Automatic Engine Oil Oxidation Stability Tester

(Thin Film Oxygen Absorption Method)  ASTM D4742

Product model: JF0074

Product Introduction

The instrument replaces the original paper recorder. The instrument adopts a fully automatic control system. The operator only needs to put the sample into the instrument, and the instrument automatically detects and prints the results. The whole process does not require manual conduct. The principle is to put the sample, distilled water and copper catalyst coil together in a glass test tube, and then put it into an oxygen bomb. The oxygen bomb is filled with oxygen at room temperature and placed in an oil bath at a specified temperature. The horizontal plane is at an angle of 30 degrees, and the speed of the oxygen bomb needs to reach 100r/min. When the specified pressure drop is reached, record the time and stop the test as the oxidation stability of the sample.

 Technical Parameter

1. Applicable standards: ASTM D4742, SH/T0074

2. Temperature control temperature: 0~160℃ adjustable, temperature control accuracy 0.1℃.

3. Display: large LCD screen.

4. Display content: Windows interface:

① Control temperature and set temperature;

② Time/pressure logarithmic curve (four channels displayed at the same time);

③ Test results and average values;

④ Troubleshooting, etc.

5. Functions: a. Automatic oxygenation and leak detection;

b. Over temperature alarm function;

c. Liquid level alarm function.

6. Pressure detection accuracy: ±0.1%

7. Test data storage: 100 groups

8. Power consumption: 2.6KW

9. Instrument form: floor-standing oxygen bomb with all stainless steel structure (except angle iron frame).

Features

1. The instrument is controlled by a microcomputer, which can carry out four sets of tests at the same time. The whole test process and the printing of the measurement data are automatically carried out;

2. Large-screen Windows interface, hyperbolic screen display (including temperature control status, oxygen bomb speed, pressure curve, test data, average value, etc.), the entire test process is clear at a glance;

3. The instrument has the functions of automatic pressurization and leak detection, which greatly saves the workload of operators;

4. Ordinary copy paper is used for data and curve printing, which greatly reduces the test cost;

5. The instrument is equipped with a standard RS-232C communication interface, which can be networked with the central control computer, which is convenient for networked quality management;

6. Equipped with a self-metering pressure recorder, automatic-manual comparison test can be carried out;

7. The instrument control department adopts high-quality components to ensure the reliability of the instrument;

8. The instrument has the function of test failure and fault alarm display, which is convenient for fault diagnosis;

9. The instrument adopts a four-bomb working unit, which is convenient for two sets of parallel samples;

10. The four oxygen bombs are divided into two groups, and any group of oxygen bombs can be activated to conduct experiments;

11. Imported conductive slip ring is easy to disassemble the oxygen bomb and prevent leakage (three-year warranty boxed product);

12. One computer can control multiple oxidizers;

13. The instrument software failure can be repaired remotely and processed online through the network, without the need for staff to come to the door;

14. The instrument is equipped with four sets of stirring motors, two sets of stirring oil bath temperature, and two sets are used as oxygen bomb rotators to ensure the uniformity of the test temperature;

15. The instrument is equipped with a fume treatment system, which reduces the risk of injury to the staff;

16. The front end of the fume treatment is equipped with a filter system to avoid reducing the medium in a short time;

17. High-quality quick connector, easy to disassemble the oxygen bomb, no leakage;

18. Single-chip microcomputer temperature control system, high precision, temperature resolution with three decimal points;

19. The instrument has an automatic protection function. When the temperature exceeds the upper limit temperature, the system will automatically alarm and cut off the source;

20, 5mm military standard stainless steel plate to make constant temperature bath;

21. The constant temperature bath and the instrument shell are insulated by 14 kinds of thermal insulation materials to ensure that there will be no experimenters;

22. Four stirring motors are fixed on a 10mm insulating plate, in good working condition, with low noise and no vibration;

23. The constant temperature bath is changed to an advanced "V" structure, and the heating speed is fast and uniform;

24. There is a safety door in front of the heating bath, which can easily place accessories and samples;

25. The pressure transmitter is directly installed on the oxygen bomb to avoid air leakage from the hose connection.