Agilent Technologies InfiniiVision 6000 Series Manual de servicio Pagina 244

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244 Agilent InfiniiVision 6000 Series Oscilloscopes Programmer's Guide
5 Commands by Subsystem
:CHANnel<n>:PROTection
(see page 798)
Command Syntax
:CHANnel<n>:PROTection[:CLEar]
<n>::={1|2|3|4}
When the analog channel input impedance is set to 50Ω (on the 300 MHz,
500 MHz, and 1 GHz bandwidth oscilloscope models), the input channels
are protected against overvoltage. When an overvoltage condition is sensed,
the input impedance for the channel is automatically changed to 1 M
Ω.
The :CHANnel<n>:PROTection[:CLEar] command is used to clear (reset) the
overload protection. It allows the channel to be used again in 50
Ω mode
after the signal that caused the overload has been removed from the
channel input. Reset the analog channel input impedance to 50
Ω (see
":CHANnel<n>:IMPedance" on page 235) after clearing the overvoltage
protection.
Query Syntax
:CHANnel<n>:PROTection?
The :CHANnel<n>:PROTection query returns the state of the input
protection for CHANnel<n>. If a channel input has experienced an
overload, TRIP (tripped) will be returned; otherwise NORM (normal) is
returned.
Return Format
{NORM | TRIP}<NL>
See Also "Introduction to :CHANnel<n> Commands" on page 230
":CHANnel<n>:COUPling" on page 233
":CHANnel<n>:IMPedance" on page 235
":CHANnel<n>:PROBe" on page 239
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