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| Brand | GuanCe |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | GCGEST-125 |
| Price | USD 1,560 (FOB Beijing) |
| Measurement Principle | Four-Terminal DC Voltage-Current Method (Constant Current Source + High-Impedance Voltmeter) |
| Resistivity Range | 1.0×10⁻⁴ – 1.0×10⁵ Ω·cm |
| Resolution | 1.0×10⁻⁶ Ω·cm |
| Voltage Ranges | 2 mV / 20 mV / 200 mV / 2 V |
| Voltage Accuracy | ±(0.5% rdg + 2 digits) for 20 mV–2 V range |
| Current Outputs | 10 μA, 100 μA, 1 mA, 10 mA, 100 mA |
| Current Accuracy | ±(0.5% rdg + 2 digits) |
| Electrode Contact Width | 5 mm |
| Electrode Contact Force | 0.6 N |
| Sample Thickness Input | Manual entry via front-panel keypad |
| Display | Triple 4½-digit LED (voltage, thickness, resistivity) |
| Power Supply | 220 V ±10%, 50/60 Hz, <50 W |
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