Product Description
High Precision
- Patented test chamber and test dishes with advanced fluid dynamics and thermodynamic designs.
- Labthinks proprietary thermostat technology ensures that the test chamber is precisely temperature controlled and remains stable throughout the test.
- Precise and scientific regulation and calculation of testing conditions.
High Efficiency
- 12 test stations
- Supports test modes of desiccant method and water method
Labor Saving
- Automatic humidity and flow rate controlling.
- Desiccator requires no replacement of inner core.
- High-efficiency water vapor generator.
Simplified Operation
- 12 touch-screen pad powered by WindowsTM 10 operating system
- Fast automatic testing process
- Optional DataShieldTM software and accessories for automatic data management
Product Features
New Generation Test Chamber and Test Dishes
Patented test chamber and test dishes with advanced hydrodynamic and thermodynamic designs ensure the uniform flow rate over the specimen surface, stable temperature and humidity, creating a uniform and stable testing environment. As a result, the test duration is shortened and the test results will be more accurate.
Excellent Testing Abilities of High and Low Barrier Materials
The testing conditions will be regulated precisely in real time, which ensures the high testing accuracy and repeatability of high and low barrier materials.
Automatic Controlling of Temperature, Humidity and Air Velocity
Labthinks proprietary thermostat technology ensures that the test chamber is precisely temperature controlled and remains stable throughout the test.
Air velocity is monitored and regulated in real time.
High-efficiency and mist-free automatic humidity regulator meets the requirements for long-term continuous tests.
It is unnecessary to replace the inner core of the desiccator, which can continuously work for 20,000 hours.
Easy-to-use and High-efficiency System
The automatic test mode, combined with the instrument features, eliminates the need for manual adjustments to quickly obtain accurate results, saving training costs and releasing staff from manual monitoring so that they are available for other tasks.
The professional test mode provides flexible and rich instrument control functions to meet individual scientific research needs.
Unique, optional DataShieldTM system facilitates centralized management of user data. It supports a variety of formats of exported data. Reliable security algorithms are used to prevent data leakage. It supports universal wired and wireless LAN, optional private wireless network and third-party software.
User-oriented Service Concept
Adhering to our user-oriented service concept, Labthink has created a customization system that provides flexible and comprehensive customization services for the accommodation of non-standard specimens and packages.
Test Principle
The test specimen is mounted in the test dish which contains water or desiccant inside. The test dish is placed in the test chamber with stable temperature, humidity and air flow. The water vapor permeates through the specimen and into the dry side. By measuring the weight changes of the test dish periodically, water vapor transmission rate and other parameters can be obtained.
Test Standards
ASTM E96, ASTM D1653, ISO 2528, TAPPI T464, DIN 53122-1, GB/T 1037, GB/T 16928, YBB 00092003-2015
Applications
| Basic Applications |
- Films
Plastic films, plastic composite films, paper-plastic composite films, coextruded films, aluminum coated films, aluminum foil composite films, glass fiber aluminum foil paper composite films and many other film materials
|
- Sheeting
PP, PVC and PVDC sheeting, metal foils, rubber pads and other sheeting materials
|
- Paper and Paper Board
Aluminum coated paper for cigarette, paper aluminum plastic composite film and other paper and paperboards
|
- Textiles and Nonwovens
Textiles and nonwoven fabrics
|
| Extended Applications |
- Construction Materials
Geotextiles, felt, roofing and building materials, vapor barrier membranes, etc.
