Instruction Manual

Operation 6-1
6 Operation
6.1 Overview
Before operating your Century C-740/C-741 Dispensing System, it may be helpful to familiarize yourself
with the basics of how the system works. This section covers the following topics:
•
Basic System Operation • Dispensing System Controls
•
Conformal Coating • Pneumatic Regulators and Gauges
•
Detailed Operation • System Startup/Shutdown
•
Computer System • Conformal Coating Setup Procedures
•
ECXP Software • Loading a Program
•
Dispensing Operations • Running a Program
•
Conveyor Operations • Production Statistics
" NOTE In this section, typical Century C-740/C-741 configurations are considered. However,
operational details may vary with the configuration of your system.
6.2 Basic System Operation
The C-740/C-741 Series Dispensing Systems provide consistent, uniform dispensing of solvent-based and
100-percent solids materials for both inline (C-740) and batch (C-741) coating applications. Easy Coat for
Windows XP (ECXP) software controls both the robot movements and the dispensing operation.
The C-740 has a chain conveyor, which carries the workpiece from an upstream machine, to a dispensing
station where fluid is dispensed, and then delivers the processed workpiece to a downstream machine.
Instead of the conveyor, the C-741 batch dispensing system includes an aluminum tooling plate or
adjustable tooling rails. The tooling plate is easily removed for modification. Workpiece fixturing is
customer-supplied. The adjustable tooling rail option is ready to accept boards with a 3mm or greater
edge clearance.
6.3 Conformal Coating
The Century C-740/C-741 Series Dispensing System is designed to apply conformal coating materials
with a high level of flexibility and consistency. Conformal coating is a material that is applied to a circuit
board to provide protection from chemical and mechanical damage.
Applying conformal coating is a two-step process. Dispensing the conformal coating is the first step.
After the conformal coating has been applied, it must be cured. The curing method depends on the coating
material. Most materials are cured by one of the following processes:
• Heat (infrared), using an infrared or convection oven
• UV (ultraviolet) light, using a UV oven
• Moisture (humidity), using ambient conditions or a humidity controlled environment