REFLOW TRACKER Basic Hardware 11
Basic Hardware
The standard Reflow Tracker system includes one or more thermal barriers and
appropriate thermocouples.
For use of the data logger, and for other special-purpose hardware,
see the documentation supplied with it.
Thermal Barriers
The thermal barrier provides the thermal and mechanical protection necessary
for the data logger to survive in the hostile environment of reflow, wave-solder,
vapor-phase and curing ovens.
A range of barriers is available to suit different loggers and different purposes.
Specifications of barriers to fit the Datapaq DP5 logger are given below; these
use Microtherm insulation for primary thermal protection.
WARNING
It is essential to use the correct Datapaq thermal barrier for your individual process,
as supplied and approved by Fluke Process Instruments. Failure to use the
appropriate approved barrier, or the use of a barrier in an unapproved manner (e.g.
using above the specified temperature, or for longer than the specified time, or with
insufficient opportunity for adequate cooling between profile runs), can cause
catastrophic damage to the data logger or to other equipment, can endanger
health, or (if lithium batteries are being used) may lead to severe injury or death.
For the same reasons, never use a damaged thermal barrier.
Ensure that all dimensions of your logger/barrier/accessory assembly are such that it
will fit comfortably within the oven through all stages of the process. Pay particular
attention to handles, catches, etc., and to trailing thermocouples. Failure to do this
can cause the assembly to jam in the oven with consequent overheating and
potentially-severe damage to the equipment. Resultant battery-leakage, and the act
of recovering the equipment, may cause skin burns and respiratory irritation.
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