1-8 Introduction
1.10.12.2 Controlled Process Heat
Nordson ASYMTEK’s Controlled Process Heat (CpH) software increases functional control that
eliminates operator interaction altogether. Software-managed heat levels are provided (e.g., warm up,
process ramp, cool down, etc.) with programmable shut-off timers and “step-down” or “no-heat”
capability when a part is not present. CpH control improves yield and “thermal footprint” efficiency by
requiring less power. See 5.15 Controlled Process Heat.
1.10.12.3 Needle/Nozzle Heat
The Needle Heater is an RTD-controlled heating element that provides needle heat on the DV-7000 and
DV-8000C dispensing valves and nozzle heat for the DispenseJet valves. The Needle Heater heats the
dispensing fluid to control the fluid temperature at the needle tip, protecting the rest of the fluid from
chemical reactions or property changes that can occur if the entire reservoir is heated. The DispenseJet
has dual-ended control allows the machine to ensure the correct fluid temperature regardless of ambient
machine temperature. Nozzle heating is integrated into the NexJet and IntelliJet assemblies and is
programmed in the Fluidmove software.
1.10.13 Height Sensor
The CCD non-contact Laser Height Sensor (LHS) is standard on all S2-900 systems. The LHS provides
high-speed dispense height measurement for components that may be compromised by tactile sensing.
Specialized circuitry automatically controls the duration of laser emission, preventing measurement errors
due to surface color and texture variations. Three LHS models are available. Contact Nordson
ASYMTEK to determine the best fit for your application requirements. An optional Mechanical/Tactile
Height Sensor is also available.
1.10.14 Interlock
The Interlock is a built-in safety feature that automatically removes dispensing system servo and
conveyor motor power, stopping all dispensing activity, when the hatch is opened. This prevents
personnel from being injured by movement of the dispensing head and conveyor.
1.10.15 Light Beacon
A highly visible light beacon indicates system status and can warn the operator when fault conditions
exist. The beacon has an audible alarm and four different color lights which can be constantly on (solid)
or flashing.
Software and hardware share control of the beacon lights. Sometimes hardware-driven displays override
those caused by software conditions, and vice versa. Safety critical conditions always have priority.
Flashing light software conditions have priority over solid light conditions. See 2.15 Light Beaconfor
additional information.
1.10.16 Low Fluid Sensor
1.10.16.1 Fluidmove Software Low Fluid Tracking
Fluidmove keeps track of material usage during the dispense operation if the initial syringe fluid weight
(mass) is entered in the recipe. Both low and critically low values can be monitored. When a low fluid
condition is detected, the light beacon is activated to warn the operator. Additionally, the Fluidmove
software displays user warnings for low fluid conditions in the Run Window.
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