UNI-T UTD1000 Series Operating Manual page 26

UTD1000 User Manual
Press [F2] to select DC coupling. DC quantities of
the signal being tested and input to Channel A will be
intercepted. Only AC quantities can pass through. The
waveform display is as follows :
Figure 2-7 Only AC quantities of the signal are displayed
AC coupling setup
Press [F2] to select ground coupling. The channel input
is now set to equivalent ground. The channel input level
appears on screen and waveform display is as shown in
Figure 2-8 :
(Note : In this mode, although waveform is not
displayed, the input signal remains connected to
the channel circuit)
Figure 2-8 Screen display for the ground mode
Ground coupling setup