Summary
  The instrument is designed and made as per national standard of People’s Republic of China GB/T6541 and ASTM D971 Standard Test Method for Interfacial Tension of Oil against Water by the Ring Method. It is used to determine the interfacial tension between mineral oils and water under non-equilibrium condition (Liquid-Liquid interface). It can also be used to determine interfacial tension of various liquids (Liquid-Gas interface).

I. Main technical features
The instrument adopts large LCD screen and blank button, so it is automatic, reliable, and simple and with good repeatability. Turn on the instrument and operate the instrument as per the prompt of menu, and you can complete the test as per the prompt. The instrument has function of automatic temperature compensation, clock control, printing, and automatic average value calculation. It can connect to a computer through RS232 interface. You can also send the test data to a handheld computer for analysis. It is the best choice to make determination for interfacial tension test.
 
II. Main technical specifications
1. Measurement range:
(1) For insulating oil: 2～100 mN/m
(2) For other petroleum products: 0～200 mN/m
2. Sensitivity: 0.1 mN/m
3. Accuracy: 0.1 mN/m
4. Resolution: 0.1 mN/m
5. Repeatability: 0.3%
6. Ambient temperature: 10℃～30℃
7. Relative humidity: 20%～75%
8. Power supply: AC 220V±5%, 50 Hz
9. Power:  20VA

10.Total consumption:less 200W

11.Outline dimension: 200㎜×300㎜×330㎜(L*W*H)
12.Net weight:6Kg