The instrument is designed according to standards such as GB/T 7304-2000 Determination of Acid Value of Petroleum Products and Lubricants (Potentiometric Titration Method) and GB/T 18609 Determination of Oleic Acid Value (Potentiometric Titration Method). The instrument uses potentiometric titration to automatically determine the titration endpoint and calculate the results. This instrument is suitable for determining the acid value in various samples such as crude oil, petroleum products, lubricants, etc. in the petrochemical industry. The determination of acid value is one of the important indicators for judging the quality of oil products. The titration system adopts imported components, which are processed from corrosion-resistant materials, with accurate instrument measurement results and long service life.

Product Features:

1. Using titration units and anti diffusion titration heads, the performance is stable and reliable, with extremely low transmission noise;

2. The electrode is a dual high impedance input, which makes the electrode potential more stable and reliable;

3. Windows operating platform, user-friendly human-machine dialogue, easy to operate and operate;

4. The instrument analysis system is required to be able to set and adjust multiple parameters, making the analysis of different types of samples simple, fast, with shorter analysis time and more accurate results. Automatically determine the endpoint, automatically filter out false endpoints, without the need for an indicator. The titration results and data are automatically stored and printed, and complete titration data can be provided for analysis and research purposes;

5. The instrument data processing system is required to have automatic calculation functions for concentration and content. The work curve is automatically fitted once and twice using the least squares method (LSM), and the confidence interval of the work curve is given, with sensitivity automatic correction function; Standard accession method;

Technical Specifications:

1. Potential measurement range: (0~± 2000) mV, pH: 0~14.00pH;

2. Basic error of electronic units: mV: 0.03% (F • S), pH: 0.001pH;

3. Input impedance: Ri ≥ 1 × 1012 Ω;

4. Burette volume: 10mL, minimum volume is 0.01mL;

5. Accuracy of burette: 0.1% (F • S);

6. Dropping time of burette: (60 ± 20) seconds (F • S);

7. Minimum sending volume (minimum liquid feed): 0.001mL;

8. Sampling volume: 30 mL;

9. Titration endpoint repeatability error: ≤ 0.2%;

10. Analysis time: 2-3 minutes (depending on sample size)

11. Whole machine power: not exceeding 50W;

12. Power supply: AC 220V ± 10%, 50Hz ± 10%;