The SITA FoamTester analyses the characteristics of surfactant-containing liquids easy, fast and precise with automated measuring sequences.
• Fully automated foam analysis • Precise reproducible foaming • Innovative optical measuring method • Measuring foam and liquid volume • Analysing foam structure • Recording drainage • Automated cleaning
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Analysing foam parameters, Controlling surfactant effects
The new generation SITA FoamTester
20 years of experience meets the needs of innovative foam testing
Characteristics
Quantity |
(Foam) volume, foam structure |
Foam characteristics |
- Foam volume, gas volume, liquid volume within the foam - Maximum foam volume, foaming potential - Drainage half-life - Average bubble size - Distribution of bubble sizes |
Fields of application |
Optimising surfactant-containing liquids Product development, raw material selection and development, quality and process control |
Use | Conducting individually generated and automated measuring routines for simple repetition and for screening the test parameters |
Measurement |
Non contact determination of the total and foam volumen, high resolution and large scale image of the foam structure |
Industry | Cosmetics, cleaning agents, cooling lubricants, paints&coatings |
Applications
SITA foam testing is characterised by a high degree of automation and repruducibility. The SITA FoamTester is used for analysing the foaming behaviour of surfactant-containing liquids in different numerous fields and applications: |
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• | Influence of the formulation and raw materials on foaming behaviour in the field of cosmetics |
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• | Testing the correlation between the resulting foam structure and user perception | |
• | Influence of contaminations on the foaming in cleaning baths | |
• | Testing the efficiency and duability of defoamers in cooling lubricants | |
• | Recipe optimisation to reduce foaming in bottle filling of beverages | |
Measuring principle
Foam creation |
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Step by step foaming with proven SITA rotor principle |
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Volume measurement |
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• | Non contact determination of the total volume with structured-light method | |
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Determination of the volume of the remaining liquid by using the total internal reflection |
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Foam structure |
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High resolution display of the foam structure over the entire foam level using the total internal reflection |
Technical data
Foam creation |
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Recommended sample volume | (200 ... 500) ml |
Usable measuring vessel volume |
1,500 ml (incl. foam) Dimensions: |
Capacity of sample reservoir |
2,000 ml |
Sample tempering of measuring vessel and sample reservoir |
(0 ... 60) °C using a optional thermostat |
Stirring speed | (0 ... 2,000) U/min (bidirectional) |
Adjustable stirring programs | speed, duration, direction, acceleration |
Analysis of foam volume (foam creation and decay) | |
Measurement values |
total volume, foam volume, liquid volume |
Evaluated parameters | max. foam volume, foam half-life, flash foam |
Measuring range total volume | (0 ... 1,500) ml; resolution 1 ml |
Measuring range liquid volume |
(0 ... 500) ml; resolution 1 ml |
Analysis of foam structure |
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Parameters | number of bubbles, bubble size distribution, average bubble diameter, circularity index |
Evaluation area | height 130 mm width 50 mm |
Resolution | 3,200 dpi |
General data | |
Rinse connection | 3/4“ (2 ... 6) bar |
Operating temperature | (10 ... 40) °C |
Power supply | (100 ... 240) V / (50 ... 60) Hz, 300 W |
Dimensions (HxWxD) | (770 x 450 x 305) mm |
Weight | approx. 35 kg |
PC interface |
Ethernet
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Software
The included PC-Software SITA-FoamLab enables the intuitive creation and evaluation of individually adjusted experiments. |
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• | Re-usable templates of saved test toutines | |
• | Display of essential measuring parameters |
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• | Automated calculation of essential foam characteristics |
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• | Adjustable layout of the graphs for individual documentation |
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Optional: External laboratory devices for sample conditioning
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• | Extension of experiments by additional functions for sample conditioning |
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Automatic integration and direct control within the test sequence
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Automatic dispenser CAT Contiburette μ10D |
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for the dosage of liquids Resolution: 10 µl Dosing speed: 0,2 - 20 ml/min |
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Thermostat Lauda ECO RE 415S |
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for cooling and heating of sample liquids Temperature range: (-15...200) °C Ambient temerature range: (5 ... 40) °C |
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Thermostat Lauda ECO E4S |
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for heating of sample liquids Temperature range: (room temperature...200) °C Ambient temerature range: (5 ... 40) °C |
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Previous model SITA foam tester R-2000
The previous model SITA foam tester R-2000 is no longer available. If you have any questions concerning your existing device, please contact us directly. |
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The market launch of the SITA FoamTester is supported within the scope of the German development programme "Market launch of innovative products and product design". |