A steam distributor includes multiple steam discharge chambers that are separated by laterally spaced apart partition panels that create corresponding profiling zones. A device receives an input signal, communicates with the low impedance input of the first circuit, and includes a variable resistor having a resistance that varies based on the input signal. The support posts inserted into one or more clearance holes in the PCB are configured to receive the one or more support posts. The method further includes the step of fitting a parameterized model to the measured reflectance property. Once ordered, the ordered test cases may be tested against a current design model, which results in test results, at least a portion of which updates the corresponding result record.