Emerson Rosemount CCO 5500, Reference Manual

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Security Number
To prevent any unauthorized tampering with the setup information, it is important to
change the security code from the factory setting.
Select each digit with ENTER and change it with the arrow keys.
Note
It is important to make note of this number; otherwise, it will not be possible to change the
instrument set up.
Identity Number
If you are using the system as part of an integral monitoring system and are using the serial
input and outputs, the central processor requires a
Device Identity to identify each
instrument. This number must be unique for each equipment item and can be set from 1
to 30 as required.
Path Length
Note
Once you select path length, the instrument displays the current value for one second. The first value
of the display then defaults to zero; therefore, you must re-enter the value to calculate the gas
concentrations correctly.
The transmissivity of any gas depends both on the concentration and on the path length
through which the radiation is transmitted. Similarly, the output of the Rosemount
™
CCO
5500 Analyzer gas monitor also depends on the path length of the flue gas through which
the radiation is transmitted.
Refer to Section 2.4.1 .
The Rosemount CCO 5500 Analyzer is sensitive to the product of concentration and path
length. In order to obtain a true value of concentration of gas, you must input the correct
path length into the processor. The processor then uses the value to produce a final value
of gas concentration.
Note
The path length entered must represent the length of the actual gas pass, not the flange to flange
dimension between the source and receiver.
Operation
66 Rosemount CCO 5500