The EDX-2 series energy scattered X-ray fluorescent spectrometer is realized by analyzing the element characteristic X-ray wavelength and strength of the element emitted by the sample. The elements contained in the sample are determined according to the different elements characteristics of the X -ray wavelength, and the content of the element in the sample can be determined by comparing the strength of the different elemental spectrum.

Typic Application 1（LISUN Model：EDX-2A、EDX-2AB、EDX-2AC、EDX-2ABC、EDX-2T）: Restriction of Hazardous Substances (RoHS) 1.0 Directive Testing for electronic and electrical products, components, plastics and plastic parts. Click here to download the ROHS 1.0 test report sample.

Typic Application 2（LISUN Model：EDX-2AB、EDX-2ABC、EDX-2T）: Elements Analysis for precious metals, alloys, metals, coatings and other elements with absolute content value testing. The Periodic Table of Elements from 16-S to 92-U. (Note: EDX-2T can test all elements from 11-Na to 92-U). Click here to download the alloy analysis test report sample.

Typic Application 3（LISUN Model：EDX-2AC、EDX-2ABC、EDX-2T）: Coating and Plating Thickness Measurement Function with absolute thickness value testing. Click here to download the coating and plating thickness test report sample.

1. Product Instruction | What RoHS means?
RoHS is a mandatory standard established by EU legislation. Its full name is “Restriction of Hazardous Substances” (Restriction of Hazardous Substances). This standard has been formally implemented since July 1, 2006 which is mainly used to regulate the materials and process standards of electrical and electronic products. And making it more conducive to human health and environmental protection. The purpose of this standard is to eliminate six items of lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, and polybrominated diphenyl ethers in electrical and electronic products, and stipulate that the content of lead should not exceed 0.1%. The new directive 2011/65/EU (RoHS 2.0) to replace the 2002/95/EC (RoHS) new directive will take effect on July 21, 2011. Comparing RoHS2.0 and RoHS, the main changes are as follows:
- Add Appendix I and IA of the original WEEE Directive as two appendices of RoHS.
- From 1^st,January, 2014 to 1^st, January, 2017, medical equipment and monitoring equipment will be gradually included in the scope of RoHS control.
- Manufacturers need to make an EC declaration of conformity and affix the CE mark before the product goes on sale. After the sub-electrical products on sale in market, relevant technical documents and EC declarations of conformity must be retained for at least ten years.
- If the substances listed in Appendix III (such as HBCDD, DEHP, BBP, DBP, etc.) cause the human health and the environmental unacceptable harzards, it will be evaluated in accordance with the provisions of Articles 69 to 72 of the REACH Regulation, and this substance will be further included in the restricted substances in Appendix IV.

The main test substances in RoHS requirements are as follows:

2. RoHS Test Method | How to do the RoHS Test?
“Testing Methods for Toxic and Harmful Substances in Electronic Information Products” (hereinafter referred to as “Testing Methods”, the standard number is SJ/T 11365-2006) limits the testing methods for harmful elements in the RoHS requirements. Among them, X-ray fluorescence spectroscopy (XRF) has been established as a quick screening method as the fastest and most convenient method. X-ray fluorescence spectroscopy (XRF)/RoHS Analyzer can be used to accurately test the corresponding standard samples of the five elements of lead (Pb), mercury (Hg), cadmium (Cd), chromium (Cr), and bromine (Br).

3. Advantages and features of EDX-2A RoHS tester:
- High-resolution, high-definition camera for easy operation.
- All imported core technology and original parts from Europe and America.
- Camera and cabin lighting system, real-time view the test position of the sample.
- Reliable power supply over-current and short-circuit protection to ensure equipment safety.
- Automatic control test system, convenient for customers to use.
- Already include the standard silver plate and standard EU ERM EC681m material with calibrate certificate.

4. Instrument performance and configuration:
- Analysis range: 1ppm to 100 %
- Accuracy: RSD≤0.5% Au≥90%
- Test the physical state of the sample solid, powder, liquid
- Light tube voltage: 5KV ~ 50KV/ Optional imported light tube
- High voltage power supply: 0 ~ 50KV; Light tube flow: 0μA ~ 1,000μA
- Camera: HD camera; Collimatorfilter automatic switching system
- Detector: Si-Pin/SDD(You can choose one)
- Resolution: Si-pin160±5eV/SDD135±5eV
- Multichannel analyzer; Testing time: 30sec ~ 100sec
- ROHS analysis of common elements: Cl, S, Pb, Hg, Br, Cr, Cd, Ba, Sb, As and ect.
- Qualitative and quantitative analysis software supports Win7, Win8 and Win10, Win11.

LISUN EDX-2A RoHS Testing Equipment – Element Analysis – Thickness Gauge (EDXRF) – After-sales Frequently Asked Questions (FAQ)
LISUN EDX-2 Energy Dispersive X-ray Fluorescence Spectroscopy were in the market for more than 10 years, LISUN engineers service team already summary the most of the After Sales Questions and Answers in the above link. Please read it carefuly, you can solve the most of the problems by yourself if you have some questions while using the instruments. LISUN will be continue to update this pages and more FAQ can be found in this topic link.