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DFA100LCM – Dynamic Foam Analyzer

Analyzing liquid content and drainage of foam

The LCM Liquid Content Module for the DFA100 measures the moisture of foams with respect to time on different foam height levels. The results are obtained by detecting the foam’s conductivity as a proven method. They provide you with knowledge about a foam’s stability and help you optimize products where moisture plays a key role, such as washing foams.

Category: Tags: , , Brand:

  • Foams for washing and cleaning
  • Foams in food and personal care products
  • Surfactant development
  • Firefighting foams
  • Flotation as a method for separating solids

ACCESSORIES

CY4502

Column for foam height with small sample volume

CY4503

Temperature Control Column for foam height and liquid content

FI4501

Sealing rings for different foaming methods and liquids (for sample holder predecessor models)

FI4504

Sealing rings for different foaming methods and liquids (for sample holder predecessor models)

FI4506

Sealing rings for different foaming methods and liquids (for sample holder predecessor models)

FI4531

Sealing rings for different foaming methods and liquids

FI4533

Sealing rings for different foaming methods and liquids

FI4550

Sealing rings for different foaming methods and liquids

INSTRUMENT DIMENSIONS

Footprint 245 mm × 275 mm (W × D)
Height 460 mm
Weight (without accessories) 10 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

POWER SUPPLY

Voltage 100 to 240 V
Power consumption 30 W
Frequency 50 to 60 Hz

SAMPLE DIMENSIONS

Min. recommended sample volume 50 mL with 40 mm diameter column

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)
Resolution –

INTERFACES

PC 1× USB 2.0

ACCESSORIES

Glass columns 40 mm diameter, temperature control option
Filter plates for sparging diameter: 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 columns and filters –
Material of sealings silicone and FKM
Receiver –

PRESSURE MEASUREMENT

Precision –

SAMPLE STAGE

Travel distance –

DRIVE

DATA OUTPUT

CAMERA SYSTEM

Diameter of minimum detectable bubble –
Mean field of view size –
Focus –

LINE SENSOR

Maximum measurable height –
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 –

CAMERA SYSTEM (STANDARD)

Connection –
Performance –

ELECTRODES

Material 35 μm copper, finish: chemical gold
Highest sensor position 185 mm
Measured entity electrical resistance in Ω
Theoretical measurement range 10 Ω to 2 MΩ

ILLUMINATION

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

SOFTWARE

Software type ADVANCE
Available software modules foam analysis

BUBBLE PRESSURE

Precision (surface tension) –

MEASUREMENT SPECIFICATIONS

Measurement type –
Analyzed foam characteristic foamability and foam stability
liquid content and drainage
Foaming –
Resolution –
Results foam height
liquid height
total height
foam capacity
maximum foam density
expansion rate
foam half life time
drainage half life time
sample temperature
liquid content at 7 sensor positions
resistance at 7 sensor positions
25%, 50%

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