User manual

15
Vertical System
SETUP key in the GENERAL section, and then press the
soft menu key PROBE COMP. This compensation wizard
will guide you through all the important points of the probe
compensation. After connecting a probe, you can select
the respective analog channel via soft menu key CHAN-
NEL 1 (CH1) or CHANNEL 2 (CH2). The enclosed HZ154
probe stylus allows you to set the probe trimmers to an
optimal square wave shape. The compensation is perfor-
med at 1 kHz (LF) and 1 MHz (HF). Use the soft menu FULL
SCREEN to hide the wizard help entries. Select NEXT STEP
to toggle the wizard into the 1MHz HF compensation. If
multiple probes are connected, you can switch the channel
via soft menu key NEXT CHANNEL. Use the EXIT option to
exit the wizard after a successful probe compensation.
If you would like to perform a manual compensation wit-
hout the compensation wizard, choose the UTIL menu in
the Vertical control panel, then select the soft menu key
PATTERN GEN. in the soft menu SQUARE WAVE (see
chapter 10.2.1).
4.5 Threshold Setting
On page 2|2 in the advanced MENU in the VERTICAL
section you can set a THRESHOLD. This thresholddenes
the level to detect a High or a Low if analog channels are
used as source for the serial bus analysis or logic trig-
ger. After selecting this soft menu item, you can set the
threshold using the universal knob or the KEYPAD key.
With the soft menu key HYSTERESIS a range around the
trigger thresholdlevelcanbeset.Ifthesignaljittersinside
this range and crosses the trigger level thereby, no trigger
event occurs. With FIND LEVEL will automatically analyze
thesignalandndanapproriatelevel.
4.6 Naming a Channel
The last entry NAME in the VERTICAL menu opens a
submenu which allows you to enter a channel name. This
name will be displayed on the grid and the printout. Your
rstoptionistoswitchthedisplayon(ON)oroff(OFF).
The next option includes the menu item LIBRARY. After
selecting this option, you can use the universal knob to
choose a name from several suggestions. The EDIT LA-
BEL key allows you to enter a completely new name or
Fig. 4.3: Name selection
to customize the suggested name. You may enter up to 8
characters.UsetheACCEPTkeytoconrmthenamein
the editor. It will then be shown in the display. The name
isassignedtothatspecicsignalandwillmovealongside
any set offset value.