N2780/81/82/83 User’s and Service Guide
15
5
Barrier
This structure reduces the likelihood of touching the
conductor while testing, and indicates the limit of safe
physical contact. Avoid touching the clamp in front of the
barrier when clamping or measuring.
6
Demagnetizing switch (DEMAG)
This demagnetizes the core if it has been magnetized by
switching the power on and off, or by an excessive input.
Always carry out demagnetizing before a measurement.
The demagnetizing process takes about 3 seconds. During
demagnetizing, a demagnetizing waveform is output.
7
Zero adjustment dial (ZERO ADJ)
Use the zero adjustment dial to correct for the effect of a
voltage offset or temperature drift on the device.
When beginning a measurement, after demagnetizing,
always carry out a zero adjustment.
8
Output connector
Connect to the BNC input connector of the oscilloscope.
9
Power plug
Connect this to the Agilent N2779A Power Supply
receptacle to supply power to the sensor terminator.
10
Barrier
This structure reduces the likelihood of touching the
conductor while testing, and indicates the limit of safe
physical contact. Avoid touching the clamp in front of the
barrier when clamping or measuring.
N O T E
The output of the current probe is terminated internally.
You must select the input impedance of the oscilloscope to
be 1 M
in order to make accurate measurements. If the
oscilloscope you are using does not have a 1 M
input
impedance setting you can purchase the Agilent E2697A
50
to 1 M
adapter.
Turn the collar until it clicks, and check that it is locked
securely.
medium_standard.book Page 15 Friday, September 10, 2010 2:45 PM
