Emerson Rosemount 975 - Electrical Specifications

Table 7-5: Rosemount 975 Models
Rosemount 975MR Rosemount 975HR Rosemount 975UF Rosemount 975UR
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)
Three ranges:
• 10 ft. (3 m)
• 50 ft (15 m)
• 92 ft. (28 m)
Field of view
Table 7-6: Rosemount 975 Models
Rosemount 975MR Rosemount 975HR Rosemount 975UF Rosemount 975UR
Horizontal: 100°
Vertical: 95°
Hydrogen
Horizontal: 90°
Vertical: 90°
Horizontal: 100°
Vertical: 95°
Other fuels
Horizontal: 80°
Vertical: 80°
Temperature range (operating and storage)
Table 7-7: Rosemount 975 Models
Rosemount 975MR Rosemount 975HR Rosemount 975UF Rosemount 975UR
-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
24 Vdc nominal (18-32 Vdc)
Cable entries
2 x ¾-in - 14 NPT conduits or 2 x M25 x 1.5 mm International
Organization for Standardization (ISO)
Electrical input protection
According to EN 50130
Electromagnetic capability
Electromagnetic interference/Radio frequency interference
(EMI/RFI) protected to EN61000-6-3 and EN 50130
Electrical interface
The detector includes 17 terminals, one wiring option.
Table 7-8: Typical current consumption
Typical current consumption Rosemount 975MR and 975HR Rosemount 975UF and 975UR
Normal power consumption without
heater: mA (Watts)
60 (1.4) 90 (2.2)
Manual Specifications
00809-1400-4975 September2023
Rosemount 975 35