding resistance test. The design of large-caliber current clamp is adopted, and the on-line measurement is realized by using the double clamp measurement technology, without auxiliary grounding pole and isolation of grounding body from equipment. Widely used in telecommunications, electric power, meteorology, computer rooms, oil fields, power distribution lines, tower transmission lines, gas stations, factory grounding grids, lightning rods and so on. The instrument has the characteristics of accurate, fast, simple, stable and reliable test.

Multifunctional grounding resistance tester is also called grounding resistance tester. It is an advanced grounding resistance tester which integrates various measuring methods. Besides the traditional function of measuring grounding resistance with auxiliary grounding electrode, the instrument also has the unique function of measuring grounding resistance without auxiliary grounding electrode. The color display screen and microprocessor technology are adopted, and the precise 4-wire method, 3-wire method and simple 2-wire method, selection method and double clamp method are controlled by the microprocessor to measure the grounding resistance test. The design of large-caliber current clamp is adopted, and the on-line measurement is realized by using the double clamp measurement technology, without auxiliary grounding pole and isolation of grounding body from equipment. Widely used in telecommunications, electric power, meteorology, computer rooms, oil fields, power distribution lines, tower transmission lines, gas stations, factory grounding grids, lightning rods and so on. The instrument has the characteristics of accurate, fast, simple, stable and reliable test.

The multifunctional grounding resistance tester is controlled by microprocessor, which can accurately detect grounding resistance, soil resistivity, grounding voltage, DC voltage, DC resistance and AC current. It uses fast filtering technology to minimize interference. The resistance value of auxiliary electrode is displayed on the same screen, which is convenient for judging the measurement error caused by environmental factors and measuring the real resistance value of grounding more accurately. At the same time, 500 groups of data are stored, and the functions of wireless or wired remote measurement, reading historical data, exporting report analysis and so on are realized by connecting the mobile phone APP through Bluetooth or connecting the PC through USB. It has unique functions such as value keeping and intelligent alarm prompt.

The multifunctional ground resistance tester consists of a main unit, host computer software, mobile app software, test leads, USB cable, charger, and grounding probe.

Technical Specifications:
Two,three and four wire method grounding resistance:0.000Ω~200.00kΩ  Accuracy:±1.5%rdg±70dgt   Resolution ratio:0.001Ω
DC resistance:0.000Ω~200.00kΩ  Accuracy:±1.5%rdg±70dgt   Resolution ratio:0.001Ω
Selection method for grounding resistance:0.00Ω~3.000kΩ Accuracy:±2%rdg±30dgt  Resolution ratio:0.01Ω
Dual-clamp grounding resistance:0.00Ω~200Ω  Accuracy:±10%rdg±10dgt Resolution ratio:0.01Ω
Soil resistivity:0.00Ωm~9999kΩm  Accuracy:ρ=2πaR Resolution ratio:0.01Ωm
Ground voltage:0.000V~750.0V Accuracy:±1.5%rdg±50dgt Resolution ratio:0.001V
DC Voltage:0.000V~1000.0V  Accuracy:±1.5%rdg±50dgt Resolution ratio:0.001V
AC Current:0.00A~1000.0A  Accuracy:±2%rdg±50dgt  Resolution ratio:0.01mA
Base condition:23℃±5℃,75%rh below
Power Supply:
11.1V Lithium battery (built-in) full charge can be measured continuously for more than 1000 times in AC resistance mode
Backline:Controlled backlight, suitable for dim place use
Test the waveform, and the frequency:Sine wave at 128Hz
Auto shut off:“APO” indicates automatic shutdown after 15 minutes (default).The shutdown time can be customized
Measurement method:Two – three – four – wire method measurement、Soil resistivity、Selective measurement、Dual – clamp method、DC resistance、AC current、Ground voltage、DC voltage
Alarm function:Sending an alarm prompt when the measured value exceeds the alarm set point
Screen size:5 Inches
Electrode spacing range:0.1m~100.0m
Measurement time:
AC current: about 3 times / second
AC current: about 3 times / second
Ground resistance, soil resistivity: about 10 seconds / time
USB Interface:
With USB interface, for data reading, saving record data, etc
Bluetooth APP:
With remote control, real-time monitoring, data reading and other functions
Data storage:500 Groups
Overload protection:Measure the grounding resistance: H-E, S-ES between each port of AC 280V / 3 seconds
Auxiliary grounding rod:4 Piles:φ10mm×200mm
Auxiliary grounding test:With the auxiliary grounding resistance value test function,0.00kΩ~200.00kΩ
Power dissipation:
screen intensity: 190mA Max (maximum brightness) 140mA Min (minimum brightness)
Measurement: 200mA Max (max) 150mA Min (minimum)
Quality:
Instrument: 1975g (including battery)
Current clamp: 940g (2pcs)
Test line: 1300g (including simple test line)
Suitable for safety regulations
IEC61010-1(CAT Ⅲ 300V、CAT IV 150V、Pollution degree 2);IEC61010-031;
IEC61557-1(earth resistance );
IEC61557-5(  soil resistivity  );
JJG 366-2004(earth resistance meter );
JJG 1054-2009(clamp earth resistance meter).
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