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300g Mixed Multifunction Metal Precious Metal Analyzer Machine Testing The

300g Mixed Multifunction Metal Precious Metal Analyzer Machine Testing The

Brand Name : Quarrz
Model Number : AU-300K
Certification : CE, FCC
Place of Origin : dongguan
MOQ : 1
Price : USD399-USD1299
Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram,other
Supply Ability : 100 Set/Sets per Month
Delivery Time : 2 days for Densimeter Balance , Densimeter Gold , Gold Karat Pur
Packaging Details : 42 X 16 X 32cm for Densimeter Balance , Densimeter Gold , Gold Karat Purity Balance Machine
Power supply : Europe standard AC 100V - 240V
OEM service : Yes
Density resolution : 0.001 g/cm3
weight resolution : 0.005g
Minimum weight : 4g
Interface : RS-232
usage : gold densimeter
displaying testing result : karat value,purity percentage,weight,density
testing before delivery : yes
after-sale service provided : yes
Usage : gold precious metal tester
Measuring principle : Archimedes principle
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300g Digital Electronic Densimeter Balance , Densimeter Gold , Gold Karat Purity Balance Machine,Electronic Precious Metal Tester


pawnbroking,jewelry industry,banking industry,jewelry testing center,mining industry,precious metal recycling,precious metal materials researching laboratory.,etc.

These series instrument gold tester is the dramatic updating and upgrading products.Compared with other competing products,it has been focused on enhancing weighting resolution,simplified operation procedure and operation method,upgraded software application function,improved reliability of measuring result. offer respectively three content measuring model for gold,platinum,silver and one alloy measuring model;

No need to bundle samples.Following value can be displayed precisely and quickly with only two procedure:

(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.

Measuring Type:

Precious metal.such as gold,Karat gold,platinum,silver.

Mixed metal or other alloy metal.

Jewelry materials.such as ring,necklace,bracelet,watchband,belt fastener,gold ingot,gold bar,statue,coin.,etc.


Please check the samples to be tested firstly when do testing:

(1). products of which inside is hollow

if the hollow is closed.water or other liquids can't get access into,the samples can't be tested

if the hollow is opened,water or other liquids can get access into,the samples can be tested

(2). products set with precious stones------can't be tested

(3). products of which the density is very close to precious metal------can't be tested


  • Distinguish whether the gold,karat gold,platinum,silver,other precious metal is the genuine or not.
  • Test the purity of gold,karat gold,platinum,silver to confirm if the marked content is correct or not.
  • No need to cut samples;also it can be measured immediately.
  • Can shift to measure Karat and purity percentage of gold-silver -copper,gold-copper,gold-silver respectively.
  • Function of density measuring and normal gram scale.
  • Either water or alcohol would be as medium.
  • Function of setting actual water temperature.
  • Adopt completed injection molding PC sink(length:15.3cm X width10.7cm X 9.3cm)
  • Including RS-232 interface;It's convenient to connect PC and printer.AU-40 could be optionally availabe to print result.
  • Adopt injection moulding windproof dustproof shield;Convenient configuration;Better durability.
  • Power supply:AC 100V-240V;50HZ/60HZ(Europe standard)
  • Weight/packing size:4.5kg/length 42.5cm X width 17.5cm X height 32.5cm

Measurement Resolution and Range:

  • AU-300K weighting resolution:0.005g,minimum weight:4g,density resolution:0.001g/cm3
  • AU-600K weighting resolution:0.005g,minimum weight:4g,density resolution:0.001g/cm3
  • AU-120K,200K weighting resolution:0.001g,minimum weight:2g,density resolution:0.001g/cm3
  • 900K,1200K,2000K,3000K weighting resolution:0.01g;minimum weight:5g;density resolution:0.001g/cm3
  • K value range:9k,10k,11k,12k,13k,14k,15k,16k,17k,18k,19k,20k,21k,22k,23k,24k and % percentage content.
  • Platinum content range:PT600,PT650,PT700,PT750,PT800,PT850,PT900,PT950,PT1000 and % percentage content.
  • Silver content range:S600,S650,S700,S750,S800,S850,S900,S950,S1000 and % percentage content.
  • The proportion of copper-silver for gold-silver-copper 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.

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.

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

Specification Table:

ModelAU-300K / AU-600K / AU-900KAU-120K / AU-200KAU-1200K / AU-2000K / AU-3000K
StyleHot and ClassicHigh-precisionHigh-capacity
Maximum weight300g / 600g / 900g120g / 200g1200g / 2000g / 3000g
Weight standard deviation0.005g / 0.005g /0.01g0.001g0.01g

