Automatic Surface Tensiometer
SIT100/SIT200 are upgraded with greatly improved performance
* Adopt 4.3-inch touch screen, all operations and information are completed or displayed on the screen;
* The sensor adopts the principle of electromagnetic force balance, with high sensitivity, high precision and high repetition;
* Both platinum plate method and platinum ring method;
* Fully automatic measurement, without calculation, directly display the surface tension value or interfacial tension value;
* One-key reset & correction; digital processing technology, no deviation;
* Users can use standard samples (distilled water and pure ethanol) to calibrate the data to ensure the accuracy of the measurement;
* Display measurement curves in real time, save measurement results, print main parameters, data and curves;
* Double-door transparent plexiglass windshield, easy to operate and reduce the use of environmental requirements;
* Password management function to ensure data traceability and prevent data modification and accidental deletion;
* Chinese/English interchangeable operation
Adopts high-precision electromagnetic sensor
It is specially developed for surface and interfacial tension testing. Although the cost is much higher than that of traditional strain sensors, it has many advantages such as high measurement accuracy, good repeatability, and little influence by temperature. It is the current international mainstream measurement solution.
Conforms to EU, ISO, DIN, ASTM standards on surface & interfacial tension
ASTM D971 Standard Test Method for Interfacial Tension of Oil-Water by Ring Method
ASTM D1331 Standard Test Method for Surface and Interfacial Tension of Surfactant Solutions
ASTM D1417 Standard Method for Testing Synthetic Rubber Latex
DIN EN 14210 Surfactants - Determination of interfacial tension of surfactant solutions by the stirrup or suspension ring method
DIN EN 14370 Surfactants - Determination of surface tension
ISO 304 Surfactants - Determination of surface tension by the pulling film method
ISO 1409 Plastics/rubber - Polymer dispersions and rubber latexes (natural and synthetic) - Determination of surface tension by the ring method
ISO 4311 Anionic and nonionic surfactants - Determination of critical micelle concentration - Method for determination of surface tension using a hanging plate, stirrup ring or ring
OECD 115 OECD Guidelines for Testing Chemicals: Surface Tension of Aqueous Solutions
ISO 6889 Surfactants - Determination of surface tension by the pulling film method
ISO 1409-1995 Determination of surface tension of plastics, rubber, polymer dispersions and latex
ISO 6295-1983 Determination of interfacial tension of petroleum products, mineral oil and oil on water (ring method)
Main Interface Setting
SPECIFICATIONS
| Model |
SIT100 |
SIT200 |
| Test Methods* |
Plate/ring both use |
| Test Range |
0~1000mN/m |
0~500mN/m |
| precision |
0.1mN/m |
0.01mN/m |
| Operation method |
Automatic lifting & lowering of sample stage, fully automatic measurement |
| Display method |
4.3-inch touch screen direct data reading |
| measure time |
within 60 seconds |
| Data output** |
RS232 (printer) |
| Dimensions |
280*200*360 mm(L*W*H) |
| net weight |
8kg |
| power supply |
110V or 220V, 30W |
| Platinum Ring specs |
Wire Radius 0.185mm
Ring Radius 9.55mm
Ring Circumference 60mm |
*Note: There is only one platinum plate or one platinum ring as standard, which needs to be specified when ordering. If the budget is sufficient, it is recommended to configure both the platinum plate and the platinum ring.
**Note: The standard configuration of the printer is not included, and it can be purchased separately according to requirements.
Audited Supplier 
Main Interface Setting
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