Product Details
Overview
Nondestructive Precious Metals Assay and Karat ID
XRF is a widely used, proven, and accepted method of chemistry analysis and determination of purity and fineness of precious metals. XRF analysis is a multi-elemental testing alternative that is quicker and less expensive than fire assay and chemical tests. XRF provides on-the-spot analysis of your silver, platinum, and PGM metals and impurities, making it an easy way to boost customer confidence and ensure dealer reliability.
Given the current high value of gold, quantifying its fineness and purity is more critical than ever. Whether you buy gold, sell or produce jewelry, fabricate metal, or recycle scrap metal, you need a fast, highly accurate method to determine karat (gold content) for quality control and pricing.
The ESI Gold Expert XRF analyzer is an easy-to‑use, cost-effective method to obtain alloy chemistry and karat classification with one nondestructive and nonintrusive test. Additionally, an exclusive ESI Gold Expert software feature helps identify gold-plated objects and sends an alert to the screen.
Features and Benefits
>The ESI Gold Expert is designed to be compact, taking up minimal space.
>An easy-to-use analyzer providing karat and compositional analysis results with one push of a button.
>Accurate chemistry and karat results within 10 seconds.
>Quickly and easily create result certificates
>The ESI Gold Expert can be networked for easy access to testing results as they are being generated.
>The analyzer is a safe and secure closed-beam system that requires minimal training. One-button operation provides the most friendly customer experience.
With the ESI Gold Expert XRF Analyzer:
>Price cash-for-gold pieces quickly and accurately
>Identify and characterize a wide range of alloys including silver, platinum, and others
>Identify poison elements in samples
>Manage quality control of refining and melting operations
>More options for coating thickness measurement and alloy PMI
Typical Applications
● Gold Karat Identification
● Coating thickness measurement
● Alloy analysis and Alloy PMI
● Hazardous metals Inspection: Hg, Cd, Cr, Pb
● Electroplate liquid analysis
The ESI Gold Expert XRF
Specifications
The Compact Professional Precious Metals Testing Solution
The ESI Gold Expert offers the best of both worlds. A handsome analyzer fit for the consumer showroom environment, it can also be networked for high productivity QA/QC jobs. The ESI Gold Expert can be transported easily to any location where testing is needed.
● Operates completely independent of a PC
● Integrated camera indicating sample analysis points
● Safe, closed-beam XRF system
● Small spot collimation for analysis; ability to switch between 0.5mm，1mm and 3 mm diameter spots
● 50 W X-ray tube, 1000 µA current (max), plus optimized beam settings for accurate analysis
● Responsive, bright, color touch screen display
● Silicon PIN Detector system standard. Silicon Drift Detector system available for optimized precision on trace elements. Fast Silicon Drift Detector available for most restricted test requirement.
Customized Reporting
Data can be exported easily to spreadsheet format, and the memory can be accessed remotely when the ESI Gold Expert is networked via its Windows CE operating system. Customized result and reporting certificates, including analytical results, an image of the tested sample, the company logo, and more, can be generated via the optional PC Software with the click of a button.
ESI Gold Expert 6000 Test performance
ESI Gold Expert accuracy for Au in certified gold alloy standards
Repeatability Plot: Twenty repeat ESI Gold Expert readings on an 18k certified gold alloy standard
Accessories:
Sample cup for liquid and powders/ Ring holder
Configurations options
Our latest range of high performance analyzers to suit your analysis needs and budget.
|
Products
Model
|
EDX280D
Basic
|
EDX6000D
Standard
|
EDX9000D
Premium
|
Detector |
Proportional counter |
Si-Pin detector |
SDD detector |
Description |
D serial with external computer. E serial with integrated touch-screen industrial computer inside the machine. |
Content Range |
20ppm-99.99% |
2ppm-99.99% |
1ppm-99.99% |
Element Range |
Ti-U |
S-U |
S-U |
|
Calibrations
|
1.Gold: Ni, Cu, Zn, Ag, Au |
1.Gold: more than 20 metals
2.Alloy analysis and PMI
3.Coating thickness measurement
|
1.Gold: more than 20 metals
2.Alloy analysis and PMI
3.Coating thickness measurement
|
Calibration Mode |
Empirical calibrations |
Standardless FP+ Empirical calibrations |
Standardless FP+ Empirical calibrations |
X-ray Tube power |
50 watts |
50 watts |
50 watts |
Resolution |
900ev |
165ev |
135ev |
Test time |
60s |
60s |
30s |
Max CPS |
50.000 |
50.000 |
100.000 |
Collimator |
1.5mm |
3mm
1mm
|
1mm
0.5mm(Micro spot)
|
Precision |
<0.05% |
<0.05% |
<0.02% |
The ESI Gold Expert 9000 is recommended for refiners who need the utmost in analytical precision and fast reading times. The ESI Gold Expert 6000 is suggested for general karat and trading applications. The ESI Gold Expert 280 is recommended for high purity gold analysis with less metal impurities inside the sample.
How XRF works
X-rays have a unique ability to ionize or “excite” elements present in materials. When ionized elements return to a relaxed or stable state, they emit fluorescent x-rays whose energy levels are “signatures” of specific elements emitting these x-rays.
ESI XRF analyzers harness this phenomenon by sending ionizing x-rays into a sample, measuring the energy levels of the returning fluorescent x-rays (the elements’ “signatures”), and counting these x-rays to determine the relative concentration of each individual element present.
Through complex, iterative calculations, the onboard computer provides a complete elemental analysis of the sample and displays it to the user. All of this is done in mere seconds, with accurate results typically provided in less than 5 seconds. The analysis results are stored locally on the analyzer in a Excel test report.
http://www.esi-xrf.com/
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