Emerson Rosemount CCO 5500, Справочное руководство

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Select the units for the alarm; these may be different than the units selected for the analog
output.
After you select the source, the instrument requires a level that will trigger the output. Set
the desired level with the arrow keys.
Cal Factor
Note
First, record the original Cal Factor before entering this mode as displayed in Mode 4
→
Calibration
Data. The Cal Factor is lost when the menu option is entered.
During the calibration routine, the instrument calculates a Cal Factor which sets the basic
calibration of the instrument. You may change this value from this mode.
Note
Since this value controls the calibration of the instrument, only change if necessary.
Plant Status Input
Use this to determine whether the plant is operating under correct conditions.
There is a choice of three controls for plant status:
Logic Input
,
Serial Input
, and
Multiple
. You
can only use one to control plant status at any one time.
• Logic Input
If the PS1 and PS2 terminals are linked in the control unit, the logic contact is made,
and the plant status is
OFF . You may link these terminals manually during a plant
shut down, or you may wire them to a switch/contact outside the unit (e.g., a value
that opens and closes the duct). Press ENTER to select this option when the Plant
Status
→
Serial Input option is displayed.
• Serial input
Configuration and startup
42 Rosemount CCO 5500