What does the green (or amber) light indicate on the HTST recorder controller?

The green (or amber) light on the HTST (High Temperature Short Time) recorder controller serves an important function related to the operation of the flow diversion device. Specifically, this light indicates that the forward flow position of the flow diversion device is in the correct setting for pasteurization. This is crucial because during the pasteurization process, it is essential for the system to direct the flow of the product through the heat exchanger and ensure that it is subjected to the appropriate thermal treatment.

When the flow diversion device is functioning correctly and in the forward flow position, it allows the product to flow through the system where it can be heated to the required temperatures and then safely packaged. The green or amber light serves as a visual confirmation for the operator, assuring them that the system is functioning as intended in terms of directing the product flow properly.

The other choices do not represent the function of the green or amber light effectively. For example, while the power status is important, it is usually indicated by a different signaling system. The temperature being within the acceptable range is typically reflected by separate temperature gauges or indicators, and any alerts concerning potential malfunctions would generally be indicated by warning lights or alarms distinctly designated for that purpose. Thus, the green or amber light