35
Subject to change without notice
C o n t r o l s a n d R e a d o u t
32.1
AUXILIARY INPUT
33
is the external trigger input. For
setting external triggering press SOURCE
18
, select the ”Trig.
Source“ menu, then ”External“.
32.2
If ”External“ triggering was not selected the menu ”Z Input“
will open up, also allowing you to select AC or DC coupling. If
”Off“ is chosen the AUXILIARY input has no function. If ”On“ is
chosen it will function as Z input i.e. intensity modulation input.
This input is intended for TTL signals: a voltage of
>
1 Vp will
turn off the trace.
33
AUXILIARY INPUT
(BNC connector)
The input can serve as external trigger or Z–axis (intensity
modulation) input.
The connector housing is connected to the instrument housing
and thus to safety ground. The ring around the connector is the
probe identifi cation contact, no voltage may be applied here.
34
PROBE ADJ.
(connector)
A square wave signal of 0.2 V
pp
is available for the adjustment
of 10:1 probes. The frequency can be selected by pressing
the pushbutton PROBE ADJ. and calling the menu ”Utilities“.
Further information may be found in the section ”Probe adjust-
ment and use“ in the chapter ”Operation and presettings“.
35
PROBE ADJ
(pushbutton)
This pushbutton produces the menu ”Utilities“, two options
are available:
35.1 COMP. Tester On Off.
If ”On“ is chosen a trace and a readout display ”Component
Tester“ will appear.
In this mode the 4 mm connectors labelled ”COMPONENT
TESTER“ become the measuring input. See also the chapter
”Component Tester“.
Choosing ”Off“ will return the instrument to all former set-
tings.
35.2 Calibrator 1kHz / 1MHz
Depending on the setting the square wave signal frequency at
the PROBE ADJ-socket is 1 kHz or 1 MHz.
35.3 Info
This function key opens the submenu “Utilities Information”.
It contains information about model, software, hardware and
interface (if fi tted).
36
COMPONENT TESTER
(sockets)
Both 4 mm diameter sockets serve as a two pole input for
component test. Further information can be found under section
Component Tester.
37
MENU OFF
(pushbutton)
Pressing this pushbuttones the menu display off.
