Emerson IM-106-5500 Manual Do Utilizador

IM-106-5500, Original Issue
August 2005

3-13

CCO 5500

k. Oxygen Threshold

Set and used in a similar manner to the temperature threshold. 
However, if the normalizing oxygen level rises above the threshold, 
plant status is OFF. For plant status ON, the oxygen level must be 
below the threshold set. 

l. Water Vapor Threshold 

Set and used in a similar manner to the temperature threshold. If the 
water vapor falls below the threshold plant, status is OFF. For plant 
status to be ON, the water vapor must be above the threshold set. 

m.Detector Threshold 

Set and used in a similar manner to the temperature threshold. 
However, if the detector level rises above the threshold, plant status 
is OFF. For plant status ON, the detector level must be below the 
threshold set. Only used for the NO

x

 analyzer. 

n. Logic Input 

Either selected as YES or NO - depending on whether the logic 
contracts (PS1 and PS2) will be used to indicate plant shut down.

7. Normalization

All of the normalization inputs and 
parameters are set up from this mode. 
Press ENTER to access the mode and 
the ARROW keys will select which of the 
normalizing inputs are to be changed, they are : 

• Temperature 
• Oxygen 
• Pressure 
• Water Vapor 

After selecting the normalizing parameter, the user may set the 
standard levels to which the measurement is to be normalized, and how 
the instrument reads the value, i.e., fixed keypad input, 4-20 mA input, 
or on the serial data line. 

After selecting the parameter to be set up, the ARROW keys will select 
between entering the standard levels, and how the normalization data 
is to be brought into the instrument. 
a. Set Standard Levels 

Each normalizing parameter 
normalizes the measured gas 
concentration to standard conditions of 
temperature, oxygen, pressure and 
water vapor. These levels are set from within this option. Use the 
ARROW keys to change each displayed normalizing standard value.