Manual

18 Operation
Changing Fluids
To change the Fluid to another Flux Application:
1. Properly drain the fluid lines (see “Draining the Fluid Lines” earlier in this section).
2. Remove the standard nozzle nut with the co-axial air nozzle nut as one unit, or separately as
applicable to your application.
3. Purge (flush, or clean) the DispenseJet as appropriate (see “Purging the DispenseJet” in the
Maintenance and Service section).
Shutting Down DispenseJet Operations
Follow the instructions in the applicable dispensing system manual for routine, service, and emergency shut
down of the dispensing system. When the dispensing system is not being used, an appropriate solvent may
be kept in the fluid lines to prevent residue buildup.
Application and Process Development
The Fluidmove software is used to program your flux applications. There are special dispensing patterns in
the Teach Window that apply to flux processes. The Fluidmove software will help you define the flux pattern
and film thickness. There are also variables for dot parameters and line parameters along with DJ-2200
micro-adjust, preload, fluid pressure, and co-axial air pressure data.

NOTE For flux applications, there is no need for speed settings. For additional flux applications and
process development, please contact Nordson ASYMTEK.

NOTE In the co-axial DOT mode, the air jets immediately after the fluid is dispensed onto the
substrate. In the co-axial LINE mode, the air jets simultaneously with the fluid jet being
dispensed on the substrate.
It is recommended that you record, at a minimum, the following hardware and software settings during the
process development (see Table 4-1).
TIP You may want to make a copy of this page for recording purposes.
Table 4-1 Minimum Recommended Parameters
Parameter Units of Measure Your Settings
Preload
Number of Turns
Micro-adjustment *
mm (inches)
Fluid Pressure
kPa (psi)
Valve Pressure
kPa (psi)
Co-axial Air Pressure
kPa (psi)
Dispense Gap **
mm (inches)
* Each line on the collar = 0.05-mm; one (1) turn = 0.50-mm
** In Dot or Line Parameters in Fluidmove