Sulfur Analyzer DSA-4

DSA-4 Sulfur Analyzer is specially designed to determine sulfur in the petroleum products. Adopt energy-dispersive principle, and with integrated design, it is rapid and accurate instrument. It can meet the requirements of National Standard GB/T 17040 and GB/T11140 on repeatability and reproducibility, and it can also meet requirements of ASTM D4294-03 on these indexes. It provides a measure to determine sulfur content during petroleum or petrochemical production process.

Specification :

1.Electromechanical integration; microprocessor control; large screen LCD display; Man-machine conversation; simple and beautiful;

2. It can determine various products and in a wide measurement range. It is rapid for analysis and it only need little standard sample.

3. Adopts fluorescence intensity ratio analysis methods, it can make correction to temperature and pressure automatically and it can also make correction to ratio of carbon and hydrogen (C/H).

4. It has self-diagnostic function, so it can determine its working state and electric parameters.

5. It takes disposable sample cell with Mylar film, so it can avoid cross contamination. Sample cell is made by a multifunction pressure device, so it is rapid and convenient. It can record sample serial number, S% (m/m), and date.

6. The sample holder can be precisely located. It can move out from inside of the instrument for sample location and anti-leakage parts replacement. It is convenient and it can avoid any contamination to detection system.

7. It can save large quantity of test data. You can browse test data and calibration curve at any time.

8. It uses a thermal printer, so it is easy to replace printing paper. It is needed to speed money on printing ribbon.

9. Equipped with a RS232 serial port, it can connect with any computer or web system.

10. Its safe X-ray protection measures can keep people from injury of X-ray radiation

Accurate, Fast Sulfur Quantification with the Sulfur Analyzer DSA-4

Ensure regulatory compliance and fuel quality with the Sulfur Analyzer DSA-4—a high-performance, benchtop instrument engineered for rapid and precise determination of total sulfur content in petroleum products, lubricants, biofuels, and chemicals. Compliant with ASTM D7039, ISO 20847, SH/T 0689, and EN ISO 13032, the DSA-4 utilizes Monochromatic Wavelength Dispersive X-ray Fluorescence (MWDXRF) technology to deliver lab-grade results in under 60 seconds—without sample preparation or hazardous reagents.

Engineered for Speed, Simplicity, and Regulatory Confidence

The DSA-4 Sulfur Analyzer requires only 4–5 mL of liquid sample in a standard XRF cup. Once loaded, the instrument automatically measures sulfur concentration from 0.5 ppm to 10,000 ppm (0.00005% to 1%) with exceptional repeatability (±0.1 ppm at low levels). Its monochromatic excitation source eliminates background noise, enabling ultra-low detection limits essential for ultra-low-sulfur diesel (ULSD), gasoline, and marine fuels under IMO 2020 and EPA Tier 3 regulations.

Ultra-Low Detection Limit: 0.5 ppm – Ideal for ULSD, gasoline, and jet fuel compliance.
MWDXRF Technology – Superior sensitivity and stability vs. conventional EDXRF; no gases or consumables required.
Full Compliance with ASTM D7039 & ISO 20847 – Accepted for custody transfer and regulatory reporting.
Fast Analysis: <60 Seconds – High throughput for busy fuel labs and terminals.
Minimal Sample Prep – Direct liquid analysis; no digestion, dilution, or chemicals.
Touchscreen Interface & Data Management – Stores 1,000+ results; USB export; supports calibration curves and QC checks.

Trusted Across Fuel and Environmental Testing

Sulfur content directly impacts emissions, catalyst life, and environmental compliance. The DSA-4 empowers refineries, inspection agencies, and marine fuel suppliers to verify sulfur levels on-site—ensuring adherence to global standards like EN 590 (<10 ppm), ASTM D975 (<15 ppm), and IMO 0.5% m/m cap for marine fuels. Its compact footprint and low operating cost make it ideal for field labs, ports, and quality control stations.

Whether you’re screening incoming gasoline batches or certifying bunker fuel at a dock, the Sulfur Analyzer DSA-4 delivers the speed, accuracy, and regulatory acceptance you need—right at the point of need.

Measure sulfur with confidence. Comply with certainty. Act in seconds.