UNI-T UPO2000E Series, Руководство пользователя

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1.7 Special Symbols Introduction
Take the left menu as an example:
:
Indicates there is a next level menu.
:
Indicates there is a drop-down menu.
:Indicates the menu has two options.
:Indicates the user can adjust by the Multipurpose knob.
:The number of circles indicatesthe total pages of the menu. There is no small circle for one
single page. For two pages or more, small circles will be shown. Press the next page key to
turn the page.
UPO2000E provides 4 or 2 analog input channels. The 4 analog channels are CH1~CH4, and the 2 analog channels are
CH1 and CH2. The vertical system settings for all channels are exactly the same.
This chapter uses 1 (Channel 1) as an example to describe the vertical channel settings.
2.1 Open/Activate/Close Analog Channel
CH1~CH4 contains 3 states: open, close, and activated
a. Open: Press any of 1 , 2 , 3 , 4 under close state to open corresponding channel.
b. Close: No waveform displays on the corresponding channel. .For any opened and activated channel, pressing its
channel button can close that channel.
c. Activated: Only one channel in opened state will be activated when multiple channels are opened at the same time.
In the active state, the vertical menu and the vertical control knobs (POSITION, SCALE) are for changing activated
channel setting. Any of the channels that have been opened but not activated could be activated by the corresponding
channel keys, and displays the menu.
Chapter 2 Vertical Channel Settings
Activated state Open but not activated
2.2 Channel Coupling
Press 1
→
Coupling to select DC , AC or Grounding mode.
Direct Current Alternating Current Grounding
2.3 Bandwidth Limitation
Press 1 → Bandwidth limition to turn it on which is limited to about 20MHz, and attenuates any signal above 20MHz.
It is commonly used to reduce the high frequency noise within the signal. When the bandwidth limit function is on, the B
icon will appear in the vertical state flag shown below:
B icon appears when the bandwidth limitation is on
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