The challenge
A Southeast Texas chemical facility was using an older style Trip Amplifier card system to maintain safe process values for their plant that was quickly going out of date.
Trip amplifiers, or Trip Amps, take analog values and convert them to a discrete signal output. These Direct Current Alarm cards, originally manufactured in the 90’s, receive signals from instrumentation in the selected values. While this system served the plant well for many years, because of its age, replacement parts were becoming difficult to find, and the system was quickly becoming obsolete.
AllianceEPC was able to provide front-end project planning to evaluate multiple SIS equipment manufacturers so that the client could select which manufacturer they preferred and obtain capital funding to implement the project.
Once manufacturers were selected and funding was approved, AllianceEPC was able to coordinate and successfully complete the detailed engineering and design phase of the project.
the Results
- AllianceEPC developed a complete construction package divided into tasks that could be completed ahead of the site’s scheduled turnaround time to allow for minimal work that needed to be completed during the actual turnaround timeframe
- