Honeywell 2104B2081 Medium Range Transmitter

Product Overview

The Honeywell 2104B2081 is a Medium Range Transmitter from the Searchline Excel open-path infrared gas detection system, designed for hazardous industrial environments. It continuously monitors combustible gas clouds over distances of 40–120 meters, providing rapid and reliable detection. Its rugged stainless steel housing ensures long-term durability, while ATEX certification guarantees safe operation in classified hazardous zones. Moreover, the transmitter integrates seamlessly with existing control and safety systems, enabling efficient plant-wide monitoring.

Key Features & Benefits

• Wide-Area Coverage: Detects combustible gases over large open areas with fewer sensors, reducing installation complexity.

• High Reliability: ATEX-certified and corrosion-resistant stainless steel housing ensures safe operation in harsh environments.

• Advanced Optics: Patented optical design resists sunlight, welding arcs, flare stacks, and lightning interference.

• Environmental Compensation: Dual band-pass filter and heated optics minimize false alarms caused by fog, rain, snow, or ice.

• Rapid Response: Immediate detection of gas leaks enhances safety and prevents potential accidents.

• Reduced Maintenance: Durable design and partial beam obstruction tolerance decrease servicing frequency.

Technical Specifications

• Detection Range: 40–120 m (130–390 ft)

• Output Signal: 4–20 mA DC

• Power Supply: Nominal 24 VDC

• Operating Temperature: −40 °C to +85 °C

• Housing Material: 316 stainless steel, corrosion-resistant

• Ingress Protection: IP66 / IP67

• Dimensions: 211 × 353 × 433 mm

• Weight: 0.68 kg

• Certification: ATEX approved

Typical Applications

• Petrochemical processing plants monitoring open-path gas leaks

• Offshore oil and gas platforms ensuring operational safety

• Chemical manufacturing facilities requiring continuous hazard detection

• Power generation stations implementing preventive safety systems

• Large-scale hazardous area monitoring systems

FAQ

Q1: Can the transmitter operate in extremely cold or hot environments?
A1: Yes, it functions reliably between −40 °C and +85 °C, covering most industrial conditions.

Q2: How does the device prevent false alarms?
A2: It uses a dual band-pass filter, heated optics, and patented optical design to minimize environmental interferences.

Q3: Is installation compatible with existing safety systems?
A3: Absolutely, the module integrates with standard 4–20 mA control systems for seamless operation.

Q4: What is the maintenance frequency for this transmitter?
A4: Its robust design and partial beam obstruction tolerance significantly reduce maintenance requirements.