Family Owned & Operated Since 1971• Bakersfield, CA
SKU: 975MR
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.
Contact us for pricing on this product.
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.
The Rosemount 975MR Multi-spectrum Infrared Flame Detector # 975MR is manufactured by Rosemount. Valley Instrument Service is an authorized Rosemount dealer offering full sales support, NIST-traceable calibration, and expert technical assistance.
Our team can help with product selection, specs, pricing, and application support.
Contact Us or Call (661) 327-8681Multi-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.
Rosemount is configurator-heavy and quote-only — Valley Instrument verifies option compatibility, lead time, and pricing before confirming your order.
Multi-spectrum IR flame detector specifically designed to detect both hydrocarbon AND hydrogen flames — hydrogen flames are nearly invisible and emit primarily in the UV (poor for IR-only detectors), so most IR detectors miss them. The 975HR's specialized IR sensor mix catches hydrogen-flame radiation that the 975MR misses. Critical for hydrogen-production plants, refineries with hydrogen reformers, fuel-cell manufacturing, and any process where hydrogen is present alongside hydrocarbons. SIL 2 prior-use FMEDA.
Ultra-fast UV/IR flame detector — detects fire in under 20 milliseconds using a unique dual sensor with selectable UV and IR channels. The fastest detector in the 975 family — built for explosion-suppression and rapid-response fire-control loops where a 100 ms standard detector is too slow (munitions, propellant manufacturing, high-pressure hydrogen storage, fuel-mix piping). UV and IR channels can be used separately or combined for application-specific false-alarm rejection. SIL 2 prior-use FMEDA.
Dual-spectrum UV/IR flame detector — senses radiant energy in both the short-wave UV and short-wave IR portions of the spectrum simultaneously, providing high false-alarm immunity (welding, lightning, sunlight reflection) while detecting hydrocarbon-based fuel and gas fires. The workhorse 975 variant for general process / refining / petrochemical fire detection. SIL 2 prior-use FMEDA. Variable-area coverage from a single detector reduces installed sensor count vs. older single-spectrum detectors.
CO2L Triple IR (IR3) Flame Detector for Hydrocarbon Fires Where Exhaust Gases May Be Present Outputs Include Tri-Colour LED, 4-20mA with HART 7, 3 x SPST Relays - Fire Alarm, Fault & Auxiliary, Modbus Rs485. SIL 2