|
- Aseptic Wound Protection Films and Medical Plasters
Aseptic wound protecting films, medical plasters and protective clothing materials
|
Technical Specifications
Table 1: Test Parameters Note1
| Parameter |
Model C360H |
| Testing Efficiency |
0.01g/(m2day) 0.5g/(m2day) |
>24 hours |
| 0.0006g/(100in2day) 0.0323g/(100in2day) |
| 0.5 g/(m2day)5 g/(m2day) |
12 24 hours |
| 0.0323g/(100in2day) 0.3225g/(100in2day) |
| > 5 g/(m2day) |
12 hours |
| > 0.3225 g/(100in2day) |
| Max. Test Range |
Water Method |
10000/ni141-12i14g/(m2day) |
| 645/ni141-12i14g/(100in2day) |
| Desiccant Method |
1200g/(m2day) per piece |
| 77g/(100in2day) per piece |
| Test Station |
|
12 |
| Test Temperature |
C |
20 55 0.2 |
| Test Humidity |
RH |
10% 90% 1% |
| Additional Functions |
DataShieldTM Note2 |
Optional |
| Computer System required by GMP |
Optional |
| CFR21 Part11 |
Optional |
Table 2: Technical Specifications
| Specimen Size |
I74mm |
| Specimen Thickness |
3mm |
| Test Method |
Desiccant Method / Water Method |
| Standard Test Area |
33cm2 |
| Carrier Gas |
Compressed Air |
| Drying of Carrier Gas |
Long Service-life Desiccator (unnecessary to replace inner core) |
| Humidifying of Carrier Gas |
High-efficiency mist-free humidity generator |
| Carrier Gas Pressure |
0.6 MPa |
| Port Size |
I6mm PU Tubing |
Note 1: The parameters in the table are measured by professional operator in Labthink laboratory according to relative requirements for laboratory standard conditions.
Note 2: DataShieldTM provides safe and reliable data application support. Multiple Labthink instruments can share one single DataShieldTM system which can be purchase as required.
Note 3: The described product features should be in line with Table 1: Test Parameters.
Advanced Data Handling and OutputWith digital reporting and USB export capabilities, the WVTR Testing Instrument streamlines data management. Results are displayed on an LCD digital screen and can be stored or transferred easily, enabling quick analysis and traceability. Its programmable features offer tailored testing and comprehensive digital documentation for every measurement.
Efficient, Precise, and Versatile TestingOffering a measuring range of 0.1-5000 g/m224h with 2% FS accuracy and 0.01 g/m224h resolution, this instrument ensures reliable results across multiple applications. Three samples can be tested simultaneously, maximizing laboratory efficiency. The test speed and stroke are easily adjustable, supporting a broad range of materials and test conditions.
FAQ's of WVTR Testing Instrument for Polymer Waterproof Coil Technology:
Q: How does the WVTR Testing Instrument work for measuring water vapor transmission rates in polymer waterproof coils?
A: The instrument uses electrolytic and infrared sensors to accurately measure the amount of water vapor permeating through a polymer sample in a controlled environment. It operates under programmable temperature and humidity, ensuring repeatable conditions for each test.
Q: What materials can be tested with this WVTR instrument, and what is the specimen size requirement?
A: This device is suitable for polymer waterproof coils, films, foils, and membranes. Each specimen should have a standard size of 74 mm to fit the sample holder, and up to three specimens can be tested simultaneously.
Q: When should I use the built-in calibration features, and how do they ensure accuracy?
A: Calibration should be performed regularly, such as before a new testing cycle or after maintenance. The instrument supports both automatic and manual calibration, ensuring consistent accuracy within 2% FS per industry standards.
Q: Where can this testing instrument be installed and what is the suitable operating environment?
A: The instrument is designed for desktop or laboratory use, specifically in temperature-controlled laboratories. Proper environmental regulation, especially regarding temperature (15C-50C) and humidity (10%-90% RH), ensures accurate and reliable measurements.
Q: What is the process for conducting a WVTR test using this device?
A: Users mount standard-sized specimens in the chamber, configure programmable parameters such as test duration, temperature, and humidity, then initiate the test. During operation, gas (dry nitrogen or air) is supplied, and data is logged and displayed digitally, with automatic alarms signaling test completion or abnormalities.
Q: How does automated alarming benefit the testing process?
A: The instrument's alarm system automatically notifies operators upon test completion or in case of abnormal states such as gas flow inconsistencies, minimizing human monitoring requirements and reducing the risk of errors during long or unattended tests.
Q: What are the main benefits of using the WVTR Testing Instrument for quality control and research?
A: This instrument offers precise measurement, high data reproducibility, multi-sample throughput, and full compliance with major international standards. Its programmable, user-friendly system saves time and supports robust quality control or research and development workflows.