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MDJ-300K Gold Purity Testing Machine/Gold Tester Machine / Electronic Gold Tester NEW USA
$427.25
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Description
The MDJ-300K is a digital electronic gold purity tester machine that uses the non-destructive method of measuring density to determine the purity of precious metals like gold, silver, and platinum. It works by taking two weight measurements, one in air and one submerged in water, and then the machine’s software calculates the density, purity, and Karat value, which are displayed on a digital screen. This type of tester is commonly used in jewelry shops, pawn shops, and precious metal research labs.Â
How it works
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- Non-destructive testing:Â The machine measures the object’s density to determine its composition without damaging it.
- Density testing method:Â It operates on the principle of density measurement, which is calculated from the object’s weight in air and its weight when submerged in water.
- Digital display:Â The machine’s screen shows the calculated results for density, weight, and purity (including Karat).
- Wide applicability:Â It can test the purity of various precious metals including gold, silver, platinum, and K gold.
- Limitations:Â It cannot test hollow items or samples with precious stones, and it can be used as a general balance for weighing purposes.Â
Key features
- Rapid and accurate:Â It can quickly and accurately display the Karat and density of gold with just two weighing steps.
- Simple operation:Â The process involves two simple weighing steps.
- Water medium:Â It uses pure or distilled water, which is inexpensive and easy to obtain, as the medium for testing.
- Built-in rechargeable battery:Â The machine includes a rechargeable battery for portability and uninterrupted use.
- HI and LO limit function:Â The machine has a function to set high and low limits for the Karat range from 9K to 24K, according to the user’s requirements.
- Large tank design:Â The design of a large water tank helps decrease inaccuracy caused by the supporting wire’s buoyancy.Â
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