Monarch Instrument DC 2000 - Manual (Page 32)

Page 3-2
Chapter 3 Getting Started
The VIEW button is on the lower left side of the screen, and it enables the user to scroll through the selectable
display options in the graphics area of the screen. These views might be charts, bar graphs, digital or alarm
information. Each time the “button” is pressed, the next view is presented. The Graphics display can be either a full
screen of information, or the screen can be split, allowing combinations of the primary screens to be displayed. The
user can also choose whether the screen is horizontally or vertically oriented.
The area along the top of the display is the Status Bar or Status Line, and it is used to display a number of user
programmed functions such as the unit tag (identification) or the digital values of the various channels or alarm
status. On the right hand side of the Status Line is the disk status information (disk info). This displays the
current condition of the disk that is currently being used to save data. When the unit is not recording, this area
shows REC OFF. When Recording it displays REC
↑↑↑↑↑ when recording at the fast rate or REC↓↓↓↓↓ when recording at
the slow rate, as well as XX% used, where XX is the amount of disk space already recorded. The default display
is set using the DISPL option on the Command Menu button bar. The JOG button is used to switch between
channel data.
To the left of the Status Line is the position of the ACK button (not shown). This is the Alarm ACKnowledge and
is only present when there is an alarm condition, at which time it blinks until the user presses it to acknowledge
the alarm condition. Pressing the Acknowledge button will also reset any output relays if this option is installed and
programmed. Note that the ACK button will always be the top most button, always rising to the surface when
covered by other items such as menus. The user can thus acknowledge an alarm at any time, even while in the
programming mode.
As the user moves through the menu options, more or fewer buttons will be shown. The key buttons are always
displayed on the button bar along the bottom of the display. ENTER and EXIT buttons are always in the same place
on the button bar allowing rapid movement through menus.
The BROWSe button is only displayed on screen views that can actually be browsed. These are the full Chart
Screen and the full Alarm Status Screen. The user can choose to browse RAM (Random Access Memory) which
is the screen trace data, or File, in which case a file menu will be presented so that the user can choose a file from
the disk. The BROWS button also allows the user to SEARCH historic data either by TIME or VALUE, as well as
COMPRESS data in time.
Pressing the BROWS button puts a freeze on real time display and allows the user to scroll back in time to
browse through historical data that has passed off the screen or has been recorded previously, even on another
machine. The actual Chart Screen browse buffer is dependent on the memory options installed, the number of
traces being displayed and the effective chart speed. With the standard buffer, a chart speed of one inch per
hour with four traces active, it is possible to browse back around 140 hours (5½ days). The user may choose to
browse files on the disk rather than the current memory buffer even though the unit is currently recording. The
user can then browse files that had been recorded earlier, or may even browse the file that is currently being
recorded. Once the data has been recorded to disk, it is possible to use the file browser or the PC and the
companion software to view data as far back as the start of recording, irrespective of how long that may be,
within the constraints of disk capacity.