Sysmex Nederland

Krüss BP100

  • Measures dynamic SFT at constant or variable surface age
  • Wide surface age range: 5msec to 200 sec
  • Fully automatic measuring process by software controlled immersion of the capillary
  • Integrated compressor - no compressed air supply necessary
  • Determination of the adsorption and diffusion coefficient


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Analysis of surfactant solutions for dynamic processes

The Bubble Pressure Tensiometer - BP100 measures dynamic surface tension with high accuracy. It reliably analyses the mobility of surfactants, thus enabling high-speed processes such as spraying, coating, printing and cleaning to be optimized.

Analysis of surfactants for high-speed processes
BP100 measures the behavior of a surfactant over a wide speed range as part of a single, fully automatic measuring process. This enables you to find out how quickly a surfactant acts and when the required surface tension has been reached. In this way, the BP100 assists in the development, selection and dosing of surfactants for optimum speed.

Optional disposable capillaries simplify the investigation of contaminating or solidifying liquids such as inks or varnishes, and save cleaning. Thermal process conditions at temperatures between ‑10 and 130 °C can be simulated to enable the results to be transferred to large-scale situations in the best possible manner.

When used in research, the BP100 helps to characterize the mobility of surfactants by means of such substance parameters as the adsorption coefficient and diffusion coefficient. This provides a scientific picture of the substances used, which can be used to help specifically model products containing surfactants.

Analysis of the surfactant content of cleaning and galvanic baths
BP100 is also suitable for checking the surfactant content of cleaning or galvanic baths. The dynamic surface tension responds particularly sensitively to changes in the surfactant content in the concentration range of such baths, thus enabling these changes to be reliably determined.

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Pressure measurement
Maximum pressure: 3000 Pa
Precision: 0.05%
Accuracy: 1.3%
Measurement rate:  20 kHz

Sample stage
Travel distance: >110 mm
Resolution: 20 µm
Travel speed: 0.09 to 500 mm/min
Type of motor: Brushless DC servo motor
Simple platform: Optional
Thermostated jacket: 70 mm (100 mm)¹

Bubble pressure
Result: dynamic surface tension vs. surface age or at constant surface age
Surface tension range: 10 to 100 mN/m
Resolution: 0.01 mN/m
Precision: 1%
Surface age range:  5 to 200 000 ms

Minimum recommended sample volume
15 mL 2)

Temperature control
Type: liquid
Range: -10 to 130 °C
External circulator: Optional

Temperature measurement
Range: -10 to 130 °C
Resolution: 0.01 °C
Precision: ±0.05 °C
Accuracy: ±0.5 °C
Internal sensor: Sample stage
External sensor: Sample vessel¹

Temperature: Operating: 15 to 30 °C
Humidity: Without condensation

300 (W) × 390 (D) x 585 (H) mm

Weight (without accessories)
13 kg

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