Tewameter® Triple TM 330T

• The Measuring Principle

  The open chamber measurement of the Tewameter® is the only method to assess the TEWL continuously, which is necessary for most applications without influencing the skin surface. Numerous studies are available.

• Advantages of the Tewameter® Triple TM 330T

  Why using 3 Tewameter® heads at the same time?

   

  Apart from the many advantages of the Tewameter® in general, the Tewameter® Triple TM 330T offers additional benefits

   

  • Extremely accurate and quick measurement of the TEWL without changing skin structure and the microclimate of the skin (pressure, occlusion, temperature). The small measurement chambers minimize the air turbulences inside the probe.

  • The three probe heads can be placed independently and completely flexible on the skin surface, e.g. close together or further apart. The setting is very easy.

  • With three probe heads a larger skin area can be measured reproducibly and very fast.

  • During the measurement the software shows the TEWL-value, the average and the standard deviation of each head. The overall average is also automatically calculated.

  • A measurement on three different skin sites (e.g. three different products) can be performed simultaneously under the very same environmental conditions in a very short time.
  • New sensor technology for precise and very stable measurements.
  • A suitcase to transport the probe serves at the same time as check calibration facility.

  

  

  

  

• Fields of Application

  The measurement of the Tewameter® is the basic measurement for all cosmetic applications. The three head probe is also especially suitable for sweat studies and an ideal tool for multicentric investigations.

  

  

  

• Technical Data

  Measuring:

  TEWL:

  ± 10 % of the measured value plus ±1 g/h/m² for RH between 5 % and 90 %

  ± 15 % of the measured value plus ± 2 g/h/m² outside this range

   

  Temperature (T):

  ± 0.2 °C for 10 °C to 60 °C

  ± 0.5 °C outside this range

   

  Relative humidity (RH):

  ± 2.0 % for 5 to 90 % RH and temperature 10 °C to 60 °C

  ± 3.0 % outside these ranges

   

  Technical changes may be made without prior notice.

   

  Probe only:

  Dimensions: 3 measuring chambers: each 2 cm, Ø 1 cm

  Length of the probe: approx. 24 cm width

  When all chambers are located close together: approx. 6.4 cm width

  Cable length: 1.3 m

  Weight: approx. 120 g

  Resolution:

  Relative Humidity: ± 0.01 % RH

  Temperature: ± 0.01 °C

  TEWL: 0.1 g/h/m²,

  Measuring range: TEWL 0-320 g/h/m²

   

   

  Technical changes may be made without prior notice.