Emerson Rosemount 975 Series, Reference Manual

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7 Specifications
7.1 Technical specifications
Spectral response
Rosemount 975MR Four infrared (IR) bands between 4 μm and 5 μm
Rosemount 975HR Four IR bands between 2 μm and 5 μm
Rosemount 975UF Ultraviolet (UV): 0.185 - 0.260 μm
IR: 2.5-3.0 μm
Rosemount 975UR UV: 0.185 - 0.260 μm
IR: 4.3 – 4.8μm
Detection range per fuel (ft./m)
Note
The ranges shown are at highest sensitivity setting for 1 ft
2
(0.1 m
2
) pan fire.
Table 7-1: Rosemount 975 Models
Fuel Rosemount
975MR Rosemount
975HR Rosemount
975UF Rosemount
975UR
Gasoline 300 ft (90 m) 93 ft (28 m)
N-Heptane 300 ft (90 m) 93 ft (28 m)
Diesel fuel 207 ft (63 m) 70 ft (21 m)
Kerosene 207 ft (63 m) 70 ft (21 m)
Alcohol 95% 185 ft (55 m) 57 ft (17 m)
Isopropyl alcohol
(IPA) 185 ft (55 m) 70 ft (21 m)
Methanol 185 ft (55 m) 57 ft (17 m)
Methane 207 ft (63 m) 60 ft (18 m)
Liquified
petroleum gas
(LPG) 207 ft (63 m) 60 ft (18 m)
Polypropylene 160 ft (49 m) 60 ft (18 m)
Paper 112 ft (34 m) 10 ft (3 m)
Hydrogen N/A 164 ft (50 m) 70 ft (21 m) N/A
Magnesium
alloy
(1)
N/A 33 ft (10 m)
Gun powder 197 ft (60 m) 66 ft (20 m) 93 ft (28 m)
Fireworks 33 ft (10 m) 10 ft (3 m)
Reference Manual Specifications
00809-1400-4975 February 2022
Rosemount 975 31