32
N2780/81/82/83 User’s and Service Guide
3
Connect the output connector of the current probe to the
input connector of the oscilloscope. Turn the collar until
it clicks, and check that it is locked securely.
4
Without clamping the conductor to be measured, press the
opening lever until the "UNLOCK" indication disappears,
and check that the sensor head is properly closed.
5
Press the demagnetizing switch (DEMAG) on the
terminator.
6
Turn the zero adjustment dial on the terminator to adjust
the trace to the zero position.
7
If zero adjustment is not possible in step 6, turn the
coarse adjustment trimmer to bring the trace within the
range of adjustment by the zero adjustment dial.
C A U T I O N
•
When disconnecting the output connector, be sure to
release the lock, then pull the connector. Forcibly pulling
the connector without releasing the lock, or pulling on the
cable will result in damage to the terminator.
•
Do not demagnetize while the conductor being measured
is clamped. This could damage the components of the
circuit being measured.
•
Check that the conductor being measured is not clamped
when supplying power to the current probe for the same
reason. Demagnetized waveforms are generated when
switching on the supply.
medium_standard.book Page 32 Friday, September 10, 2010 2:45 PM
