Firefighting Equipment To Be Used; Glossary - Corghi EXACT 70 Manual De Uso

FIrEFIGHTING
EQUIPmENT To BE USED
when choosing the most suitable fire-extinguisher
refer to the table below.
Dry materials
water YES
YES
Foam
Powder YES*
CO YES*
2
YES* Use only if more appropriate extinguishers are not on
hand or when the fire is small.
Flammable liquids
water NO
YES
Foam
Powder YES
CO YES
2
Electrical equipment
water NO
Foam NO
YES
Powder
YES
CO
2
WARNING
The information in this table is of a general nature
and is intended to provide users with general guid-
ance. Contact the manufacturer for details of the
applications of each type of extinguisher.

GLoSSArY

Calibrator
Precision device on which the measuring sensors are
fitted for calibration; this instrument is constructed
to very high precision standards and must be stored
with great care.
Calibration eliminates any shifts in transducer
position due to small knocks or temperature vari-
ations.
CCD (Charge Coupled Device)
Special type of sensor used in TV cameras; has
excellent light sensitivity.
Characteristic angles
This term refers to all the angles that can be normally
measured on a wheel aligner (total front/rear toe,
left/right and front/rear half toe values, left/right and
front/rear camber, left/right caster, left/right king-pin
angle, and steering angle difference at 20°).
Clamp
Adapter between the wheel and the measuring
sensor.
92
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Equatorial plane
Ideal vertical plane that divides the wheel into two
equal parts.
Head
Synonym of "sensor"
Inclinometers
Electronic devices that measure their angle of in-
clination with respect to the vertical; they are used
to measure camber.
Infrared rays (IR)
Electromagnetic waves that are invisible to the
naked eye.
Longitudinal goniometer
CCD sensor that measures the angles using the
infrared ray that is parallel to the symmetry axis of
the vehicle; goniometers that measure the angles
between the front and rear parts of the vehicle.
Oscillating footboard
The function is similar to that of the rotating platform,
but it is used for the non-steered wheels only.
Rotating platform
Base equipped with a disk on which the steered
wheels of a vehicle rest; it is used to reduce fric-
tion between the wheel and the ground, in order
to favour the settling of the suspensions and cancel
the measuring errors during the steering.
It is highly important to keep the area between the
disk and the base clean at all times.
Sensors
Measurement instruments that are applied to the
vehicle wheels to measure characteristic angles.
Transducers
Electronic component that converts a physical
parameter into another type of parameter, e.g.
angle transducers convert angles into proportional
electronic signals.
Transverse goniometer
CCD sensor that measures the angles using the infra-
red ray that cuts the vehicle crosswise; goniometers
that measure the angles between the right and left
sides of the vehicle.
Operator's Manual EXACT 70