5
IM 701928-01E
1.
Connect the probe’s output terminal to the input terminal of the digital
oscilloscope.
2.
Without positioning the probe clamp around the conductor under
measurement, press the open/close lever until the unlocked indicator
goes out, then confirm that the sensor head is securely closed.
Demagnetization
3.
Press the demagnetization switch (DEMAG) on the probe interface.
Note
• Oscillation may occur when you execute DEMAG, but this has no effect on
measurements.
• The positive side of the waveform that is generated when you execute
DEMAG may not be symmetrical to the negative side, but this has no effect on
measurements.
Zero Adjustment (Residual Offset Adjustment)
4.
Confirm the input coupling of the digital oscilloscope to DC. For
instructions on selecting the input coupling, see the user’s manual of the
digital oscilloscope.
5.
Select the menu on the digital oscilloscope for performing automatic
zero adjustment on the current probe to adjust the residual offset. For
instructions on performing automatic zero adjustment, see the user’s
manual of the digital oscilloscope.
6.
If an error message appears during step 5 and you are unable to adjust
the trace to the GND level, turn the zero adjustment trimmer so that the
trace approaches the GND level, then repeat step 5.
Note
If the digital oscilloscope supports the current probe’s automatic adjustment
function*, perform automatic zero adjustment on the digital oscilloscope. However,
if the residual offset exceeds the automatic adjustment range and automatic zero
adjustment fails, turn the trimmer to carry out the zero adjustment. Upon shipment
from the factory, the zero adjustment trimmer is adjusted so that it can be used for
automatic zero adjustment in a 23°C environment after a 30 minute warm-up.
