Honeywell Searchline Excel Cross Direct Infrared Open Circuit Gas Detector

Honeywell Searchline Excel Cross Direct Infrared Open Circuit Gas Detector

Product Overview

Searchline Excel Cross Direct is developed based on mature open circuit design, specifically designed to meet the monitoring needs inside HVAC ducts and turbine casings. It is a reliable infrared open circuit gas detector suitable for ducts. It can provide the highest response speed with a low alarm set point over a wide temperature range, complementing other system gas protection devices such as toxic gas detection, and providing fast and effective protection for gas entering ventilation ducts.

Application scenarios and core advantages

Application scenarios: including control rooms, personal shelters, turbine casings, etc.

Core advantages:

Fast response speed, able to provide early warning; High sensitivity, allowing for setting low alarm points.

The design that does not require alignment makes installation simple; Strong tolerance to pipeline bending and vibration, ensuring continuous operation of the system.

Built in functional gas testing device for easy system inspection; Anti pollution optical components reduce unplanned maintenance needs.

Not affected by catalytic toxins, it can work in an inert environment.

Technical specifications

Project/Details

Detectable gas calibration: methane (a gas mixture with methane as the main component (>70%) and the rest as C ₂ - C ₆ hydrocarbons)*

Detection range: 0-100% LEL

Minimum alarm threshold: 20% LEL (pipeline width>0.5 to 2.5m); 10% LEL (pipeline width>2.5 to 5m)

Response speed: T90<1 second

Output signal: Over range: 21mA; Warning: 3mA; Beam blocking: 2.5mA; Suppression: 2mA; Fault: 0mA; RS485 serial link

Digital output: Modbus RS485 multipoint (using DX100 (M) or XNX universal transmitter with Modbus option)

Working temperature: Environmental temperature: -40 ° C to+50 ° C (-40 ° F to 122 ° F); The maximum internal temperature of the pipeline can reach 60 ° C (140 ° F), but the external ambient temperature of the transmitter and receiver units must be within the working range; For high-temperature applications, please contact Honeywell Analytics

Working humidity: 0-99% (no condensation)

Work pressure: 91.5-105.5 kPa (without compensation)

Repeatability: 5.0% LEL (pipeline width<1 meter); 2.5% LEL (pipeline width>1 meter)

Preheating time:<1 hour (completely stable)

Power supply equipment: 18 to 32V DC; Heating reflector: 18 to 28V DC

Power consumption device: maximum 13W; heating reflector: rated as 6W at 24VDC

Shell material: 316 stainless steel

IP rating: IP66 and IP67

Weight: transceiver 13kg; reflector plate: 5kg (pipe width>0.5m to 2.5m), 10kg (pipe width>2.5 to 5.0m)

EMC standard: EN50270

Safety certification: ATEX, IECEx, UL and other certifications, specific certification information may vary depending on the components such as transmitter, receiver, heating plate, etc

Communication and installation related

Communication function: Can be combined with XNX universal transmitter kit, standard equipped with local HART ®  Ports and HART via 4-20mA ®， Can be accessed through the XNX user interface or compatible HART ®  Configure with handheld interrogator; In permitted applications, the SHC-1 handheld interrogator and SHC-1 protective device module can be used for invasive connections. The multi-point Modbus function can save installation and wiring costs, and the bidirectional digital communication protocol allows configuration, warning, and fault diagnosis information to be transmitted back to the control room, reducing maintenance costs.

Installation composition: The path range is 0.5m-5m, mainly including heated retroreflector, installation plate, installation unit, transmitter, receiver, conduit, junction box, etc.