Fixed CO Preprocessing Online Monitoring System
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Model: HNAG1000-CO
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Detection: CO
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Detection Principle: Electrochemical, infrared NDIR
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Detection range: 0-500ppm, 0-10000ppm, 0-5%Vol, 0-10%VOL
Product Description
High-Precision Fixed CO Preprocessing Online Monitoring System
The HNAG1000 Fixed CO Preprocessing Online Monitoring System is engineered for continuous, accurate detection of carbon monoxide (CO) concentration and leakage across challenging industrial settings. By integrating high-performance electrochemical and infrared NDIR sensors with advanced microcontroller technology, this system delivers rapid response speeds (T90 < 10s), exceptional stability, and high repeatability. Its flameproof, explosion-proof wiring ensures safe deployment in hazardous zones, providing direct compatibility with user computers, control alarms, PLCs, and DCS platforms.
Robust Stainless Steel Enclosure & Gas Sampling Process
Encased in an industrial-grade stainless steel cabinet, this online monitoring system withstands corrosive and demanding ambient conditions. The integrated sampling mechanism operates with high precision: sampled gas is first drawn through a high-efficiency filter to eliminate particulate dust and impurities. A specialized sampling pump then directs the sample through an adjustable flowmeter calibrated between 0.3 and 0.5 L/min, ensuring constant pressure and stabilized gas delivery to the internal detection chamber.
Technical Specifications of Fixed Carbon Monoxide Monitor
| Parameter | Technical Specification |
| Monitored Gas |
Carbon Monoxide (CO) |
| Sensor Principles |
Electrochemical, Infrared NDIR |
| Measurement Ranges |
0-500ppm, 0-10000ppm, 0-5%Vol, 0-10%VOL |
| Resolution |
1ppm, 0.01%VOL |
| Sampling Accuracy |
±3% F.S. |
| Response Time |
T90 < 10s |
| Standard Signal Output |
4-20mA (12-bit precision, 1km), RS485 (MODBUS RTU, 1km), Relays (220VAC 3A / 24VDC 3A) |
| Optional Signal Output |
Voltage (0.4-2V, 0-5V, 0-10V), Wireless (GPRS, 4G, WIFI, LORA, ZigBee) |
| Operating Conditions |
Temperature: -20 ～ 50℃; Humidity: 0-95%RH |
| Sampling Parameters |
Temperature:≤ 120℃; Max distance: 80m (Recommended ≤ 20m) |
| Power Supply |
220V AC |
Industrial Applications & Flange Installation
The system supports standard pipeline flange installations and wall-mounted setups, providing reliable safety monitoring in critical sectors including petroleum and petrochemical refineries, chemical processing plants, steel mills, boiler rooms, thermal power stations, underground utility tunnels, and industrial process control facilities.
Customized Gas Pretreatment Configurations
To accommodate extreme industrial environments, multiple tailored internal configurations are available:
Normal to Medium Temperatures: Systems equipped with electronic condensation units and timed peristaltic drainage pumps for negative-pressure pipelines and moisture extraction.
High-Temperature & Dusty Flue Gases (400-800°C): Configurations featuring vortex cooling coils, dual filtration, and automatic time-relay reverse-purging valves to prevent sampling clogging.
High Explosion-Proof Requirements: Systems built with stainless steel pipelines and pneumatic pumps driven by plant compressed air.
Multi-Point Centralized Monitoring: Integrated multi-channel enclosures capable of monitoring multiple sampling points simultaneously.
Frequently Asked Questions (FAQ)
Q: What is the typical lifespan of the CO sensor and consumables?
A: The carbon monoxide sensor has an operational service life of approximately 1 to 3 years depending on target gas exposure and ambient conditions. The internal filter element typically requires replacement every 3 months (indicated by internal chip color alteration), while the sampling pump is rated for approximately 1 year of continuous operation.
Q: How does the system handle multi-level alarm signaling?
A: Standard units come configured with two-level threshold alarms, with an optional three-level alarm structure. Alerts trigger on-site audio-visual sound and light beacons, remote controller indicators, passive relay switch closures for ventilation activation, and automated event notifications in connected computer control systems.
Q: What sampling distance can this preprocessing monitor support?
A: The system supports an extraction sampling distance of up to 80 meters, with an optimal recommended operating distance within 20 meters to maintain sample integrity and rapid response times.
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