Minmum measuring sample

Reference weight

4g / 4g / 5g2g5g
Density resolution0.01g/cm30.001g/cm30.001g/cm3
Sink sizeLength15.3 cm×width10.7 cm×height9.3cmLength20.3 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 %
PlatinumPT600 ,PT650,PT700,PT750,PT800,PT850,PT900,PT950,PT1000 & content percentage %
SilverS600 ,S650,S700,S750,S800,S850,S900,S950,S1000 & content %
Measuring principleArchimedes buoyancy method
Measuring timeAbout 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 settingWater temperature setting,measuring medium density setting,air density setting,main materials and secondary materials density setting,copper-silver proportion setting
Copper-silver proportion rangecan 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 methodSingle 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 interfaceStandard RS-232 interface
Optional accessoriesAU-40 printer,AU-40A data connecting line
Power supplyAC100V~240V 50HZ/60HZ Europe standard
Gross weight/size4.3kg/ Length 42.5 cm× width 17.5 cm×height 32.5cm
(no including weights)

Advantage for Quarrz's Precious Metal Tester Gold Tester:

  • Wide karat value for gold display from 9K to 24K and % percentage content.
  • Wide PT value for platinum display from PT600 to PT1000 and % percentage content.
  • Wide S value for silver display from S600 to S1000 and % percentage content.
  • Adopt completed testing board and unobstructed without lifting lid design,more simpler operation,also makes the measuring result more reliable.
  • Two procedure; No need to bundle samples.It is convenient for multiple testing.
  • No stains or scratches will be left on samples after tested
  • Multi-function as density meter and gram scale.
  • Upgrade circuit board;make the testing result more stable and reliable.
  • Testing frame has been improved;more larger measuring space.
  • Equiped with windproof cover.


(1) Is this gold tester machine for professional use in jewellery store? is application to bank,jewellery store,pawn shop,cash for gold,collecting coins.,etc.

(2) What the gold tester machine can measure?

Precious metal.such as gold,Karat gold,platinum,silver.
Mixed metal or other alloy metal.
Jewelry materials.such as earring,ring,necklace,bracelet,watchband,belt fastener,gold ingot,gold bar,statue,coin.,etc.

(3) What the gold tester machine can display?

karat value,purity percentage,density,weight for gold

PT value,purity percentage,density,weight for platinum

S value,purity percentage,density,weight for silver

percentage content,density,weight for other alloy.

(4) Does this item can read gold purity even if there is a mark says 14K but it is really 12K? does.

(5) What's the accuracy on reading?

Density resolution:0.001g/cm3
Weight resolution:0.005g/0.001g
K resolution:1K/0.1K/0.01K

(6) What's size of sample you can put inside the gold tester machine?

for DH series:16.9cm X 9.8cm X 8.3cm
for AU series:15.3cm X 10.7cm X 9.3cm

(7) Does this machine can be connected with PC,and printer? has the RS-232C interface.the measuring data can be output through PC and printer.
The printer is optional when customers make purchasing.

(8) Does this machine can test the specific gravity of gemstones? does.
Also it can test the specific gravity for all kinds of solids materials.

(9) Does this gold tester machine can be used as scale?
Yes.This machine has scale function.

(10) What's the power supply?
The default power supply is Europe standard AV100V - 240V.based on customers' requirement.

Customers can choose: Europe type,British type,American type;Australian type.

(11) What's the quality assurance?
The warranty is for two years from the date of receipt.if any parts broken and verified it is within the range of quality assurance(please refer to our quality assurance policy).we shall send new accessories or new machine for replacement.

Anti-counterfeiting Announcement:

The bad and good products is intermingled on market today.Most customers had suffered a lot from the brand replacement products,shell brand products,simulation products,and transferring after-sale service products.To protect your rights,please identify seriously when choose goods.Following is the method to distinguish QUARRZ brand product.

  • Method one:Start up,machine will display in sequence:brand,model(such as QUARRZ,AU-300S)
  • Method two:After starting up,press ZERO button and B button at the same time,the machine will display in sequence:brand:model,factory number.of which information correspond to the one marked on machine.
  • Method three:Check security code that generate automatically by machine number.
Our Advantages:

AU-300K Details NEW NEW

Application Notes:

1.Measuring Type:

Ø Precious metal.such as gold,platinum.,etc.

Ø Mixed metal or other alloy metal.

Ø Jewellery materials.such as ring,necklace,bracelet,belt fastener,coin.,etc.

2.The testing result would not be correct with the following situation

Ø The samples with hollow inside which makes the air can't be eliminated totally.

Ø There is lots of bubbles,dust or dirty on the surface of sample.

Ø The density of sample is very close to precious metal(gold=tungsten=19.32)

Ø The samples set with precious stone

3.To make sure get the accuracy result,please be noted below:

Ø please install the accessories correctly.

Ø please keep no wind or vibration when doing testing.

Ø please place the machine on the flat place.

4.Please do not use the corrosive solution

5.Please do weight calibration firstly before using

6.The K value and PT value is calculated by specific gravity value.

7.Please be noted below when using.

Ø Please place sample with tweezers into water when test weight in water.please do not throw with hands directly,thus may lead the water splash out to machine,which may have bad influence on main board and load cell.

Ø Please clean water tank and remove out socket if long time no use

Ø The capacity is 300g.please do not overload.

Product Tags:

precious metal analyzer machine


precious metal testing equipment

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