• Gold Purity Testing Machine

Gold Purity Testing Machine

The provided testing machine is widely used in jewelry shops to give an exact reading of gold purity.

Product Details

Quick Details



Driven by immense domain expertise, our company is affianced to present a broad range of Gold Purity Testing Machine. The provided testing machine is widely used in jewelry shops to give an exact reading of gold purity. Under the guidance of our ingenious professionals, this testing machine is manufactured with utmost efficiency using optimum grade components. Moreover, this Gold Purity Testing Machine can be purchased from us in vivid technical specifications.



  • Robustness
  • Light weight
  • Overload warning
  • Longer service life



Specification Table




AU-300K / AU-600K / AU-900K

AU-120K / AU-200K

AU-1200K / AU-2000K / AU-3000K


Hot and Classic



   Maximum weight

300g / 600g / 900g

120g / 200g

1200g / 2000g / 3000g

Weight standard deviation

0.005g / 0.005g /0.01g



Minmum measuring sample

Reference weight

4g / 4g / 5g



Density resolution




Sink size

Length15.3 cm �width10.7 cm �height9.3cm

Length20.3 cm �width15.7 cm �height11.3cm

Measuring function

(1)karat value,percentage content,density for gold

(2)PT value,percentage content,density for platinum

(3)S value,percentage content,density for silver

(4)percentage content,density for other alloy.

Gold K value

(9 ,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24)K  &content percentage %


PT600 ,PT650,PT700,PT750,PT800,PT850,PT900,PT950,PT1000  & content percentage %


S600 ,S650,S700,S750,S800,S850,S900,S950,S1000  & content %

Measuring principle

Archimedes buoyancy method

Measuring time

About 5 to 20 seconds

Measuring procedure

(1)Measure the weight in air firstly,press ENTER button.

(2)Place the sample into water to measure weight in water.Press ENTER

button.display result.

Parameter setting

Water temperature setting,measuring medium density setting,air density setting,main materials and secondary materials density setting,copper-silver proportion setting

Copper-silver proportion range

can be shifted cyclically with 9/1,8/2,7/3,6/4,5/5,4/6,3/7,2/8,1/9.the default setting is 7/3.

Calibration method

Single button calibration,automatic testing

      Standard accessories

(1)Host,(2)Sink,(3)Measuring plate,(4)Tweezers,(5)Thermometer,(6)weight,(7)windproof dustproof cover(8)One set of measuring gold dust accessories(9)Power supply

       Data interface

Standard RS-232 interface

       Optional accessories

AU-40 printer,AU-40A data connecting line

       Power supply

AC100V~240V  50HZ/60HZ   Europe standard

Gross weight/size

4.3kg/ Length 42.5 cm width 17.5 cm �height 32.5cm
(no including weights)

Gold Purity Testing Machine

Company Profile

Dongguan HongTuo Instrument Co.,Ltd has been specializing in density testing field on developing, innovating and producing since the year it was establised. and has been devoting to provide densimeter with high precision, easy operation and good durability for years. Nowadays it's brand DahoMeter has became the most well-known professional densimeter brand in China after got great efforts for decades. It is the one can support a wideness of field including solid, porosity solid, powder, liquid., etc and other testing program related to density.

Daho Meter is the brand that has the largest market share in China, along with the best quality and the ability to provide the completed service, we are expanding the business to abroad.
Core competitiveness is the soul of brand to survive and develop. what is the utmost advantage of Daho Meter is professional, technology, quality and service. we understand deeply that the key to win market is based on the satisfaction of customers, therefore, professional technology, reliable quality and in-time service would be the necessary elements that service customers better. On the other hand, Daho Meter carry out the management philosophy completely which is "customer priority ,quality first ,service winning"and the service spirit which is "quick response, reliability, thoughtfulness"
The ability to serve and service station is the mirror to show strength of brand. as well it is the visible tool to support customers. Daho Meter pay much attention to the training staff about technology to make sure customers would get the reliable products and service. also ensure the ability to get through the whole process, such as technical consultation, business handling, installation and debugging, after-sales service., etc. Daho Meter set up 4 different customer service center around in China, they are located respectively in Dongguan, ShenZhen, BeiJing, and HangZhou. In Dongguan, we built the Testing Center in Aug.2013.All in all, what we did is to make improvement on quality service to meet all kinds of customers'demands.
As the pursue for excellent quality and considerate service, Daho Meter's brand is getting stronger and stronger step by step through serve customers beyond their expectation. Gradually market speak well of this brand. and finally customers place dependence on it. With this kind of help, Daho Meter advance in the forefront of the density filed.
Future depends on where we stand, innovation can make dream came true. the goal Daho Meter is about to hit is to become the global leader of densimeter brand. we will stick on the professional road, keep the pragmatic and pioneering spirit,to provide support to improve analyzing testing precision for all industries and make contribute to sustainable development for society, also make our pygmy effort for "Chinese Dream"as well.
Dongguan HongTuo Instrument Co.,Ltd


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