R&S SMJ100A, Operating Manual

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Preparing for Use
R&S
®
SMJ100A
37 Operating Manual 1403.7458.32 ─ 14
2.3.5.3 Function Check
The signal generator automatically monitors the main functions when the instrument is
switched on and continuously during operation.
A detected fault is indicated by a "ERROR" message displayed in the info line together
with a brief error description. For in-depth identification of the error, press the INFO
key. In response, a description of the error(s) is displayed.
For more information, refer to Chapter 9, "Status Information, Error Messages and
Troubleshooting" , on page 813.
Additionaly to the automatic monitoring, the R&S SMJ offers the following capabilities
to ensure correct functioning:
●
Internal Adjustments
Press the SETUP key and select "System > Internal Adjustments" to access the
dialog for preforming and configuring of the adjustments settings. A maximum level
accuracy can be obtained, for instance.
●
Selftest
A selftest is provided for service purposes. The selftest is a protected test proce-
dure, which can be accessed if protection level 1 is disabled.
2.3.5.4 Default Settings
When the instrument is switched on, it is not the preset state that is active, but rather
the instrument state that was set before the instrument was switched off. It is also reco-
mended that you use the PRESET key to return the instrument to its defined preset
state every time a new configuration is required or the current setup is not anymore rel-
evant.
The R&S SMJ offers a three-stage preset concept:
●
Preset of the settings belonging to a digital standard or associated with one dialog.
Most of the dialog boxes provide a special "Set to Default" button that resets
directly the settings associated to the corresponding dialog, e.g. all digital modula-
tion settings in the "Custom Digital Mod" dialog.
These settings are identical to those which are called up using the PRESET key.
●
Preset the instrument to a predefined state
The PRESET key calls up a defined instrument setup. All parameters and switch-
ing states are preset (also those of inactive operating modes). The default instru-
ment settings provide a reproducible initial basis for all other settings. However,
functions that concern the integration of the instrument into a measurement setup
are not changed, e.g. GPIB bus address or reference oscillator source settings.
●
Preset the instrument to its factory settings
The instrument can also be forced to load its default factory settings. To access the
corresponding dialog box, press the SETUP key and select the "Factory Preset".
For more information and an overview of the settings affected by the factory preset
function, see
Chapter 5.2.3.18, "Factory Preset" , on page 152.
Putting into Operation