Models - Emerson Rosemount 975 Series Quick Start Manual

August 2023
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Models

The Rosemount 975 Flame Detectors are electro-optical devices
designed to identify fire events, enabling alarm activation. The
detectors are intended for indoor or outdoor use and can be used
stand alone or connected to an alarm or automatic extinguishing
system.
The Rosemount 975 series comprises the following detectors:
Rosemount 975MR
The Rosemount 975MR Ultra Fast Multi-spectrum Triple Infrared
(IR3) Flame Detector provides superior, longest distance detection
of hydrocarbon fires at up to 300 ft (90 m), exceptional ultra-
fast detection in under 50 msec, and unparalleled reliability. The
Rosemount 975MR is based on proven IR3 technology, ensuring
highest sensitivity with best immunity to false alarms.
Rosemount 975HR
The Rosemount 975HR Multi-Spectrum IR Flame Detector provides
superior, longest distance detection of hydrogen (at up to 165 ft
[50 m]) and hydrocarbon (at up to 300 ft [90 m]) fires, exceptional
ultra-fast detection in under 50 msec, and unparalleled reliability. The
Rosemount 975HR is designed to deal with the challenges of invisible
fires based on proven triple IR (IR3) technology, ensuring highest
sensitivity with best immunity to false alarms.
Rosemount 975UF
The Rosemount 975UF Ultra Fast UV/IR Flame Detector can detect
fire in under 20 msec and features a unique dual sensor with
selectable UV and IR channels that can be used separately or
combined. The detector is designed to detect a range of fires, such
as hydrocarbon-based fuel and gas, hydroxyl, hydrogen, metal, and
inorganic.
Rosemount 975UR
The Rosemount 975UR Ultra Fast UV/IR Flame Detector can detect
fire in under 20 msec and features a unique dual sensor with
selectable UV and IR channels that can be used separately or
combined. The detector is designed to detect hydrocarbon-based fuel
and gas fires.
Table 1-1: Rosemount 975 Series general technical specifications
Spectral response
Quick Start Guide
Infrared and ultraviolet bands
Quick Start Guide
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