1) current: 0~24mADC,resolution:1μA, RL≤400Ω, accuracy:±0.05%FS,RL×IL≤8V
2) voltage:0~6VDC,resolution:0.1mV, RL≥10kΩ,accuracy:±0.05%FS
3) millivolt:0~120mVDC,resolution:1μV, RL≥20kΩ,accuracy:±0.05%FS
4) frequency:0~5000Hz,TTL level rectangular wave,resolution:0.1Hz
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