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 tester shell adopt waterproof protection box, which is anti-collision, anti-fall, and waterproof (protection level IP65). It is strong, safe and durable. The tester is also equipped with a large-capacity rechargeable lithium battery pack, which is especially suitable for use on outdoor construction sites.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.

Feature

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.

6.Bluetooth Communication

Technical Specifications：

Power Supply：DC 7.4V 2600mAh rechargeable lithium battery

Measuring 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 wave

Short-circuit Test Current：AC 20mA max

Open-circuit Test Current：AC 40V max

Data Storage：300sets

Data Hold：Data hold function: "HOLD" symbol display

Data Access：Data read function: "READ" symbol display

Overflow Display：Exceeding measuring range overflow function: "OL" symbol display

LCD Dimension：LCD Frame Dimension: 128mm×75mm; LCD Display Dimension:124mm×67mm

Tester Dimension：280mm(L)×260mm(W)×160mm(H)

Weight：Total Weight:4765kg(Include accessories and package)

Testing Wires：Six wires: each for Red 20m, black 20m, yellow 10m, green 10m, red 1.6m, black 1.6m

Auxiliary Ground Stake：4PCS: φ9mmX230mm

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

Alarm Function：When the measured value exceed alarm setting value, will have “Du--du--du” alarm sound

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

Auxiliary Grounding Test：Auxiliary earth resistance test function: 0.00kΩ~30kΩ(100R+rC<;;50kΩ,100R+rP<;;50kΩ)

Protection Level：IP65(close the case)