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Multiwave Process Photometers

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By ABB

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ABB’s Multiwave Process Photometers offer real-time infrared and ultraviolet absorption measurements for process gas and liquid streams. Designed for in-line use, these photometers deliver accurate, fast results for critical process control in chemical, refining, and environmental applications. Their robust design and low maintenance requirements make them ideal for demanding industrial conditions.

Fantastic Features

Real-time IR and UV process analysis.
Long-life light sources and sealed optics.
Compact, modular design for easy integration.
Automatic zero and span calibration.
Stable, drift-free optical performance.
Digital outputs for control integration.

Amazing Applications

Combustion air and flue gas monitoring.
Process gas quality assurance.
Liquid stream concentration control.
Refinery hydrocarbon analysis.
Environmental emission measurement.
Fuel blending and vapor control.

Multiwave Process Photometers for Real-Time Gas and Liquid Analysis

ABB’s Multiwave Process Photometers provide continuous, in-line monitoring of chemical processes using infrared and ultraviolet absorption techniques. For full product specifications, refer to the ABB Multiwave photometers page. With models like the PIR3502 (infrared) and PUV3402 (ultraviolet), these analyzers deliver real-time insights into gas and liquid compositions across a wide range of industries.

Infrared and Ultraviolet Measurement Technologies

The PIR3502 infrared photometer is designed for accurate measurement of gas concentrations, including hydrocarbons, water vapor, CO, and CO₂. The PUV3402 ultraviolet photometer is optimized for detecting NOx, SO₂, and aromatic hydrocarbons. Both systems use narrow-band interference filters and robust optical designs to ensure stable, long-term performance in demanding process environments.

For applications requiring multi-component gas analysis beyond photometric techniques, systems such as the AO2000 Continuous Gas Analyzer System can provide complementary measurement capabilities.

Flexible Installation and System Integration

These process photometers can be installed directly in pipelines or integrated into sampling systems with minimal maintenance requirements. Their modular design supports seamless integration into both new and existing installations, reducing overall system complexity.

For applications requiring compact, cost-effective gas analysis solutions, the EasyLine Gas Analyzers provide an alternative approach for standard monitoring requirements.

Fast Response for Critical Process Control

ABB’s Multiwave Process Photometers are particularly effective in applications where fast response time is essential, such as combustion control, emissions monitoring, and product quality assurance. Real-time data enables operators to respond quickly to process changes, improving efficiency and maintaining compliance.

Reliable Performance in Industrial Environments

Designed for long-term reliability, these photometers feature durable light sources, sealed optics, and automatic zero and span calibration. Their rugged construction ensures consistent performance in harsh industrial conditions while minimizing maintenance requirements.

From chemical production and flue gas analysis to fuel blending and process optimization, ABB’s Multiwave Process Photometers deliver dependable and accurate measurement across a wide range of applications.


Explore more solutions from the ABB analyzer product line to support process monitoring, emissions control, and industrial optimization.

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Selecting the right analytical solution depends on your process conditions and performance expectations. Provide your application details, product of interest, and any relevant operating parameters, and we’ll prepare a technically appropriate recommendation and quotation.
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