Revision 1 48 9/10/2019
4.3.2 Central Region
The present concentration of phosgene is indicated in the center of the display. The display
can be configured to read the calculated concentration for the last completed cycle or the live
instantaneous reading for the current cycle. The live mode will be indicated by the presence
of the letter L before the analysis units.
4.3.3 Display Menus and Sub-menus Descriptions
The bottom two lines of the main page define the four soft keys on the keypad (F1-F4). Each
of the keys accesses additional features and the definition of the various keys changes as the
operator selects a specific function as described in Sections 4.4 to 4.8.
Table 4-3: LCD Main Screen Function Key Definitions
Stream menu: Allows the operator to view/edit stream
parameters such as gas concentrations, Alarm set-points, gain
settings initiating specific gas runs, etc.
Alarms menu: Allows the operator to view the analyzer alarm list.
This list will show all active alarms.
Display menu: Allows the operator to view the current status of
the Sequencer setup (SQNC), the discrete Input/Outputs (I/O),
the current concentration values (READ) for each gas run in the
sequence and what is currently scheduled (SCHED) and
Configuration menu: Allows the operator to view/change a broad
range many parameters on the analyzer.
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