20
IM 702915-01EN
Component Functions
Sensor head
Inside the tip of the sensor unit, sensor head detects the current in a
conductor. It is an intricately assembled component made of a molded
part, ferrite core, Hall effect element, and so on. It needs to be handled
with care as it can be damaged from drastic ambient temperature
changes, mechanical stress or shock, and so on.
Jaw
Clamp this part around a conductor to be measured by operating the
opening lever, which allows the upper jaw to slide.
Opening lever
This lever is for opening and closing the upper jaw. By retracting the
upper jaw with this lever, it can be locked in place.
Sensor aperture
A conductor to be measured must pass through this aperture. Insulated
conductor can be measured. Measurable diameter of conductors is 5
mm or less.
Current direction mark
Clamp the jaw around a conductor so this mark matches the current
direction of the conductor to be measured.
Lock release lever
This lever is for releasing the output terminal lock. To remove the
output terminal, release the lock with this lever first.
DEMAG/AUTO ZERO key
Press and hold (about 1 second) to perform demagnetization and zero
adjustment.
Short press (less than 0.5 seconds) to perform only zero adjustment.
The demagnetization function cancels the magnetization of the
magnetic core caused by power ON/OFF or excessive input. The auto-
zero function corrects unnecessary effects such as offset voltage and
temperature drift of the instrument. Following demagnetization, it is
automatically zero-adjusted.
2. Configuration and Functions
