R&S RT-ZC20 Manual De Usario página 31

®
R&S RT-ZC20
Opening lever
Operating lever for opening the sensor head. Always use this lever to open the
sensor head.
Sensor head
The sensor head clamps on the conductor being measured, and carries out the
actual current measurement. It is a precision assembly including a molded compo-
nent, a ferrite core, and a Hall effect element. It may be damaged if subjected to
sudden changes in ambient temperature, or mechanical strain or shock, and there-
fore great care should be exercised in handling it.
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 measure-
ment.
The demagnetizing process takes about one second. During demagnetizing, a
demagnetizing waveform is present at the output.
Zero adjustment dial (ZERO ADJ)
Use the zero adjustment dial to correct for the effect of a voltage offset or temper-
ature drift.
When beginning measurement, after demagnetizing always carry out a zero adjust-
ment.
Coarse adjustment trimmer
Use this only when adjustment is not possible within the range of the zero adjust-
ment dial. Use a nonconductive screwdriver (e.g. ceramic driver) for adjustment.
Output connector
Connect to the BNC input connector of the waveform measuring instrument.
The current waveform of the measured conductor is output at a constant rate
(0.1 V/A).
User Manual 1409.7814.02 ─ 01
Product Description
Description of the Probe
14