Monarch Instrument DC 2000 - Manual (Page 43)

Chapter 3 Getting Started
Page 3-13
It is then necessary to define chart scale A to suit the requirement - Section 5.5.2. In order to maximize the
display resolution, the user is interested in pressure ranges from 2000 to 2500 only. Scale A is thus set for a low
end of 2000, a mid-range of 2250 and a high end of 2500. This scale point is now assigned to the bar graph and the
chart graph. The chart will thus display from 2000 to 2500 as will the bars, maximizing the display resolution for the
value of interest. The user can choose to record this particular value, in other words, what you see on the chart is
what is recorded to disk, values from 2000 to 2500. Or, if so desired, the user can choose to record a second point
which will show pressures from 0 to 3000. To do this, use the channel 1 as a base point for a computational
channel and multiply this value by 1 which is then recorded to disk.
3.6 Programming
While the unit may be programmed remotely, this exercise deals with manually programming the unit from the
front panel using the display and the touch screen keypad. Various buttons and keys will be presented on the
display. The user simply makes a choice by pressing the appropriate key or button. In some instances, direct
selection is not possible but rather a series of choices is made by using an UP or DOWN arrow button, pressing
ENTER or EXIT. Once programming is complete, the unit automatically LEARNS the current setup which is
stored in nonvolatile memory and remembered indefinitely.
When powering up the unit for the first time or if the data in the nonvolatile memory should become corrupt, the user
will be asked to perform a Smart Initialize, select No. The user will then be requested to perform a full initialization.
Select Yes at this stage to reset all values to the default.
There are many parameters that can be programmed, including time and date, the display, the virtual chart and
pens, the points, the recording capability, the alarms, the digital outputs and the communication port.
3.7 Programming Time and Date
Begin by programming the time and date. To enter the program mode, press the MENU button displayed in the
bottom right corner of the screen. This will bring up the Command Button Bar. The Status Line may display
“Command?” or any other preprogrammed item that the user has chosen. To enter the Programming mode,
push the PROG button which will bring up the Program menu. The user can navigate about this menu by using
the UP and DOWN arrow keys to highlight the menu choice and then pressing ENTER. Note that as a choice
scrolls off the bottom of the menu, it reappears at the top. This is a quick way of getting around the choices.
Some buttons also auto repeat. At any time, the user can exit from the menu by pushing the EXIT button as
many times as it takes to return back to the display screen.
Use the UP and DOWN arrows to select the Time and Date menu choice then press ENTER. The current time
will be displayed in 24 hour format. If the time is correct, you may choose not to program the time by pressing
YES or ENTER to accept the current time. To change the time, press NO. You will be presented with the hours
menu and a numeric keypad which will enable you to enter the current time in hours. Use the LEFT and RIGHT
buttons to move the cursor to the digit you wish to change or simply enter the hours using the numeric keys. Use
the SPACE button (SPC) to clear any digit. Once you have selected the correct number of hours, press
ENTER. Note that you cannot enter an illegal value. Once the hour has been programmed, the minutes
menu will be presented. This will then be followed by the seconds menu once the minutes have been pro-
grammed.
Once the time has been programmed, the date is presented. To change the date, select No. To accept the date,
select Yes or ENTER. Once the date has been programmed or accepted, you will be returned to the Program
menu.