Problem:
This manufacturer provides a line of customer specific ASIC chips. It is critically important the wafers manufacturing process be done in a "clean room" and controlled environment. This includes temperature, humidity and particulate management.
Solution:
Chart recorders are used to record trends, but didn't supply enough dynamic information in a timely fashion if adjustments needed to be made in the clean room environments. The LED Displays provided the three critical variables, temperature, humidity and PPM of particulates present to quality control and other personnel.
Data Source:
Each clean room has its own HVAC and filtration system controller. Data from the serial port of the controller simply provided information to each LED Display via RS232.
ROI:
Savings were calculated to be over $2,500/day based on faster trend monitoring and awareness from the employees. Payback for the displays was less than 2 weeks.