Nordson Asymtek Spectrum Series Installation, Operation & Maintenance Manual page 231

Icons: Small buttons on a computer screen with a
symbol representing the function that they perform.
Used to execute a menu shortcut.
Impingement Flowmeters: The Impingement
Flowmeters control the airflow through the
Impingement Heaters in the dispensing chamber.
Impingement Heaters: Heaters tooling that does not
come into contact with the part carrier, but blows hot air
up at the part.
Interlock: The Interlock is a built-in safety feature that
automatically removes dispensing system servo motor
power, stopping all dispensing activity, when the hood
is opened. This prevents personnel from being injured
by movement of the dispensing head and conveyor.
Jet: A Fluidmove-controlled non-contact fluid dispenser
that provides high-speed delivery and exceptional
volumetric control for various fluids, including surface
mount adhesive, underfill, encapsulants, conformal
coating, UV adhesives, and silver epoxy. It is excellent
for substrates that may be compromised by contact
dispensing.
kPa: Kilo Pascals. Metric unit of pressure measurement.
Laser Height Sensor: The non-contact Laser Height
Sensor provides high-speed dispense height
measurement for delicate substrates, hybrids, and
integrated circuits that may be compromised by tactile
sensing.
LCD: Liquid Crystal Display. This type of display is
used in the computer monitor.
Lead Frame: A type of workpiece carrier where
multiple workpieces are imbedded in a metal tape.
LED: Light-Emitting-Diode. A semiconductor that
emits light. The materials used in the diode determine
the color of light. Functions as a system status indicator
and as an element in the Camera light source.
Levelers: Four adjustable pedestals (feet) on the bottom
of the dispensing system.
Lift Height: The height that the workpiece is lifted by
the Lift Table at the dispense station of the Conveyor.
Lift Table: Lifts the workpiece a set height at the
dispense station of the Conveyor.
Light Beacon: A safety device with colored lights and
an audible alarm that is attached to the top of a
dispensing system. It is part of the Safety Interlock
System.
Linear Encoders: Device mounted on each axis that
keeps track of the actual Dispensing Head position.
Lockout/Tagout (LOTO): The locking and tagging of
equipment during service and maintenance procedures
to help avoid injury or dispensing system damage due to
unexpected energizing of equipment, start up, or the
release of stored energy.
Glossary
Low Air Pressure Alarm: The Low Air Pressure
Alarm sounds when the system air pressure is too low.
Low Fluid Sensor: A device that triggers a Light
Beacon display or software error message when the
fluid level is low.
Low Pressure Detection Threshold: The air pressure
level at which the FmXP software will issue an on-
screen low air pressure error message.
Machine Offsets: Programming a dispensing sequence
relies on using the camera. Dispensing is accomplished
with the needle or nozzle. Camera-to-Needle and
Camera-to-Height Sensor Offsets need to be established
prior to dispensing.
Main Circuit Breaker: The Main Circuit Breaker is the
main power switch for the dispensing system. It protects
the dispensing system from facility power surges and
controls the flow of facility AC power supplied to the
Power Manager. A flange to the right of the Main
Circuit Breaker allows it to be locked in the OFF
position during servicing. Switching OFF the Main
Circuit Breaker cuts power to all dispensing system
electrical components.
Maintenance: Planned or unplanned activities intended
to keep the dispensing system in good working order.
Mass Flow Calibration (MFC): Mass Flow Calibration
is a patented feature that enables the user to specify the
mass to be dispensed as a separate parameter within the
dispensing elements. This is made possible by using a
high precision scale to take flow rate measurements.
Material Safety Data Sheet (MSDS): Information
sheet for the safe usage of a specific material. It is
provided by the material manufacturer and is usually
included in the material packaging.
Needle Heater: The Needle Heater is an RTD-
controlled heating element that provides needle heat on
the DV-7000 and DV-8000 Dispensing Valves and
nozzle heat for the DJ-9000 Dispense Jet. The Needle
Heater heats the dispensing fluid to maintain a
consistent viscosity and flowrate.
Needle Sensor Substrate: A ceramic pad near the
Needle Sensor that is dispensed upon during needle
location definition routines.
OEM: Original Equipment Manufacturer.
Operation: Functions, such as setting and manipulating
dispensing system controls, by which the operator
causes the equipment to perform its intended purpose.
Operator: A non-technical level position. The
production operator monitors and operates pre-
programmed dispensing systems during production runs
and performs minor routine maintenance.
Outputs: Electrical signals to control devices that must
turn On and Off on command.
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