–Accurate, Stable, and Intelligent
In industries such as petrochemicals, coal processing, environmental monitoring, and power generation, accurate sulfur content measurement is critical for product quality control and regulatory compliance. The DFYF-3000S Ultraviolet Fluorescence Sulfur Analyzer delivers advanced detection technology, intelligent operation, and broad sample adaptability – making it a reliable choice for both laboratory and industrial applications.
1. Wide Measuring Range for Diverse Applications
The DFYF-3000S supports sulfur determination from 1 mg/L up to 10,000 mg/L, and even percentage levels, accommodating trace to high-concentration sulfur analysis. Whether testing light oils, heavy oils, or chemical raw materials, the instrument provides fast and accurate results.
2. Precise Temperature Control for Stable Reactions
With an adjustable temperature range from ambient to 1100°C and a control accuracy of ±1°C, the DFYF-3000S ensures consistent pyrolysis conditions. This stability directly improves repeatability and reliability of test results.
3. Excellent Repeatability and Low Error
For liquid samples, the DFYF-3000S demonstrates outstanding repeatability across different concentration ranges:
Between 0.2 mg/L and 10 mg/L, repeatability error ≤ ±0.2 mg/L
Between 1.0 mg/L and 10 mg/L, Cv ≤ ±10%
Above 10 mg/L, Cv ≤ ±5%
This level of precision meets or exceeds major international standards for sulfur analyzers.
4. Versatile Sampling Options – Solids, Liquids, and Gases
The DFYF-3000S is more than a liquid analyzer. With optional sampling systems, users can easily analyze sulfur content in solids (e.g., coal, polymers), liquids (e.g., petroleum products), and gases (e.g., natural gas). This multi-phase capability maximizes return on investment.
5. Smart Software and Advanced Hardware for a Better User Experience
5.1 USB Communication for Stable Data Transfer
USB communication ensures more stable and efficient data acquisition and command transmission, eliminating common issues such as data loss or latency found in older serial port connections.
5.2 Continuously Adjustable High Voltage and Overpressure Protection
The instrument features continuously adjustable high voltage and overpressure monitoring, effectively protecting the detection system from damage and extending equipment service life.
5.3 Automatic Baseline Zeroing and Intelligent Peak Scaling
Automatic baseline zeroing minimizes manual intervention and improves measurement consistency. Intelligent peak scaling enhances signal clarity for samples with varying concentrations, making result interpretation easier.
5.4 Industry-First Sulfur Detector – Sensitive and Interference-Resistant
Equipped with a domestically pioneered micro-current sulfur detector, the DFYF-3000S offers high sensitivity, low noise, a wide linear range, and strong anti-interference capability – ensuring stable output even with complex sample matrices.
5.5 User-Friendly Windows-Based Software
Running on a Windows operating platform, the software features an intuitive interface and supports both single-point and multi-point calibration, allowing users to easily establish calibration curves based on actual samples.
6. Typical Applications
Petroleum refining and petrochemical product testing
Sulfur analysis in coal and coal chemical products
Environmental monitoring (e.g., sulfur in waste gas and water)
Natural gas and LPG quality control
Research institutions and university teaching laboratories
7. Why Choose the DFYF-3000S?
Feature | Conventional Sulfur Analyzers | DFYF-3000S |
Sample types | Mostly liquids | Optional: solids / liquids / gases |
Communication | Serial port, prone to interference | USB, stable and efficient |
Detector performance | Higher noise | Low noise, wide linear range, anti-interference |
Peak processing | Manual or fixed | Automatic scaling |
Calibration | Single method | Flexible: single-point or multi-point |
Overpressure protection | Not available | Continuously adjustable + monitoring |
8. Service and Support
We provide full technical support – from installation and commissioning to operator training and after-sales maintenance. The DFYF-3000S is built with internationally popular circuit designs and imported key components, delivering performance superior to domestic competitors and ensuring long-term operational stability.
About Us
With nearly 40 years of specialized experience, Dalian Analysis Instrument Factory is a leading manufacturer of petroleum product testing instruments. We are ISO 9001 (2000) certified, ensuring reliable quality assurance in design, production, and after-sales service.
Our product line covers more than 100 varieties, including analyzers for gasoline, kerosene, diesel, lubricating oils, greases, and general laboratory equipment. By combining deep industry knowledge with continuous innovation, we provide high-performance analytical solutions to customers worldwide.
Contact Us
For standard models or customized solutions – we are here to help you improve your sulfur analysis and lubricating grease quality control.
Sales Email: [lovecarlos2000@gmail.com]
24-Hour Hotline: +86 15941156556
