ETCR3300B Digital Display Grounding Grid Earth Resistance Tester

Description

The ETCR3300B Digital Display Grounding Grid Earth Resistance Tester represents the pinnacle of Original Engineering for large-scale electrical infrastructure diagnostics. Designed specifically for complex grounding networks, this instrument provides high-precision measurement of earth resistance, soil resistivity, and earth voltage. Utilizing advanced digital signal processing and multi-frequency testing capabilities, the ETCR3300B effectively eliminates industrial frequency interference, ensuring absolute data fidelity in high-noise environments such as operational substations and telecommunication hubs.

Technical Specifications:
Brand: ETCR
Model: ETCR3300B
Measurement Function: Earth Resistance, Soil Resistivity, Earth Voltage, AC Voltage
Earth Resistance Range: 0.000 Ω to 30.00k Ω
Soil Resistivity Range: 0.00 Ω·m to 9000k Ω·m
Earth Voltage Range: AC 0.0V to 100.0V
Test Frequency: 128Hz, 111Hz, 105Hz, 94Hz (AFC Automatic Frequency Control)
Test Current: AC 20mA max
Measurement Method: 2/3/4-pole measurement
Display: Large LCD with white screen backlight
Data Storage: 500 sets
Communication Interface: USB interface for PC data analysis
Power Supply: DC 7.4V 2600mAh rechargeable lithium battery
Operating Temperature: -10°C to 40°C
Operating Humidity: Below 80% RH
Protection Class: IP65 (case closed), IP54 (case open)
Weight: 4.5 kg
Dimensions: 280mm x 260mm x 160mm

Industrial Application:
The ETCR3300B is engineered for critical diagnostic scenarios involving large-scale grounding grids in 110kV to 500kV substations, power plant facilities, and high-voltage transmission towers. Its superior anti-interference architecture allows technicians to accurately assess the integrity of lightning protection systems and subterranean grounding networks without disconnecting the ground down lead. This capability ensures continuous facility operation while verifying compliance with stringent electrical safety standards.

Procurement Information:
Technical Compatibility: Fully compatible with standard 4-terminal earth testing protocols and existing ETCR diagnostic software ecosystems.
Lead Time: Standard global dispatch within 3 to 5 business days, subject to regional logistics.
Quality Assurance: Manufactured under strict quality control to guarantee industrial-grade reliability and measurement precision.

Key Attributes
Accuracy Class: ±2%
Current Range: 5A
Insulation Resistance: > 2 MΩ
Measuring Range: 0.000Ω~2000Ω
Testing Voltage: 400V
Place of Origin: Guangdong, China
Model Number: 3300B
Brand Name: ETCR
Current Resolution: 1 mA
Dimensions: 460 * 380 *320mm
Display Type: Digital Only
Operating Temperature: -20°C-50°C
Speed Range: 10 m/s
Time Resolution: 0.1 ms
Power Supply: AC220V±10%, 50Hz
Display Screen: 5 inch touch color screen
Memory: 1000 groups
Bluetooth Communication: Support Android system
Working Temperature & Humidity: -10℃~40℃; below 80%RH
Frequency: 40Hz~60Hz

Packaging and Delivery
Selling Units: Single item
Single package size: 54X45X39 cm
Single gross weight: 6.000 kg