| 1.5mA | 0.25mA | 3mA | Accuracy | 0.1% +0.1% F.S.)±(1% +0. | 0.1% F.S.)±(F.S.)±( | 0.1% +0.2% F.S.)Constant resistance | 0.025Ω~100Ω 1.25Ω~5KΩ 1.25Ω~5KΩ 3.75Ω~15KΩ 12.5mΩ~50Ω 0.625Ω~2.5KΩ Resolution | 12bits | Accuracy | 100ms+ 5KΩ:5KΩ:5kΩ:10ms+ 50Ω:0.5% | 10ms+ Constant voltage | 1 ~2.5V ~2.5V ~1 ~1 ~1 ~Resolution | 0.03125V | 0.020V | 0.020V |