AM4205H-LC-R454A A2L Refrigerant Leak Detection Sensor

Description

AM4205H-LC-R454A A2L Refrigerant Leak Detection Sensor Specifications
Detecting principle	NDIR (non-dispersive infrared) technology
Measurement gas	R454A
Measurement range	0~50% LFL (Extendable up to 100% LFL)
Accuracy	±2.5% LFL (@15%~25%LFL,-30~60℃)
Working temperature	-30～60℃
Dimensions	76.8 59.2 19 (mm)
Communication	UART_TTL (3.3V), 0.8-4V Analog, 4~20mA (customized)
Lifetime	>15years, fault alarm before EOL will report
Certificate Conformity	CE, EMC, RoHS, Reach Certificate Available Certified IEC 60079-1, UL 60335-2-40 4th.

Technology Comparison
Key Features	NDIR	Metal-Oxide-Semiconductor	Thermal Conductivity	Comparison
Selectivity	Excellent	Poor	Fair	NDIR has excellent selectivity MOS easily is poisoned and impacted by interference gas
Accuracy	Excellent	Fair	Fair	NDIR Matrix calibration to ensure accuracy MOS and TC sensitive to temperature and humidity change
Response	Excellent	Fair	Poor	NDIR has a fast response MOS slow recovery rate, extended preheating time
Temperature and Humidity Impact	No Impact	Accuracy Easily Influenced	Accuracy Easily Influenced	TC easily impacted by temperature and humidity
Life time	Excellent	Poor	Fair	NDIR long-term stability, no false alarms MOS short life time, possible for false alarms TC has relatively longer life time than MOS, but still shorter than NDIR
UL60335 compliance	Fully Compliant	Not Fully Compliant	Not Fully Compliant	Cubic NDIR sensor could fully comply with UL60335 & EN60079 Neither MOS or TC is comply with UL60335-2-40 Annex LL