EN
GDBS-305A Automatic Closed Cup Flash Point Tester
GDBS-305A Digital Intelligent Fully Automatic Closed Cup Flash Point Tester with Pensky-Martens Method, Dual Ignition Mode, Automatic Atmospheric Pressure Correction, for Petroleum Products Flash Point Measurement.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GDBS-305A is a professional-grade, fully automatic closed cup flash point testerexclusively designed for safety assessment of insulating oils, fuel oils, solvent oils and other petroleum products in power systems and petrochemical industries. It fully complies with GB/T 261-2021, ASTM D93-2024 and ISO 2719:2016 standards, adopting the internationally recognized Pensky-Martens closed cup method that provides accurate and reliable measurement results.
The instrument features an imported A-grade PT100 platinum resistance temperature sensor and high-sensitivity thermocouple flash fire detection system, ensuring precise temperature measurement and accurate flash point capture. Its innovative ARM microprocessor control system enables fully automatic operation, completing the entire test process including temperature rise, cup lid opening, ignition, sweeping, flash fire detection, alarm, forced air cooling and result printing without manual intervention. The built-in atmospheric pressure sensor automatically corrects test results to standard atmospheric pressure, ensuring consistent results in different altitude regions.
Specifications
| Parameter | Specification |
|---|---|
| System Parameters | |
| Compliance Standard | GB/T 261-2021, ASTM D93-2024, ISO 2719:2016, DL/T 429.11-2016 |
| Test Principle | Pensky-Martens closed cup method |
| Ignition Mode | Electric ignition (standard), gas ignition (optional) |
| Operation Mode | Fully automatic one-click test |
| Display | 5-inch 800×480 color touch screen |
| Data Storage | 500 groups test results |
| Data Export | USB 2.0 (Excel format) |
| Printer | High-speed thermal printer, 58mm paper width |
| Temperature Parameters | |
| Temperature Range | Room temperature ~ 300℃ |
| Temperature Control Accuracy | ±0.5℃ |
| Temperature Resolution | 0.1℃ |
| Temperature Sensor | Imported A-grade PT100 platinum resistance |
| Flash Fire Detection | High-sensitivity thermocouple |
| Test Accuracy | ±1℃ (≤110℃), ±2℃ (>110℃) |
| Repeatability | ≤2℃ |
| Reproducibility | ≤4℃ |
| Control Parameters | |
| Heating Rate | Standard rate according to GB/T 261 |
| Stirring Speed | 90~120rpm (Step A), 250±10rpm (Step B) |
| Atmospheric Pressure Correction | Automatic (80~110kPa range) |
| Cooling Mode | Forced air cooling |
| Safety Protection | |
| Over-temperature Protection | Yes (320℃ automatic power off) |
| Dry Burning Protection | Yes |
| Flash Fire Alarm | Sound and light alarm |
| Emergency Stop | Yes |
| Power Supply | |
| Input Power | AC 220V±20%, 50Hz±10% |
| Power Consumption | ≤400W |
| Physical Parameters | |
| Dimensions | 480×260×300mm (L×W×H) |
| Weight | ~10kg (including all components) |
| Housing | Cold-rolled steel with electrostatic spraying |
| Protection Grade | IP40 |
| Operating Temperature | 0℃ ~ +40℃ |
| Storage Temperature | -20℃ ~ +60℃ |
| Humidity | ≤85% RH (non-condensing) |
Applications
Core Test Objects
- Power industry oils: Transformer oil, switch oil, capacitor oil, cable oil, turbine oil
- Petrochemical industry oils: Diesel oil, kerosene, fuel oil, lubricating oil, solvent oil
- Other petroleum products: Asphalt, paraffin wax, chemical solvents
Typical Usage Scenarios
- Power companies: Transformer preventive maintenance, insulating oil regular testing, safety assessment
- Transformer manufacturers: Factory quality control, type tests, after-sales service
- Oil treatment companies: Insulating oil regeneration quality inspection, oil treatment effect evaluation
- Petrochemical enterprises: Product quality inspection, raw material testing, production process control
- Third-party testing institutions: Oil quality testing, performance assessment, quality arbitration
Advantages
Compliance with Latest International Standards
Fully meets GB/T 261-2021 Chinese national standard, ASTM D93 American standard and ISO 2719 international standard → test results are recognized worldwide
Industry-Leading Dual Ignition Mode
Supports both electric ignition (no gas required) and gas ignition, meets different user preferences and test requirements → versatile and flexible
High-Precision Temperature Control & Flash Detection
Imported PT100 sensor and thermocouple detection system, ±0.5℃ temperature control accuracy → ensures accurate and reliable test results
Automatic Atmospheric Pressure Correction
Built-in barometer, automatically corrects results to standard pressure → ensures consistent test results in different altitude regions
Forced Air Cooling System
Quickly cools the heating furnace after test, reduces waiting time between tests → improves test efficiency by 50%
FAQ
Q: What is the difference between closed cup flash point and open cup flash point?
A:
- Closed cup flash point: Measures the flash point in a closed container, simulating the fire hazard of products in sealed storage and transportation conditions. It is suitable for low to medium flash point products such as diesel oil, kerosene and solvent oil.
- Open cup flash point: Measures the flash point in an open container, simulating the fire hazard of products in open storage and use conditions. It is suitable for high flash point products such as transformer oil and lubricating oil. GDBS-305A is specifically designed for closed cup flash point testing according to GB/T 261 standard.
Q: Which ignition mode should I choose?
A:
- Electric ignition: No external gas source required, safer and more convenient to use, especially suitable for on-site testing. It is the standard configuration of GDBS-305A.
- Gas ignition: Uses liquefied petroleum gas as fuel, the flame is more stable, suitable for laboratories with gas supply. It is an optional configuration. Both modes meet the requirements of international standards and provide consistent test results.
Q: How does the automatic atmospheric pressure correction work?
A: The instrument has a built-in high-precision barometer that measures the local atmospheric pressure in real time. According to the formula specified in GB/T 261 standard, it automatically corrects the measured flash point temperature to the value at standard atmospheric pressure (101.3kPa). This ensures that test results are consistent and comparable regardless of the altitude of the test location.
