The AT2511 is an economical and practical DC low resistance tester, an upgraded version of the AT511A.
Compared to its predecessor AT511A, the AT2511 offers a wider test range: 0.01mΩ to 200.0kΩ with 5000 display digits. It also features improved test speed of 10 readings per second with stable readings. The enhanced fully automatic range test circuit with all-electronic switch design enables instantaneous switching from high to low ranges.
The AT2511 features a 0.8-inch high-brightness digital tube display with intuitive buttons and indicators, providing clearer instrument readouts and an easy-to-use interface.
The AT2511 utilizes superior low-current testing characteristics, making it particularly suitable for test-current-sensitive resistors such as platinum RTDs, copper RTDs, PTC ceramic thermistors, alloy wire DC resistors, and DC resistance of current protection devices.
The AT2511 is also suitable for measuring various contact resistances, transformer, inductor, motor, and deflection coil winding resistances, wire resistances, metal riveted joint resistances in vehicles, ships, and aircraft, as well as PCB trace and plated-through hole resistances.
| Parameter | AT2511 | |
|---|---|---|
| Technical Parameters | ||
| Channels | Single Channel | |
| Measurement Parameters | DC Low Resistance | |
| Basic Accuracy | 0.2% | |
| Measurement Range | 10μΩ – 200kΩ | |
| Signal Source | Maximum Current | I - Max: <100mA (Low-current testing, compatible with Hioki 3540) |
| Current Mode | Auto | |
| Range | 8 ranges, auto and manual | |
| Measurement Speed | Slow: 3 readings/s, Fast: 10 readings/s | |
| Display Results | - | |
| Maximum Reading | 5,000 | |
| Calibration | Full-range short-circuit zeroing | |
| Comparator | OFF / PASS / HI / LO | |
| Trigger Mode | Internal Trigger | |
| Temperature Compensation | - | |
| Test Terminals | 4-terminal shielded (2 sense + 2 source) with external shield ground | |
| Contact Check Function | - | |
| General Parameters | ||
| Dimensions | Instrument Dimensions | Approx. 220mm × 85mm × 259mm (W × H × D) |
| Package Dimensions | - | |
| Weight | Net Weight | Approx. 2kg |
| Gross Weight | - | |
| Power Requirements | 198–252V AC, 48.5–52.5Hz, 15VA | |
| Interface | - | |
| Others | 0.8-inch LED display | |