Emerson SPS 4001B Section Operation, Overview Calibration Requirements, Calibration Gas Tanks

Instruction Manual

IM-106-340AC-1, Rev. 1.0 April 2005

SPS 4001B

Section 3 Operation

OVERVIEW

CALIBRATION REQUIREMENTS

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1 Calibration Requirements . . . . . . . . . . . . . . . . . . . . . . . . . page 3-1 Reference Air Flow Setup . . . . . . . . . . . . . . . . . . . . . . . . . page 3-3 Calibration Gas Flow Setup . . . . . . . . . . . . . . . . . . . . . . . . page 3-3 Automatic Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . page 3-3Semi-automatic Calibration . . . . . . . . . . . . . . . . . . . . . . . . page 3-4

This section specifies the requirements to set up an Oxymitter 4000 calibration and how to verify the calibration gas flow setup. It also explains the differences between automatic and semi-automatic calibrations and how to initiate them.

Calibration Gas Tanks

Two tanks of precision calibration gas mixtures are required. Recommended calibration gases are nominally 0.4% and 8.0% oxygen in nitrogen.

Do not use 100% nitrogen as a low gas (zero gas). It is suggested that gas for the low (zero) be between 0.4% and 2.0% O2. Do not use gases with hydrocarbon concentrations of more than 40 parts per million. Failure to use proper gases will result in erroneous readings.

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