Automatic water vapour permeability tester

Automatic water vapour permeability tester


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Measuring & Gauging Tools

YJEstec CO., LTD.

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Country / Year Established
South Korea South Korea /
Business type
Others
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16

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Product name Automatic water vapour permeability tester Certification -
Category Measuring & Gauging Tools Ingredients -
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Product Information

Automatic water vapour permeability tester LYSSY L80-5000

Accurate results in minimum time

With the most up-to-date L80-5000 moisture tester, quick and reliable measuring of the water vapour permeability of packaging foils and films, complex membranes, such as those used in hygiene and for surgical products, as well as other water vapour barriers, becomes routine.

Whether dealing with films or textiles with extremely high or very low water vapour permeability, the L80-5000 gives accurate and extremely reproducible values in the minimum time.

A measuring system which has become standard

The instrument operates according to the dynamic measuring method used successfully for decades which has since become standard. The specimen fixed a self-adhesive mask is used as a barrier between a space with a saturated atmosphere and the measuring space with low reletive humidity, The extremely sensitive moisture sensor on AIO2 substrate is located in the upper measuring chamber.

Depending on the humidity, the sensor changes both its resistance.

Thanks to its large, linear dynamic measuring range, a minimal hysteresis and the extremely short reaction time, this new humidity sensor is particularly suitable for this application.

An approved operating principle

The upper measuring chamber can be closed for the measuring procedure with two solenoid valves or be flushed through with dried air.

The measuring principle is amazingly simple.

  • Dry the measuring chamber to a defined value and close the valves.
  • Increase the humidity in the measuring chamber dependent on the water vapour permeability of the sample.
  • Measure the time required for a small increase in the relative humidity (rH) as a value defined by two set limits.

-> The more permeable the filem, the shorter the measuring time.

Calibrate ... measure, measure, measure...

Firstly, the instrument is calibrated with a test standard of known water vapour permeability in defined conditions. the micro-processor calculates a factor from the resulting time intervals which allows direct evaluation of permeability in g/m2 per day from the sample measurements. Calibration is automatically repeated until the results obtained level out within a pre-defined variation.

Accurate and reliable measuring results

During measuring, the sample fixed in the self-adhesive measuring mask is analysed under the same conditions as the standard. Time requirement is expressed directly in g/m2 per day and recorded together with date and time on a printput.

A compack instrument for even more reliable and accurate results

The new L80-5000 is the latest member or the fifth generation of the tried and approved L80 Series which has been used successfully for decades in many labs all over the world.

All the elements of the measuring equipment and its connecting calbes, all the electronics, the printer, the alphanumerical keyboard and the easy-to-read luminescent display as well as all the electrical connections are inside a compact casing protected from external interference.

Temperature-controlled measuring

The water vapour permeability of plastics is extremely temperature- dependent. That is why the L80-5000 can be used at precisely the required measuring temperatures. For measurements below 30°C, the measuring chamber can be cooled down to the lower temperatures with a cooling thermostat which is commercially available.

For faster equilibrium adjustment of hydrophilic materials, the samples to be measured can be preconditioned outside the instrument

Wide range of applications

  • Water vapour permeability of films and complexes
  • Blister packaging and blister materials
  • Super-barriers on an SiOx substrate
  • Metallized foils
  • Impermeabilized fabrics
  • Sugical and hygienic membranes
  • PUR-coated fabrics for nursing
  • Roofing felt and roofing water vapour barriers
  • Stable fibre coating s and coated paper

technical Specifications

Measuring range 0.03 - 10,000 g/m2 per day
Test area 50 cm2
Clamp size 100 x 110 mm
Sample thickness 0.01 - 15 mm
Equilibrium detector 0 - 99.9%
Reproducibility ±1.5%
measuring interval 0.05 - 10% rel H
mains connection 100/110/220/240/ V 50/60 Hz
Membrane keyboard alphanumerical
Data communication V 24 / RS 232 C
Time requirement for measuring a hydrophobic, homogeneous film:
1 g/m2 per day level < 1 hour
20 g/m2 per day level < 5 minutes
Dimensions (L x W x H) 400 x 480 x 486 mm
Weight 26.5 kg

All data according to present state of development, without any obligation and under reserve of modifications.

International patents and standards

The L80 measuring principle conforms to the most important international standard.

  • ASTM E 398-83
  • ISO/CD 15106
  • JIS K 7129 (1992)
  • TAPPI T 523 os-76
  • NF H 00 044 (1990)

Sccuracy and quality management

The new L80-5000 is manufactured in Swizerland in a factory certified to ISO 9001 and in accordance with EC conformity.

Your Quality Assurance

For manufactures and users alike, the L80-5000 is an indispensable tool for Quality Assurance, This instrument could perhaps become your most profitable investment in avoiding damage or as a safeguard in prodect liability cases.

B2B Trade

Price (FOB) Negotiable transportation -
MOQ Negotiable Leadtime Negotiable
Payment Options Negotiable Shipping time Negotiable

YJEstec CO., LTD.

Country / Year Established
South Korea South Korea /
Membership
BIZ
Business type
Others

16

DUNS

President
LEE SHIN HYUNG
Address
310-2, Yadong-dong, Paju-si, Gyeonggi-do, KOREA
Product Category
Other Plastic Product Making Machinery
No. of Total Employees
1-50
Company introduction

Dear prospective customers, We are pleased to get this chance to introduce ourselves to you who might be our valuable customers in the future. We have two business divisions. One is to manufacture industrial cleaning machines. The other is trade business to sell our customers in the world Industrial Molds & Dies Cleaning System We have been focusing on industrial molds,Dies cleaning system over 20 years. Now, we manufacture the industrial fluidized cleaning system which removes polymeric residues, coatings, contaminations and other organic materials from metal parts and extruder hardware. We are exporting the industrial fluidized cleaning system to many companies all over the world. Importer We are one of the leading importers dealing with some kinds of test instruments that would be handled most of the laboratories and the industrial fields, such as calibrators, micro-ohmmeters, furnaces, water vapor testers, and so on. Since 1979, we have endeavored to make our customers satisfied and gained a good reputation as steady supplier of instruments of the highest quality and as the best manufacturer of industrial cleaning machines. We will be a company to promise you best quality, accurate deliver and reasonable price with long experience and field knowhow. Thank you for your attention and we sincerely look forward to serving you in the nearest future. Best Regards,

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