User’s Manual MSO/UPO2000 Seri es
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5.1 Turn on/off/Activate/ Analog Channel
Four analog channel CH1
～
CH4 includes three states: Turn on, shut down and activate.
①
Turn on: Press any one of 1 , 2 , 3 , 4 to turn on the channel when channel is shut down.
②
Shut down: Waveform will not display in this state. Press the corresponding channel key to turn off
which channel has been opened and activated.
③
Activate: When multiple channels are enabled, only one channel can be activated (channel should be in
open state). Vertical scale, vertical displacement and channel setting can be adjusted in the activate
state. Any of the channels that have been opened but not activated could be activated by the
corresponding channel keys. The oscilloscope will display channel menu when the channel is activated.
Activated state Open but not activated Shut down
5.2 Channel Coupling
Set channel coupling mode in channel, which can select to DC (direct current), AC (alternating current) and
ground.
DC
AC
Ground
5.3 Bandwidth Limitation
The bandwidth limit can set to 20 MHz and full bandwidth. When soft key menu sets to 20 MHz, the bandwidth
of the oscilloscope is limited to about 20 MHz and the high frequency signal above 20MHz in the attenuation
signal. It is often used to observe high frequency noise when low frequency signals is reducing. When the
bandwidth limit function is turned on, the B icon will appear in the vertical state, as shown in Figure below.
B Icon
5.4 Volts/div Scale
Volts/div scale can be set in channel or press vertical SCALE knob to switch it. Volts/div scale can set to
“coarse /fine tunning”. Volts/div scale range is 500 uV/div
～
20 V/div
，
stepped in 1-2-5 order. In the coarse
tunning, it adjusts the vertical unit by normal order; in fine tunning, it adjusts the vertical scale within the
current vertical scale range by stepped 1%.
Note
: div indicates the grid of waveform display area, /div represents each grid.
