Features and Advantages
Large Full-Touch LCD Display
Designed for simplicity, the instrument features a high-end, full-touch LCD screen with an extra-large, fully graphical user interface. Every step of the process is displayed with exceptional clarity, allowing operators to use the device effectively without requiring any additional specialized training. A single light touch is all that is needed to complete the entire measurement process, making this an ideal intelligent measurement device for modern applications.
Variable Frequency Technology for Precise Measurement
Boasting strong anti-interference capabilities, the instrument utilizes an internal variable-frequency power supply module to generate its measurement output power. The output frequency can be toggled between 45 Hz and 55 Hz. Furthermore, by employing digital filtering technology, the device effectively eliminates various power- frequency interference signals typically encountered in field environments, thereby ensuring highly precise, accurate, and reliable measurements.
High-Speed DSP Processor
Ensuring both precision and speed, the instrument utilizes a professional, high-speed Digital Signal Processor (DSP) as its core processing unit. While guaranteeing the accuracy of measurement data, this advanced architecture significantly enhances the instrument’s overall computational and data processing capabilities.
Intelligent Measurement and Control of the Entire Process
Powered by its high-performance internal processing core, the instrument rapidly and automatically executes a series of complex computational tasks throughout the measurement process—including current output, voltage acquisition, and frequency conversion. The device can automatically assess the impedance of the current loop and, based on this assessment, automatically adjust the output current of the variable-frequency power source (with a maximum output of 5A). This allows the instrument to complete the entire testing task automatically, without the need for any human intervention. The instrument’s measurement parameters include the grounding grid’s total impedance (Z), its pure resistive component (R), and its pure inductive component (X).
Massive Data Storage Capacity
Equipped with an internal calendar chip and large-capacity memory, the instrument saves test results in chronological order. Users can access and review historical records at any time, and the data can also be printed out for documentation purposes.
PC-Based Data Processing
Measurement data recorded by the instrument can be exported via a USB flash drive, allowing users to subsequently view, analyze, and manage the relevant data on a personal computer.
Parameter
| Operating Conditions | -10°C~40°C RH < 80% |
| Anti-interference Principle | Variable Frequency Method |
| Power Supply | AC 220V ±10% Generator-compatible |
| Measurement Output Current | 1A – 5A (Adjustable) |
| Measurement Output Voltage | 0V – 400V |
| Test Power Frequency | 50 Hz, 60 Hz (Single Frequency) |
| 45/55 Hz, 55/65 Hz, 47.5/52.5 Hz, 57.5/62.5 Hz (Automatic Dual Frequency) | |
| Rated Output Power | 2000 W |
| Resolution | Grounding Impedance: 0.0001 Ω |
| Impedance Angle: 0.0001° | |
| Accuracy | Grounding Impedance: ±(1% of reading + 0.002) |
| Impedance Angle: ±(1% of reading + 0.02°) | |
| Resistance Measurement Range | 0.001 Ω – 5 kΩ |
| Dimensions | 370 (L) × 295 (W) × 358 (H) mm |
| Memory Capacity | 100 Sets; Supports USB Flash Drive Data Storage |
| Weight | Main Unit: 22 kg; Ground Stakes: 7 kg |
