Split Nitrogen Dioxide Gas Detector Electrochemical Flue Gas Monitoring
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Model: HNAG1000
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Detection Gas: Nitrogen Dioxide ($NO_2$)
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Detection Principle: Electrochemical
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Detection Range: 0-1ppm (Atmospheric monitoring), 0-20ppm / 0-150ppm, 0-2000ppm, 0-2000ppm / 0-3000ppm
Previous: Split Type Carbon Monoxide Gas Detector
Product Description
Overview of the Split Nitrogen Dioxide Gas Detector
Advanced Electrochemical Sensing Technology
Equipped with an imported electrochemical sensor and high-performance microcontroller, the detector ensures rapid response speeds, exceptional stability, and low zero drift. It effectively measures trace amounts in atmospheric monitoring as well as higher concentrations in heavy industrial flue gas applications.
Core Advantages & Professional Configuration
Designed for seamless integration into industrial automation networks, the system includes dual simultaneous signal outputs and comprehensive safety certifications.
•Modular Plug-and-Play Probe: Allows individual component replacement without scrapping the entire unit, significantly reducing long-term maintenance costs.
•Explosion-Proof & Rugged Housing: Built with a die-cast aluminum enclosure providing IP66 protection against water splashes and rain, meeting Ex d IIC T6 explosion-proof standards.
•Multiple Output Options: Features standard 4-20mA current output, RS485 digital communication using the MODBUS RTU protocol, and relay switching outputs to directly link with ventilation fans or solenoid valves.
Main Functions & Technical Specification
•High-Definition Color Display: A 2.5-inch TFT screen clearly presents real-time gas concentration, environmental temperature, and humidity.
•Infrared Remote Control: Enables parameter calibration and alarm adjustments without opening the housing cover in hazardous locations.
•Comprehensive Alarms: Supports on-site sound and light alarms alongside remote software monitoring capabilities.
Installation Instructions
To ensure optimal performance and rapid response times, follow these professional installation guidelines:
•Location: Install the detector within one meter of potential gas leakage points, positioned according to the specific gravity of the target gas.
•Orientation: Mount the probe facing downwards, keeping the sensor surface vertical to the ground. Ensure the installation height is greater than 30 cm from the ground to prevent water splashing.
•Wiring: Use a three-core shielded cable for 4-20mA connections or a four-core cable for RS485 communication, ensuring the shielding layer is properly grounded.
Application Scenarios
This reliable gas monitoring solution is widely deployed across various heavy industries and municipal facilities, including:
•Chemical plants and petrochemical refineries
•Thermal power plants and steel manufacturing
•Smelting plants and boiler rooms
•Environmental protection bureaus and atmospheric monitoring stations
Frequently Asked Questions (FAQ)
1. What is the maximum transmission distance for the 4-20mA and RS485 signals?
The standard transmission distance for both 4-20mA current signals and RS485 digital communication reaches up to 1 kilometer using properly shielded cables.
Can the detector be integrated into an existing PLC or DCS system?
Yes, the unit is fully compatible with various control alarms, PLCs, DCS systems, and DDC systems via its standard 4-20mA and RS485 MODBUS outputs.
2. How is calibration performed in hazardous areas?
Calibration can be easily executed safely using the standard infrared remote control, which allows operators to adjust settings without opening the explosion-proof enclosure cover.
3. Is the detector suitable for outdoor installation?
Yes, the unit features an IP66 enclosure rating and supports external rain shields, making it fully weather-resistant for outdoor industrial applications.
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