Honeywell 2108B2101N Infrared Combustible Gas Detector

Description

Honeywell 2108B2101N Infrared Combustible Gas Detector

Product Dimensions：

The Honeywell 2108B2101N is a specific part number within the Searchpoint Optima Plus line of gas detectors. It is a market-leading Point Infrared (IR) flammable gas detector designed to operate in harsh environments.

## Product Overview

The 2108B2101N is a Searchpoint Optima Plus hydrocarbon gas detector (certified to ATEX/IECEx standards). It uses dual-compensation, non-dispersive infrared (NDIR) technology to detect a wide range of hydrocarbon gases. This specific model is known for its “fail-to-safety” operation and its ability to function even when the optical lenses are partially obscured.

## Technical Specifications

## Key Advantages

• Exceptional Stability: The dual-beam optical design compensates for temperature changes and component aging, reducing “drift” and the need for frequent recalibration.

• High Resistance to Contamination: Unlike catalytic bead sensors, infrared sensors are immune to “poisoning” from silicones, sulfides, or halides.

• Rapid Response: One of the fastest $T_{90}$ response times on the market, allowing for immediate executive action during a leak.

• Reduced Maintenance: The “Dynamic Heating” feature prevents condensation on the optics, ensuring the device stays operational in humid or freezing conditions.

• Fail-to-Safety: Advanced internal diagnostics provide constant monitoring of the unit’s health.

## Product Applications

The 2108B2101N is designed for high-risk industrial environments where flammable gas leaks are a constant threat:

1. Oil & Gas: Offshore platforms, floating production storage and offloading (FPSO) vessels, and onshore refineries.

2. Chemical Plants: Processing areas where hydrocarbon solvents or gases are stored.

3. Power Generation: Gas turbine enclosures and fuel handling areas.

4. Wastewater Treatment: Monitoring for methane build-up in digesters or pump stations.

5. Pipeline Monitoring: Compressor stations and metering skids.

## Important Considerations (Precautions)

• Calibration Gas: Ensure you use the correct target gas for calibration. While IR sensors detect many hydrocarbons, the response factor (cross-sensitivity) varies between gases.

• Mounting Position: The unit should be mounted horizontally to prevent water or dust accumulation on the weather protection accessories.

• Inert Atmospheres: Unlike catalytic sensors, the Optima Plus does not require oxygen to operate, making it ideal for monitoring gases in nitrogen-purged environments.

• Handheld Interrogator: To change settings or perform calibration, you typically need a Honeywell SHC-1 Handheld Interrogator or a compatible junction box.

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