Metrohm 746 VA Trace Analyzer - Manual (Page 90)

4.1 Preparations
746 VA Trace Analyzer / 747 VA Stand
4-5
In addition to the softkey >, with parameters for which only certain numeric
values or text expressions can be entered, further softkeys with these numbers or texts
appear as keying-in aids. By pressing these softkeys, the corresponding expression is
entered directly in the entry field and the field closed.
• Enter the desired date in the order year – month – day in the format
YYYY-MM-DD and confirm the entry by pressing the key. The
instrument then returns to the navigation mode.
During the entry of parameters in the edit mode, you have the following possibilities
available, among others:
− Clearing entire field contents with the key.
− Resetting field contents to the original value with the key.
− Shifting the character cursor to the right or left with the <è> or <ç> key.
− Deleting individual characters with the or key.
− Switching between entry mode (cursor fixed) and overwrite mode (cursor flashes)
with the key.
You will find further information regarding the entry of numbers and characters in section
5.2.3.
4 Setting the time
• Use the cursor key <ê> to select the entry field Time , which then be-
comes black-backed.
• If you wish to change the displayed time, follow the same sequence as
described in point 3:
− Press the space bar to enter the edit mode.
− If need be, press the softkey to display the help message
for the Time parameter. Close this window by pressing the
key.
− Enter the desired time in the order hours – minutes – seconds in the
format hh-mm-ss and confirm the entry by pressing the
key. The instrument then returns to the navigation mode.
5 Setting the screen contrast
• The contrast of the LCD can be set in steps from completely dark (value
0) to extremely bright (value 250); the set contrast value is displayed in
the Contrast parameter.
• If you wish to increase the current contrast, press the softkey
repeatedly until the desired condition is reached.
• If you wish to lower the current contrast, press the softkey
down> repeatedly until the desired contrast is reached.
There is another possibility to set the screen contrast:
Press the and <é> keys simultaneously to increase the contrast continu-
ously, press the > and <ê> keys simultaneously to lower the contrast con-
tinuously.