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Instruction Manual
IB-106-3081 Rev. 1.5
September 2002
1-2 Description and Specifications Rosemount Analytical Inc. A Division of Emerson Process Management
Model 3081FG
Table 1-1. Product Matrix
3081FG High Temperature Oxygen Flue Gas Analyzer
High Temperature Analyzer - Instruction Book
Code Sensing Probe Length
1 20 in. (508 mm) probe, 1/4 in. tube fittings
2 26 in. (660 mm) probe, 1/4 in. tube fittings
3 34.625 in. (880 mm) probe, 1/4 in. tube fittings
Code Probe Outer Tube Material - Maximum Operating Temperature
1 Alumina - 2912°F (1600°C) maximum - 1.25 NPT mounting
2 Inconel 600 - 1832°F (1000°C) maximum - 1.25 NPT mounting
Code Mounting Adapter - Stack Side
0 No adapter plate required uses 1.25 NPT
("0" must also be chosen under "Mounting Adapter" below)
1 New flanged installation - Square weld plate with studs (matches "Mounting Adapter" below)
2 Model 450 mounting ("4" must also be chosen under "Mounting Adapter" below)
3 Competitor's Mount ("5" must also be chosen under "Mounting Adapter" below)
Code Mounting Adapter - Probe Side
0 No adapter plate
1 ANSI 2 in. 150 lb flange to 1.25 NPT adapter
(6 in. dia. flange, 4.75 in. BC with 4 x 0.75 in. dia. holes)
2 DIN to 1.25 NPT adapter (184 mm flange, 145 mm BC with 4 x 18 mm dia. holes)
3 JIS to 1.25 NPT adapter (155 mm flange, 130 mm BC with 4 x 13 mm dia. holes)
4 Model 450 to 1.25 NPT adapter
5 Competitor's mounting flange
Code Electronics & Housing - Intrinsically Safe, NEMA 4X, IP65
1 3081 Electronics (Hart-compatible) - CENELEC EEx ia IIC T5
2 3081 Electronics (Hart-compatible) - CSA pending
3 3081 Electronics (Hart-compatible) - FM Class I, Div. I, Groups B,C,D
Code Housing Mounting
0 Surface or wall mounting
1 1/2 to 2 in. pipe mounting
Code Communications
0 No remote control
1 Infrared Remote Control (IRC)
(LCD display through cover window)
Code Calibration Accessories
1 No hardware
2 Calibration and reference air flowmeters and refer-
ence air pressure regulator
Code Armored Cable Length
00 No cable
11 20 ft (6 m)
12 40 ft (12 m)
13 60 ft (18 m)
14 80 ft (24 m)
15 100 ft (30 m)
16 150 ft (45 m)
17 200 ft (61 m)
18 300 ft (91 m)
19 400 ft (122 m)
20 500 ft (152 m)
3081FG2100111211 Example