Corghi ET88 Manual De Uso página 104

central hole.
ICON
Video representation of a key with graphics indicating the relative command.
IMBALANCE
Non-uniform distribution of the wheel mass that results in the generation of
centrifugal force during rotation.
SELF-CALIBRATION
A procedure whereby suitable correction coefficients are calculated by starting
from known operating conditions. Self-calibration improves the measurement
precision of the machine by correcting, within limits, calculation errors that may
arise due to alteration of the machine's characteristics over the course of time.
SENSOR (Measuring arm)
Mobile mechanical element brought into contact with the rim in a preset position
to measure its geometrical data. The data can be measured in automatic mode if
the sensor is equipped with suitable measurement transducers.
SPIN
Procedure starting from the action that causes the wheel to rotate and the
successive free rotation of the wheel.
SPINNER
Device for clamping the wheel to the balancing machine. The spinner features
elements for engaging to the threaded hub, and lateral pins that are used to
tighten it.
STATIC BALANCING
In static balancing only the static component of the imbalance is corrected. This is
achieved by fitting a single weight - usually at the centre of the rim channel. The
accuracy of this system increases as the width of the wheel decreases.
THREADED HUB
Threaded part of the shaft that is engaged with the spinner to clamp the wheel.
This component is supplied disassembled from the machine.
104 ET 88 operator's manual