Oxygen testing system C406H

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C406H is a combined oxygen and water vapor transmission rate testing system using a coulometric oxygen sensor and a patented infrared moisture sensor to deliver high‑precision OTR and WVTR measurements for films, sheets and related materials.

Product Features

• Combined OTR/WVTR testing: selectable OTR+WVTR, OTR‑only or WVTR‑only modes with automated sequential testing on the same sample to avoid cross‑contamination.
• Coulometric oxygen detection: ppb‑level coulometric oxygen sensor with absolute‑value measurement (per ASTM D3985), extended service life and built‑in over‑limit alarm/protection.
• Infrared moisture detection: patented IR moisture sensor (per ASTM F1249) with low detection limit, non‑consumable operation and automatic protection.
• Accurate control and monitoring: advanced test cell structure with 360° air circulation; automatic control of flow, temperature and relative humidity; high‑precision humidity sensor for real‑time monitoring.
• High throughput design: multi‑cell concept for parallel testing under identical conditions (6 independent test chambers, standard area 50 cm²).
• Intelligent operation: integrated Windows‑based 12" touch panel, automatic test mode (one‑key start after entering target conditions), automatic hood with audible/visual alerts.
• Safety & reliability: embedded industrial computer for secure data storage; optical and intelligent sensors with alarms; use of globally recognized components.
• Space saving: compact footprint compared with traditional multi‑cell instruments.
• Powerful functions: professional test modes, display of OTR/WVTR curves and coefficients, temperature and humidity curves; optional gas purification for oxygen‑free carrier gas.

Testing Principle

• The pre‑conditioned specimen is clamped between test chambers. Oxygen (or controlled humidity gas) flows on one side while high‑purity nitrogen flows on the other. Molecules diffusing through the specimen are carried by the nitrogen stream to the respective sensor (coulometric oxygen sensor or infrared moisture sensor) and transmission rate is calculated from sensor concentration measurements.

Reference standards

• ASTM D3985, ASTM F1307, GB/T 19789, GB/T 31354, DIN 53380‑3, JIS K7126‑2‑B, YBB 00082003‑2015
• ASTM F1249, ISO 15106‑2, GB/T 26253, JIS K7129, YBB00092003‑2015

Test applications

• Films: plastic films, paper‑plastic composite films, co‑extrusion films, aluminized films, aluminum‑foil composite films, glass‑fiber/aluminum/foil/paper composites and other film‑like materials.
• Sheets: PP sheet, PVC sheet, PVDC sheet, metal foil, rubber sheet, silicone sheet and other sheet materials.

Technical specifications

• Model: C406H
• OTR test range (standard area 50 cm²): 0.02 to 200 cc/(m²·day); optional mask areas extend ranges up to 10000 cc/(m²·day) for smaller mask areas
• OTR resolution: 0.0001 cc/(m²·day)
• OTR repeatability: 0.02 cc/(m²·day) or 1%, whichever is greater
• WVTR test range (standard area 50 cm²): 0.02 to 40 g/(m²·day); optional masks extend ranges up to 2000 g/(m²·day)
• WVTR resolution: 0.0001 g/(m²·day)
• WVTR repeatability: 0.02 g/(m²·day) or 2%, whichever is greater
• Temperature range: standard 15 °C to 50 °C (customized 5 °C to 60 °C available)
• Temperature fluctuation: ±0.15 °C
• Humidity range (within standard temperature): 0%, 5–90% ±2%, 100% RH
• Test chamber: 6 independent test chambers; standard test area: 50 cm²
• Specimen size: 4.6” × 4.6” (11.7 cm × 11.7 cm); specimen thickness ≤ 120 mil (3 mm)
• Carrier gas: 99.999% high‑purity nitrogen; 99.5% oxygen (gas supply not included)
• Carrier gas pressure requirement: ≥ 40.6 PSI / 280 kPa
• Port size: 1/8 inch metal tubing (standard PU pipe Φ 6 mm for gas supply; see remarks for pressure requirements)
• Power supply: 120 VAC ±10% 60 Hz or 220 VAC ±10% 50 Hz
• Instrument dimensions (H×W×D): 23.6” × 19.2” × 25.9” (60 cm × 49 cm × 66 cm)
• Net weight: 220 lbs (100 kg)
• Extended/optional functions: GP‑01 Gas Purification Unit (optional), DataShield™ (optional), GMP computer system support (optional), CFR21 Part11 (optional)
• Standard configuration: mainframe, tablet, sampler, vacuum grease, 6 mm diameter polyurethane pipe (standard accessories)
• Optional parts: GP‑01 Gas Purification Unit, air compressor, CFR21 Part11, GMP computer system requirements and DataShield™ (sold separately)