Purpose
The instrument is suitable to determine acid number of transformer oil and turbine oil.
It is designed and made as per the National Standard GB/T264-83 "Test Methods for Acid Number of Petroleum Products". It takes a blue LCD for display. It can make determination, print test data automatically using a microprocessor. Test procedures are automatically controlled by the microprocessor. Operation procedures are intuitive and simple. Adopt a magnetic stirrer, it is safe, reliable, delicate, and there is less noise during test procedure.

Technical parameters
1. Power supply: 220V±10%, 50Hz;
2. Power consumption: less tahn 100W;
3. Measurement range: 0.001~0.999 mg KOH/g;
4. Resolution: 0.001 mg KOH/g;
5. Test accuracy:
(1) Acid number 0.1: ±0.005 mg KOH/g;
(2) Acid number ≥0.1: 5% of displayed value;
6. Repeatability: 0.004 mg KOH/g;
7. Ambient temperature: 10°C~40°C;
8. Relative humidity: 75%;