China Earth Resistance Tester Earth Resistance Measurement Digital Earth Resistance Tester

Digital Ground Resistance Tester Ground Voltage Measurement Low Value Resistance MeasurementHT3000 digital grounding resistance tester, also known as the three-wire grounding resistance tester, grounding resistance meter, etc., is a commonly used instrument for measuring common grounding resistance meters.It uses a large LCD gray screen backlight display and microprocessor technology to meet the two-wire, three-wire test resistance requirements.Suitable for telecommunications, electricity, meteorology, computer rooms, oil fields, power distribution lines, iron tower transmission lines, gas stations, factory grounding networks, lightning rods and so on.The instrument has the characteristics of precise, fast, simple, stable and reliable.
HT3000 digital grounding resistance tester is controlled by a microprocessor and can automatically detect the connection status of each interface and the interference voltage and interference frequency of the ground network, and with the function of testing the auxiliary grounding resistance, the measured groundiValve ng and auxiliary grounding resistance in the same screen display is clear at a glance.At the same time store 500 sets of data, resistance measurement range: 0.01Ω ~ 3000Ω, grounding voltage range: 0 ~ 100V. The online monitoring data can be monitored by the monitoring software. USB data can be uploaded to the PC and has unique functions such as numerical maintenance and intelligent alarm prompting.
HT3000 digital grounding resistance tester consists of host computer, monitoring software, test line, USB cable, and grounding pin. It has the functions of reading, checking, saving, reporting and printing of historical data.Grounding resistance range0.01Ω~3000Ω Accuracy±1.5%rdg±3dgtGrounding resistance resolution0.01ΩGrounding voltage range0~100V AC Accuracy±1.5%rdg±3dgtGrounding voltage resolution0.01Vbase condition23ºC±5ºC,below 75%rh (Auxiliary grounding resistance 100Ω±5%,voltage to ground<10V)FunctionGround resistance measurement, ground voltage measurement, low value resistance measurementPowerDC 6V 4.5AhLead-acid battery, standby for more than 100 hoursBacklightControllable gray screen backlight, suitable for use in dim placesMeasuring modePrecise three-wire measurement, simple two-wire measurementMeasuring methodsGrounding resistance: rated current change pole method, 128Hz;
Ground Voltage: Average RectificationTest frequency128HzShort-circuit test current> 20mA ( sine wave)Wire resistance checkAvoid the errors cause of the test line is not fully inserted into the instrument interface or the contactor is incorrectly replaced or the user replaces the extended test lead, to make the ground resistance test more accurateDisplay mode4-bit large LCD display, gray screen backlightMeasurement instructionsLED flashing indicator during measurement, LCD countdown dIce Machine isplayLCD size108mmx65mmInstrument sizeL/W/H:277.2mmx227.5mmx153mmTest line length3 strips:red 15m,yellow 10m,green 5m each oneSimple test line2 strips:yellow 1.6m,green 1.6m each oneAuxiliary grounding rod2PCS:φ10mmx200mmMeasure timeGround voltage: about 3 times/sec; grounding resistance: about 5 seconds/timeMeasurement timesMore than 5000 timesLine voltageMeasuring voltage to ground: test below AC 100VUSB interfaceWith USB interface, software monitoring, storage data can be uploaded to the computer, save and printCommunication lineOne USB communication line, 1.5m longData storage500 groups, "MEM" storage instructions, display "FULElectrode L" symbol indicates that the storage is fullData reviewData review function: "MR" symbol displayOverflow displayOver-range overflow function: "OL" symbol displayAlarm functionAlarm when the measured value exceeds the alarm setting valueBattery voltageReal-time display of battery power, reminding timely charging when battWirConstruction Equipment & Tools e Mesh ery voltage is lowAutomatic shut-down"APO" indicates automatic shutdown after 15 minutesPower consumptionStandby: 40mA Max (backlight off)Turn on backlight: 43mA MaxMeasurement: 120mA Max (backlight off)WeightInstrument: 2397g (with battery)Test line: 850g (including simple test line)Auxiliary grounding rods: 425g (2)Instrument bag: 271gWorking temperature and humidity -10ºC~40ºC;below 80%rhStorage temperature and humidity-20ºC~60ºC;below 70%rhOverload protectionGrounding resistance: AC 280V/3 seconds between E-H and E-S portsInsulation resistanceAbove 10MΩ (500V between circuit and case)Pressure resistanceAC 3700V/rms(between circuit and case)Electromagnetic propertiesIEC61010-4-3,Wireless frequency electromagnetic field≤1V/mSuitable for safety regulationsIEC61010-1,IEC1010-2-31,IEC61557-1,5,IEC60529(IP54),pollution level 2,CAT III 300V