Maintenance
R&S
®
SMA100B
688User Manual 1178.3834.02 ─ 05
14.3 Performing Maintenance Tasks
The R&S SMA100B is accurate due to integrated adjustment procedures, which you
can execute directly on the instrument.
Internal Adjustments
Risk of DUT damage
During internal adjustments, the instrument temporarily applies high power at the RF
output. This high power can destroy a connected DUT (device under test).
Do not start internal adjustments if the DUT is connected.
Disconnect the DUT and replace it by a terminating resistor with adequate power rat-
ing.
Note: Before the internal adjustment starts, a warning message prompts you to make
sure that you have terminated the RF output as specified in the message. The required
power of the resistor varies depending on whether the instrument is equipped with a
high power option.
If the termination resistor is missing, a second warning message appears.
Risk of invalid adjustment
Wait until the instrument has reached its operating temperature before you start the
adjustment procedure. The warm-up time is 30 minutes.
Performing Maintenance Tasks
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