Four-probe resistivity / square resistance tester

Mainframe technology to a number of (1) measuring range Resistivity can be measured: 0.0001 ~ 19000Ω cm Sheet resistance can be measured: 0.001 ~ 1900Ω (2) constant-current source Output current: DC 0.001 ~ 100mA continuously adjustable five-gear Range: 0.001 ~ 0.01mA 0.01 ~ 0.10mA 0.10 ~ 1.0mA 1.0 ~ 10mA 10 ~ 100mA Precision constant current: the files are less than ± 0.05% (3) DC Digital Voltage Meter Measuring range: 0 ~ 199.99mV Sensitivity: 10μV Basic error: ± (0.004% full scale reading +0.01%) Output power: ≥ 1000ΩM (4) power supply AC 220V ± 10% 50/60 Hz Power: 12W (5) the use of environment Temperature: 23 ± 2 relative humidity: ≤ 65% Strong electric field without interference, without exposure to direct light (6) weight, volume Host Weight: 7.5kg Size: 365 × 380 × 160 (unit: mm in length × width × height) &nbsp Porry Wang International Dept.

Manager Midwest Group Midwest, No.1, 3rd. Street, Shangdi, Haidian, Beijing, China, 100085 nbsp; ext. 249