Air Shield: Pn 00975-9000-0005 - Emerson Rosemount 975HR Series Reference Manual

Accessories
June 2021
D.5

Air shield: PN 00975-9000-0005

The air shield is suitable for use with the Rosemount 975 series flame detectors for both
the aluminum and stainless steel enclosures.
Optical flame detectors are often used in highly polluted or dirty areas that force
maintenance personnel to access the detector frequently to clean its optical window. The
special air shield, developed for the Rosemount 975 series optical flame detectors, allows
operators to install the flame detectors under tough environmental conditions where they
may be exposed to oil vapors, sand, dust, and other particulate matter.
The temperature of the air supply to the air shield should not exceed 140 °F (60 °C) at any
time.
Air pressure source: clean, dry, and oil-free air
Inlet pressure: 30-45 psi (2-3 bar), maximum 100 psi (7 bar)
Cubic feet per minute: 1.5-2.8
Tube outside diameter: ¼-in. national pipe thread (NPT)/6 mm
Connecting adapter size: 7/16-in. NPT
Operation temperature: -67 to 185 °F (-55 to 85 °C)
For more instructions, refer to the
Figure D-5: Rosemount 975 Air Shield
74
Rosemount 975 Air Shield Manual
Reference Manual
00809-0100-4976
(00809-0700-4975).
Emerson.com/Rosemount