Description
The ETCR EM3100C is a professional-grade Earth Resistance and Soil Resistivity Tester engineered for high-precision grounding system diagnostics. Utilizing Original Engineering principles, this instrument delivers reliable 2-pole, 3-pole, and 4-pole earth resistance measurements alongside advanced soil resistivity profiling. Designed for seamless Technical Compatibility with diverse industrial grounding grids, the EM3100C integrates Automatic Frequency Control (AFC) to mitigate environmental interference, ensuring data integrity in electrically noisy environments.
Technical Specifications:
Measurement Functions: 2/3/4-Pole Earth Resistance, Soil Resistivity, Earth Voltage
Earth Resistance Range: 0.00Ω to 30.00kΩ
Soil Resistivity Range: 0.00Ωm to 9000kΩm
Earth Voltage Range: AC 0.0V to 600V
Test Frequency: 128Hz / 111Hz / 105Hz / 94Hz (AFC)
Short-Circuit Test Current: AC 20mA max
Open-Circuit Test Voltage: AC 40V max
Electrode Distance Range: 1m to 100m
Power Supply: DC 7.4V 2600mAh Rechargeable Lithium Battery
Display: LCD with Backlight (124mm x 67mm)
Data Storage: 300 Sets
Communication Interface: USB
Operating Temperature: -10°C to 40°C
Relative Humidity: Below 80% RH
Protection Rating: IP54
Safety Standards: IEC61010-1, CAT III 300V, CAT IV 150V, Pollution Degree 2
Weight: 1.2 kg (Meter), 4.5 kg (Total Package)
Industrial Application:
The ETCR EM3100C is critical for evaluating the grounding efficacy of high-voltage electrical substations and telecommunication transmission towers. By accurately mapping soil resistivity prior to construction and verifying earth resistance post-installation, engineers can design optimal grounding grids that safely dissipate fault currents and lightning strikes. Its AFC technology specifically solves the problem of stray current interference common in active substations, allowing for precise measurements without de-energizing the facility.
Procurement and Lifecycle:
Optimized Lead Time applies based on global distribution logistics. The unit includes all necessary auxiliary grounding rods, testing wires, and software for comprehensive data analysis, ensuring immediate field deployment and long-term diagnostic reliability.
Key Attributes
Accuracy Class: ±2%
Current Range: 20mA
Insulation Resistance: > 500 kΩ
Measuring Range: 9000kΩm
Testing Voltage: 40V
Place of Origin: Guangdong, China
Model Number: 3100C
Brand Name: ETCR
Current Resolution: 1 mA
Dimensions: 280mm(L)X260mm(W)X160mm(H)
Display Type: LCD
Operating Temperature: -20°C-50°C
Speed Range: 10 m/s
Time Resolution: 10 ms
Data Storage: 300 groups
Power Supply: DC 7.4V 2600mAh
Test Current: AC 20mA max
Packaging and Delivery
Selling Units: Single item
Single package size: 38X35X25 cm
Single gross weight: 7.500 kg
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