USP Water Purification/Batching System.

SUMMARY:

Replaced the existing control system on a pharmaceutical USP water purification system with a new PLC/HMI based system allowing password security and access, operator interface for setup, process parameter configuration and alarm annunciation. System controls monitored various quality devices (rupture disks, filter pressures, temperature and UV status) as well as conductivity and TOC. 

DESCRIPTION:

The process takes incoming city water, purifies it through various filter beds, UV treatment, and sub-micron particle filtration to make USP grade water for manufacturing pharmaceutical products. After the water is cleaned, it is stored in a reservoir that maintains constant water circulation. Operators select a destination tank, batch size and dispense temperature, and the system will dispense the correct water volume at the correct temperature. 

Various control parameters are entered into displays that provide upper and lower control limits for various system analog devices. The system is completely self-monitoring, and when a problem is determined to exist, the system will disable various processes (Rinsing, Batching and Sanitizing) until the problem is corrected and acknowledge.