CHAPTER 3: USING PROGRAMMING FUNCTIONS
UNIFLOW
®
4 PULSED HEAT CONTROL
3-16 990-908
Good Reflow Counter
Press the 2 key to edit the good reflow counter. This option is the same as the total usage counter except
that only good reflows are counted. A good reflow occurs when the actual temperature is within all
enabled peak temperature, average temperature and envelope limits. When the counter reaches
9999999, it will change to 0000000 after the next process.
Clean Counter
Press the 3 key to edit the clean counter. The count that you enter will raise an alarm to signal the
operator to remove baked-on flux and other residues from the face of the thermode. Particle buildup
slows down heat transfer from the thermode to the parts. Use an initial Clean Thermode value that is
based on real factory operating conditions.
Pressing 1 will toggle CLEAN COUNTER
between ON and OFF. ON will activate
this feature and OFF will de-activate it.
Pressing 2 will toggle CLEAN COUNTER
ACTION
between STOP and CONTINUE.
When the clean counter value is reached,
STOP will require the Operator to reset
< CLEAN COUNTER SETUP >
1. CLEAN COUNTER : OFF
2. CLEAN COUNTER ACTION : STOP
3. EDIT CLEAN COUNTER : +000010
Number Select an item, Graph / Data
the clean counter before the Control will
run another process and the System Ready relay state will be inactive. CONTINUE will allow the
Control to perform additional processes even if the clean counter is not reset. If CONTINUE is
selected, the Control will continue to display the Clean Counter message after each process and the
System Ready relay state will be active.
Press 3 to edit the remaining counts before the Clean Counter must be reset. With the numeric keys, you
may select a number up to 999999.
Replace Counter
Press the
4 key to edit the replace counter. The count that you enter will raise an alarm to signal the
operator that it is time to replace the thermode. Thermodes ultimately fail due to repeated heat cycles
that cause internal cracking, slowing down heat generation in the thermode. In addition, repeated
heating cycles cause the thermocouple junction to oxidize and, eventually, break free of the thermode.
Use an initial
Replace Thermode value that is based on real factory operating conditions.
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