The DVA-1 Drop Volume Tensiometer allows measurement of surface and interfacial tension of liquids, dynamic interfacial tensions in a time range of less than 1 second, up to several minutes. The instrument is controlled via a PC or laptop. The filling procedure is automatic from a reservoir and the temperature measuring cell is controlled. The effect of viscosity is corrected for short drop times.
Applications: surfactants, ink jet, coating, foam and emulsion, detergents, pharmaceutical, cosmetics, food, medicine and biology, ecology.
| Surface and interfacial tension | 1 to 100 mN/m (dyn/cm) |
| Resolution | 0.2 mN/m (dyn/cm) |
| Time range | 0.2 to 1000 seconds |
| Syringe volume | 0.1, 0.25, 0.5, 2.5 mL |
| Temperature | 10 to 80ºC |
| Dimensions (WxLxH) | 20x20x21 cm (8x8x8’’) |
| Weight | 3 kg (6.6 lb.) |
Principle is based on the accurate determination of the volume of drops detaching from capillaries.
- Automatic dosing system
- Automatic refilling and cleaning
- Computer controlled, compact design
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The instrument is supplied with a computer controlled dosing system.