Humidity tester C360M

temperatureair flowwater vapor permeability

The C360M Water Vapor Transmission Rate (WVTR) Test System is a gravimetric-method instrument for accurate WVTR determination of barrier materials according to ASTM E96 and related standards. It combines a patented multi-dish chamber, precision test dishes and a high-precision balance with embedded software for automated control of temperature, humidity and air flow.

Key advantages

• Patented multi-dish chamber and precision test dishes engineered for uniform flow and stable thermal conditions across the specimen surface.
• Proprietary thermostat technology for precise chamber temperature control and high measurement stability.
• Real-time regulation and calculation of temperature, relative humidity and air velocity to ensure repeatability.

High efficiency and automation

• Six simultaneous test stations to increase throughput.
• Supports both desiccant (desiccant method) and water (water method) test modes.
• Automatic humidity and flow-rate control; long-life desiccator design (no inner-core replacement required).
• High-efficiency, mist-free automatic humidity generator for extended continuous testing.

Operation and data handling

• 12" touch-screen with Windows 11 for intuitive operation and fast automated testing sequences.
• Embedded professional software for automatic parameter control; optional DataShield™ software and accessories for centralized secure data management and multi-format export.

Product features and capabilities

• New-generation chamber and dishes shorten test time and improve accuracy via a uniform and stable environment.
• Designed for accurate measurement of both high- and low-barrier materials with precise real-time condition control.
• Automatic air-velocity control and monitoring; desiccator continuous life up to ~20,000 hours.
• Flexible professional modes for R&D and optional centralized data management (DataShield™).

Test principle
The specimen is mounted in a test dish containing water or desiccant and placed in the controlled chamber. Water vapor permeates through the specimen; periodic weight measurements of the dish yield WVTR and related parameters.

Test standards

• ASTM E96
• ASTM D1653
• ISO 2528
• TAPPI T464
• DIN 53122-1
• GB/T 1037
• GB/T 16928
• YBB 00092003-2015

Applications

• Films: plastic films, composite films, coextruded films, aluminum-coated and foil composites.
• Sheeting: PP, PVC, PVDC sheets, metal foils, rubber sheets.
• Paper and board: aluminum-coated paper, plastic-aluminum-paper composites.
• Textiles and nonwovens.
• Extended uses: construction materials (geotextiles, vapor-barrier membranes), aseptic wound-protection films, medical plasters, packaging and industrial barrier materials.

Specifications

• Model: C360M
• Test stations: 6
• Specimen size: Ø74 mm; standard test area 33 cm²
• Specimen thickness: ≤ 3 mm
• Test temperature: 20 ~ 55 °C ±0.2 °C
• Test humidity (RH): 10% ~ 90% ±1%
• Typical measurable low range: 0.01 g/(m²·day) ~ 0.5 g/(m²·day); higher ranges up to >5 g/(m²·day) depending on method
• Max. test range (Water Method): up to 10000/n (1-6) g/(m²·day) (model-dependent grouping)
• Max. test range (Desiccant Method): up to 1200 g/(m²·day) per piece
• Carrier gas: compressed air, pressure ≥ 0.6 MPa; tubing Φ6 mm PU
• Drying: long-life desiccator (no inner-core replacement required)
• Humidifying: mist-free high-efficiency humidity generator
• Display / interface: 12" touch-screen, Windows 11, embedded software
• Optional: DataShield™ centralized data management, GMP-compliant computer option, CFR21 Part 11 support