Description
WVTR 216 is based on the infrared sensor method and available for the water vapor permeability test of flexible films, sheeting and packages. It can test 6 specimens in one operation with independent results.
WVTR 216 Water Vapor Permeability Tester
WVTR 216 is based on the infrared sensor method and available for the water vapor permeability test of flexible films, sheeting and packages. It can test 6 specimens in one operation with independent results.
Application Content
WVTR 216 is based on the infrared sensor method and available for the water vapor permeability test of flexible films, sheeting and packages. It can test 6 specimens in one operation with independent results.
Films
Plastic films, aluminum foil, aluminized films, plastic composite films, paper-plastic
composite films, coextruded films, aluminum foil composite films and many others.
Packages
Plastic, rubber, paper, paper-plastic composite, glass and metal packages, e.g. red wine
bottles, blister, various plastic bottles, beverage bottles, peanut oil packages, composite
paper packaging materials, vacuum bags, metal three-piece cans, plastic packages for
cosmetic, soft tubes for toothpaste, jelly and yogurt cups.
Features Content
- Infrared sensor method
- Own technology
- Film and package test
- 6 specimens test simultaneously and independently
- One-button test, test automatically in whole process
- Multiple test modes optional
- Data curves display
- Computer control
- Digital flow adjustment
- 6 Chambers with 6 temperature sensors
- Environment temperature and humidity sensor inside
- Chambers water bath technology
- Unit based on embedded system,24bit Δ-Σ AD
- Pressure, ppm water sensor and temperature overload protection
- Traceable reference film calibration
- Supports DSM system (DSM, lab data management system)
Principles Content
Film:
The specimen is clamped between the upper and lower chamber, the upper chamber is
purged by high humidity nitrogen stream, and the other side of specimen, lower chamber is
purged by a stream of dry nitrogen, due to the effect of water concentration gradient at two
sides of the specimen, water molecules will permeate through the specimen into the dry
nitrogen side, penetrated water molecules will be carried to the infrared sensor which
generates the proportional signal, so water vapor transmission rate will be obtained by
calculating the sensor signal.
Package
The package is mounted on the lower chamber,the outside of the package is specified relative
humidity, the inside of the package is purged by a dry nitrogen stream, water vapor will
permeate through the wall into the inside of the package, penetrated water molecules will be
carried to the infrared sensor which generates the proportional signal, so water vapor
transmission rate will be obtained by calculating the sensor signal.
Technical Indexes Content
Test range：
Film: 0.005-42 g/m2·24h (Standard)
0.05-1000 g/m2·24h (Optional)
Resolution: 0.001 g/m2·24h
Package: (optional)
0.0001~0.3 g/pkg·d
Resolution: 0.00001g/pkg·d
Specimen amount: 6 specimens, independent
Temperature range: 5C– 95C
Temperature accuracy: ±0.1C
Humidity range: 0%RH,35%RH-90%RH,100%RH, standard condition 90%RH
Humidity accuracy: ±1%RH
Test area: 50cm2
Specimen size:
Film: size: >=150mm * 94mm; thickness: less 3mm
Package: max size: D120mm * 400mm
Carrier gas: 99.999% Nitrogen
Carrier flow: 0~200ml/min
Gas interface: 1/8inch
Power supply: AC 220V 50Hz
Dimension: 730mm(L) * 590mm(W) * 350mm(H)
Net weight: 56kg
Standards Content
ISO 15106-2, ASTM F1249, GB/T 26253-2010, TAPPI T557, JIS 7129
Configuration Content
Delivery
Main unit, computer, W-TRANS software, temperature controller, tank regulator, PCIE card, communication cable, sample cutter, vacuum grease.
Optional
Package fixtures, reference film, vacuum grease, sample cutter, DSM system.
