Emerson Rosemount Xi, Справочное руководство

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4.7 Calibration - general
New O
2
cells may operate for more than a year without requiring calibration, but older
cells may require recalibration every few weeks as they near the end of their life.
A CALIBRATION RECOMMENDED alarm provides notice of when a calculation is required.
This strategy ensures that the O
2
reading is always accurate and eliminates many
unnecessary calibrations based on calendar days or weeks since previous calibration.
The O
2
probe(s) can be calibrated manually through the handheld Field Communicator or
the Rosemount Xi. Fully automatic calibration can be performed automatically using the
Rosemount Xi and the SPS 4001B Single Probe Autocalibration Sequencer.
4.8 O
2
calibration
This section covers manual calibration. For automatic calibration details, see the
Instruction Manual for the SPS 4001B Single Probe Autocalibration Sequencer.
Calibration can be performed using three basic calibration methods. The methods
available to you for use depend on the configuration of your system. The sections that
follow describe how to perform a calibration for two basic system configurations shown in
Figure 4-4 .
Included in the calibration procedures are instructions for setting up the calibration
parameters. Setup of the calibration parameters should be performed before the first O
2
calibration. Thereafter, perform calibration setup only as needed to change the calibration
parameters or to reset the parameters following the replacement of primary system
components.
Before calibrating, verify that the configuration gas parameters are correct. Refer to
Configure .
Startup and operation Reference Manual
October 2022 00809-0100-4889
46 Rosemount Xi