Attension Sigma 702 Force Tensiometer


Available Measurements
Surface Tension Yes
Interfacial Tension Yes
Critical Micelle Concentration Manual
Dynamic Contact Angle No
Surface Free Energy No
Powder Wettability No
Density Yes
Sedimentation No
Balance Specifications
Measturing range (mN/m) 1 – 1000
Displayed resolution (mN/m) 0.01
Density Range (g/cm3) 0 – 2.2
Density resolution (g/cm3) 0.0001
Maximum Load (g) 5
Weighing Resolution (mg) 0.01
Force Resolution (μN) 0.1
Contact angle range (°)
Contact angle resolution (°)
Calibration & Locking Manual



The open design and convenient control keyboard operations make the Sigma 702 extremely easy to use. Results are displayed on a large integrated digital screen. The instrument comes equipped with data software and can be connected to an external computer for additional data storage and simple reporting.

  • Stand alone (no external computer necessary)
  • Surfactant surface tension
  • Powder wettability and absorption
  • Interfacial tension
  • Critical micelle concentration (CMC)
  • Dynamic contact angle
  • Adhesion force
  • Sedimentation
  • Density

Surface Tension/Interfacial Tension Utilizing Du Noüy Ring, Wilhelmy plate or rod, record and analyze the forces exerted onto a probe or solid sample using a sensitive microbalance. The force seen by the balance can be converted into surface tension or interfacial tension when a platinum Du Noüy ring or Wilhelmy plate is used for drawing up the liquid in a meniscus.