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FT – Foam Tester

Measuring foam formation and decay speed for quality control – reliably and reproducibly

Foam is a welcome companion to many products, but almost as often it is a nuisance that must to be avoided. Either way, for quality control of your products and processes, it is necessary to exactly determine the foaming behavior of the liquids and foam-inhibiting additives involved. The easy-to-use Foam Tester – FT carries out this task reliably and in an exactly repeatable manner. Using accurately controlled gas flow and precise electronic foam height measurement, the Foam Tester gives you significant results for the foaming capacity of your liquid and the decay speed of the resulting foam.

Category: Tags: , , Brand:

  • Foam-inhibiting and foam-reducing agents (anti-foaming agents/defoamers)
  • Foam prevention for paints and varnishes, process and waste water, or cooling lubricants
  • Foams for washing and cleaning
  • Foams in food and personal care products
  • Firefighting foams
  • Flotation as a method for separating solids

MEASURING METHODS

  • Foamability and foam stability using the optically detected height of foam created reproducibly
  • Carrying out a measurement up to 20 consecutive times and displaying the results together

MEASURING RESULTS

  • Maximum foam volume and height
  • Foam capacity
  • Decay curves: total height and volume as well as foam and liquid height and volume at each measured point in time
  • Time values for the reduction of liquid volume in foam and foam volume to 50% (foam half-life)
  • Sample temperature

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 –

POWER SUPPLY

Voltage 100 to 240 VAC
Power consumption maximum 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 double-walled glass column
Range of temperature control 4 to 90 °C
(additional thermostat needed: TB14)
Resolution 0.1 °C

INTERFACES

PC 1× USB 2.0

ACCESSORIES

Glass columns 40 mm diameter, temperature control option
Filter plates for sparging –
Filter plate porosities –
Material of columns and frits –
Material of columns and filters column: borosilicate glass, norm: ISO 4793, filter paper: cellulose
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 × 1 px
Spatial resolution 200 dpi | 0.125 mm
Temporal resolution 5 fps
Scanning length 216 mm

OPERATING SYSTEM

Internal gas flow rate 0.2 to 1.0 L/min
External gas flow rate 0.05 to 1.0 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 –
Highest sensor position –
Measured entity –
Theoretical measurement range –

ILLUMINATION

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

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
Foaming –
Resolution –
Results foam height
liquid height
total height
foam capacity
foam half life time
drainage half life time
sample temperature

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