Metrohm 746 VA Trace Analyzer - Manual (Page 268)

5.5.3 CURVES
746 VA Trace Analyzer / 747 VA Stand
5-117
Softkeys Meaning
Start
zoom
Select zoom range
This softkey starts the selection of the zoom region (curve section
which should be enlarged).
First, the cursor keys <è>, <ç>, <é> and <ê> must be used
to define the top left corner point of the zoom region (marked by a
cross) as follows:
Each time these keys are pressed, the corner point moves
in the selected direction by 5 pixels. A finer shift of 1 pixel
can be achieved when the key is pressed at the
same time. In both cases, the cursor keys are repetitive, i.e.
the longer the cursor key is pressed, the further the corner
point is shifted.
Uppr/lft
corner
Once the top left corner point is in the desired position, it must be
fixed by pressing the softkey
or the
key. Next, the bottom right corner point of the zoom region is also
defined using the cursor keys. This automatically opens a frame
encompassing the region to be enlarged.
Lwr/rght
corner
Once the bottom right corner point is in the desired position, it must
be fixed by pressing the softkey
or the
key. The selected zoom region is then shown full screen.
The procedure described for selection of the zoom region can be
repeated several times in succession. The enlarged curve display
remains active until the key or the softkey
is
pressed.
Reset
zoom
Reset zoom range
For the display of the cyclic curve the axis scalings of the display/plot
parameters are again used.
Next
VR
Display next curve
Switch to the next cyclic curve VR (the current VR number is shown in
the title line). The same function can also be initiated with the cursor
key <é>.
When several curves are displayed, the current curve is shown in
black, the remaining curves in gray. The selection of VR determines
what curve is switched to with
.
*# Switching of the variation has precedence
(e.g.
00 → 10 → 20 → 01 → 11 → 21 → 02 → 12 → 22 )
#* and ** Switching of the replication has precedence
(e.g.
00 → 01 → 02 → 10 → 11 → 12 → 20 → 21 → 22 )
Once the last cyclic curve has been reached, the warning last
cyclic replication reached appears in the system window.