2108B2001N Honeywell Searchpoint Optima Plus

Product Description (Detailed Explanation)

The Searchpoint Optima Plus is a smart, infrared point gas detector designed to provide continuous monitoring of combustible hydrocarbon gases. Unlike traditional catalytic bead sensors, the 2108B2001N uses a sophisticated “dual-path” optical infrared measurement system. This design utilizes a “compensated” optical bench that automatically accounts for component aging, dust buildup, and changes in temperature or humidity.

The unit is constructed from 316 Stainless Steel, making it immune to the corrosive effects of salt spray and harsh industrial chemicals. It provides a standard 4-20mA analog output and is compatible with HART communications for remote diagnostics and calibration.

Product Parameters (Technical Specifications)

Product Advantages (Key Benefits)

• Immunity to Poisoning: Since it uses optical IR technology, the sensor cannot be “poisoned” by silicones, sulfides, or high concentrations of gas that typically destroy catalytic sensors.

• Fail-to-Safety Operation: The internal diagnostics constantly monitor the optical path. If the beam is obscured or a hardware fault occurs, a specific fault signal is sent to the controller.

• Minimal Maintenance: The compensated optical design eliminates the need for frequent recalibration. Many units operate for years with only periodic functional “bump” tests.

• Oxygen Independent: The sensor functions perfectly in inert atmospheres (zero oxygen), which is critical for monitoring storage tanks or nitrogen-purged areas.

• Fast Response: One of the fastest response times in the industry, allowing for immediate activation of emergency shutdown (ESD) systems.

Precautions (Important Notes)

• Optical Path Obstruction: While the device is robust, the weather protection (dust filter) must be kept clear of heavy mud or ice to ensure gas can reach the sensing chamber.

• Mounting Orientation: The unit should ideally be mounted horizontally to prevent moisture or dust from settling directly on the optical windows.

• Bypass During Maintenance: Always inhibit the alarm loop on the control panel before performing gas tests to prevent accidental activation of fire suppression systems.

• Initial Warm-up: Upon power-up, the device requires a brief warm-up period (typically < 1 minute) before the output signal stabilizes and the sensor is ready for operation.

Product Applications (Typical Use Cases)

• Offshore Oil & Gas Platforms: Monitoring for gas leaks in highly corrosive marine environments.

• FPSO Vessels: Critical safety monitoring in floating production, storage, and offloading units.

• Refineries & Chemical Plants: Detecting combustible leaks in processing areas and pump rows.

• Gas Turbines: High-temperature monitoring of enclosure areas for fuel leaks.

• LNG/LPG Terminals: Safety monitoring in loading/unloading zones and storage tank farms.

• Wastewater Treatment: Monitoring for methane buildup in digestion and processing areas.