Refrigerant gas refrigerant gas sensor AM4215R-TM

NDIRfor leak detectionIP54

Overview
Cubic AM4215R-TM Series is an NDIR triple refrigerant gas sensor for the leak detection of R454A, R454C, and R455A refrigerants, specifically designed for the HVACR industry as a complete refrigerant detection system (RDS).


Leveraging advanced NDIR technology, the AM4215R-TM Series ensures excellent long-term stability and selective detection of refrigerant gases. The sensor offers detection across a wide range from 0 to 100% LFL with a 0.1% LFL resolution. Matrix calibration maintains measurement accuracy throughout the full operating temperature range. Its fast response enables timely leak identification.


Designed for reliability, the AM4215R-TM Series operates continuously in harsh environments from -40C to 95C, featuring IP54 protection and resistance to dust accumulation, oil and salt spray corrosion. An integrated automatic heating mechanism prevents condensation and frost accumulation, while enabling quick recovery after frost, ensuring stable performance in high-humidity or frequently cycling conditions.


The AM4215R-TM series offers dual relays mitigation functions, which includes LED alarm indicators and self-diagnosis functionality for intelligent safety management. Its compact, optimized design supports both integrated wiring-harness and non-harness configurations for easy installation in outdoor units, compressor compartments, air ducts, or other potential leak points. Certified to UL60335-2-40 (4th edition) and UL60335-2-89 standards, the AM4215R-TM Series is a reliable solution for HVAC&R applications, including air conditioning, residential and commercial heat pumps, industrial cooling, and cold chain systems.


Features

• NDIR (Non-dispersive Infrared) technology
• Triple refrigerant gas detection of R454A, R454C, and R455A
• Matrix calibration to ensure accuracy under full working temperature
• Fast response
• Automatic heating mechanism for anti-condensation and recovery from frost
• High temperature resistance supports continuous operation at 95
• IP54 protection level
• Salt spray corrosion resistance
• Long lifespan over 15 years
• UL 60335-2-40 & UL 60335-2-89 certified

Specifications

• Principle: Non-dispersive infrared (NDIR) technology
• Target: R454A,R454C,R455A
• Measurement range: 0~100%LFL
• Resolution: 0.1%LFL
• Accuracy: ±2.5%LFL25%LFL; ±10% of reading 25%~100%LFL
• Sampling time: 1s
• Response time: TDTLV≤30s25%LFL
• Alarm point: 15%LFLR454A&R454C&R455A (Default
• Communication output: RS485 relay LED indicator
• Preheating: 15 minutes
• Protection level: IP54
• Lifetime: >15 years
• Working conditions: -40~95; 10%~95%RH45 (non-condensing)
• Storage conditions: -40~85; 0~95%RH (non-condensing)
• Working pressure: 60~120kPa
• Condensation and frost: Anti-condensation, recovery from frost
• Power supply: 2030VDC (standard 24V); 1830VAC / 47~63Hz (standard 24V)
• Power consumption: 14VA
• Relay type: UL File Number E133481
• Relay load: 1A 30VDC / 0.3A 125VAC