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Jinan Jiahong Technology Co., Ltd
Jinan Jiahong Technology Co., Ltd
Utilizing Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology, this sensor accurately measures gas concentration by detecting the attenuation of a specific wavelength laser beam after it passes through carbon monoxide gas. The concentration data is processed and analyzed by the main control unit, which then displays and outputs a standardized signal in real time. Simultaneously, the data is uploaded to a monitoring host via an RS485 interface. When the concentration exceeds the preset limit, the device immediately activates both audible and visual alarms and triggers a switch output, enabling multi-mode safety warnings.
Functional Features
①Advanced Detection Technology
Utilizes Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology to accurately determine gas concentration by measuring laser intensity attenuation after passing through the target gas. This method ensures high measurement precision and strong anti-interference capability.
②Comprehensive Monitoring and Alert Function
Performs real-time continuous monitoring of carbon monoxide concentration with a range of 0~1000 ppm and segmented high-precision measurement.
Automatically triggers audible and visual alarms along with switch output upon exceeding thresholds, supporting multi-mode safety warnings.
③Flexible Output and Communication
Supports RS485 digital signal output for seamless integration with underground monitoring systems.
Includes 1-channel switch output with normally closed contact control during alarms.
④ User-Oriented Design and Display
Features a 4-digit LED display for real-time concentration readout.
Allows infrared remote configuration for easy and intuitive operation.
⑤ High-Level Protection and Adaptability
Rated IP68 for durability and resistance to dust and pollutants.
Wide operating voltage range (DC 9~26 V) accommodates mine power grid fluctuations.
Intrinsically safe design, suitable for use in coal mine working faces, return air tunnels, emergency refuge chambers, and other scenarios.
②High Integration and Reliability
Integrates monitoring, display, alarm, and signal output functions into a single standalone device.
Designed for high reliability and sensitivity in underground coal mine environments.
Technical Parameters
① Structural Features
Dimensions: 170 mm × 270 mm
Weight: 1.9 kg
Protection Rating: IP68
② Power Supply Characteristics
Rated Voltage: DC 12 V
Operating Voltage Range: DC 9 V to 26 V
Maximum Operating Current: ≤160 mA
③ Performance Indicators
Carbon Monoxide Measurement:
Measuring Range: 0~1000 ppm
Measurement Accuracy:
0 ~ 100 ppm: ±4 ppm
100 ~ 500 ppm: ±5% of reading (relative)
500 ~ 1000 ppm: ±6% of reading (relative)
Communication Interface:
RS485 Interface:
Baud Rate: 1200 ~ 38,400 bps
Signal Peak Voltage: ≤3.3 V
Switching Output:
Channels: 1
Output Type: Normally closed (activated during alarm)
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