REFLOW TRACKER Reflow Temperature Profiles 19
Reflow Temperature
Profiles: Creation and Use
A temperature profile can be acquired by two means:
• Without telemetry – After the logger and product have been in the oven,
data is downloaded from the logger into the PC to be displayed and analyzed
by the Datapaq Insight software.
• Using telemetry – As the logger gathers data from the product inside the
oven, this is transmitted directly to the PC by a hard-wired connection
(serial telemetry) or by radio transmitter/receiver (radio telemetry). The
temperature profile can be watched developing as it happens, i.e. in real
time. For the use of hardwired telemetry, see your dedicated logger User
Manual. For radio telemetry, see the TM21 Radio-telemetry System User
Manual.
This chapter describes all the stages of obtaining a reflow temperature profile
for a PCB while it is in the oven, without telemetry – from how and where to
place the probes, to downloading the data into the software, ready to be
analyzed.
To run a temperature profile in a wave-solder oven, see p. 31.
Before running your PCB and the data logger through the oven you will use the
Insight software to reset the logger, i.e. to prepare it for receiving fresh data.
After the logger has been retrieved from the oven, you will use Insight again to
download the profile data and save it to disk.
In summary, the stages are as follows.
1. Choose positions for, and attach, the thermocouple probes.
2. Setup communication between the data logger and your PC (if this has
not already been done for a previous profile run).
3. Reset the data logger so that it is ready to receive fresh data; in the
process of doing this you will also be able to set the sample collection
interval and the method used to trigger the start of data collection, and to
check the logger’s battery status.
4. Install the logger in its thermal barrier.
5. Run the PCB and logger/barrier through the oven.
6. Download the data from the logger into the Insight software.
7. If necessary, set the oven start position within the data.
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