Appendix
112
3.2.8 Voltage Autoranging
Autoranging is enabled by default and the 81150A / 81160A automatically
selects the optimal settings for the output amplifier and attenuators. With
autoranging disabled, the 81150A / 81160A uses the current amplifier and
attenuator settings.
Voltage
Autoranging
characteristics
You can disable autoranging to eliminate momentary disruptions caused by
switching of the attenuators while changing amplitude. However, turning
autoranging off has side effects:
The amplitude and offset accuracy and resolution (as well as
waveform fidelity) may be adversely affected when reducing the
amplitude below a range change that would occur with autoranging
on.
You may not be able to achieve the minimum amplitude that is
available with autoranging on.
Press and select the Output Setup softkey. Then press the Amplifier
Range softkey again to toggle between the “Auto”, “Hold” and “Auto Once”
selections.
Remote Interface
Operation
The following function is used to configure the voltage autoranging
remotely:
:VOLTage[1|2]:RANGe:AUTO {ON|OFF|ONCE}
The APPLy command overrides the voltage autorange setting and
automatically enables autoranging.
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