Products Video
HM501 Automatic Closed Cup Flash Point Tester Operation Video
Product Overview & Application Scenarios

Product Overview
The HM501 Automatic Closed Cup Flash Point Tester is an automated instrument designed to precisely determine the minimum temperature at which the vapor of petroleum products (transformer oil, diesel fuel, fuel oil) ignites when mixed with air and heated under specified conditions in the presence of a flame.
Application Areas:
1. Power Industry:
Insulating oils such as transformer oil and switchgear oil. Ensures the flash point of new and in-service oils meets specification requirements, preventing fires during storage or equipment overheating.
2. Petrochemicals and Refining:
Gasoline, kerosene, diesel fuel, fuel oil, lubricating oil, crude oil.
Serves as a critical safety metric for petroleum products at the point of shipment, also used for product grading and pricing.
3. Chemicals and Coatings:
Solvents, thinners, coatings, resins. Assesses the flammability of volatile products to ensure production, packaging, and transportation comply with safety regulations.
4. Aviation and Shipping:
Jet fuel, marine fuel oil. Ensures fuels maintain a high flash point under specific conditions, safeguarding aircraft and vessel fuel tanks.
5. Quality Control and Research: Various unidentified petroleum products and novel liquid materials. Used for third-party safety assessments or safety studies of new formulation products.

Technical Specifications
|
1 |
Temperature measurement: |
50~200℃ |
|
2 |
Repetitive |
≤2℃ |
|
3 |
Reproducibility |
≤±4℃ |
|
4 |
Resolution |
0.1℃ |
|
5 |
Precision |
0.5% |
|
6 |
The environment temperature |
10-40℃ |
|
7 |
Relative humidity |
≤85% |
|
8 |
The power supply voltage |
AC220V 50Hz±5% |
|
9 |
Ignition way |
Electronic ignition |
|
10 |
power |
<300W |
| 11 | Net Wieght | 18KG |
| 12 | Dimension | 280*260*285mm |
| 13 | Ignition method: | Electric ignition, gas (town gas or butane) |
| 14 | Detection method | High-sensitivity temperature/photosensitive sensor |
Key Features & Advantages

1. Capable of modifying English software prompts;
2. Equipped with display functions for test date, test time, and other parameters;
3. Automatically performs atmospheric pressure compensation and calculates compensation values during testing;
4. Differential detection with automatic system deviation correction;
5. Automatically completes cover plate opening, ignition, detection, and data printing;
6. Automatic test arm elevation;
7. Ignition method: Electronic ignition
8.Features prompt menu input for parameters such as pre-value temperature, oil test mark, atmospheric pressure, test date, etc.
Products Details





Maintenance & FAQs
Q: What constitutes a pass for the measured flash point value?
A: Core principle: The higher the flash point, the greater the safety.
- Acceptable standards vary by oil type and must adhere to product specifications or standards (e.g., GB, ASTM).
- Transformer oil: Typically requires > 135°C - 140°C.
- Diesel fuel: Typically requires > 55°C - 60°C.
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