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Diffusive NDIR gas sensor - IR-SF6 series

• Fault diagnosis and false alarm prevention technology
• Temperature and pressure compensation technology
• Anti-condensation technology
• Life span is greater than 10 years

Model Number: IR-SF6 series
Data Sheet:

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Product Specification

1、Product Introduction

IR-SF6 series diffusive infrared sensor is a gas sensor based on the principle of single light source dual wavelengths using non-dispersive infrared detecting technology(NDIR). The sensor applies a high-end infrared light source and a detector, choosing gold-plated parts as light path return channel, which improve the measuring accuracy and stability. Meanwhile, the environmental suitability of the sensor is also enhanced by adding certain special mature technology.

The major applications of the sensor include electricity, petrochemical, food processing, semiconductor and other industries, which is suitable for leakage alarm, environmental protection, industrial safety and other occasions.

2、Product Features

• Fault diagnosis and false alarm prevention technology

• Temperature and pressure compensation technology

• Anti-condensation technology

• Life span is greater than 10 years

3、Technical Specification

General spec.：

Measuring principle	Single light source dual wavelengths non- dispersive infrared (NDIR)
Product dimension	66mm36mm29.5mm（LWH）
Product weight	36.5g
Warm-up time	＜2min
Sampling method	diffusion

Measuring spec.：

Linearity error	＜±2%FS
Response time(T₉₀)	＜40s
Repeatbility（relative to standrd deviation）	＜1%
minimum detection limit	1%FS
Resolution	0.1%FS
Long-term stability（zero）	≤±1%FS/ year
Long-term stability（span）	≤±2%FS/year
Temperature drift（zero）	≤±0.1%FS/℃
Temperature drift（span）	≤±0.2%FS/℃

Electrical characteristics：

Operating voltage	(3.3~6.5) VDC
Operating current	max 190mA(average 90mA);@5VDC
Average power	＜0.7W
Peak power	＜1W
Signal output method	UART TTL 、RS485
Singal output protocol	Modbus ASCII（standard） Modbus RTU（customized）

Environmental condition：

Temperature compensation range	(-10~40)℃
Working humidity	(0~95)%RH (non-condensing)
Storage temperature	(-20~60)℃
Environment pressure compensation	(80~110)kPa