Emerson Rosemount 5081FG, Reference Manual

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Reference Manual
00809-0100-4882, Rev AB
May 2019
Rosemount 5081FG
2-14
PNEUMATIC
INSTALLATION
General
Reference air is required for O
2
calculation, and calibration check gas is
required during a calibration check. Refer to Figure 2-11 for the gas
connections on the oxygen probe.
Reference Air Package
After the oxygen probe is installed, connect the reference air set. Install the
reference air set according to Figure 2-11.
Instrument Air
(Reference Air)
Instrument air is required for reference. Refer to the reference air schematic,
Figure 2-12. Use 10 psig (68,95 kPa gage) minimum, 225 psig (1551,38 kPa
gage) at 0.2 scfh (100 m /min.); less than 40 parts-per-million total
hydrocarbons. Regulator outlet pressure should be set at 5 psi (35 kPa).
Figure 2-11. Air Set, Plant Air Connections
Figure 2-12. Reference Air Schematic