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AC current frequency: 1kHz;
①Measure the battery internal resistance (R) & voltage (V), as well as reactance (X), complex impedance (Z) & phase angle (θ);
②Measure the equivalent resistance value of the supercapacitor & the resistance value of the precision resistor.
②Measure the equivalent resistance value of the supercapacitor & the resistance value of the precision resistor.
| Voltage (0~60V) | Range | Display Range | Resolution | Accuracy |
|---|---|---|---|---|
| 6V | -6.6~6.6V | 10μV | ±0.01% | |
| 60V | -66~66V | 100μV | ±0.01% | |
| Phase | Display Range | Resolution | ||
| -180°~180° | 0.001° | |||
| Impedance (0~3Ω) | Range | Display Range | Resolution | Current | Accuracy |
|---|---|---|---|---|---|
| 3mΩ | -3.3~3.3mΩ | 0.1μΩ | 250mA | ±0.4% | |
| 30mΩ | -33~33mΩ | 1μΩ | 100mA | ±0.3% | |
| 300mΩ | -330~330mΩ | 10μΩ | 10mA | ±0.3% | |
| 3Ω | -3.3~3.3Ω | 0.1mΩ | 1mA | ±0.3% |
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