GT5307B AC/DC Measurement Short Circuit Protection Digital Megger Insulation Resistance Tester
Product Overview
This advanced insulation/continuity tester features a new design with large-scale integrated circuits for precise measurement of insulation resistance, DC voltage, and AC voltage. With comprehensive functions, high accuracy, and stable performance, it's ideal for testing transformers, motors, cables, switches, and various electrical equipment.
Key Features
- Insulation resistance measurement with multiple voltage options (100V/250V/500V/1000V)
- AC and DC voltage measurement with automatic identification
- Small resistance measurement capability (0-999Ω)
- Live detection and short circuit protection for tested resistance
- Measurement data locking function
- Polarization index and absorption ratio testing
- Automatic discharge and low battery reminder
- Large LCD screen with clear digital display
- External DC power supply support (DC9V 1.5A)
- 10M internal resistance measurement
- Over limit alarm with red indicator light and buzzer
- High voltage alarm and test voltage display
Technical Specifications
General Specifications
| Display |
Large-screen LCD (up to 500 counts) |
| Over Limit Indication |
Hi mark appears on insulation resistance range |
| Auto Range |
Higher range: 500 counts; Lower range: 1 count |
| Sampling Rate |
2 times per second |
| Operation Environment |
Temperature: 0°C-40°C / Humidity: ≤85% |
| Storage Environment |
Temperature: -20°C-60°C / Humidity: ≤90% |
| Power Supply |
DC9V (6x1.5V AA batteries) |
| Dimensions |
176*110*77mm |
Insulation Resistance Test
| Rated Voltage |
100V/250V/500V/1000V |
| Measurement Range |
0~1.5GΩ/0~5.5GΩ/0~5.5GΩ/0~5.5GΩ |
| Accuracy |
±5%rdg±3dgt (above 100KΩ) |
Small Resistance Measurement
| Open Circuit Voltage |
About 5.0V |
| Measuring Range |
0-999Ω |
| Resolution |
0.1Ω |
Product Images