M24 Electronic Gold Tester 9 through 24K Gold With Gel

$209.95

M24 Gold Tester 9 through 24

RS Mizar now brings you the fastest and easiest Gold Analyzer for all the trades where jewelry and "Karat Gold" have to be quickly and accurately evaluated. The M24 gold tester determines gold karat values equal to or greater than 9K, 10K, 12K, 14K, 16K, 18K, 20K, 22K, and 24K and tests all color gold alloys.

RS MIZAR, INC. has been issued two Patents for its development on the M24 full range Gold Tester. This new process gives accurate and non-destructive test results all the way to 24K gold. It can help determine Gold Karat value in as little as 2 seconds.This process can distinguish non-gold and gold plate up to 5 millions of an inch (1/8 micron) from true "Karat Gold" without the destructive Fire Assay testing, which would change the value of the jewelry.

  • Non-destructive testing Can determine Platinum
  • Auto shut off increases battery life. (Approximately 14 seconds of no use)
  • Can distiguish between Gold Flash and Plate from Solid Gold.
  • 1 year manufacture warranty. Seller does not provide warranty, exchange or return of this product once used. Warranty does not include battery, solution, or improper use.
  • Battery operated (1 - 9v battery included)
  • Test times:
    • 2 seconds from 9-14 Karats
    • 2-15 seconds from 16-24 Karats
  • Delay before beginning test: 12 seconds
  • Gold colors: Yellow, White, Red, Green
  • Non-destructive testing
  • Distinguishes Gold Wash and Flash from Solid Gold. Can be used to distinguish Gold Plate from Solid Gold.
  • Dimensions:
    • Length ....................................................................................... 6.3"
    • Width..........................................................................................4.0"
    • Depth..........................................................................................1.5"
  • Weight: With Battery............................................................8.0 oz.

Operating Temperature: 65°F to 90°F (19° C to 32° C)

CONTENTS OF PACKAGE

1. M24 ELECTRONIC GOLD TESTER
2. ERASER
3. TESTING SOLUTION [No. 1995]
4. OWNERS' MANUAL
5. ERASER PENCIL

PRECAUTIONS

· After testing Gold item, it should be cleaned with a buffing wheel. However, it must be cleaned with the gray eraser before any new test because of the residue left on the Gold from the previous test.
· Improper of insufficient cleaning of the test Gold before testing can increase the karat value readings.
· Your unit is operating correctly if occasionally you do get a reading in the next range. This can happen when the karat value of the Gold you are testing is very close to the odd karat value, i.e. 17K, 19K, etc. Your unit is operating correctly when this occurs and indicates the Gold you are testing is very near the in-between value.
· The excess air must be squeezed out of the test solution bottle between tests or when stored. Squeezing out the excess air keeps the solution fresh. When all of the air cannot be squeezed out it needs to be replaced. In any case, the bottle must be replaced 6 months after first opening! "Un-fresh" test solution can cause the karat readings to go lower by one range. You should always have a fresh bottle of test solution available. Record the date the bottle was opened.

DO'S & DON'TS

1) Don't use Testing Solution for more than one test; errors will result.
2) Don't touch Test Gold or Alligator Clip lead to Reference Gold at bottom of Test Well. If this happens remove liquid and re-do test procedure.
3) Don't let Alligator Clip touch liquid.
4) Don't leave liquid in test well. This will void your warranty.
5) Do clean Test Gold before testing if it isn't bright and shiny. Unclean Gold may result in inaccurate readings.
6) Do keep Gold chains very tight (link to link) during testing. Use the fewest number of links (one if possible) between the Alligator Clip lead and the Gold link to be immersed in to the liquid. Three problems can exist with testing chains:

a. There may be dirt or contamination between links that would require intensive cleaning (i.e. ultrasonic) before testing.
b. Some chains, especially certain European manufactured chains have a thin non-metallic coating that must be removed from an area before testing. The eraser pencil may be used to remove this coating.
c. When testing chains, remember that the solder often used at the link(s) is of a lower Karat than the rest of the chain. Therefore, avoid testing in that area.

