Wrindu RD3022E Digital earth resistance tester (0.00Ω ~ 30.00kΩ)

Function: 2/3/4-pole measurement for earth resistance, soil resistivity, earth voltage, AC 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

Measurement Mode: Precise 4-pole measurement, 3-pole measurement, simple 2-pole measurement of earth resistance

Measurement 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)

Short-circuit Test Current: AC 20mA max

Open- circuit Test Voltage: AC 40V max

Test Voltage Wave: Sine wave

Electrode Distance Range: Can be set 1m ~100m

Shift

- Earth resistance: 0.00Ω-30.00kΩ, automatic shift

- Soil Resistivity: 0.00Ωm-9000kΩm, automatic shift

LCD Frame Dimension: 128mm×75mm

LCD Display Dimension: 124mm×67mm

Meter Dimension: 215mm(L)×178mm(W)×83mm(H)

Standard Test Wire: 4PCS: each for red 20m, black 20m, yellow 10m and green 10m

Simple Test Wire: 2PCS: each for red 1.6m and black 1.6m

Auxiliary Ground Rod: 4PCS: Φ10mm×150mm

Measurement Time

- Earth Voltage: about 3 times/second

- Earth resistance, soil resistivity: about 15 seconds/time

Measuring Times: Over 5000 times 

Line Voltage: Below AC 600V measure

Communication Interface: USB interface, software monitoring

Communication Cable: 1PCS USB communication cable, length 1.5m

Working Temperature & Humidity: -10℃ ~ 40℃, below 80%RH

Storage temperature & humidity: -20℃ ~ 60℃, below 70%RH