Greer Company
Greer Company
Greer Company
Greer Company
Crane Systems
1918 EAST GLENWOOD PLACE, SANTA ANA, CA 92705
Tel: (714) 259 9702 Fax: (714) 259 7626
MicroGuard
424 Operation/Troubleshooting Manual Horizontal Display Hydraulic Cranes
46 of 52
W424103 REV A 02/13/01
GLOSSARY OF TERMS
GLOSSARY OF TERMS
GLOSSARY OF TERMS
GLOSSARY OF TERMS
ABORT
The premature termination of a data entry procedure.
ALARM
A signal that warns or alerts such as a flashing light or loud noise.
AMPLIFIER
A device which takes an input and produces an output of greater magnitude (as in the case of a pressure
transducer where a signal in the millivolt range is amplified to the level of up to ten volts).
AMPLIFIER GAIN
The factor used to express the level of amplification.
ANALOG
A mechanism in which data is represented by continuously variable physical quantities.
ANGLE SENSOR
A device which measures the inclination of a boom.
ANNULAR
Relating to, or forming a ring. e.g. the pressure around the rod of a boom hoist cylinder.
ANNULAR GAIN
The factor used to modify the pressure signal from the rod side of the boom hoist cylinder based on the
difference in areas of the rod and bore.
BACK-UP
Move data from the working area of memory to a microchip that is stored elsewhere e.g. in a service
department.
BOOM DEFLECTION
The change of radius due to the bending of a boom under load.
BOOM MOMENT
The turning moment around the boom pivot caused by the moment of the unladen boom.
BORE
The piston side of a boom hoist cylinder.
CALIBRATION
The adjustment of the graduation of sensors.
CAPACITY CHART
A table showing the rating of a crane.
CENTER OF GRAVITY
The point at which the entire weight of a body may be considered as concentrated so that if supported at
this point the body would remain in equilibrium in any position.
COMMISSIONING
Preparing to be put into service.
CONFIGURATION
An arrangement of the lifting elements of a crane.
CURSOR
A pointer on a display which indicates the position where data is to be entered.
DATA
Factual information used as a basis for calculation.
DECREMENT
The action of decreasing a number or value.
DEDUCT
A reduction in rated capacity for an
unused
stowed or erected attachment.
DEFLECTION
The bending of a boom or the stretching of pendant lines within the elastic limits of the boom or
pendants.
DIGITAL
Operating with numbers expressed directly as digits.
DIGITAL INPUTS
Computer inputs which usually are either on or off as determined by external switches.
DIRECTION
The direction of rotation of the superstructure.
DUTY
A working configuration on a crane usually contained in a single column of a capacity chart.
EEPROM
Electrically erasable and programmable "read only" memory. (ROM)