DY4300B 4-Terminal Earth Resistance and Soil Resistivity Tester , DUOYI เครื่องมือวัดและทดสอบทางด้านไฟฟ้า / ราคา
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หมวดหมู่ : DUOYI Electronic ,
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- Overview
- 4 pole earth resistance measurement 0 to 209.9kΩ with min. resolution 0.001Ω
- Auto ranging soil resistivity measurement 0 to 1999kΩm
- Series interference voltage Ust(AC only) 0~50.9Vrms
- Measures frequency 400~500Hz
- Measureing Voltage Um optional/auto-selected 10Vrms 94Hz, 105Hz, 111Hz, 128Hz
- Test current maximum 10mA
- Advance filtering method based on FFT(fast fourier transform) reduces noise interference
- Compensation for residual resistance Rk
- Data Memory 1000 sets
- Conforms to CATIV 150V, CATIII 300V
