UNI-T UPO2000CS Series, User Manual

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UPO2000CS series User Manual
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2.2 Channel Coupling
Using CH1 as an example, when a signal is connected to CH1 and activated, press F1 and select channel
coupling via the multipurpose knob. You can also switch to channel coupling by continuously pressing the F1
key. Press in the multipurpose know to confirm selection.
Direct Current
Alternating
Current
Ground
2.3 Bandwidth Limitation
When bandwidth limition is open, the bandwidth of the oscilloscope 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 BW logo will appear in the vertical state flag shown below:
BW Logo
2.4 Vertical Sensitivity
The vertical sensitivity is divided into coarse and fine adjustments.
In the coarse adjustment, the sensitivity range is from 1mV/div ~ 20V/div, with 1 – 2 – 5 order.
For example: 10mV - >20mV - >50mV - >100mV
In fine adjustment, it adjusts in 1% of the current amplitude value steps.
For example
：
10.00mV—>10.10mV—>10.20mV—>10.30mV
Note: div indicates the display area square, and one div represents one grid
2.5 Probe
In order to set the attenuation coefficient of the probe, the coefficient needs to be set up in the channel
operation menu. If the probe attenuation coefficient is 10:1, the probe coefficient should then be set to 10X to
ensure correct voltage reading.
The coeifficients can be set to 0.001X, 0.01X, 0.1X, 1X, 10X, 100X, and 1000X.
2.6 RP (Reverse Phase)
When reverse phase is turned on, the waveform flips 180 degrees. The vertical identification will appear a
reverse phase logo .