C330H Water Vapor Transmission Rate Test System, is designed and manufactured based on the electrolytic sensor method and conforms to the requirements of ISO 15106-3. This instrument can be used to measure the water vapor transmission rate of barrier materials with high and medium moisture barrier properties with a wide testing range and high testing efficiency. The instrument is featured with patented design of integrated block consisting of 3 test cells. Equipped with high precision sensors and professional computer-controlled system, the instrument can regulate and control the temperature, humidity and flow rate precisely, guaranteeing the testing sensitivity and repeatability of test results. C330H is applicable to determination of water vapor permeability of plastic films, sheeting, paper, packages and other relative packaging materials in food, pharmaceutical, medical apparatus, consumer goods, photovoltaic and electronic industries, etc. 
 High Precision 
  -  Labthink electrolytic sensor for water vapor analysis with higher  sensitivity. 
   -  Patented integrated test block with advanced hydrodynamic and  thermodynamic design 
   -  Temperature and humidity are accurately and automatically controlled  throughout the test, eliminating the need for operator intervention or separate  data-logging devices. 
   -  Temperature and humidity sensor for independent monitoring of test  cells. 
 
 High Efficiency 
  -  Three identical specimens can be tested simultaneously, which meets the  requirements for parallel test. 
   -  Three distinct specimens can be tested under same testing condition,  delivering higher throughput while reducing the number of instruments required. 
 
 Labor Saving 
  -  Automatic temperature and humidity control eliminate the need for  operator monitoring and adjustment. 
   -  Automatic flow rate control ensures constant flow during the  testing process and minimizes any errors caused by an unstable flow rate. 
   -  No need to verify the system using different reference film for  different testing range. 
 
 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 
 Patented Sensor Technology
  The instrument uses Labthink’s proprietary  electrolytic sensor for water vapor analysis, which has excellent precision,  repeatability and service life. As a coulometric electrolytic sensor, its  signal follows the Faraday principle and has a very high sensitivity. 
 New Generation Integrated Testing Block
  The  patented three-cell integrated test block structure using advanced  thermodynamics and hydrodynamics analysis greatly improves the temperature,  humidity and flow measurement accuracy across the three test cells and supports  simultaneous testing of three samples. 
 Automatic Control of Temperature and Humidity
  The  internal temperature and humidity of the instrument are automatically adjusted  with temperature and humidity sensors, maintaining the stability of the test  specimen environment. 
 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, meets the requirements for 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 diffusion cell, which is divided into a dry chamber and a controlled-humidity chamber. The dry side of the specimen is swept by a flow of dry nitrogen, and the water vapor permeating through the specimen from the controlled-humidity chamber is carried by dry nitrogen to the electrolytic sensor where proportion electrical signals will be generated. The water vapor transmission rate is obtained by analyzing and calculating the electrical signals. For whole package specimen, the dry nitrogen flows inside the specimen while the outside of specimen is maintained in a high humidity environment. 
 Test Standards 
 ISO 15106-3, ASTM F3299, GB/T 21529, YBB 00092003-2015 
Applications
            | Basic Applications |     
           Films           Plastic films, paper-plastic composite films, coextruded films, aluminum foils, aluminum composite films, glass fiber aluminum foil composite films and many others.  |     
           Sheeting           PP, PVC and PVDC sheets, metal foils, rubber pads, silicon wafers and other sheeting materials.  |     
           Packages           Plastic, rubber, paper, paper-plastic composite, glass and metal packages, e.g. plastic bottles, pouches, coated paper cartons, vacuum bags, metal three-piece cans, plastic packages for cosmetics, soft tubes for tooth paste, jelly and yogurt cups.  |     
          | Extended Applications |     
           Closure Systems           Water vapor barrier property of various closure systems for bottles, cartons and pouches.  |     
           Solar Back-sheets           Water vapor permeability test of solar back-sheets  |     
           Plastic Tubes           Water vapor permeability test of various sorts of tubes e.g. cosmetic tubes  |     
           Blister Packs           Water vapor transmission rate of whole blister packs  |     
           Automotive and Small Engine Fuel Tanks           Permeability of plastic fuel tanks  |     
           Battery Plastic Shell           Water vapor transmission rate of battery plastic cell  |     
  
 Technical Specifications 
 Table 1: Test Parameters Note1 
            | Parameter |       Model C330H |     
          | Test Range |       g/(m2·day) (Standard) |       0.005 ~ 50 |     
          | g/(100in2·day) |       0.0003 ~ 3.223 |     
          | g/(pkg·day)(Package) |       0.000025 ~ 0.25 |     
          | Resolution |       g/(m2·day) |       0.001 |     
          | Repeatability |       g/(m2·day) |       0.005 or 2% |     
          | Test Temperature |       °C |       10 ~ 55 ±0.2 |     
          | Test Humidity |       RH |       5% ~ 90% ±1%, 100% |     
          | Additional Functions |       Package Test (3L Max.) |       Optional |     
          | DataShieldTM Note2 |       Optional |     
          | Computer System required by GMP |       Optional |     
          | CFR21 Part11 |       Optional |     
  
 Table 2: Technical Specifications 
            | Test Chamber |       3 test chambers |     
          | Specimen Size |       108mm X 108mm |     
          | Specimen Thickness |       ≤3mm |     
          | Standard Test Area |       50cm2 |     
          | Carrier Gas |       99.999% High-purity Nitrogen (outside of supply scope) |     
          | Carrier Gas Pressure |       ≥0.28MPa / 40.6psi |     
          | Port Size |       1/8 inch metal 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. 
 Contact Us!       We can help you select or customize the proper unit for your test requirements.