Drop Volume Tensiometer DVT50

Drop Volume Tensiometer DVT50
Drop Volume Tensiometer DVT50

A speedometer for surfactants

You know just how effective your surfactant is. But do you also know how quick it is? 

Whether pumping, stirring or flooding: oil-water interfaces are always in motion. Just knowing the equilibrium value of the interfacial tension is no longer sufficient. The drop volume technique of the DVT50 from KRÜSS records the interfacial tension under dynamic conditions – in an interface age range from fractions of a second up to several minutes.

Thanks to its wide measuring range from 100 mN/m down to 0.1 mN/m and the possibility of thermostatting the liquid phases the instrument is suitable for a wide range of applications. Very simple handling during filling and cleaning as well as software control with programmed measuring sequences ensure a smooth measurement procedure with a high sample throughput.

Application

  • Emulsification in pharmaceutical, cosmetics and food industries
  • Tertiary crude oil recovery
  • Solvent-free degreasing
  • Cleaning processes
  • Liquid explosives

Technical data

Dynamic SFT / IFT

  Range
  Resolution
  Reproducibility

 

0.1 - 100 mN/m
0.001 mN/m
< 0.2% (Rel SD at 45 mN/m)

Syringe Drive

  Flow rate (depending on used syringe)
  Resolution
  Automatic refill

 

0.0265 to 1985 µl/min
0.1 µm
Yes

Temperature Control

  Temperature range
  Components under control

 

-10 to 90°C
Cell, syringe, reservoir

Housing

  Size(L×W×H)
  Weight

 

280×240×455 mm
13 kg

Power

  Power supply
  Power consumption

 

12 VDC, 100 to 240 VDC, 47 to 63 Hz
typ. 6 W, max. 10 W

Interfaces

  PC
  Auxiliary

 

USB, RS232
RS232

Measuring Methods

  • Drop Volume Method
  • Falling Drop (IFT)
  • Rising Drop (IFT)
  • Surface Tension

Zubehörliste

 

DVT50

For informationen on accessories, please open the list

Complete list

Brochure DVT50

Download