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

Reference Manual
00809-0100-4975
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
Pressure: 2 - 3 bar (30 - 45 psi)
Fitting: 7/16 in. - 20 UNF - 2 A
Operation temperature: -67 to 185 °F (-55 to 85 °C)
For more instructions, refer to 00809-0700-4975.
Figure D-6: Air Shield
Rosemount 975MR
Accessories
August 2019
69