Insulation Resistance Tester, Earth Ground Resistance Tester ETCR3100C Soil Resistivity Tester Ground Resistance Tester Digital Earth Resistance Tester

Power Supply：DC 7.4V 2600mAh rechargeable lithium batteryMeasuring Method：Earth Resistance: rated current change-pole method, measurement current 20mA Max, Soil Resistivity: Wenner 4-pole measurement, Earth Voltage: average rectification(between P(S)-ES)Test Frequency：128Hz/111Hz/105Hz/94Hz(AFC)Test Voltage Wave：Sine waveShort-circuit Test Current：AC 20mA maxOpen-circuit Test Current：AC 40V maxData Storage：300setsData Hold：Data hold function: “HOLD” symbol displayData Access：Data read function: “READ” symbol displayOverflow Display：Exceeding measuring range overflow function: “OL” symbol displayLCD Dimension：LCD Frame Dimension: 128mm×75mm; LCD Display Dimension:124mm×67mmTester Dimension：280mm(L)×260mm(W)×160mm(H)Weight：Total Weight:4765kg(with package)Testing Wires：Six wires: each for Red 20m, black 20m, yellow 10m, green 10m, red 1.6m, black 1.6mAuxiliary Earth Rod：4PCS:φ10mm×150mmUSB interface：USB interface,software supervision, storage data can be uploaded to computer, saved and printed;data transmission line length:1.5mBattery Voltage：While battery voltage decreases to around 7.8V, will display battery voltage low symbol and reminding to replace the batteryWorking current：System standby: around 20mA (Backlight shut off); Power on: 45mA(backlight shut off at 25mA); Measurement:100mA (Backlight shut off)Accessories：Tester:1PC; Earth Rod:4PCS; Testing Wire:4PCS; Simple testing wire:2PCS; USB data transmission line:1PCS; Software disk:1PCS; Tester bag:1PCS; Special charger:1PCS

• Alarm Function：Measuring value exceeds alarm setting value, will "Toot-toot-toot" alarm hint
• Auto Power-off：15 Minutes after power on, will outage and automatic power off
• Overload Protection：Measuring earth resistance: between each interfaces of C(H)-E,P(S)-ES, AC 280V/3 seconds
• Interference Test：Automatic recognition of interference signal , interference voltage higher than 5V will display “NOISE” symbol
• <50kΩ,100R+rP50kΩ)
• Protection Level：IP65(close the case status)