The AT6820 insulation resistance tester is a compact benchtop instrument controlled by a high-performance ARM microprocessor, featuring fully automatic real-time detection. It is equipped with a full-color LCD display and a full numeric keypad, combined with the Onmeas instrument operating system, providing clearer display and more convenient operation.
The instrument features a built-in 1V-1000V voltage source with 1V resolution that can be programmed freely. It offers 2% insulation resistance accuracy with a measurement range up to 10GΩ, 9999 reading capacity, and a measurement speed of up to 30 readings per second.
| Parameter | AT6820 | ||
|---|---|---|---|
| Leakage Current & Insulation Resistance Measurement | |||
| Number of Channels | Single Channel | ||
| Measurement Parameters | Insulation Resistance | ||
| Output Voltage | Digitally controlled 10V-1000VDC | ||
| Basic Accuracy | 2% | ||
| Test Range | 0.000MΩ-1TΩ (≤500V: 400GΩ, >500V: 1TΩ) | ||
| Reading | 9999 | ||
| Range | Auto, Manual, and Nominal | ||
| Test Speed | Auto Range Mode | Poor Contact Off | Slow: 2/s, Medium: 13/s, Fast: 18/s |
| Poor Contact On | Slow: 1.9/s, Medium: 11/s, Fast: 15/s | ||
| Manual Range Mode | Poor Contact Off | Slow: 2.2/s, Medium: 18/s, Fast: 29/s | |
| Poor Contact On | Slow: 2/s, Medium: 15/s, Fast: 22/s | ||
| Calibration | Full-range open circuit zeroing | ||
| Display Results | Direct reading, current, resistance, peak value, and sorting results | ||
| Charging Timer | 100ms-99s (independently set) | ||
| Charging Current | - | ||
| Comparator | OK: Pass, NG LO: Under limit, NG HI: Over limit | ||
| General Parameters | |||
| Dimensions | Instrument Dimensions | 264 (W) x 107 (H) x 320 (D) mm | |
| Package Dimensions | - | ||
| Weight | Net Weight | 5 kg | |
| Gross Weight | - | ||
| Power Requirements | AC 220V ±10%, 50Hz | ||
| Interface | Handler interface, RS232, USB, RS485 | ||
| Communication Protocol | SCPI/ModBus (RTU) | ||
| Others | 3.5" HD LCD display; Accessories: ATL507 3-terminal test clip, ATL108 RS232 communication cable | ||