CHAPTER 4: OPERATING INSTRUCTIONS
UNIFLOW
®
4 PULSED HEAT CONTROL
990-908 4-9
If you select Temperature for Preheat and Reflow Control, the Control will abort Preheat or Reflow if the
temperature has not reached the Delta temperature within the length of the programmed RISE1 +
PREHEAT time, or the RISE2 + REFLOW time. The Control will display the message ABORT REFLOW:
Heating Too Slow
.
If you select Time for Preheat and Reflow Control, the Postheat will begin at the Cool1 temperature and
last for the exact Postheat time you specified. The DATA screen will display the exact Postheat Time
you selected as the Postheat time.
If you select Temperature for Preheat and Reflow Control, heating for postheat will begin at the Cool1
temperature. Once a temperature equal to the Postheat temperature you selected, less the Reflow
Temperature Delta is reached, the Postheat period will continue for the exact Postheat time you
selected. The
DATA screen will display the time between Cool1 and the end of Postheat as the Postheat
time.
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