SJH-R32

A2L Refrigerant Gas Sensor (R32)

Model: SJH-R32
Category: Gas Detectors & Alarms › Gas Sensor Modules

Parameters: R32

IndustriesBuilding & HVAC

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Overview

This NDIR refrigerant sensor targets A2L blends such as R32, R454A/B/C and R1234yf, and A3 R290, measuring up to 100% LFL with matrix calibration from -40 to 70℃. Factory calibrated in a standard 4-series metal body, it supports alarms or shut-down in refrigeration, automotive and commercial air conditioning and heat pumps.

Key Features

Dual Beam NDIR Technology
Measurement range up to 0~100% LFL
Matrix calibration to ensure high accuracy over full temperature -40~70℃
Linearization and factory calibration for accurate digital output
Standard industrial 4 series size ￠D20mm x H19mm, easily integrated.
Metal body part, anti-corrosion, can work in tough working environment.
Build-in/Embedded temperature and humility compensation
Fast response
Long lifetime

Measured Parameters

Parameter	Measuring Range
R32	0~50 %LFL (0~7.2 %Vol)

Specifications

Accuracy	0~3.6%vol. (0~25% LFL): ±0.54% vol. (3.75%LFL) / 3.6%~7.2%vol (25% LFL~50%LFL) : ±15% of reading
Principle	NDIR
Measurement Range	0~7.2% vol (0~50%LFL)
Resolution	0.01% vol
Response Time	＜25s
Output Type	UART_TTL (3.3V)/ Analog 0.4~2.0V
Working Environment	-40～70℃; 0～95%RH (non-condensing)
Storage Environment	-40～85℃; 0～95%RH (non-condensing)
Power Voltage	3.3～6.0VDC
Average Current	55～60mA

Applications

Refrigerant leakage detection
Commercial, transport and industrial refrigeration
Automotive and commercial air conditioning
Heat pumps

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