Instruction Manual
IB-106-300NH Rev. 4.2
July 2002
P-4 Rosemount Analytical Inc. A Division of Emerson Process Management
World Class 3000
Reference Air
Provides a known oxygen concentration to the ref erence side of the oxygen sensing cell.
Semiautomatic Calibration
Semiautomatic calibration is performed when t he system does not include an MPS 3000 Multi-
probe Calibration Gas Sequencer. The IFT 3000 pro vides prompts to direct the user to switch
calibration gases when performing the calibration.
Thermocouple
An electrical device made of two dissimilar metals. A thermocouple develops a millivolt signal
proportional to its temperature.
Vee Deflector
Protects the optional ceramic diffusor from the pr ocess gases. The vee deflector must be posi-
tioned so it points toward the direction of the process gas flow. See Figure 2-2 for an illustration of
the vee deflector.