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Input coupling
50
1
Fig 42
2
3
Fig 43
Aps230 ADVANCED PersonalScope
CHOICE OF INPUT COUPLING
Choice of input coupling AC (1) or DC (2).
Depending on the signal to be measured, the
input can be connected 'direct' or by means of
a DC voltages. Press the "AC/DC/GND" key
repeatedly to select either AC or DC input
coupling (3).
To measure the "ripple" on a DC
voltage : put the input to 'AC' to limit the
measurement to the AC component of the
signal only.
Note:
At time bases of 0,1s/div and slower, the
•
input coupling is DC-only.
Channel 1 and channel 2 can be set up
•
independently.
SET THE ZERO DC REFERENCE
Switches the scope input to ground and stores
the trace position as a new dc zero reference.
Use this function to find and set the zero DC-
reference trace on the screen (3).
The time base will temporarily be set to
5mV/div while you're setting a new
reference point.
TM
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