Refrigerant gas refrigerant gas sensor AM4207 Series

for A2L refrigerantsNDIRfor leak detection

Product overview Cubic AM4207 Series is an NDIR R1234yf refrigerant gas sensor for reliable refrigerant leak detection in refrigeration systems and cold chain transportation. The sensor offers high selectivity to R1234yf with strong resistance to CO2 interference, an integrated anti‑condensation heater and a built‑in reference channel with self‑compensation for long‑term stability and reduced false alarms. Designed for compact integration inside refrigeration equipment, it meets IEC 60335-2-40 requirements for refrigerant detection.

Applications

• Cold chain transportation (fruit & vegetable shipments)
• Refrigerated trucks and vans
• Cold rooms and refrigerated warehouses
• Refrigeration units and HVAC leak detection
• Early warning and safety monitoring systems

Key features

• NDIR (non‑dispersive infrared) sensing technology
• High selectivity to R1234yf; immune to common poisoning gases and CO2
• Automatic heating mechanism to prevent condensation
• Fast response for timely leak detection
• Long‑term stability and drift compensation via built‑in reference channel
• Compact design for in‑equipment installation
• IP66 protection level
• Compliant with IEC 60335-2-40 and relevant standards

Technical specifications

• Model: AM4207 Series
• Principle: NDIR (non‑dispersive infrared)
• Measurement gas: R1234yf
• Measurement range: 0–49,000 ppm (100% LFL ≈ 48,000 ppm)
• Resolution: 0.1%
• Sampling frequency: 1 Hz
• Time to first reading: ≤ 30 s
• Response time: T60 ≤ 30 s
• Alarm value: 5% LFL (≈ 9,300 ppm)
• Working temperature: -40 to 65 °C
• Storage temperature: -30 to 70 °C
• Working humidity: 0–100% RH with condensation
• Storage humidity: 0–99% RH (non‑condensing)
• Anti‑condensation with heater: 0 °C 0% RH → 8.5 °C 95% RH (rate of change 4 min, wind 2.4 m/s)
• Working pressure: 70–120 kPa
• Power supply: DC 5.0 V ±10%
• Peak current: <600 mA
• Protection level: IP66
• Lifetime: >12 years
• Certification: IEC60335-2-40:2024 and ISO20854; CE
• Dimensions: 96.67 mm × 66.28 mm × 27.5 mm

Compliance & integration The sensor supports straightforward integration into refrigeration equipment and monitoring systems with DC 5 V supply and compact footprint. Built‑in self‑compensation and reference channel reduce maintenance frequency and false alarms, making AM4207 suitable for continuous monitoring in demanding cold chain environments.

Ordering information Model: Cubic AM4207 Series. For integration support, certifications and custom configuration options, contact the supplier.