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Instruction Manual
IM-106-5500, Original Issue
August 2005
CCO 5500
4-16
Serial Input — If this option is selected the criteria controlling plant status
are transmitted via the serial data link. Select this option by pressing
ENTER when the 'Plant Status - Serial' screen is displayed.
Multiple — Four options are available here. Press ENTER when the 'Plant
Status - Multiple' screen is displayed. The first option is displayed -
Temperature. Use the arrow key to toggle YES or NO. NO will mean that
the temperature threshold is not used to determine plant status. If YES is
selected the display will enter the display below. Configure the instrument
for temperature threshold, press ENTER when correctly configured and
the display will move to the next option. Select YES or NO in a similar
manner to above. After the last option has been set (Logic Input) the
display will return to the 'PARAMETERS - Plant Status I/P' screen. Use the
down arrow to scroll down to EXIT and press ENTER. The plant status is
now fully configured.
Plant status will only be OFF if all options selected are registering plant
status OFF. If any one of them is not fulfilling plant status OFF conditions,
then the instrument will register plant status ON.
Temperature Threshold — A value is set here for the temperature
threshold. While the temperature (taken from the normalizing
temperature) is above the threshold value, plant status is ON. If the
temperature drops below the threshold, plant status is OFF and only
the seconds averaging stack will update.
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.
Water Vapor — Set and used in a similar manner to the temperature
threshold. If the normalizing water vapor level falls below the threshold,
plant status is OFF. For plant status ON, the water vapor level must be
above the threshold set.
Logic Input — Select YES or NO and press ENTER. For plant status
to be ON the logic input (PS1 and PS2) must be open circuit; for plant
status to be OFF the logic input must be closed circuit. After this option
has been configured the menu will exit to 'Multiple'. Use the down
arrow to select EXIT and press ENTER.