Description
📌 Product Overview
The Honeywell 2108B2001N is a Searchpoint Optima Plus point infrared gas detector designed for the detection of flammable hydrocarbon gases and vapors in hazardous industrial environments. The 2108B2001N configuration is associated with the hydrocarbon version of the Searchpoint Optima Plus family for ATEX and IECEx hazardous-area applications.
The detector uses infrared absorption technology rather than catalytic sensing technology. This measurement method provides stable hydrocarbon gas detection and helps reduce the influence of catalytic poisons that can affect traditional catalytic bead sensors.
Searchpoint Optima Plus detectors are commonly installed in fixed gas detection systems used in oil and gas facilities, petrochemical plants, chemical processing areas, offshore platforms, and other industrial locations where early detection of combustible gas is required.
⚙️ Key Features
🔹 Point infrared hydrocarbon gas detection
🔹 Designed for fixed gas monitoring applications
🔹 Suitable for hazardous industrial environments
🔹 4–20 mA analog output
🔹 Autosensing sink or source output configuration
🔹 Optional HART communication on compatible versions
🔹 Optional Modbus RS485 communication through compatible system equipment
🔹 Fast response to hydrocarbon gas concentrations
🔹 Self-compensating optical system
🔹 Dynamic heating control for improved resistance to condensation
🔹 Contaminated optics warning and diagnostic functions
🔹 No moving parts in the optical detection system
🔹 Designed for long-term industrial service
📋 Product Datasheet
🏷️ Brand: Honeywell
🔢 Model: 2108B2001N
📚 Series: Searchpoint Optima Plus
🧩 Product Name: Point Infrared Gas Detector
🔥 Detection Type: Flammable Hydrocarbon Gas Detection
📏 Measuring Range: 0–100% LEL
⚡ Power Supply: 18–32 VDC
🔋 Nominal Supply Voltage: 24 VDC
⚙️ Maximum Power Consumption: Less than 4.5 W
📡 Analog Output: 4–20 mA
🔄 Output Type: Autosensing Sink or Source
💻 Digital Communication: Optional HART over 4–20 mA on compatible versions
🔌 Additional Digital Communication: Modbus RS485 via compatible interface equipment
⏱️ Response Time T50: Less than 3 seconds for methane
⏱️ Response Time T90: Less than 4 seconds for methane
🌡️ Operating Temperature: -40°C to +65°C
💧 Ingress Protection: IP66 / IP67
🛠️ Housing Material: 316 Stainless Steel
⚖️ Approximate Weight: 1.6 kg
📊 Hydrocarbon Accuracy: Baseline less than ±1% FSD; 50% FSD less than ±2% FSD
📈 Repeatability: Less than ±2% FSD at 50% FSD
📐 Linearity: Less than 5% FSD
🧠 Diagnostics: Integrated diagnostics and contaminated optics monitoring
🏭 Typical Application: Fixed industrial flammable gas detection
The Searchpoint Optima Plus product family is designed for hydrocarbon detection and supports a 0–100% LEL measuring range. Honeywell specifies a supply range of 18–32 VDC, IP66/IP67 environmental protection, 316 stainless-steel construction, and a typical weight of approximately 1.6 kg.
🏭 Typical Applications
🛢️ Oil and Gas Facilities
Used for fixed monitoring of potential hydrocarbon gas releases around processing equipment, pipelines, compressors, and storage areas.
⚗️ Petrochemical Plants
Suitable for detecting flammable hydrocarbon vapors in process units and hazardous production zones.
🏭 Chemical Processing
Can be integrated into fixed gas detection systems where combustible gas monitoring is required.
🚢 Offshore Platforms
The rugged industrial construction and hazardous-area approvals make the Searchpoint Optima Plus family suitable for demanding offshore environments.
⚙️ Industrial Manufacturing
Can be installed near equipment handling combustible gases, fuels, solvents, and other hydrocarbon-based materials.
🔧 Installation and Maintenance Notes
Before installation, verify that the exact 2108B2001N configuration matches the target gas, calibration range, hazardous-area classification, and existing control system.
🔧 Confirm that the supply voltage is within the specified 18–32 VDC range.
🔧 Install the detector in a location appropriate for the expected gas density and potential leak source.
🔧 Avoid placing the sensing path where dirt, oil, paint, or other contamination may continuously obstruct the optics.
🔧 Verify the 4–20 mA signal configuration before connecting the detector to a PLC, DCS, gas controller, or safety system.
🔧 Confirm hazardous-area approvals and installation requirements before commissioning.
🔧 Perform functional testing and calibration checks according to the applicable site procedure and manufacturer documentation.
🔧 Inspect the optical area regularly for contamination or environmental damage.
⚠️ Gas detection equipment used in hazardous or safety-related applications should be installed, tested, and maintained by qualified personnel according to the applicable plant safety procedures.
❓ FAQ
Q: What is the Honeywell 2108B2001N?
A: It is a Searchpoint Optima Plus point infrared gas detector designed for detecting flammable hydrocarbon gases and vapors.
Q: What gas does it detect?
A: The 2108B2001N configuration is associated with hydrocarbon gas detection. The exact target gas and calibration should always be verified from the detector label and ordering configuration.
Q: What is the measuring range?
A: The Searchpoint Optima Plus family supports a typical measuring range of 0–100% LEL for hydrocarbon gas detection.
Q: What power supply does it require?
A: The detector operates from an 18–32 VDC power supply, with 24 VDC as the nominal supply voltage.
Q: What output signal does it provide?
A: The standard signal is a 4–20 mA analog output with autosensing sink or source capability.
Q: Does it support HART communication?
A: Optional HART communication is available on compatible Searchpoint Optima Plus versions.
Q: How fast is the response time?
A: Honeywell specifies approximately T50 below 3 seconds and T90 below 4 seconds for methane.
Q: Is the detector suitable for outdoor industrial environments?
A: The Searchpoint Optima Plus family has IP66/IP67 environmental protection and is designed for demanding industrial applications, subject to correct installation and certification requirements.
Q: Does infrared sensing have advantages over catalytic sensing?
A: Infrared gas detection is not affected by catalytic poisons and can provide stable hydrocarbon gas measurement without relying on a catalytic bead sensing element.
Q: What should be checked before purchasing a replacement?
A: Verify the complete model number, target gas, calibration range, hazardous-area approval, output configuration, communication option, accessories, and physical condition.
🔄 Other Honeywell Gas Detection Models
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- Honeywell Searchpoint Optima Plus 2108B2001N
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- Honeywell Searchpoint Optima Z
- Honeywell Searchline Excel
- Honeywell Searchline Excel Plus
- Honeywell Sensepoint XCD
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- Honeywell XNX Universal Transmitter
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