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207, Namdhari Chamber, 9/54, D.B. Gupta Road, Karol Bagh
Delhi, Delhi-110005, India+(91)-22-61393000
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Gold Purity Checking Instruments

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Contech Instruments Limited Is a Manufacturer Supplier and Exporters of wide range of GOLD TESTING MACHINES.

Measurement based on Archimedes’ principle incorporating High
Precision electronic weighing scale.
Accurate, Reliable and non destructive testing method.
Provision to enter water temperature for temperature compensation of
density value.
Over load and shock load protection for weighing scale.
Display of gold purity in % as well as karat.
Gold purity checking in gold-copper-silver, gold-silver, gold-copper alloys.
Can be used to check other precious metals like platinum, palladium etc.
by using mixture proportion function.
RS-232 interface for printer / computer connection.
Spacious tank for big ornaments, special design of tank to reduce buoyancy error.
Hollow ornaments, ornaments inlaid with stones cannot be checked.
Models CTL-300 CTL-600
Density Accuracy0.01 g/cc0.01 g/cc


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