Inter Facial Tension of Transformer Oil
Interfacial tension between the water and oil interface is the way to measure the attractive molecular force between water and oil. in Dyne/cm or milli-Newton/meter. Interfacial tension is exactly useful for determining the presence of polar contaminants and oil decay products. Good new oil generally exhibits high interfacial tension. Oil oxidation contaminants lower the IFT.
General Descriptions:
The interaction force between molecules form the interfacial tension or surface tension of liquids. The size of tension value can reflect the physical and chemical properties of liquids and their material composition. It is one of the important indicators for related industries to investigate the quality of products. This product is suitable for GB/T6541 standard. Based on ring method (platinum ring method), the surface tension (liquid gas interface) and interfacial tension (liquid liquid interface) of various liquids are measured. This method has the advantages of simple operation and high accuracy and is widely used. It is widely used in power, petroleum, chemical, pharmaceutical, food, teaching and other industries.
Functions and characteristics
1. The original fast response electromagnetic force balance sensor is used to improve the side precision and linearity.
2. The calibration of the instrument is only a point to be calibrated, which solves the defect that the previous generation of sensors need multi point calibration, and eliminates the zeroing potentiometer and the full range potentiometer.
3. The value of the equivalent tension and the current weight are displayed in real time.
4. Integrated temperature detection circuit, automatic temperature compensation for the result of measurement;
5. 240*128 dot matrix LCD display, no identification key, with screen protection function;
6. A time – marked history record with up to 255 data stored.
Built in high speed thermosensitive printer, printing beautiful, fast, with offline printing function.
Technical Specification
|
Name |
Specification |
|
measuring range |
0-200mN |
|
Accuracy |
0.1% reading ±0.1 mN/m |
|
Sensitivity |
0.1 mN/m |
|
Resolution |
0.1 mN/m |
|
Power voltage |
AC 220 V ±10% |
|
Power frequency |
50 Hz ±2% |
|
Power |
≤20W |
|
Working temperature |
10~40℃ |
|
Working humidity |
<85 % RH |
|
Dimension |
200mm*330mm*300mm |
|
Net weight |
5kg |
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