I. Summary

HZDS211 potentiometric titration automatic pH value meter is based on GB/T 7304-2000 Petroleum Products and Lubricants Acid Value Determination Method (Potentiometric Titration Method) equivalent to ASTMD664, SH/T0251-2004 and other standards to set the acid value of petroleum products and lubricants It is designed according to standards such as base value determination method (color indicator method) and GB/T 18609, SH/T0688, NB/SH/0836 determination of crude oil acid value (potentiometric titration method) and other standards

The instrument adopts the potentiometric titration method to automatically judge the titration end point and calculate the result automatically. The instrument is suitable for the determination of acid value in crude oil, petroleum products, lubricants and other samples 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 original parts, which are processed by corrosion-resistant materials, and the measurement results of the instrument are accurate and the service life is long.

II. Main Technical Parameters And Features

◆ General microcomputer and operating system, Windows10 operating system, the operation adopts man-machine dialogue, the steps are clear, simple and easy to operate; special software Chinese window interface, mouse, keyboard operation, man-machine dialogue is easy to understand.

◆ Real-time display of potential curve (E-V), first derivative curve (dE/dV) and electrode potential (E), titration volume (V), titration results

◆ Full process titration data browsing, powerful data processing function, easy to reprocess results; mass storage of titration results, data, curves, titration process data can be saved as an Excel file for future query

◆ Automatically print curves, results and titration data

◆ Dynamic equivalence point titration (DET), equivalence equivalence point titration (MET), preset endpoint potential titration (SET)

◆ Fully automatic "end point" discrimination, effectively filtering out false "end point"

◆ Automatic cleaning, automatic liquid replenishment, automatic fixed value liquid addition

◆ Measuring range: ≥0.001 mgKOH/g

◆ Potential measurement range: -2000.0～+2000.0 mV

◆ Basic error of electronic unit: 0.1%F·S±0.1 mV

◆ Input impedance: ≥1×1012Ω

◆ Burette volume: 10mL

◆ Minimum titration volume: 0.001mL

◆ Burette accuracy: ±0.2%F·S

◆ Precision: meet or exceed relevant standards

◆ Dimensions: 350*280*380mm Weight: 18kg

Packing size: 390*320*420 Weight: 22kg