Introduction：          

Digital Earth Resistance Tester, also known as earth resistance tester, grounding pile type earth resistance, grounding megger, which is used for measurement of earth resistance and earth voltage.The tester adopt with digital and micro-processing technology, and the earth resistance is measured by precision 3-wire method or 2-wire method widely used in industries such as electric power, telecommunication, meteorology, oil field, construction,lightning protection and industrial electrical equipment.

Digital Earth Resistance Tester has unique line resistance verification function, which makes the measurement of low-value earth resistance in the field more accurate, and can avoid errors caused by change in line resistance caused by long-term use of the test line; can avoid errors caused by the test line not being fully inserted into the tester interface or poor contact, as well as the errors caused by the user replacing or lengthening the test line, etc.

Digital Earth Resistance Tester consists of host, monitoring software, test line, communication line, etc.The tester shell adopt with waterproof protection box, which is anti-collision, anti-fall and waterproof (protection level IP65), strong, safe and durable. The tester is also equipped with a large-capacity rechargeable lithium battery set, which is especially suitable for use on outdoor construction site.The host has large LCD display, white screen backlight, and bar chart indication, which is clear and obvious. At the same time, it can store 400 sets of data, realize historical query and online real-time monitoring functions through monitoring software, and dynamically display, with maximum, minimum, and average value indication, alarm value setting and alarm indication functions, and historical data reading, saving, reporting functions, etc.

Features:

1.Precision 3-wire method or simple 2-wire method to measure earth resistance.

2. The tester has unique line resistance verification function, anti-interference ability and environmental adaptability, and the On-site low value earth resistance measurement is more accurate.

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

4. Alarm function, setting alarm threshold.

5. Memory, 400 sets of data storage.

6. USB interface, data upload function.

7. Large-capacity lithium battery.

Technical Parameters:

Earth Resistance：Range:0.01Ω~2000Ω Resolution:0.01Ω Accuracy:±2%rdg±3dgt

Earth Voltage：Range:0~600V AC Resolution:1V Accuracy:±2%rdg±3dgt

Power Supply：DC 7.4V 2600mAh rechargeable lithium battery

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

Weight：Host: about 4730g; Total weight: about 5kgs(include accessoreies and package)

Measuring Method：Earth ground resistance: rated current change-pole method, measurement current 3mA Max,820Hz; Earth Voltage: average value rectification

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

Test Current：>20mA(Sine wave)

Measuring time：Earth voltage : 3 times/second; Earth resistance: 5 seconds/time

Data Storage：400 sets, flash "FULL" symbol to indicate storage is full

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

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

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

Circuit Voltage：Measuring earth voltage : AC 600V MAX

Auxiliary Ground Stake：2 PCS: Φ9mmX230mm

Testing Wires：Five wires: each for Red 20m, yellow 10m, green 5m, red 1.6m, green 1.6m

Interface：USB interface,software supervision, storage data can be uploaded to computer, saved and printed;data transmission line length:1.5m

Wire Resistance Verification：Avoid errors caused by the test line not fully inserted into the instrument interface or poor contact or the user replaces the lengthened test line, ensure grounding resistance measurement more accurate

Alarm Function：Measuring value exceeds alarm setting value, will "Toot-toot-toot" alarm hint

Auto Power-off：10 Minutes after power on, will outage and automatic power off

Battery Voltage：While battery voltage decreases to around 7.8V, will display battery voltage low symbol, and reminding to replace the battery

Overload Protection：Earth resistance: between each interfaces of E-P,E-C, AC

Protection Level：IP65（close the case）

Working Current：Backlight: 25mA Max; Standby: 25mA Max(Backlight off); Measurement:70mA Max(Backlight off)

Accessories：Tester:1PCS; Ground stake:2PCS; Test line:3PCS; Simple test line: 2PCS; USB communication cable :1PCS; Tool bag:1PC; Special charger:1PCS：