Fluke Datapaq Reflow Tracker User Manual page 39

Supplying data for four aspects of the desired profile shape is optional: Overall
Profile Slopes, Ramp, Soak and Spike. For each of these, check the box to
enable the setting of their parameters (this is disabled by default).
• Overall Profile Slopes Specify the maximum permitted heating slope
(rate of temperature increase) for the profile (default 4.0°C/s) and the
maximum permitted cooling slope (default −4.0°C/s; a negative value must
be entered). If you wish, enter a single target value for the heating slope
(default 2.0°C/s).
• Ramp Define the temperature range (default 25–150°C) for the ramp
phase (the initial rise) of the desired profile, and its target slope (default
2.0°C/s).
• Soak If the desired profile is to have a soak (plateau) phase, define the
temperature range (default 150–200°C) for the soak phase, and its
permitted range of duration (time) (default 1–3 mins).
When 'Soak' is checked, the process limits will create a ramp/soak/spike
profile. When unchecked, the profile will be a simple tent profile. The
pictures in the dialog indicating the general profile shape, and the section being
• Spike Define the temperature (default 225°C) which should mark the
bottom of the spike phase (the final rise) of the desired profile, and its
target slope (default 2.0°C/s). (The desired peak temperature of the
profile is specified later in the dialog under the 'Reflow' section.)
• Reflow Define parameters for the reflow phase of the desired profile (the
period above liquidus): the permitted range for peak temperature (default
225–245°C), the liquidus temperature (default 217°C, for lead-free
solder) and the permitted range for time above liquidus (default
1–1.5 mins). If you wish, enter a single target value for peak temperature
(default 250°C) and for time above liquidus (default 1.5 mins). If you enter
data for time above temperature, the Reflow Results analysis of the
predicted profile will show the time spent above the given temperature by
each probe.
• Line Speed If a single line speed is specified, it will be used for all predicted
profiles (default 60 cm/min or 24 in./min). To produce predictions based on
a range of line speeds, check Use Optimized Line Speed and enter
minimum and maximum values (default 45–75 cm/min or 11.8–35.4 in./min).
After clicking Next in this dialog, you will be prompted to save your data as a
process limits file. The filename will be saved with a .RPL extension. There is
a default directory in which files are stored, but you can browse to a directory
of your choice.
REFLOW TR ACK ER
specified, change accordingly.
Easy Oven Setup
39