User Manual

OVERVIEW
15
Parts of the Sensor
X
Opening lever
Operating lever for opening the sensor head.
Always use this lever to open the sensor head.
Y
Sensor head
This clamps the conductor being measured, and
carries out the actual current measurement. It is a
precision assembly including a molded
component, 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 therefore great
care should be exercised in handling it.
Z
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 measurement. The
demagnetizing process takes about one second.
During demagnetizing, a demagnetizing
waveform is output.
[
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 measurement, after
demagnetizing always carry out zero adjustment.
\
Coarse
adjustment
trimmer
Use this only when adjustment is not possible
within the range of the zero adjustment dial.Use a
nonconductive screwdriver (e.g. ceramic driver)
for adjustment.
]
Output
connector
The current waveform of the measured conductor
is output at a constant rate (0.1 V/A).
Connect to the BNC input connector of the
waveform measuring instrument.
^
Power plug
Connect this to the GCP-206P or GCP-425P
POWER SUPPLY receptacle to supply power to
the sensor terminator.