York YT Millennium, Эксплуатация и техническое обслуживание

Страница: 83 / 156

FORM 160.55-O1 (920)
83
YORK INTERNATIONAL
DISPLAY ONLY
This screen allows the user to view the graphical trend-
ing of the selected parameters and is also a gateway to
the graph setup screens.
A red screen with the words “TREND
MAX MUST BE > TREND MIN” will
appear if the Y-Axis minimum has
been programmed to a value that is
greater than the Y-Axis maximum for
any parameter. If this appears, proceed
to the Trend Setup Screen to change
the values.
PROGRAMMABLE
Start
Access Level Required: OPERATOR
Pressing this key clears the graph, starts a new graph,
sets the time of day to the present clock time and begins
the trending. This key is only available if trending is
stopped. If the selected Chart Type is TRIGGERED and
TRIGGER ACTION is set to START, data collection
will not begin until the Triggers have been satisfied and
any selected TRIGGER DELAY has elapsed. Otherwise,
data collection will begin immediately.
Stop
Access Level Required: OPERATOR
Pressing this key stops the trending. The trend data
is frozen on the display until another graph is started
with the START key. The STOP key is only available if
trending is running.
Data Select
(Flash Memory Card version C.MLM.02.02.xxx
and later)
Access Level required: VIEW
Allows the user to display all trended data points simul-
taneously or select a single trended data point for display,
hiding the other data points. Selections are ALL DATA
or DATA POINT X (1-6).
Print
(Flash Memory Card version C.MLM.02.02.xxx
and later)
Access Level Required: VIEW
Allows the data on the trend screen to be printed in
tabular format. If set to EXISTING, a snapshot of the
data presently on the screen is sent to the printer. If set
to NEW, all data collected after pressing this key will be
sent to the printer as it is collected. If set to DISABLED,
no data is sent to the printer. Refer to PRINTERS section
of this book for printout example.
Y-Axis
Access Level Required: VIEW
This key toggles the Y-Axis labels of the graph. Each
key press changes the label to another of the selected
parameters.
X-Axis
Access Level Required: VIEW
This key toggles the X-Axis labels of the graph. Each
key press alternates the scaling between time of day and
elapsed time. The Time of Day scaling is in 24-hour for-
mat. The Elapsed Time scaling is the time elapsed since
the START key was pressed, starting the trending.
NAVIGATION
Home
Access Level Required:
VIEW
Causes a return to the Home Screen.
History
(Flash memory Card version C.MLM.02.01.xxx and
earlier)
Access Level Required:
VIEW
Causes a return to the Home Screen.
Trend Setup
Access Level Required:
Only displayed if the trending is stopped. Causes a jump
to a subscreen for configuring the trending display.
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