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DYNAMIC FOAM ANALYZER

The DFA​100 Dynamic Foam Analyzer measures the foamability of liquids and the stability of quickly decaying or long lasting foam based on reproducible foaming and height detection. With optional modules operating in parallel, it also measures the liquid content or analyzes the foam structure with regard to bubble size and distribution. The DFA100 supports you in optimizing foam-forming products or helps you to avoid unwanted foam formation.

Additional information
INSTRUMENT DIMENSIONS

Footprint: 245 mm × 275 mm (W × D)
Height: 460 mm
Weight (without accessories): 9 kg
TEMPERATURE MEASUREMENT

Sensor: PT100
Range of temperature measurement: 4 to 90 °C
Resolution: 0.1 °C
Precision: 0.1 °C
Accuracy: 1/3 DIN B (±0.1 °C at 0 °C / ±0.8 °C at 400 °C)
Location of temperature measurement: inside sample liquid
External sensor: optional
ENVIRONMENT

Operating temperature 15 to 30 °C
Humidity without condensation
TEMPERATURE CONTROL

Type of temperature control: optional: double-walled glass column
Range of temperature control: 4 to 90 °C
(additional thermostat needed: TB14)
ACCESSORIES

Glass columns: 20 and 40 mm diameter, temperature control option
Filter plates for sparging: diameter – 14 and 30 mm
Filter plate porosities: G1 – nominal maximum pore size: 100 to 160 μm
G2 – nominal maximum pore size: 40 to 100 μm
G3 – nominal maximum pore size: 16 to 40 μm
G4 – nominal maximum pore size: 10 to 16 μm
Material of columns and frits: borosilicate glass (norm: ISO 4793)
Material of sealings: silicone and FKM
LINE SENSOR

Sensor resolution: 1728×1px
Spatial resolution: 200 dpi, 0.125 mm
Temporal resolution: 20 fps
Scanning length: 216 mm
OPERATING SYSTEM

Internal gas flow rate: 0.2 to 1 L/min
External gas flow rate: 0.05 to 1 L/min
Approved gases: air
nitrogen
carbon dioxide
Approved pressure: 5 ± 0.5 bar
Approved temperature: 4 to 90 °C
Stirring speed: up to 8000 rpm
ILLUMINATION

Type: LED
Wave length, dominant (height detection): 469 nm (optional IR: 850 nm)
MEASUREMENT SPECIFICATIONS

Analyzed foam characteristic foamability and foam stability
Results: foam height
liquid height
total height
foam capacity
maximum foam density
expansion rate
foam half life time
drainage half life time
sample temperature
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Category: Foam Analyzers