WYLER BlueLEVEL, Руководство пользователя, Страница: 31 / 84

page 31 of 84
<ZERO/SELECT ±> - Keys
Function - 1 -
The keys <ZERO/SELECT ±> are used for selecting
different settings, such as:
- Measuring unit
- Ports ( "A" / "B" / "A - B" / "A B")
- Relative base settings
- Set "Zero-Offset"
- Set "REL Zero-Offset" etc.
Function - 2 -
Adjustment of display contrast
<HOLD> - Key
Function - 1 -
With the <HOLD> key a measured value may be "frozen". After pressing the key
<HOLD> without further action by the user, the measured value is collected during 15-
17 seconds and then displayed. When the conditions are stable this data collection may
be reduced by earlier pressing the key <ENTER>. The display shows "on hold". This
“frozen” value will be displayed until - by pressing the key <SEND/ESC> - the
BlueMETER BASIC will return to the measuring mode.
Function - 2 -
When using the mode "REL.ZERO" and "ABS.ZERO" the actual measuring value can
be accepted by pressing the <HOLD> key.