– Accurate, Stable, and Intelligent for Carbon Residue Analysis of Petroleum Products
In petroleum refining, fuel testing, lubricant evaluation, and chemical raw material quality control, carbon residue value is a key indicator for assessing the tendency of oil products to form carbonaceous deposits under high-temperature conditions. The DFYF-187 Automatic Micro Carbon Residue Tester is designed and manufactured in strict accordance with GB/T 17144 and ASTM D4530 standards. It is suitable for carbon residue determination of petroleum products, lubricating oils, fuel oils, base oils, and additives – making it an ideal choice for high-temperature analytical tasks in laboratories.
1. Standard Compliance and Applicable Samples
The DFYF-187 complies with the following international and national standards:
GB/T 17144 (Petroleum products – Determination of carbon residue – Micro method)
ASTM D4530 (Micro Carbon Residuum Test Method)
Applicable sample types:
Diesel and fuel oils
Lubricating oils and base oils
Petroleum additives
Petrochemical raw materials and various petroleum products
Compared to the traditional Conradson carbon residue method, this micro method offers significantly smaller sample volume, automated operation, and excellent repeatability. It is widely used in refineries, testing laboratories, lubricant blending companies, and research institutions.
2. Key Technical Specifications
Parameter | Specification |
Power Supply | AC220V, 50Hz |
Input Power | 1000W |
Temperature Range | Ambient ~ 550°C |
Temperature Accuracy | ±2°C |
Ambient Temperature | ≤30°C |
Relative Humidity | 10 ~ 70% |
3. Performance Features
3.1 7-Inch Color Touch Screen
The instrument is equipped with a 7-inch LCD touch screen featuring clear graphics and intuitive operation. Users can easily set parameters, monitor test progress, and view results.
3.2 Embedded Operating System – Stable and Reliable
Adopting an embedded operating system, the instrument runs stably with strong anti-interference capability. Heating rate and nitrogen flow rate are automatically controlled, and the test process is displayed in real time – significantly reducing manual intervention.
3.3 Automatic Calculation and Data Storage
Users can enter the mass of the sample tube and sample, and the instrument automatically performs carbon residue determination and automatically calculates the carbon residue value. Test results are automatically saved to a USB flash drive, facilitating data backup, transfer, and paperless office practices.
3.4 Constant Nitrogen Flow for Stable Test Conditions
The instrument employs constant nitrogen flow technology, ensuring consistent atmospheric conditions throughout the test – significantly improving test repeatability and accuracy.
3.5 Fault Diagnosis and Automatic Alarm
The instrument features a built-in fault self-diagnosis system. When an abnormality is detected, an automatic alarm is triggered, allowing operators to take timely action – protecting both equipment and personnel.
4. Comparison with Traditional Carbon Residue Testers
Feature | Traditional Conradson Method | DFYF-187 Automatic Micro Method |
Sample volume | Large | Micro volume, sample-saving |
Operation | Manual heating, manual weighing | Automatic temperature control, automatic calculation |
Data recording | Handwritten | Automatically saved to USB drive |
Atmosphere control | Manual | Constant nitrogen flow |
Fault indication | None | Auto-diagnosis + alarm |
User interface | Buttons / analog gauges | 7-inch touch screen |
Test efficiency | Low | Highly automated, efficient |
5. Typical Applications
Refinery quality control laboratories – Routine carbon residue testing of diesel, fuel oils, lubricating oils, and more
Lubricant blending companies – Carbon residue control of base oils and additives
Third-party testing agencies – Standard carbon residue analysis of batch samples
Petrochemical research institutions – High-temperature deposit tendency research and formulation development
Power utilities – Carbon residue monitoring of transformer oils and turbine oils
6. Service and Support
We provide full technical support – from installation and commissioning to operator training and after-sales maintenance. The DFYF-187, with its automation, high accuracy, and stable reliability, is an efficient tool for your carbon residue testing needs.
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.
Contact Us
For standard models or customized solutions – we are here to help you improve your carbon residue testing capabilities.
Sales Email: [lovecarlos2000@gmail.com]
24-Hour Hotline: +86 15941156556
