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■ Features
▲Single cup (VS-9801A type) design and three cups (VS-9801B type) and six cups (VS-9801C type) integrated design, suitable for the determination of the acid value of transformer oil and steam turbine oil.
▲ Automatically complete operations such as extractant addition, neutralization titration, end point discrimination, acid value calculation, data storage and print output.
▲ The standard acid automatic calibration function eliminates system errors to the greatest extent and ensures the accuracy of the measurement results.
▲ Large-capacity and high-efficiency carbon dioxide and water purification system to ensure the stability of the neutralization solution concentration.
▲On-line filtration system for mechanical impurities prevents the residue of working solution from entering the system and blocking the tip of the micro burette.
■ Technical parameters
| Parameter | Index |
| Linear range | 0.000~0.900mgKOH/g |
| Correlation coefficient | 0.9998 |
| Recovery rate | 99~102% |
| Minimum resolution | 0.001 mgKOH/g |
| Repeatability of indication | 0.002 mgKOH/g |
| Voltage | AC220V±2% |
| Power frequency | 50HZ±2% |
| proper temperature | 0℃~45℃ |
| Applicable humidity | ≤85%RH |
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