Cleveland Open Cup Flash Point Apparatus

1. Scope of application:

It is suitable for the determination of flash and fire points of petroleum products by the Cleveland open cup method. Flash point and fire point are used to evaluate the flammability and combustibility of substances.

Put the sample into the sample cup to the specified scale line, first increase the temperature of the sample rapidly, and then slowly increase the temperature at a constant rate when it is close to the flash point. At the specified temperature interval, sweep the test cup with a small test flame, and the minimum temperature at which the test flame causes the vapor on the upper surface of the test liquid to flash is the flash point.

2. Compliant standards:

2.1 Meet the standard requirements of GB3536-2008, ISO2592:2017 "Petroleum products—Determination of flash and fire points—Cleveland open cup method";

3. Main features:

3.1 The advanced C8051 series high-speed and high-performance microcontroller is adopted, and the host system adopts SMT surface mount technology, and the system works stably and reliably.

3.2 Atmospheric pressure correction: built-in calculation software, input the atmospheric pressure value, automatically correct the experimental results by atmospheric pressure, differential detection, and automatic correction of system deviation.

3.3 Strong functions. It can detect the flash point and print the test results. It has a clock chip inside, which automatically displays the current date, time, and power-off hold.

3.4 High precision. The temperature error is controlled within ±1.5°C with a resolution of 0.1°C.

3.5 Good repeatability. In the case of ensuring that the test environment conforms to GB3536 (ASTM D92), the same sample is tested continuously, and the difference between the flash point values of the two is ±3°C (≤150°C), ±5°C (>150°C).

3.6 High degree of automation. It can automatically complete the test process, automatically cool down, and automatically prompt information.

4. Main parameters:

4.1 Instrument composition: It consists of a test cup, a heating plate, a heating plate support, a test flame generator, a heater, and a temperature measuring device.

4.2 Test cup: made of brass;

4.3 Heating plate: made of brass;

4.3.1 Heater: electric heater is used, the heat source is concentrated under the hole, and there is no local overheating;

4.3.2 Heating plate support: use a support that fixes the heating plate horizontally and stably.

4.4 Test flame generator:

4.4.1 Sweeping flame device: adopt automatic repeated sweeping;

4.4.2 The center of the hole moves in a plane less than 2mm above the edge of the test cup;

4.5 Temperature measuring device:

4.5.1 Temperature measurement range: 40°C~400°C;

4.5.2 Temperature detection: platinum resistance sensor;

4.5.3 Temperature accuracy: ±1°C

4.6 Detection function: open flash point

4.7 Ignition method: electric ignition.

4.8 Cooling method: forced air cooling, built-in strong air cooling device

4.9 Machine performance:

4.9.1 Repeatability: ±3°C (≤150°C), ±5°C (>150°C);

4.9.2 Heating rate: The heating rate is two-stage heating, and it is 14°C/min~17°C/min at the beginning of heating. 23°C±5°C before the expected flash point, the heating rate is 5°C/min~6°C/min, which meets the requirements specified in Section 10.5 of GB/T3536-2008.

4.9.3 Self-inspection function: lifting rod, sweeping rod, printing, etc.

4.9.4 Printer: Chinese character thermal printer;

4.10 Scanning, ignition, detection, and printing data are automatically completed;

4.11 Power: ≤700W

4.12 Power supply: AC 220V±10%, frequency 50Hz.

4.13 Operating environment temperature: 10~40℃

4.14 Operating environment humidity:<90%rh<>

4.15 Dimensions: Host: 430×400×260 (mm)

4.16 Weight: about 24kg

5. Configuration and accessories

5.1 Host 1 set

5.2 oil cup 1

5.3 Power cord 250V 10A 1

5.4 1 roll of printing paper

5.8 fuses 2