Electrical Specifications - Emerson Rosemount 975 Series Reference Manual
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Also See for Rosemount 975 Series:
- Reference manual (36 pages) ,
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- Quick start manual (28 pages)
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Reference Manual
00809-1400-4975
Sensitivity ranges
Note
All distances relate to detection of a 1 ft
Table 7-5: Rosemount 975 Models
Rosemount 975MR
Six ranges:
•
10 ft (3 m)
•
50 ft (15 m)
•
100 ft (30 m)
•
150 ft (45 m)
•
215 ft (65 m)
•
300 ft (90 m)
Field of view
Table 7-6: Rosemount 975 Models
Rosemount 975MR
Horizontal: 100°
Vertical: 95°
Temperature range (operating and storage)
Table 7-7: Rosemount 975 Models
Rosemount 975MR
-76 °F (-60 °C) to 185 °F (85 °C)
Humidity
Non-condensing relative humidity up to 100 percent.
7.2
Electrical specifications
The electrical specifications apply to all models unless stated otherwise.
Operating voltage
Power consumption
Cable entries
Rosemount 975
2
(0.1 m
Rosemount 975HR
Rosemount 975UF
Three ranges:
•
•
•
Rosemount 975HR
Rosemount 975UF
Hydrogen
Horizontal: 100°
Horizontal: 90°
Vertical: 95°
Vertical: 90°
Other fuels
Horizontal: 80°
Vertical: 80°
Rosemount 975HR
Rosemount 975UF
24 Vdc nominal (18-32 Vdc)
Standby: Max. 3 W (8 W with heated window)
Alarm: Max. 4.2 W (9.6 W with heated window)
2 x ¾-in - 14 NPT conduits or 2 x M25 x 1.5 mm International
Organization for Standardization (ISO)
2
) n-heptane fire.
Rosemount 975UR
10 ft (3 m)
50 ft (15 m)
92 ft (28 m)
Rosemount 975UR
Rosemount 975UR
Specifications
February 2022
33
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