Introduction:          

Earth Resistance/Soil Resistivity Tester, also known as digital earth resistance tester, ground pile earth resistance tester, soil resistivity tester, two-three-four-wire earth resistance tester, which is used for measurement of earth resistance, soil resistivity, earth voltage,the tester using digital and micro-processing technology, precision 4-wire method, 3-wire method and simple 2-wire method to measure grounding resistance, introduce FFT (fast Fourier transform) technology, AFC (automatic frequency control) technology, automatically identify interference and select the measurement frequency to minimize the impact of interference and provide more accurate earth resistance value, widely used in electric power, telecommunication, meteorology, construction, lightning protection and industrial electrical equipment industries.

Earth Resistance/Soil Resistivity Tester consists of a host, data upload software, test line, auxiliary grounding rod, communication line, etc.The host has max LCD display, a white screen backlight, and a bar chart indication, which is clear.Storage function, storing 300 sets of data, through the USB interface data upload software to achieve historical query and online real-time monitoring functions, dynamic display, alarm instructions, with historical data reading, viewing, saving, reporting, printing and other functions.
Features:
1. The two-, three- and four-wire earth resistance measurement adopts FFT (fast Fourier transform) technology and AFC (automatic frequency control) technology. It has unique anti-interference ability and environmental adaptability, and has strong consistency in repeated tests.

2. The host  has a large LCD display, white screen backlight, and bar chart indication, which is clear.

3. Alarm function, the alarm threshold can be set.

4. Memory, 300 sets of data storage.

5. USB interface, data upload function.

Technical Parameters:

Power Supply:DC 9V (Alkaline dry battery LR14 1.5VX6PCS )

Measurement Method:
Earth Resistance: rated current change-pole method, measurement current 20mA Max
Soil Resistivity: Wenner 4-pole measurement; Voltage to earth: Average rectifier

Test Frequency:128Hz/111Hz/105Hz/94Hz(AFC)

Test Voltage Wave:Sine wave

Test Current:>20mA(Sine wave)

Open-circuit Test Voltage:AC 40V max

Data Storage:300 groups

Data Hold:“HOLD” symbol indication

Data Access:“READ” symbol indication

Overflow Indication:Over range overflow “OL” symbol indication

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

LCD Dimension:
LCD dimension:128mmX75mm; LCD display area: 124mmX67mm

Tester Dimension:212mm(L)X175mm(W)X85mm(H)

Weight:4.5kg(include accessories and package)

Test Line:Red 20m, black 20m, yellow 10m, green 10m, red 1.6m, black 1.6m (total 6PCS)

Auxiliary Ground Stake:4 PCS: Φ9mmX230mm

USB Interface:Equip with USB interface, software supervision, storage data can be uploaded to computer, saved and printed; Communication cable length:1.5m

Alarm Function:The measured value exceeds alarm setting value, "Du--du--du" alarm sound

Automatic Shutdown:15 minutes without any operation after starting up, the tester will shutdown automatically

Overload Protection:Earth resistance: between each termianls of C(H)-E、P(S)-ES, AC 280V/3 seconds

Interference Test:Automatic identify the interference signal, interference voltage higher than 5V will display “NOISE” symbol

Auxiliary Earth Test:With auxiliary earth resistance test function: 0.00KΩ-30kΩ(100R+rC<50kΩ, 100R+rP<50kΩ)

Line Voltage:Measure voltage to earth: AC 600V Max

Battery Voltage:While battery voltage drop to around 7.5V, low battery voltage symbol “  ” will display, and remind to replace the battery

Working Current:Standby: around 20mA (Backlight off);Power on: 45mA(backlight off 25mA);Measurement:100mA (Backlight off)

Accessories:Tester:1PC; Ground stake: 4PCS; Test line:4PCS; Simple test line:2PCS; USB special communication cable:1PCS; Tester case:1PCS; LR14 battery: 6PCS

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