Watlow ANAWIN 2 - Manual (Page 67)

Using the Trend Plot Screen
AnaWin User’s Guide 7-5
Threshold Controls
Use the following threshold controls to set up to three threshold levels.
Compute Now: Click Compute Now to compute the duration (in
seconds) above the threshold values and the peak temperature. Both
calculations apply only to data displayed on the graph.
Display on Graph: Select Display on Graph to display the threshold
levels on the trend plot. Deselect Display on Graph for no display of
threshold levels.
Threshold (#1, #2, #3): Use the Threshold fields to enter up to three
threshold values.
Profile Recording Controls
Use the following profile recording controls to define a profile—a
subset of plot data defined by when you start and stop recording.
Profiles are useful for oven performance comparisons.
Start: Click Start to start the profile recording.
Stop: Click Stop to stop the profile recording.
Offsets: Click Offsets to display the Reference Loop Setup window,
shown in Figure 7-3. Use this window to set up the offsets of reference
loops to be used for profile recording.
For example, consider a case in which T/C sensors are attached to a
board moving through a reflow oven. Offsets refer to the sensor
locations on a PCB relative to an arbitrary zero position.
When you are done setting reference loops, click OK to save your
settings and return to the Trend Extras window.
FIGURE 7-3 Reference Loop Setup Window