EN
GDMC-2G Lightning Protection Component Tester
GDMC-2G Digital Intelligent 3-in-1 Lightning Protection Component Tester with MOV U1mA/Leakage Current, GDT Breakdown Voltage, Insulation Resistance Measurement, Auto-Qualification Judgment, for On-Site Overvoltage Protection Device Testing.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
GDMC-2G is a professional 3-in-1 portable lightning protection component tester designed for on-site performance testing and quality inspection of overvoltage protection components in power systems, communication networks, industrial equipment and buildings. It strictly complies with GB/T 18802.1-2011, IEC 61643-1:2015 and GB/T 16927.1-2011 standards, integrating metal oxide varistor (MOV) test, gas discharge tube (GDT) test and insulation resistance test into one device, replacing multiple traditional test instruments.
The instrument adopts advanced DC voltage drop method and digital signal processing technology, featuring 0~3000V ultra-wide measurement range and ±2% industry-leading accuracy. Its fully automatic range shifting and one-click test function simplify operation significantly, while the built-in intelligent qualification judgment algorithm automatically compares test results with standard values and displays pass/fail status. The 4.3-inch high-definition color touch screen provides intuitive operation and real-time display of test parameters and waveforms.
Specifications
| Parameter | Specification |
|---|---|
| Compliance Standards | GB/T 18802.1-2011, IEC 61643-1:2015, GB/T 16927.1-2011, DL/T 474.5-2006 |
| Test Functions | Metal Oxide Varistor (MOV) test, Gas Discharge Tube (GDT) test, Insulation Resistance test |
| Test Principle | DC voltage drop method |
| Gear Shift | Fully automatic |
| MOV Test Parameters | |
| U1mA Measurement Range | 50V ~ 3000V DC |
| U1mA Accuracy | ±2% reading ± 3 digits |
| U1mA Resolution | 1V |
| 0.75U1mA Leakage Current Range | 0μA ~ 1000μA |
| Leakage Current Accuracy | ±2% reading ± 10 digits |
| Leakage Current Resolution | 0.1μA |
| GDT Test Parameters | |
| DC Breakdown Voltage Range | 50V ~ 3000V DC |
| Breakdown Voltage Accuracy | ±2% reading ± 3 digits |
| Breakdown Voltage Resolution | 1V |
| Test Rate | 100V/s ± 10% |
| Insulation Resistance Test Parameters | |
| Test Voltage | 500V DC / 2500V DC (switchable) |
| Measurement Range | 0.5MΩ ~ 3000MΩ (500V); 2.5MΩ ~ 10GΩ (2500V) |
| Accuracy | ±6% reading ± 10 digits |
| Resolution | 0.001MΩ |
| Display | 4.3-inch 480×272 color capacitive touch screen |
| Data Storage | 1000 groups MOV + 1000 groups GDT + 1000 groups insulation resistance |
| Communication Interface | USB 2.0 (U-disk export) |
| Power Supply | Built-in 7.2V/2600mAh lithium battery; AC 220V charging |
| Battery Life | ≥3 hours continuous working time |
| Charging Time | ≤4 hours |
| Protection Functions | Over-voltage, over-current, short-circuit, reverse connection, low battery |
| Operating Temperature | -10℃ ~ +50℃ |
| Humidity | ≤85% RH (non-condensing) |
| Dimensions (L×W×H) | 212×175×76mm |
| Weight | ~1.2kg (including battery) |
| Enclosure | ABS+PC engineering plastic with rubber protective cover |
Applications
Core Test Objects
- Varistors (MOV): All types of metal oxide varistors for lightning protection and surge suppression
- Gas discharge tubes (GDT): Ceramic gas discharge tubes, glass discharge tubes, vacuum discharge tubes
- Insulation materials: Insulation resistance test of wires, cables, connectors and insulating components
- Overvoltage protection devices: Lightning arresters, surge protectors (SPD), TVS diodes, transient voltage suppressors
Typical Usage Scenarios
- Power companies: Substation lightning protection system routine inspection, surge protector performance test
- Telecom operators: Communication base station lightning protection equipment maintenance and acceptance test
- Industrial enterprises: Internal overvoltage protection device regular inspection and quality control
- Lightning protection manufacturers: Factory quality control, batch inspection and type test of lightning protection components
- Third-party testing institutions: Lightning protection system certification testing, safety assessment and on-site calibration services
Advantages
Compliance with Latest International Standards
Fully meets GB/T 18802.1-2011, IEC 61643-1:2015, GB/T 16927.1-2011 → test results are globally recognized
Industry-Leading 3-in-1 Integrated Design
Integrates MOV, GDT and insulation resistance test into one device → one instrument replaces 3 traditional testers, reduces equipment cost by 60%
0~3000V Ultra-Wide Range & ±2% High Accuracy
Covers all mainstream lightning protection components, 2× higher accuracy than ordinary testers → accurately identifies defective components and ensures lightning protection system safety
Fully Automatic Operation & Auto-Qualification Judgment
One-click test, automatic range shifting, automatic pass/fail judgment → reduces operator skill requirements and test time by 80%
Classified Large-Capacity Data Storage
3×1000 groups classified storage, USB export and PC analysis software → facilitates digital management of test data and quality traceability
FAQ
Q: What is the difference between GDMC-2G and ordinary single-function testers?
A: Ordinary single-function testers can only test one type of component (either MOV or GDT), requiring multiple instruments for complete lightning protection system testing. GDMC-2G integrates MOV test, GDT test and insulation resistance test into one device, providing the following advantages:
- Cost saving: One instrument replaces 3 traditional testers, reducing equipment purchase cost by 60%
- Improved efficiency: No need to switch instruments and re-wire between different tests
- Enhanced portability: Only one device to carry, more convenient for on-site testing
Q: How does the auto-qualification judgment work?
A: Users can pre-set the qualified range for each parameter (e.g., U1mA range for a specific MOV model) in the instrument menu. After testing, the instrument automatically compares the measured value with the pre-set range and displays "Pass" or "Fail" on the screen. This eliminates manual comparison errors and improves test efficiency, especially for batch testing.
Q: Can it test TVS diodes?
A: Yes. GDMC-2G can test the breakdown voltage and leakage current of TVS diodes with breakdown voltage between 50V and 3000V. For TVS diodes with breakdown voltage below 50V, a dedicated low-voltage TVS tester is recommended.
