Instrument introduction

EDS3900 is the most economic XRF gold purity testing machine in the market. It is the classic XRF model in KEYRAY for gold purity test and it is also our best seller for years. 
Instrument Features
Quick Test
Within 30 second, you can get both the Karat value and content value of your gold sample.
Accurate
Testing result of our XRF is comparable to the fire assay.
Non destructive
XRF test will not destroy your gold sample.
Multi-functional
Besides the gold, the non precious metals, such as Pt,Pd and Ag which are frequently used in the jewelries can also be simultaneously tested by our XRF.  
Applications fields:
Jewelry factories
Jewelry shops
Pawnshops
Banks
Gold testing labs or fire assay labs

EDS3900 Precious Metal Analyzer

Performance and Configuration

Analysis Range                 1ppm to 99.99% 

Accuracy                      0.1% (Au≥96%)

Sample Form                   Solid, powder, liquid

Tube Voltage                   5KV ~ 50KV

High Voltage Power Supply       0 ~ 50KV

Camera                       HD camera

Filters                        Selectable customized switches

Detector Type                  Proportional Counter tube

Multichannel Analyzer           Multi channel simulation

Sample Chamber Size            310 *280 * 60 (mm)

Test Time                     10sec ~ 100sec

Measuring Element             Au  Ag  Pt  Pd  Cu  

Analysis Software               Qualitative and quantitative analysis software

External Dimensions             400 * 430 * 350 (mm)

Weight                        33Kg

Instruments Environmental Requirements

Ambient Temperature          -5 ° C ~ 40 ° C (Suggested that in air conditioning room)

Relative Humidity              15% ~ 90% 

Power Requirements           AC 220V ± 5V, 50/ 60 Hz

No high power electromagnetic and v

Your Partner 

         KEYRAY is committed to develop a long-term cooperation partnership with precious metals dealers, precious metals refining industry and companies in the manufacturing industry. We understand this industry, and we believe that our instruments will help customers achieve business success. The analyzers that we manufacture have more reliable performance and more accurate test results. We try our best to provide you with high quality technical support to ensure your investment to get satisfactory returns.

Satisfactory Return on Investment

      As long as the users need, no matter when and where, XRF analyzer can finish thousands of times of analysis operation during a day. Using XRF analyzer for testing, it won’t damage products. Customers almost don't need to prepare samples and we can get the reliable results in a few seconds .This means that when customers need to analyze the samples, no need to send samples to the lab, also no need to depend on guessing, and you can immediately get the analysis results from our instruments.

Excellent Customer Support

From the initial to provide you with product demonstrations, to determine the type of the analyzer for you, to provide comprehensive training for you and answer your any question, and to meet your needs in the future, we will always provide you with support and help at any time. Our customer support department provides clients with a full range of training services, and we can make a satisfactory answer for the customer's requirements in time. So we feel very proud about this. The customer satisfaction is our permanent goal.

Theory of Business

Based on science and technology! Based on innovation! Quality first! Renowned the world over!

Corporate Vision

Become the global core strength in the field of nondestructive analysis.

Enterprise Mission

Popularizing the common sense of nondestructive analysis and eliminating the false and inferior metal products.

Company Introduction

◆Keyray Instrument Inc is a high-tech enterprise with independent intellectual property rights, registered capital of 5 million RMB. 

◆The company specializes in researching , developing, producing and selling energy dispersive spectrometers, wavelength dispersion spectrometers, infrared spectrometers.

◆The company was awarded the standing director unit of China instrument industry association.

◆The company’s advantage is that we can provide customers with personalized industry solutions.

◆All the devices have achieved international CE, FCC and RHOS certifications etc.

◆Products are exported to Europe, America and Southeast Asia and other countries and regions, recording annual sales of more than 1,000 units. Domestic numerous jewelry jade quality appraisal centers, large jewelry manufacturers and jewelry retailers, all of them select and use our products.