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AU-300K Gold Karat Measuring Device,Gold Carat Measuring Instrument

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

These series instrument 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:0.01g/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)Place sample on testing board to measure weight in air,press ENTER key.

(2)Place the sample into water to measure weight in water.Press ENTER key.result will be displayed.

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

The Advantage for Quarrz's Precious Metal 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.

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.

 Packing size:42 X 16 X 32cm for gold purity testing machine

Gold purity testing machine,gold karat meter:

As leading manufacturer of densimeter,we guarantee below:

• 100% Competitive price    we are the original manufacturer of densimeter for years, the large scale production make our products more competitive, that’s the reason we are very confident to offer the most possible competitive price for the same level testing instruments in the world.
• High quality standards   we have the powerful professional researching and technology team to support quality;Our quality has been proved by the good market reaction for years;Our product are built to meet the industrial standards and global standards;Every instrument get checked and approved by our QC before delivery.
• Faultless service   we have the professional customer service team to provide the one to one service for you;we can help you to enjoy the one-stop service without any worries;we have the completed after-sales service policy and quality insurance policy;we guarantee instruments for one year and life-long maintenance(Gold Purity Tester for two years)
• Efficient logistics   we have the stable partner to help us to deliver the goods to the any corner of the worldwide shortly.Air shipment;International express:DHL/UPS/FEDEX/TNT(5 days to 7 days)
• OEM service   We are the original manufacturer of densimeter,that is verified by the third party and Alibaba on site;We can provide you OEM service and print your logo on the instruments