Rosemount 965 Flame Detector

The Rosemount™ 965 Flame Detector is designed for fast, reliable hydrocarbon fire detection in industrial, commercial, and critical infrastructure environments. Using Emerson’s QuadSense™ triple infrared technology, the Rosemount 965 Flame Detector detects hydrocarbon flames up to 150 ft. / 45 m while helping reduce false alarms from common non-fire sources.

With a typical response time of less than 5 seconds, five selectable sensitivity levels, HART® communication, RS-485 Modbus® compatibility, analog output, relay outputs, and infrared built-in test functionality, the Rosemount 965 is built for dependable flame detection in applications where early warning and system reliability are essential.

The detector is factory-calibrated for life and has a 150,000-hour lifespan, helping reduce routine maintenance while supporting long-term uptime. Its low-copper aluminum housing, wide operating temperature range, and strong environmental ratings make it suitable for demanding Canadian industrial environments.

Westech Industrial supplies the Rosemount 965 Flame Detector in British Columbia, Alberta, and Saskatchewan, supporting customers with product selection, fire and gas detection expertise, service capabilities, and custom fabrication solutions for integrated safety systems.

Rosemount 965 Flame Detector

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Description

Fast Hydrocarbon Flame Detection

The Rosemount 965 Flame Detector can detect hydrocarbon fires up to 150 ft. / 45 m, depending on the fuel source, fire size, sensitivity setting, and site conditions.

QuadSense™ Triple Infrared Technology

QuadSense™ IR3 technology provides high sensitivity to hydrocarbon flame signatures while helping improve immunity to false alarms.

Factory-Calibrated for Life

The detector is factory-calibrated for life, reducing maintenance requirements and helping support reliable long-term operation.

150,000-Hour Lifespan

With a long operating lifespan, the Rosemount 965 helps maximize uptime in critical safety monitoring applications.

Five Selectable Sensitivity Levels

The detector can be configured for different monitoring distances, with selectable sensitivity ranges from 9.8 ft. / 3 m to 147.6 ft. / 45 m.

Built-In Test Functionality

Infrared built-in test technology continuously verifies the integrity of the detector’s optics and electronics, helping confirm the device remains in proper working condition.

Flexible Communication and Output Options

The Rosemount 965 supports 0–20 mA analog output, HART® communication, RS-485 Modbus® compatible communication, and relay outputs for integration into new or existing fire and gas systems.

Designed for Demanding Environments

With an operating temperature range of -40 to +158 °F / -40 to +70 °C and enclosure ratings including IP66, IP68, EN60529, NEMA 250 6P, and UL50E Type 4X, the detector is suitable for challenging outdoor and industrial environments.

Performance Certified

The Rosemount 965 is certified to performance standards including EN54-10, ULC/ORD-C386-15, and FM3260.

Applications

The Rosemount 965 Flame Detector is suitable for a wide range of industrial, commercial, and infrastructure applications where hydrocarbon flame detection is required.

Common applications include oil and gas onshore and offshore installations, pipelines, chemical and petrochemical plants, storage tank farms, power generation facilities, hazardous materials storage areas, fertilizer plants, waste management facilities, warehouses, manufacturing facilities, food processing plants, transportation terminals, aircraft hangars, parking structures, hospitals, data centers, archives, public buildings, cable tunnels, and historical or cultural sites.

For hazardous area locations, explosion-proof certified models should be used where required by the application and site classification.

Documents

Rosemount-965-flame-detector_Datasheet_en-May2026_Westech.pdf

Manufacturer info

Emerson’s tireless pursuit of innovation drives the Rosemount™ portfolio of superior quality measurement and analytical technologies to provide customers with insight across all touchpoints needed to operate efficiently, safely, and with peace of mind. https://www.emerson.com

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PRODUCT FAQ's

What is the Rosemount 965 Flame Detector used for?
The Rosemount 965 Flame Detector is used to detect hydrocarbon flames in industrial, commercial, and critical infrastructure environments. It is commonly used in oil and gas facilities, chemical plants, storage tank farms, power generation sites, manufacturing facilities, transportation hubs, warehouses, data centers, parking structures, aircraft hangars, hospitals, and public buildings.
How far can the Rosemount 965 detect a hydrocarbon fire?
The Rosemount 965 can detect certain hydrocarbon fires up to 150 ft. / 45 m, depending on the fuel type, fire size, sensitivity setting, and environmental conditions. It includes five selectable sensitivity levels, allowing the detector to be configured for different monitoring distances.
What technology does the Rosemount 965 use?
The Rosemount 965 uses QuadSense™ triple infrared technology. This multi-spectrum infrared approach helps the detector identify hydrocarbon flame signatures while reducing the likelihood of false alarms caused by non-fire sources.
Does the Rosemount 965 require calibration?
The Rosemount 965 is factory-calibrated for life, which helps reduce ongoing calibration requirements. It also includes infrared built-in test functionality to continuously verify the integrity of the detector’s optics and electronics.
What output options are available with the Rosemount 965?
The Rosemount 965 includes 0–20 mA analog output, HART® communication, RS-485 Modbus® compatible communication, and relay outputs. These options make it easier to integrate the detector into new or existing fire and gas detection systems.
Can the Rosemount 965 be used outdoors?
Yes. The Rosemount 965 is designed for demanding environments, with an operating temperature range of -40 to +158 °F / -40 to +70 °C and enclosure ratings including IP66, IP68, EN60529, NEMA 250 6P, and UL50E Type 4X.
Where is the Rosemount 965 Flame Detector available through Westech Industrial?
Westech Industrial supplies the Rosemount 965 Flame Detector in British Columbia, Alberta, and Saskatchewan. Our team can help customers determine if this detector is suitable for their specific flame detection application.
Does Westech Industrial provide service support for Rosemount flame detectors?
Yes. Westech Industrial provides fire and gas detection support, including product selection, application guidance, troubleshooting assistance, and service capabilities. Our team can help customers maintain reliable safety monitoring systems and support proper integration with existing plant infrastructure.
Can Westech Industrial help with custom fabrication for fire and gas detection systems?
Yes. Westech Industrial can support custom fabrication requirements for fire and gas detection projects, including panels, assemblies, shelters, and integrated solutions. This is especially helpful for customers who need flame detectors, gas detection equipment, horns, lights, control panels, or other safety system components packaged into a site-specific solution.