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Digital Electronic Gold Purity Tester Machine Digital Electronic Gold Purity Tester Machine Digital Electronic Gold Tester Machine , Gold Densimeter , Gold Purity Tester USE HBM Sensor Description: Suitable for: Jewelry industry, Bank, Pawn industry, Gold and Precious Metal research lab. Principle: According to the buoyancy method of Archimedean principle, can show gold karat, density and purity% rapidly and accurately. Specification: Model MDJ-300K The maximum weight 300g Weighing Range 0.005-300g Weighing precision 0.01g Density precision 0.001g/cm3 Standard size of water tank 150*100*90mm Functions: Only two weighing steps, karat, density and purity of gold can be showed rapidly and accurately. With the mixture proportion function, it can be used for testing density and purity of platinum, silver and other metals. With the special software design, it can directly and circularly show the gold karat (including gold-copper-silver, gold-silver, gold- copper), gold purity%(including gold-copper-silver, gold-silver, gold-copper) With the function of HI and LO limit, the wide karat range from 9K to 24K and the HI and LO value can be set freely. No stains and scratches left on gold after testing, it doesn’t need to use the sulfuric acid solution to test the standard samples. Pure water or distilled water can be used as testing medium, it is low cost and easily got. By adopting the design of big tank, it can decrease the inaccuracy caused by supporting wire’ s buoyancy. Can’t test hollow samples and the samples with precious stones; it can be used as general balance. Standard size of water tank: 150 * 100 * 90 mm.