CHAPTER 3: USING PROGRAMMING FUNCTIONS
UNIFLOW
®
4 PULSED HEAT CONTROL
3-6 990-908
Schedule Setup Parameters
The Schedule Setup screens are accessed
by pressing the GRAPH key.
Pressing the
GRAPH key when the Graph
screen is displayed will change the
display to the
Schedule Setup, Page 1 of
5
. This screen contains parameters for
the Main thermocouple and the
temperature the Control is controlling.
< SCHEDULE SETUP, Page 1 of 5 >
1. ENABLE PEAK AND AVG LIMITS : OFF
2. PREHT PEAK TIME DELAY : 00.0 SEC
3. PREHT AVG TIME DELAY : 00.0 SEC
4. PREHT PEAK HI TEMP LIMIT : +030 C
5. PREHT PEAK LO TEMP LIMIT : -030 C
6. PREHT AVG HI TEMP LIMIT : +030 C
7. PREHT AVG LO TEMP LIMIT : -030 C
8. REFLOW PEAK HI TEMP LIMIT : +030 C
9. REFLOW PEAK LO TEMP LIMIT : -030 C
0. REFLOW AVG HI TEMP LIMIT : +030 C
<. REFLOW AVG LO TEMP LIMIT : -030 C
Number Select, Page, Graph / Data
Press the
1
key to toggle
ENABLE PEAK AND AVG LIMITS
to between
ON
and
OFF
. If set to
ON,
then the
Control will monitor temperatures and trigger an
Out of Limits
if the peak and/or average temperature is
outside the set limits. If set to
OFF,
the Control will not monitor any peak or average temperatures.
Item 2 on the menu,
PREHT PEAK TIME DELAY
, allows the operator to set the Control to ignore the first
part of the Preheat process cycle when selecting the peak Preheat temperature. This parameter can be
set from 0 to 99.9 seconds. If this parameter is set equal to or greater than the Preheat Time, then the
Control will not evaluate any peak temperature error, and will use 0C as the Preheat Peak Temperature
for display and communication.
Item 3 on the menu,
PREHT AVG TIME DELAY
, allows the operator to set the Control to ignore the first
part of the Preheat process cycle when calculating the average Preheat temperature. This parameter can
be set from 0 to 99.9 seconds. If this parameter is set equal to or greater than the Preheat Time, then the
Control will not evaluate any average temperature error, and will use 0C as the Preheat Average
Temperature for display and communication.
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