This tester is for measuring the electrical conductivity properties of carbon materials. The tester used hydraulic drive system as a loading body, whose transmission smoother than great loading. It works with automatic display pressure standard dynamometer, high-precision power source steady flow, automatically display current, voltage. The instrument tests resistivity powder materials based onISO 10143-2019Carbonaceous materials for the production of aluminium. Calcined coke for electrodes. Determination of the electrical resistivity of granules, YS / T 587.6 Calcined coke for prebaked blocks-Testing methods-Part 6: Determination of electrical resistivity of granules.
Principle: A test portion of the granular carbon is placed in a cylindrical holder which has electrical contacts at the top and bottom. A fixed pressure is applied to the test portion to ensure good electrical contact and a fixed, constant direct current is applied. The voltage drop and the height of the column of granules are measured and the electrical resistivity is calculated.
Main technical parameters: 1. Max pressure: 300Kg; 2. Max increasing distance: 100mm; 3. Current output: 0 ~ 5A, accuracy: 0.01A; 4. Input Voltage: 0 ~ 200mV, accuracy: 0.01mV; 5. Powder cylindral diameter: small tube≥ 20mm; large tube≥ 30mm; 6. Inside sectional area: small tube≥ 314 mm2, large tube≥ 700 mm2; 7. Distance between terminals: small tube 10 mm, large 20mm; 8. Resistivity range: 1 ~ 1800μΩ·M. 9. Power supply: 220V,50HZ
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