Fixed CO2 Gas Detector

Keywords：fixed CO₂ detector, carbon dioxide monitoring, real-time CO₂ detection
Category：CO2 Analysis and Detection

The Fixed CO₂ Gas Detector is a high‑precision safety instrument designed for continuous monitoring of carbon dioxide levels in industrial, commercial, and confined space environments. Using advanced infrared sensing technology, it provides accurate, real‑time detection of CO₂ concentrations with audible and visual alarms to ensure immediate warning in case of hazardous levels. The detector is permanently installed in critical areas such as breweries, food processing plants, laboratories, greenhouses, and storage facilities. Its rugged design, long‑term stability, and low maintenance requirements make it ideal for workplace safety, environmental monitoring, and compliance with health and safety regulations.

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Providing tailored design, development, production, and services for the complete CO₂ industry chain.

Product Details
Product Specifications

Product Overview

The Fixed CO₂ Gas Detector is a continuous online monitoring instrument designed for industrial and specialized environments. It provides real-time measurement of carbon dioxide concentrations and ensures high-precision, stable readings. Equipped with Non-Dispersive Infrared (NDIR) sensor technology and microcontroller-based signal processing, the device supports integration with alarm and control systems, remote monitoring, and data logging. It is especially suitable for hazardous environments and locations with strict safety requirements.

Working Principle

The detector uses NDIR technology to measure the absorption characteristics of CO₂ molecules. The sensor signal is processed by an onboard microcontroller, delivering accurate, fast-response measurements. The device supports 4-20 mA analog output and RS-485 digital output, enabling seamless integration with alarm panels and control systems.

Key Features

Modular Design: Plug-and-play smart sensor platform for easy installation and maintenance.
High Accuracy & Efficiency: Fast response time, precise measurements, multiple selectable ranges to suit diverse applications.
Multiple Output Options: Supports 4-20 mA analog and RS-485 digital outputs for integration with alarms and industrial control systems.
High Safety Standards: Corrosion-resistant and explosion-proof design suitable for hazardous industrial environments.
Superior Protection: IP66-rated enclosure for dust and water resistance, ensuring reliable long-term operation.

Applications

Industrial Production: CO₂ monitoring in petroleum, petrochemical, metallurgy, chemical, and other industrial environments.
Public Safety & Environmental Monitoring: Fire protection, environmental monitoring, gas distribution, and wastewater treatment facilities.
Research & Education: Gas monitoring and data collection in laboratories and research institutions.

Parameter	Specification or Description
Measured Gas	Carbon Dioxide (CO₂)
Detection Principle	Non-dispersive infrared technology (NDIR)
Sampling Method	Diffusion type or pipeline type
Range	0-5000 ppm, 0-10000 ppm, 0-10% VOL, 0-20% VOL, 5%-100% VOL
Resolution	10 ppm, 1% VOL
Accuracy	3% FS
Response Time	< 20 seconds
Signal Output	4-20 mA and RS485, 2 relay contacts
Power Supply	24 VDC
Explosion-proof Rating	EXDIICT6
Protection Rating	IP66
Operating Temperature	-20℃ ~ +50℃
Operating Humidity	0-95% RH (non-condensing)
Material	ADC12 aluminum alloy / 316 stainless steel
Standards	GB15322.1-2003, GB3836.1-2010, GB3836.2-2010, GB3836.4-2010
Electrical Interface	M20*1.5 internal thread, options: G3/4, G1/2, 1/2 NPT, 3/4 NPT
Weight	2 kg
Dimensions	195 mm x 178 mm x 90 mm (MAX)