Owner manual

4.1 Preparations

746 VA Trace Analyzer / 747 VA Stand

4-5

In addition to the softkey <Help>, 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 <ENTER> 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 <CLEAR> key.

− Resetting field contents to the original value with the <ESC> key.

− Shifting the character cursor to the right or left with the <è> or <ç> key.

− Deleting individual characters with the <BACK SPACE> or <DELETE> key.

− Switching between entry mode (cursor fixed) and overwrite mode (cursor flashes)

with the <INSERT> key.

You will find further information regarding the entry of numbers and characters in section

5.2.3.

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 <Help> to display the help message

for the Time parameter. Close this window by pressing the

<ENTER> key.

− Enter the desired time in the order hours – minutes – seconds in the

format hh-mm-ss and confirm the entry by pressing the <ENTER>

key. The instrument then returns to the navigation mode.

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

<Contrast up> repeatedly until the desired condition is reached.

• If you wish to lower the current contrast, press the softkey <Contrast

down> repeatedly until the desired contrast is reached.

There is another possibility to set the screen contrast:

Press the <SHIFT> and <é> keys simultaneously to increase the contrast continu-

ously, press the <SHIFT> and <ê> keys simultaneously to lower the contrast con-

tinuously.