7) Do make sure good contact is achieved between the Test Gold and the Alligator Clip lead. If the object to be tested is too large to fit in the clip lead, simply hold the clip lead lightly against the Test Gold during test.
8) Do always clean the Test Gold with the Gray Eraser before retesting in the same location. Pink eraser can be used but it requires considerably more pressure and effort for accurate readings.
9) Do replace the Testing Solution every 6 months after opening.
10)Do use only within Operating Temperature 65°F-90°F.

NOTES
1) In the event the Alligator Clip contacts the testing solution, the Alligator Clip must be rinsed thoroughly with water and dried before using again.
2) WARNING: Eye Hazard -- Read warning label on bottle of Test Solution.
3) IMPORTANT: The Testing solution is sensitive to exposure to air. Minimize the time cap is loose on bottle.

It is strongly recommended that users of the M24 Gold Tester practice testing for Gold plate on a few items believed or known to be Gold plated. A few sets of practice runs described under "General Description of Procedure" will impart confidence to the point that the user will find testing for Gold plate to be fast and easy.

GOLD COMPOSITION

There are four basic colors of Gold:

1) Yellow..................................................................most common
2) White....................................................................second most common
3) Red(Pink/Rose).......................................................uncommon
4) Green....................................................................very uncommon

The colors are obtained by the use of two or more varied quantities of base metals. These base metals are Silver, Copper, Zinc, and Nickel.

Not only are there four basic colors but each color can and does vary the percentages of the base metals. As such, there is no specific formula for each color of Gold. This makes for a range of readings in each color plus a variation of each color at any specific Karat mixture.

The M24 Gold Tester can distinguish between Karats of the two popular colors, Yellow and White, by means of color selector buttons. Most red color Gold can be determined by using the White range selector button. Most green color Gold can be determined by using the Yellow range selector button. There are no ranges that are compatible for use on dental Gold alloys.

Though the M24 Gold Tester is a highly accurate, precision instrument for determining Gold Karat values. However, should any disagreement arise with its use, it is recommended that confirmation be obtained with a Fire Assay examination process. This devise, although highly accurate, should be used as a guide to Gold Karat values. The exactness of the device depends on adherence to the instructions provided in this manual and the knowledge of the base metal alloys which are involved.

TESTING FOR PLATINUM

Platinum is indicated when the test-item reads 22K or higher. That is because White Gold above 18K is virtually non-existent.

TESTING FOR PALLADIUM

Both Palladium and Platinum will indicate Karat Gold if tested. Platinum jewelry is usually traded at a higher price than Gold jewelry, so Platinum is seldom marked as Gold. Palladium, however, is one-quarter to one-third the price of pure Gold, so it should be noted that pure Palladium may read as medium Karat Gold. Palladium prong settings are sometimes soldered into diamond solitaire White Gold rings. If Palladium is suspected, it is easily distinguished from Gold as nitric acid will quickly turn Palladium dark, Gold is not affected in this way.

TABLE OF STANDARDS

Karat Decimal Gold Gold % Part Per 1000

24 K 1.000 100.0 1000
22 K .917 91.7 917
20 K .833 83.3 833
18 K .750 75.0 750
16 K .667 66.7 667
14 K .583 58.3 583
12 K .500 50.0 500
10 K .417 41.7 417
9 K .375 37.5 375

Replacement TESTING SOLUTION [No. 1995]
Replacement of the Testing Solution and Cleaning Solution can be obtained from your supplier
(click here to add to your cart) 

R S MIZAR, Inc./Oris Nelson Enterprise, Inc. shall not be held legally liable or responsible for any error in determining the Gold content of any object using the M24 Gold Tester.

This Item can not be returned for a refund. All sales are final.

The M24 Gold Tester: U.S. PATENTS 5080766, 5128016 OTHER U.S. AND INTERNATIONAL PATENT RIGHTS PENDING


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  • Model: M-24
  • Shipping Weight: 2lbs
  • 0 Units in Stock
  • Manufactured by: Mizar / Oris Nelson

This product was added to our catalog on Wednesday 20 August, 2008.

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