Fluke Datapaq Reflow Tracker User Manual page 43

Surveyor
The stability of an oven's performance is typically monitored by recording the
temperature profile experienced by a standard PCB (a 'golden board') as it
passes through the oven – but this can be misleading, as changes in the golden
board over time can themselves result in changes in the temperature profile
recorded. Instead, the Surveyor system monitors the oven stability by running a
standard instrumented carrier frame through it to gather temperature data as
a survey profile run. The Insight software then automatically compares the
results of this profile run with results from an existing temperature profile
obtained when the oven was known to be operating correctly – a baseline
survey. By this simple means, an operator can assess quickly whether or not
maintenance or adjustment of the oven settings is required in order to maintain
consistency. Temperature measurements are recorded by a Datapaq logger, in a
thermal barrier, mounted on the carrier frame.
All profile-run data is saved automatically and quickly becomes a valuable
database upon which longer-term analysis can be conducted in order to highlight
trends in the performance of your process, and thus to identify and deal with
potential problems before they occur. This is carried out simply and quickly by
the Insight software using Statistical Process Control (SPC) analysis (see
p. 49).
Setting up and using Surveyor involves the following stages:
1. Configure your oven for optimum performance – Your oven must be
set up correctly, and producing defect-free product. Analysis with the
standard Datapaq Reflow Tracker system will assist in achieving optimum
results.
2. Conduct a baseline survey – In Insight, using Surveyor's Technician Mode
(see p. 47), run a temperature profile and obtain a baseline survey
(p. 48). This will be used as the reference against which future runs will be
compared. You then specify permissible tolerances from the baseline survey.
3. Train operators to perform routine profiles – Using the Operator
Mode, Surveyor will guide the operator through a profile run and compare
the results with the baseline survey (p. 48). The operator will be given a
simple pass/warning/fail result.
4. Identify trends – Use SPC to analyze a series of profile runs (p. 49) and
thereby predict future oven performance.
REFLOW TR ACK ER
Insight Reflow Tracker Professional only.
43
Surveyor