Reverse Phase; Bias Voltage - UNI-T UPO2102 User Manual

User's Manual MSO/UPO2000 Seri es
5.5 Probe
In order to match up the attenuation coefficient setting of the probe, the coefficient need to set in channel
operating menu. If the probe attenuation coefficient is 10:1, then the probe coefficient should set to 10X to
ensure the correct voltage reading. When channel unit is V, W, U, the probe value can be 0.001X, 0.01X, 0.1X,
1X, 10X, 100X, 1000X and user-defined; when channel unit is A, it displayed as current probe and the probe
value can be 5mV/A, 10mV/A, 50mV/A, 100mV/A, 200mV/A and user-defined.

5.6 Reverse Phase

Set the reverse phase in channel. When reverse phase is turned on, the voltage value of waveform will be
reversed and the reverse icon will display on the screen (as shown in Figure 5-2).
Figure 5-1 Reverse Phase Closed Figure 5-2 Open Reverse Phase
5.7 Unit
Set the amplitude unit for the current channel. Unit setting should set in channel, it can set to "V", "A","W", "U".
The default unit is V. Unit should switch to "A" when using current probe. After the setting, the unit in the
channel status label and measurement unit will be change accordingly.

5.8 Bias Voltage

Display bias voltage of the current channel. When waveform moved by vertical Position knob, its voltage value
will change accordingly. Change bias voltage value by Multipurpose knob or numeric keyboard, waveform will
also moved in vertical.
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