Emerson 3081FG instruction manual Specifications, Probe

Model 3081FG

Instruction Manual

IB-106-3081 Rev. 1.5

September 2002

1

1-3 SPECIFICATIONS

Net O2 Range	0 to 25% O2
Fully Field Selectable via the HART Interface
Lowest Limit	0.05% O2
Highest Limit	25.00% O2
Accuracy	±1.5% of reading or 0.05% O2, whichever is greater
System Response to Calibration Check Gas	Initial response in less than 3 seconds
PROBE	T90 in less than 10 seconds
Lengths	20 in. (508 mm)
	26 in. (660 mm)
Temperature Limits	34.625 in. (880 mm)
Process Temperature Limits	550° to 1400°C (1022° to 2552°F)
	Operation to 1600°C (2912°F) with reduced cell life.
Ambient	-40° to 149°C (-40° to 300°F) Ambient
Mounting and Mounting Position	Vertical or Horizontal
Materials of Construction
Process Wetted Parts
Inner Probe	Zirconia
Outer Protection Tube	Alumina [1600°C (2912°F) limit]
	Inconel 600 [1000°C (1832°F) limit]
Probe Junction Box	Cast aluminum
Speed of Installation/Withdrawal	1 in. (25.4 mm) per minute
Hazardous Area Certification	Intrinsically safe per EN50 014 (1977), clause 1.3(1)
Reference Air Requirement	100 ml per minute (0.2 scfh) of clean, dry instrument
	air; 1/4 in. tube fittings
Calibration Check Gas Fittings	1/4 in. tube fittings
Cabling	Two twisted pairs, shielded

(1)Thermocouple and O2 probe cell are both unpowered, developing a millivolt emf, and are considered a “simple apparatus” by certifying agencies.

Rosemount Analytical Inc. A Division of Emerson Process Management Description and Specifications 1-7