CHAPTER 4: OPERATING INSTRUCTIONS
UNIFLOW
®
4 PULSED HEAT CONTROL
990-908 4-3
Section III: Graph and Data Screen Descriptions
Graph Screen Description
Graph Schedule Profile
A graphical representation of the
rogrammed temperature profile is
displayed in the upper left section of the
GRAPH Screen.
A thin solid line represents the
rogrammed temperature profile with
temperature on the Y axis and time on the
X axis. The line extends from the start of
Baseheat through the end of the Reflow
rocess cycle.
A separate solid thin line also represents the expected temperature plot for the Auxiliary thermocouple.
This line begins at the start of Rise1 and ends at the end of the Reflow process cycle.
Graph Actual Temperature and
Envelope Limits
A bold solid line represents the actual
temperature as measured by the Main
thermocouple.
A dashed solid line represents the actual
temperature as measured by the
Auxiliary
thermocouple. In the screen picture
shown to the right, the Auxiliary
thermocouple is plotted as a straight
horizontal line for illustrative purposes
only.
If the Envelope functions has been selected for the Main and/or Auxiliary temperatures in the Schedule
Setup
, then thin dashed lines will be displayed which represent the envelope for Rise1, Preheat,
Rise2, and Reflow.
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