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
Automated SITA foam testing
Functionial components of the SITA FoamTester |
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Benefits of automated foam testing |
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• | Autonomous repetition of test runs without intervention by the user | |
• | Immediate statements about the reproducibility | |
• | Fast and easy screening of test and sample parameters | |
Convenient sample handling |
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• | Automatic sample preconditioning (e.g. temperature, concentration of additives) with external devices | |
• | Integrated sample reservoir with magnetic stirrer for running multiple test series | |
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Automated self-cleaning system with external liquid supply (e.g. tap water) |
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Flexible experimenting |
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• | Easy and free creation of experiments at the office PC by drag‘n‘drop using fully parameterisable device tasks and supportive functions (loops and timers) | |
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• | Creating multiple re-usable templates and exactly repeatable test routines to select and start by a single touch at the device | |
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• | Instant start with test routines for typical applications pre-defined by SITA | |
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Create foam
Differentiation of various sample formulations and reproducible test sequences using an application-oriented foam creation with proven SITA method |
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• | Established SITA standardised stirring disc | |
• | Variable stirring parameter: speed, duration, acceleration, direction, intervals | |
• | Minor influence of the vessel glass on foam formation | |
• | Removable measuring vessel with stirring unit |
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Measure foam
Use of optical, contactless measuring methods |
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Foam Surface Scanner Determination of the topography of the foam surface and therefore the total volume using the structured-light method |
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Foam Interface Scanner Determination of the foam structure and the liquid level by optimal use of a movable camera system, which illuminates and observes the measuring vessel at an angle Θ above the critical angle for total internal reflection |
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• | Automatic acquisition of the total volume (liquid and foam) by the Foam Surface Scanner, of the residual liquid volume by the Foam Interface Scanner and of the foam volume in combination | ||
• | Analysis of the foam volume of clear and cloudy liquids |
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• | Recording of the foam structure over the range of 130 mm x 50 mm | ||
• | All measurements in the same measuring vessel, connected to the thermal circuit |
Analyse foam and understand foaming
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• | Convenient evaluation of measuring data with the software SITA-FoamLab in the office | |
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Complete transparency of the measuring progress and the results by intuitive visualisation |
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• | Analysis of the slope and the resulting volume during foam formation | |
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• | Analysis of the foam decay and the drainage | |
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• | Analysis of bubble sizes and shapes in the foam structure | |
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• | Comprehensive characterising of foam and foaming | |
- | By the determination of further parameters such as half-life period and foam density | |
- | By the individual height-dependent evaluation of foam structure parameters such as average bubble size or circularity index | |
- | By tracking time dependent changes in the foam structure | |
- | Flexible comparison by clear display of different measuring sequences | |
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Easy export of data and results for documentation
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Fields of Application
Optimisation of surfactant containing products in |
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• | Product Development | |
• | Raw material development and selection | |
• | Product processing and application | |
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Quality and process assurance |
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Application examples |
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Cosmetics |
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• | Influence of the formulation and raw materials on foaming behavior | |
• | Foam stability of toothpaste and foam baths | |
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Foam structure as a reference point for user perception
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Cleaning agents |
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• | Influence of temperature on the foaming of spray cleaners | |
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Influence of contaminations on the foaming in cleaning baths
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Cooling lubricants |
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• | Influence of water hardness on aging process | |
• | Durability of defoamers | |
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Optimisation of the filtration process to prevent foaming
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Inks, paints and coatings |
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Effectiveness of defoamers
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Liquid processing industry |
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Foaming behaviour of flow suspension in paper industry |
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• | Recipe optimisation to reduce foaming in bottle filling of beverages | |
• | Adjustment of foaming production auxiliaries in textile manufacturing | |
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Foaming effects of polymers in plastic production
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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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Available models
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SITA Foam Testing System Expert consisting of SITA FoamTester und SITA-FoamLab Expert |
SITA Foam Testing System Basic consisting of SITA FoamTester und SITA-FoamLab Basic |
Convenient sample handling | • | • |
Flexible experimenting | • | • |
Application-oriented foam generation with proven SITA method | • | • |
Optical, contact-free measuring systems | • | • |
Foam creation analysis | • | • |
Foam decay analysis | • | • |
Foam structure analysis | • | • |
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". |