Cubic Sensor and Instrument Co., Ltd

CubicModel AM4205H-LC-I-R32/R454B Series -NDIR Refrigerant Sensor

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AM4205H-LC-I-R32/R454B is an NDIR refrigerant gas sensor designed for A2L refrigerant dual gas R32/R454B leak monitoring in HVACR industry. Based on NDIR technology, the AM4215H-LC-I leverages a robust gas chamber design, a smart compensation algorithm, and matrix calibration to provide high accuracy and long-term stability over the full operating temperature range. Its dynamic heating control mechanism prevents condensation to avoid false alarms at harsh working temperatures up to 95°C. Fast response time of T40 ≤ 30 seconds fulfills timely leak detection and rapid safety alarm. AM4205H-LC-I-R32/R454B features an IP54 protection rating with an integrated wire harness design to make the sensor with compact dimensions flexible to adapt to different installation scenarios. AM4215H-LC-I dual gas compatibility enables the end customer's flexible inventory management. It is compliant with UL 60335-2-40:2022 Ed.4 Annex LL and certified by Intertek ETL.
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  • NDIR technology
  • High accuracy, long-term stability
  • Automatic heating mechanism for anti-condensation
  • High temperature resistance supports continuous operation at 95℃
  • Fast response time T40 ≤ 30s
  • Resistant to salt spray and harsh environments
  • The IP54 rating environmental protection
  • Long lifespan over 15 years
  • Compliant with UL 60335-2-40:2022 Ed.4 Annex LL
  • Intertek ETL certification supports A2L refrigerant safety applications
  • Principle: Non-dispersive infrared (NDIR) technology
  • Target gas: R454B/R32/R454C/R290
  • Measurement range: 0-100%LFL
  • Resolution: 0.01%LFL
  • Alarm value: 10%LFL by default
  • Accuracy: ±2.5%LFL@<25%LFL; ±10% of reading @25%~100%LFL
  • Sampling rate: ≤1s
  • Response time: T40≤30s
  • Output: UARTTTL@5V
  • Lifetime: >15 years
  • Protection level: IP54
  • Working conditions: -30~94℃; 0~95%RH (non -condensing, sustainable work)
  • Storage conditions: -40~70℃; 0~95%RH (non-condensing)
  • Working pressure: 80~120kPa
  • Anti-condensation: Anti-condensing
  • Frost recovery: Frost recovery time≤15min
  • Power supply: 5±0.2V DC
  • Average working current: ≤300mA
  • Peak current: ≤550mA