The KSV BPA-800P bubble pressure tensiometer represents the latest development in bubble
pressure measuring technology. Many of the key features are patented such as the
determination of bubble lifetime characteristics, the optimization of the aerodynamic
system, and the option to reach extremely short as well as sufficiently long measuring times.
Automatic operation and user independence are the key features of the KSV BPA-800P. Portability
and battery operation make the instrument extremely useful in industrial and environmental
applications. User friendly external PC software makes data analysis and storage easy.
Fields of Application
• surfactant science
• ink jet printing
• coating technology
• foam and emulsion technology
• detergency
• pharmacy, cosmetics, food technology
• medicine and biology
• ecology

• direct and precise measurement of dead time
and life time
• representation of results as a function of physical
time as well as effective adsorption time
• broad available time interval of 4 orders of
magnitude
• precise measurement of dynamic surface tension
• direct measurement of hydrostatic pressure
• correction for gravitation and liquid viscosity
• temperature measurement of the sample
• automatic detection of liquid surface
• automatic insertion of the measuring probes to
user defined depth
• portability and battery operation
• external PC connection

Surface tension measuring range 10 – 100 mN/m

Reproducibility of measured values ± 0.1 mN/m

Accuracy of surface tension ± 0.25 mN/m

Dynamic time range 10 ms – 10 s

Min. volume test liquid 1 ml

Temperature range 0 ... 90 °C

Experimental time:

Standard mode 20 – 35 min

Fast mode 4-6 min

Power requirements:

Measuring unit 12 VDC

Power supply 100– 250 VAC, 50-60 Hz

Max. power consumption 1 Watt

Battery pack NiMh (option)

Power connection to

car cigarette lighter Option

Battery life time 3 – 5 h

Internal flash memory 2 Mb standard

Dimensions:

Measuring unit (W x D x H) 170 x 110 x 70 mm

Stative (W x D x H) 150 x 180 x 300 mm

Weight:

Measuring unit 1 kg

Interfaces: RS-232 (standard)

Infrared (optional)

Max. number of measurement points 30 – 50 (depending of the

saved in each measurement bubble life time)

Max number of measurements 20,000

stored in the unit (downloadable to

external PC)

External PC software Optional