Rosemount 975MR Multi-spectrum Infrared Flame Detector

Rosemount1 configuration

Configure Your Rosemount 975MR Multi-Spectrum Infrared Flame Detector

Multi-spectrum infrared flame detector for hydrocarbon and gas fires. Three IR sensors at different wavelengths analyze flame spectral signature — distinguishes real flames from blackbody radiation, lightning, and welding arcs. Long detection range (up to 215 ft for n-heptane), Modbus + HART output, hazardous-area certified.

Required Specifications

3 of 3 selected

Output Configuration*

Housing*

Product Certification*

Maximum Ambient Temperature

Tilt Mount

Rain Cover

Rosemount 975MR Multi-Spectrum Infrared Flame Detector Part Number

975MR4U6SA1

Configured list price:$6,145.82(estimate based on May 2026 Rosemount list; quote may reflect distributor pricing)

Configuration Summary — Rosemount 975MR Multi-Spectrum Infrared Flame Detector

Base: $5,898.71

Output Configuration:: 4UUniversal Wiring
Housing:: 6SStainless steel housing with two 3/4"-14 NPT conduits+$247.11
Product Certification:: A1ATEX and IECEx Flameproof

Rosemount is configurator-heavy and quote-only — Valley Instrument verifies option compatibility, lead time, and pricing before confirming your order.

Pre-configured Options(1)

Rosemount

975MR Multi-spectrum Infrared Flame Detector

Multi-spectrum IR flame detector with QuadSense IR3 technology — analyzes the multi-spectral signals of hydrocarbon gas or liquid fires using four separate IR sensors. Detects a 1 ft² (0.1 m²) gasoline pan fire at 300 ft (90 m) — among the longest detection ranges in the 975 family. Best for outdoor large-area coverage (LNG terminals, petrochemical units, offshore platforms) where a single detector replaces multiple shorter-range UV/IR detectors. SIL 2 prior-use FMEDA.

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