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ETCR Large Grounding Grid Earth Tester

EM3300B Large Grounding Network Earth Resistance Tester

EM3300B Large Grounding Network Earth Resistance Tester
Product Series : Large Grounding Grid Earth Tester
Main FeaturesMeasuring earth resistance, earth continuity, soil resistivity, step voltage, contact voltage and earth surface electric potential gradient of the large grounding network device.
Grounding Impedance Measurement Range: 0.000Ω ~ 2000Ω
Soil Resistivity Measurement Range: 0Ωm ~ 125kΩm
Output Current Level: 1A ~ 5A
Max. Voltage Output: 400V
Data Storage: 1000 Groups
Alarm Function: Custom setting alarm threshold
USB Communication
Bluetooth Communication

EM3300B  Large Grounding Network Earth Resistance Tester is also known as earth grid grounding impedance tester, variable frequency earth resistance tester, earth grid tester, which is used for substation ground network, power plant, microwave station, communication base station and other large ground network grounding parameter measurement. The tester is powerful,which can measure earth resistance, earth continuity, soil resistivity, step voltage, contact voltage and earth surface electric potential gradient of the large grounding network device.
EM3300B Large Grounding Network Earth Resistance Tester is manufactured according to the JJG984-2004 Grounding Conduction Verification regulation, DL/T475-2006 Grounding Device Characteristic Parameters Measurement Guidelines, DL/T845.2-2004 Resistance measuring Device General Technical Conditions Part ll: Power Frequency Earth Resistance Tester. The instrument has unique grounding pile, cable diagnostic function and self-checking function to ensure the accuracy of test result. And the tester also adopt with strong automatic frequency conversion anti-interference technology, with 400V/5A high-power output can accurately measure the power frequency data of below 50Hz under strong interference environment.
EM3300B Large Grounding Network Earth Resistance Tester has storage, time function, which can automatically record 1000 groups test result containing date and time. Through USB interface can upload the test data to the PC, making the historical data can be read, checked, saved and printed, etc.
ETCRMETER is a high-end brand of ETCR. All products are manufactured by ETCR, which also provides technical support and after-sales service.

Product Features
1.Comprehensive measure the power frequency characteristic parameter of large grounding grid.
2.Output current 1A ~ 5A, voltage 400V. Adopt automatic frequency conversion and hardware and software filtering technology, which makes the instrument with stong anti-interference, ensuring the data stable and reliable.
3.With test function of current pile and voltage pile, which is used to diagnose the fault of poor connection of line contact , voltage pile and current pile.
4.Self-checking Function: Equipped with 0.5Ω standard resistance for self-checking at any time to ensure the accuracy of the test result.
5.Alarm Function: Custom setting alarm threshold
6.Data Storage: 1000 Groups
7.USB Communication: Data upload function
8.Bluetooth Communication
9.Built-in Printer

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Technical Parameters

Specification NameParameters Description
FunctionsMeasuring earth resistance, earth continuity, soil resistivity, step voltage, contact voltage and earth surface electric potential gradient of the large grounding network device.
Power SupplyAC220V ± 10 %, 50Hz
LCD Display5inch touch colorful screen
Impedance Measurement Range0.000Ω ~ 2000Ω
Max. Resolution0.001Ω
Measurement Error± 2 % rdg ± 5dgt
Soil Resistivity Measurement Range0 Ωm ~ 125 kΩm (determined by the resistance measurement range  and the test length)
Soil Resistivity measurement accuracyDepends on the measurement accuracy of (R. ρ = 2πaR; a: 1.0m to 100m;π = 3.14)
Anti-Power Frequency/ Voltage Interference Ability10V(50Hz)
Test Current WaveSine Wave
Test Current FrequencyOptional one or two frequency point between with 40Hz ~ 60Hz
Max. Current Output5A
Output Current Level1A, 2A, 3A, 4A, 5A
Max. Voltage Output400V
Measurement RequirementsThe copper core cross-sectional area of the current line should be ≥ 2.0 mm²; the copper core cross-sectional area of the voltage line should be ≥ 1.5 mm².
Data Storage1000 groups
Withstand VoltageAC 3700V/rms (between the circuit and shell)
PrinterBuilt-in type, can print the test result on site
USB CommunicationYes, data upload function
Bluetooth CommunicationYes, support the Android System
Tester Dimension460 x 380 x 320mm
WeightApprox. 33kgs (include accessories)
Working Temperature & Humidity– 10℃ ~ 40℃; Below 80 % RH
Storage Temperature & Humidity-20℃ to 60℃; below 70%RH