AM4203H NDIR High-temperature Resistant Refrigerant Leak Sensor
Gas Sensor Modules

AM4203H

NDIR High-temperature Resistant Refrigerant Leak Sensor

Model
AM4203H
Category
Gas Detectors & Alarms › Gas Sensor Modules

Parameters: R32, R454A, R454B, R454C, R290, R1234ze, R1234yf

IndustriesBuilding & HVAC
Measurement PrincipleNDIR
Request a QuoteTechnical InquiryCatalog (PDF)

Overview

AM4203H is a high-temperature NDIR refrigerant sensor for fan coils, gas furnaces and heat pumps, covering multiple A2L and A3 gases up to 100% LFL, tolerating 95℃, with auto-baseline calibration, built-in relay mitigation, a 15-year life and UL 60335-2-40 Annex LL / UL 60335-2-89 compliance.

Key Features

  • Multiple A2L and A3 gases available( R32, R454A, R454B, R454C, R290, R1234ze, R1234yf)
  • 0-100% LFL measurement range for refrigerant gases
  • Excellent accuracy over full measurement range under matrix calibration
  • High-temperature tolerant to 95℃
  • Advanced auto baseline calibration mechanism, no field calibration required
  • Integrated mitigation function
  • Long lifespan of 15 years
  • IEC 60335-2-40 & UL 60335-2-40 certified
  • UL 60335-2-89 ed.2 Annex 101.DVP compliant

Measured Parameters

ParameterMeasuring Range
R320~100 %LFL
R454ATo be confirmed
R454BTo be confirmed
R454CTo be confirmed
R290To be confirmed
R1234zeTo be confirmed
R1234yfTo be confirmed

Specifications

PrincipleDual-beam NDIR
Measurement Range0~100%LFL
Accuracy2.5% LFL up to 25%LFL; ±5% LFL or 10% indication above 25%LFL
Response TimeT63≤30s
Working Condition-30~95℃; 0~95%RH (non-condensing)
Storage Condition-40~70℃; 0~95%RH (non-condensing)
Working Pressure80~120kPa
Protection LevelIP54
CommunicationRS485,MODBUS
Power Supply12~36VDC/18~36VAC
Lifetime15 years

Applications

  • Refrigerant leakage detection
  • Fan coils
  • Gas furnaces
  • Heat pumps

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