High Technic Precious Metal Tester / Gold Purity Testing Machine For Lab

 

 

Application:

 

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.

Notes:

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

 

 

Features:

 

• 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:

 

Brand	Quarrz
Model	AU-300K / AU-600K / AU-900K	AU-120K / AU-200K	AU-1200K / AU-2000K / AU-3000K
Style	Hot and Classic	High-precision	High-capacity
Maximum weight	300g / 600g / 900g	120g / 200g	1200g / 2000g / 3000g
Weight standard deviation	0.005g / 0.005g /0.01g	0.001g	0.01g
Minmum measuring sample Reference weight	4g / 4g / 5g	2g	5g
Density resolution	0.01g/cm3	0.001g/cm3	0.001g/cm3
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 %
Platinum	PT600 ,PT650,PT700,PT750,PT800,PT850,PT900,PT950,PT1000 & content percentage %
Silver	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)

 

 

 

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.

 

FAQ:

 

(1) Is this gold tester machine for professional use in jewellery store?

 

Yes.it 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?

 

Yes.it 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?

Yes.it 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?
Yes.it 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.

 

 

Understanding Karats:

 

Since gold is a soft metal, it’s often combined with other harder metals when it’s used in jewelry to provide durability. In general,gold is mixed with silver and copper(Except 24K pure gold).Gold jewelry is measured in 24 parts, called karats (K), to indicate how much of the piece is pure gold. So, if gold is 24K, all 24 parts of the jewelry are gold. Jewelry marked 22K is 22 parts gold, two parts harder metals.which means,the jewelery including 22/24(91.67%) gold,the remaining 2/24(8.3%) belongs to copper-silver mixure,or copper,or silver.Thus, the lower the number, the less gold. As such, 24K gold is the softest, while 10K is significantly the harder.Our machine can test the K value,density,purity percentage for mixure gold-copper-silver,gold-copper,and gold-silver.for jewellery manufacturer,the ratio of gold-silver-copper can be set freely to get the exact K value,density,purity percentage.

 

 

Identifying Fake Gold Jewelry by a Few Simple Tricks:

 

Check for Discoloration

Check for discoloration on the piece of jewelry in places where there would be a lot of friction, such as the inside of a ring band. If it seems to be discolored or chipped in any area, the jewelry is not real gold, and instead may be gold plated or imitation gold. Also, real gold has an even color throughout, but gold-plated items will have poor or uneven tone. Another way to check for discoloration is to wear the jewelry for a full day. If there is discoloration on the skin, the gold is likely fake.

Magnet Test

The magnet test is an easy way to ensure that gold is genuine. Pure gold is not a magnetic metal, so it will not be attracted by a magnet. Use a magnet that is stronger than a refrigerator magnet and hold it up to the gold item. If the piece pulls toward the magnet, the item may not be real gold. However, this test is not fail safe. Gold jewelry that’s more than 20 percent alloy will be slightly attracted to the magnet. In addition, some non-magnetic metals are used in counterfeit gold, so do not let this be the only test to check a supposed piece of jewelry.

Pin Test

Gold is a soft metal that is bendable and susceptible to dents. Gently stick a small pin in the jewelry. If the pin sticks and does not break, the gold jewelry is likely real. A pin will not stick into a piece of jewelry made of hard metals or alloys, and may break.

Acid Test

The acid test is a highly effective way to check for genuine gold. However, due to the corrosive acid, this test comes with inherent safety risks, so it is important to closely follow instructions. If any acid contacts the skin, flush the skin with cold water. At-home acid test kits include a test stone and a nitric acid bottle. Rub the gold jewelry piece on the stone about four times until there is a noticeable streak on the stone. Apply a drop of the acid onto the marking and observe the results. If the streak appears green, the jewelry is either a base metal or gold plated. If the streak has a milk-colored reaction, the item is gold-plated sterling silver. If there is no reaction, it is likely that the piece is real gold.

Ceramic Plate Test

This is an easy way to tell if your gold is fool’s gold. Bear in mind that your item may end up scratched. Find an unglazed ceramic plate to use. Drag your item across the surface. A black streak means your gold is not real, whereas a gold streak indicates your item is genuine.

 

 

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.