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China, Chinese Uhv-2571A Portable Grounding Resistance Tester1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Meter for ElectricityResistance MeterEarth Resistance TesterGround Resistance Tester
Wuhan UHV Power Technology Co., Ltd.
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Product Description Product overviewGround resistance and soil resistivity tester, also known as four-wire ground tester and precision ground resistance tester, is a common instrument for testing and measuring ground resistance. It adopts a large LCD gray screen backlight display and microprocessor technology to meet the requirements of two, three and four-wire test resistance and soil resistivity.It is suitable for telecommunication, electric power, meteorological, computer room, oil field, power distribution line, tower transmission line, gas station, factory grounding network, lightning rod, etc. Instrument test precision, fast, simple, stable and reliable.The ground resistance and soil resistivity tester is controlled by the microprocessor, which can automatically detect the connection status of each interface and the interference voltage and interference frequency of the ground network, and has the function of testing the resistance value of the auxiliary ground electrode. 500 groups of data are stored at the same time. The resistance measurement range is 0.01Ω to 30.00kΩ, and the grounding voltage range is 0.01V to 600V.Products feature1,The instrument uses a large LCD gray screen backlight display and microprocessor technology, through the microprocessor control of 2-wire, 3-wire, 4-wire French ground resistance test and soil resistivity test.2,The instrument brings together many grounding test functions to quickly and comprehensively measure various parameters in the grounding network.3,The instrument has the characteristics of accurate test, fast, simple, stable and reliable.4,The instrument uses fast filtering technology to minimize interference. 500 groups of data are stored simultaneously. Product parameterTechnique parameterMeasuring functionMeasuring rangePrecisionResolutionGround resistance (R)0.00Ω~30.00Ω±2%rdg±5dgt (Note 1)0.01Ω30.0Ω~300.0Ω±2%rdg±3dgt0.1Ω300Ω~3000Ω±2%rdg±3dgt1Ω3.00kΩ~30.00kΩ±2%rdg±3dgt10ΩSoil resistivity(ρ)0.00Ωm~99.99Ωmρ=2πaR (Note 2)0.01Ωm100.0Ωm~999.9Ωm0.1Ωm1000Ωm~9999Ωm1Ωm10.00kΩm~99.99kΩm10Ωm100.0kΩm~999.9kΩm100Ωm1000kΩm~9999kΩm1kΩmGround voltageAC 0.00~600V±2%rdg±3dgt0.01VNote:1,Standard condition: Accuracy when Rh Rs<100Ω.Working conditions: Rh max = 3kΩ+100R < 50kΩ; Rs max = 3kΩ+100R < 50kΩ2,Depends on the measurement accuracy of R, π=3.14, a:1 m ~ 100m;General specification Work and energyTwo, three, four lines to measure ground resistance, soil resistivity;Grounding voltage and AC voltage measurementAmbient temperature and humidity23oC±5oC, less than 75%rhPowerDC 9V 6 LR14 dry battery continuous standby more than 100 hoursInterference voltage< 20V (should be avoided)Interference current< 2A (should be avoided)Electrode spacing when measuring Ra>5dElectrode spacing when measuring ρa>20hAuxiliary grounding resistanceThe base condition is < 100Ω, and the working condition is < 5kΩMeasuring rangeGround resistance: 0.00Ω to 30.00kΩSoil resistivity: 0.00Ωm ~ 9999kΩmGround voltage: 0.00V to 600VMeasurement modePrecision 4-wire, 3-wire method measurement, simple 2-wire ground resistance measurementMeasurement methodGround resistance: rated current pole-changing methodSoil resistivity: quadrupole methodGround voltage: Average rectification (between S-ES interfaces)Test frequency128HzShort-circuit test currentAC > 20mA (sine wave)Open-circuit test voltageAC 28V maxElectrode spacing rangeCan be set to 1m ~ 100mShiftGround resistance: 0.00Ω ~ 30.00kΩ automatic shiftSoil resistivity: 0.00Ωm ~ 9999kΩm automatic shiftBacklightControllable off-white backlight, suitable for use in dim placesDisplay mode4 digit large LCD display with off-white backlightMeasurement indicationLED flicker during measurementLCD size111mm×68mmLCD display field108mm×65mmMeter size240mm (L)×188mm (W)×85mm (H)Standard test line4 pieces: red 15m, black 15m, yellow 10m, green 10m each 1 pieceSimple test line2 pieces: yellow 1.5m, green 1.5m eachAuxiliary ground rod4 rootsMeasuring timeVoltage to ground: about 3 times/secondGround resistance, soil resistivity: about 7 seconds/timeGround voltageAC below 600V measurement (Grounding voltage measurement function cannot be used to measure commercial electricity)Data storage500 group, "MEM" storage indicator, showing the "FULL" symbol indicates that the storage is fullData lookupThe "MR" symbol indicates when consulting dataOverflow displayThe "OL" symbol indicates when an overrange overflow occursAlarm functionAn alarm is issued when the measured value exceeds the alarm setting valueBattery voltageThe battery low voltage symbol is displayedAutomatic shutdown"APO" indicates that it automatically shuts down after 15 minutes of startupPower consumptionStandby: Approx. 40mA(backlight off)Turn on the backlight: about 43mAMeasurement: Approx. 75mA(backlight off)QualityMeter: 1280g(including battery)Test line: 1300gAuxiliary ground rod: 720g(4)Operating temperature and humidity-10oC ~ 40oC; Less than 80%rhStorage temperature and humidity-20oC ~ 60oC; Below 70%rhOverload protectionMeasurement Ground resistance: AC 280V/3 seconds between H-E and S-ES portsInsulation resistanceMore than 20MΩ (500V between circuit and housing)Withstand voltageAC3700V/rms(between circuit and housing)Electromagnetic characteristicIEC61326(EMC)Fit for safetyIEC61010-1(CAT III 300V, CAT IV 150V, pollution degree 2);IEC61010-031;IEC61557-1(ground resistance);IEC61557-5(Soil resistivity);JJG 366-2004;
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