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  4. Surface Tensiometer
  5. BP-D5

BP-D5

BP-D5

BP-D5 Bubble pressure tensiometer

BP-D5

Sample chamber with jacket type stage

BP-D5

Jacket type stage in measuring and stand-by position

BP-D5

Built-in thermometer next to glass probe connection

BP-D5

Standard accessories set of glass probes, liquid vessels, probe holder and ultrasonic cleaner

BP-D5
BP-D5
BP-D5
BP-D5
BP-D5

Display of the pressure voltage waveform

Display of the pressure voltage waveform

Extrapolation according to Hua & Rosen

Extrapolation according to Hua & Rosen
  • "One-click" fully automated operation

  • Surface tension against surface age (from 20 to 5,000ms) chart is computed and plotted automatically
  • Measurement of the dynamic surface tension at a specific surface age from 20 to 1000ms.
  • Real-time display of the bubble pressure waveform to monitor the conditions of the bubble generation
  • Extrapolation of the averaged raw data according to a method suggested by Hua & Rosen
  • The bubble generation from the capillary is made visible by a synchronized built-in stroboscopic lamp
  • Built-in jacket type stage and platinum resistance thermometer for measurements in the range of +10 to +70°C
  • Ultrasonic cleaner for cleaning of the glass probes

Hardware

  • Air tank for a surface age range from 20 to 15000ms.
  • Determination of the characteristics of surfactants, such as concentration, lifetime, and dynamic surface tension
  • Dynamic surface tension and instant wettability of inks and coating fluids
  • Determination of the absorbing rate of surfactants to control the dynamic surface tension
  • Instant forming of microdroplets with regards to aerosols and emulsifiers
  • Determination of instant foaming of detergents and fire extinguishing fluids
  BP-D5
Measuring methods Maximum bubble pressure method
Measuring range 10 to 100mN/m
Resolution 0.01mN/m
Accuracy1) 0.5mN/m
Surface age range of dynamic surface tension in a time function: 20 to 5000ms, optional: 20 to 15000ms
at a fixed surface age: 20 to 1000ms
Sample volume about 80mL
Sample viscosity range 0.5 to 10mPa・s
Sample stage operation by software controlled pneumatic cylinder
Air supply pressure 0.4 to 0.7Mpa
External dimensions
(WxDxH)
320x315x475mm
Approximately weight 18.5kg
Electric power:
Voltage
Frequency
Power consumption

AC100-240V
50/60Hz
50W 80VA
Operating environment temperature: +10 to +35°C, humidity: 30-80%RH (non-condensing)
positioned away from sources of electrical noise and vibration

1) Accuracy is the repeatability in terms of standard deviation based on the manufacturer’s prescribed conditions

  • Specification sheet
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