APMA-380 Carbon Monoxide (CO) Ambient Air Quality Monitor

The APMA-380 is a high-performance, continuous carbon monoxide (CO) analyzer engineered for demanding ambient air quality monitoring and industrial process applications. By integrating HORIBA’s signature cross-flow modulation NDIR technology, the system delivers exceptional long-term stability and trace-level sensitivity without the traditional drift associated with infrared detection.

Designed for seamless integration into national monitoring networks (AAQMS) and industrial perimeter systems, the APMA-380 combines laboratory-grade accuracy with a robust, modular architecture. This ensures maximum uptime and simplified maintenance for environmental engineers and plant managers monitoring CO concentrations in urban, industrial, or research environments.

Key Benefits

• Drift-Free Reliability: The unique cross-modulation principle eliminates zero-point fluctuation, significantly reducing the frequency of manual calibrations and the need for zero-gas cylinders.

• Superior Sensitivity: Capable of measuring trace CO levels with a minimum range of 0–5 ppm and a lower detection limit of <0.02 ppm, meeting the strictest international air quality standards.

• Low Cost of Ownership: With a 15% reduction in power consumption compared to previous generations and long-life internal components, the APMA-380 minimizes operational expenses and environmental impact.

• Intuitive Field Operation: A durable 7-inch color touchscreen provides real-time trend graphing and instant access to diagnostic data, simplifying on-site management.

• Regulatory Readiness: Built to comply with European standards (EN 14626) and global requirements, ensuring data defensibility for EHS compliance and regulatory reporting.

Technical Overview

Advanced Measurement Principle

The APMA-380 utilizes Cross-Flow Modulation Non-Dispersive Infrared (NDIR) absorption. Unlike conventional NDIR systems, this analyzer continuously modulates the sample and reference gas streams. This technique effectively cancels out optical interference and electronic drift, providing a stable baseline even in fluctuating ambient conditions. An integrated interference compensation detector further ensures that co-existing gases and moisture do not compromise measurement integrity.

Modular & Intelligent Design

The system features a modular "plug-and-play" internal structure, allowing for rapid field servicing and component replacement without extensive downtime. It includes an internal sampling pump and high-efficiency particulate filters accessible via the front panel.

Connectivity & Data Management

Equipped for the modern industrial "Internet of Things" (IIoT), the APMA-380 supports:

• Dual Ethernet Ports: For Modbus TCP communication and remote browser-based operation.

• Digital & Analog I/O: Configurable outputs (4-20mA, RS-232C) for seamless integration into existing SCADA or Data Acquisition Systems (DAS).

• USB Port: For easy data extraction and local firmware updates.

Typical Use Cases

• Urban Air Quality Networks: Continuous monitoring of CO in metropolitan areas to track traffic-related emissions and public health indicators.

• Industrial Perimeter Monitoring: Tracking fugitive emissions and ensuring safety around steel mills, power plants, and chemical manufacturing facilities.

• Research & Laboratory Studies: High-precision CO analysis for atmospheric research, catalyst efficiency testing, and fuel cell gas impurity monitoring.

• Cleanroom & Indoor Air Quality: Monitoring carbon monoxide levels in sensitive manufacturing environments or enclosed parking facilities for occupational safety.

Why Choose the APMA-380?

In a market crowded with standard NDIR sensors, the APMA-380 distinguishes itself through technical robustness. While other analyzers require frequent zeroing to combat drift, the cross-modulation technology ensures that your data remains accurate between service intervals. Its compact, lightweight design (approx. 16 kg) allows for easy installation in stationary racks or mobile monitoring vans, providing a versatile solution that grows with your monitoring requirements.