Tektronix DPO4000 Manuel d'utilisateur télécharger pdf (Page 131)

100

101

Commands Listed in Alphabetical Order

Examples

CH4:INVert ON i

nverts the waveform on channel 4.

CH2:INVert? might return :CH2:INVERT 0 indicating that channel 2 is not

inverted.

CH<x>:LABel

Sets or returns the waveform label for channel <x>, where x is the channel number.

Group

Vertical

Syntax

CH<x>:LABel <Qstring>

CH<x>:LABel?

Arguments

<Qstring> is an alphanumeric string of text, enclosed in quotes, that contains the

text label information for the channel <x> waveform. The text string is limited

to 30 characters.

CH<x>:OFFSet

Sets or returns the vertical offset for channel <x>, where x is the channel number.

This command offsets the vertical acquisition window (moves the level at the

vertical center of the acquisition window) for the speciﬁed channel. Visualize

offset as scrolling the acquisition window towards the top of a large signal for

increased offset values, and s crolling towards the bottom for decreased offset

values. The resolution of the vertical window sets the offset increment for this

control.

Offset adjusts only the vertical center of the acquisition window for channel

waveforms to help determine what data is acquired. The oscilloscope always

displays the input signal minus the offset value.

The channel offset range depends on the vertical scale factor.

Table 2-36: Channel Offset Range

Offset range

V/Div Setting 1 MΩ Input 50 Ω Input

1 mV/div — 50 mV/div

±1 V ±1 V

50.5 mV/div — 99.5 mV /div

±0.5 V ±0.5 V

100 mV/div — 500 mV/div

±10 V ±5 V

505 mV/div — 995 mV/div

±5 V ±5 V

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