Preparing for Use
R&S
®
ESW
26
User Manual 1177.6298.02 ─ 08
2. Set the AC power switch on the rear panel to position "O", or disconnect the instru-
ment from the AC power supply.
The R&S
ESW changes into off mode.
Risk of losing data
If you switch off the running instrument using the rear panel switch or by disconnecting
the power cord, the instrument loses its current settings. Furthermore, program data
can be lost.
Press the Power key first to shut down the application properly.
4.1.6
Performing a Self-Alignment and a Selftest
During instrument start, the installed hardware is checked against the current firmware
version to ensure the hardware is supported. If not, an error message is displayed
("WRONG_FW") and you are asked to update the firmware. Until the firmware version
is updated, self-alignment fails.
(For details refer to the R&S
ESW User Manual).
Furthermore, it may be necessary to align the data to a reference source by performing
a self-alignment when strong temperature changes occur.
Operating temperature
Before performing this functional test, make sure that the instrument has reached its
operating temperature (for details, refer to the data sheet).
A message in the status bar ("Instrument warming up...") indicates that the operating
temperature has not yet been reached.
Performing a self-alignment
1. Press the [SETUP] key.
2. Press the "Alignment" softkey.
3. Select the "Start Self-Alignment" button in the "Alignment" dialog box.
Once the system correction values have been calculated successfully, a message
is displayed.
To display the alignment results again later
●
Press the [SETUP] key.
●
Press the "Alignment" softkey.
Putting into Operation
