JOHNSON CONTROLS
36
FORM 155.21-O1 (615)
PURGE TREND SCREEN
Overview
This screen gives a graphical chart tracking the Purge
Tank pressure over a selected time period for trouble-
shooting and Purge Tank Pressure characteristics .
Display Only
Purge Tank Pressure Differential Chart
A graphical chart is generated to track the Purge tank
Pressures over a 1 to 24 hour time in increments speci
-
fied by the operator.
Programmable
Chart Type
Access Level required:
OPERATOR
This key brings up a subscreen allowing the user to either
select One Screen (default) or a Continuous Chart to
represent the Purge Tank Pressure Differentials.
Interval
Access Level required:
OPERATOR
This key brings up a subscreen allowing the user to
select a 1 to 24 hour time interval (default 24 hour)
value programmable by the operator to suit specific
troubleshooting needs.
Start
Access Level required:
OPERATOR
This key allows the user to begin the trending of the
Purge Tank Pressure.
Stop
Access Level required:
OPERATOR
This key allows the user to end the trending of the Purge
Tank Pressure.
Min
Access Level required:
OPERATOR
This key allows the user to define the minimum pres
-
sure value from -10 to 300 (default 0) on the Purge Tank
Pressure Differential chart.
Max
Access Level required:
OPERATOR
This key allows the user to define the maximum pres
-
sure value -10 to 300 (default 300) on the Purge Tank
Pressure Differential chart.
Navigation
Home
Causes an instant return to the Home Screen.
LD14068
FIGURE 10 -
PURGE TREND SCREEN
OptiView Control Center
