ETCR 3100C Soil Resistivity Tester Digital 4‑Digit LCD Earth Ground Resistance Meter

ETCR3100C Earth Resistance Soil Resistivity Tester is specially designed and manufactured for on-site measurement of earth resistance, soil resistivity, earth voltage, and AC voltage. Apply digital processing technology, precision 4-wire method, 3-wire method, and simple 2-wire method to measure grounding resistance; Adopt FFT (fast Fourier transform) technology, AFC (automatic frequency control) technology, automatic identification of interference and selection of measurement frequency, to minimize the impact of interference, provide more accurate earth resistance value. With unique anti-interference ability and environmental adaptability, high repeated test consistency, ensuring high precision, high stability, and high reliability for long-term measurement.

 

The tester case is made of a waterproof protection box, anti-collision, anti-drop, waterproof (protection grade IP65), strong and durable, and also equipped with a large-capacity rechargeable lithium battery pack, especially suitable for outdoor construction. Widely used in power, telecommunications, meteorology, oil fields, construction, lightning protection, and industrial electrical equipment, such as grounding resistance, soil resistivity, and grounding voltage.

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Feature of ETCR 3100C

  • 2, 3, and 4‑wire: Soil resistivity tester supports 2, 3, and 4‑wire grounding resistance measurements.
  • 4‑digit large LCD: 4‑digit large LCD with white screen backlight, suitable for use in dimly lit places.
  • IP65 grade: IP65 grade, good waterproof, compact, and portable, supports multiple functional tests.
  • 0.00‑30.00kΩ: Ground resistance measurement range is 0.00‑30.00kΩ, and soil resistivity is 0.00Ωm‑900kΩm.
  • Support: Support ground voltage, AC voltage measurement, high accuracy, and long-term use.

Specification of ETCR 3100C

Function 2/3/4-pole measurement for earth resistance, soil resistivity, earth voltage
Power Supply DC 7.4V 2600mAh rechargeable lithium battery, full of about 8.4V
Measurement Range Earth Resistance: 0.00Ω-30.00kΩ | Soil Resistivity: 0.00Ωm-9000kΩm | Earth Voltage: 0V~600V
Measuring Mode Precise 4-pole measurement, 3-pole measurement, simple 2-pole measurement of earth resistance
Measuring Method Earth Resistance: rated current change-pole method, test current 20mA Max | Soil Resistivity: 4-pole method (Wenner method) | Earth Voltage: average rectification(between P(S)-ES)
Test Frequency 128Hz/111Hz/105Hz/94Hz(AFC)
Test Current > 20mA (Sine wave)
Open-circuit Test Current AC 40V max
Test Voltage Wave Sine wave
Electrode Distance Range 1m-100m
Shift Earth resistance: 0.00Ω-30.00kΩ automatic shift | Soil Resistivity: 0.00Ωm-9000kΩm automatic shift
Backlight Controllable white screen backlight, suitable for dim places
Display Mode 4-digital super-large LCD display, white screen backlight
Measurement Indicator During measurement, LED flash indicator, LCD count down display, progress bar indicator
LCD Frame Dimension 128mm×75mm
LCD Window Dimension 124mm×67mm
Meter Dimension 280mm(L)×260mm(W)×160mm(H)
Standard Test Wire 4 wires: each for red 20m, black 20m, yellow 10m, and green 10m
Simple Test Wire 2 wires: each for red 1.6m and black 1.6m
Auxiliary Ground Rod 4 wires: Φ10mm×150mm
Measurement Rate Voltage to earth: about 3 times/second | Earth resistance, soil resistivity: about 15 seconds/time
Measuring Times Over 5000 times (Short-circuit test, interval time should be at least 30 seconds)
Circuit Voltage below AC 600V
Communication Interface USB interface, software monitoring, storage data can be uploaded to computer, saved or printed.
Communication Wire One piece USB communication wire, length 1.5m
Data Storage 300 sets, “MEM” symbol storage indicator, flash display “FULL” symbol indicate storage full
Data Hold Data hold function: “HOLD” symbol display
Data Read Data read function: “READ” symbol display
Overflow Display Over range overflow function: “OL” symbol display
Interference Test Recognize interference signal automatically, “NOISE” symbol display when interference voltage exceed 5V
Auxiliary Ground Test With auxiliary earth resistance test function, 0.00K?-30k?(100R+rC<50k?, 100R+rP<50k?)
Alarm Function Measurement value exceeds alarm setting value, will “Toot-toot-toot” alarm hint
Auto-shut off Automatically shut down after 10 minutes of power on
Battery Voltage While battery voltage decreases to around 7.2V±0.1V, will display battery voltage low symbol“ ”, and reminding to charge
Working Power Standby: about 20mA (Backlight shut off) | Boot up and with backlight: about 45mA (25mA without backlight) | Measurement: about 100mA (Backlight shut off)
Weight Tester: 2290g | Tester bag:915g | Test wires: 1560g | Auxiliary ground rods: 935g (4pcs)
Working Temperature & Humidity -10℃-40℃, below 80%rh
Storage temperature & humidity -20℃-60℃, below 70%rh
Overload Protection Measuring earth resistance: between each interfaces of C(H)-E?P(S)-ES, AC 280V/3 seconds
Protection Level IP65(close the case)
Insulation Resistance Over 20MΩ (between circuit and enclosure it is 500V)
Withstand Voltage AC 3700V/rms (Between circuit and enclosure)
Electromagnetic Features IEC61326(EMC)
Protection Type IEC61010-1 (CAT III 300V, CAT IV 150V, Pollution 2), IEC61010-031, IEC61557-1 (Earth resistance), IEC61557-5 (Soil resistivity), JJG 366-2004

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