Emerson Rosemount CCO 5500, Reference Manual

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Note
If normalization is not required, set the normalizing parameters for pressure in the instrument to
14.7 psi (101 kPa)(Standard Level and Keypad Input).
With an integrated system, you can take the pressure data to the instrument via the serial
data line.
Water Vapor
An across the duct monitor measures the gas concentration under wet conditions. Unlike a
sampling system, the gas has not been preconditioned in any way before you make a
measurement.
When the water vapor is at a relatively fixed level, set the standard level to
DRY
to
normalize it to dry conditions. Use a fixed value in the keypad option representing the
expected water vapor produced for the fuel type. If the measurement is not to be
normalized for water vapor, set the standard level to
WET
.
With an integrated system, you can take the water vapor data to the instrument via the
serial data line.
3.7.6 Reset averages
Note
Resetting averages causes the rolling average data to be cleared from memory.
You can reset the average values that are currently held in the four averaging stacks using
this option; this ereases the current average that is held in all of the averaging stacks.
Select this option by pressing ENTER and using the arrow keys. The instrument requests
confirmation before the averages are reset.
Note
If you select this option, all the data in the averaging stacks is reset, and the data for as much as 30
days is lost.
3.7.7 Calibrate
From this option, you may display the two detector levels and conduct a basic calibration.
While in this mode, the gas cell is not moved; this gives an immediate response for setting
up the detector levels. A Cal Factor that is calculated during a calibration routine sets the
basic calibration of the instrument. Press ENTER while this is displayed to see the following
options:
1.
Set Detectors
Configuration and startup
46 Rosemount CCO 5500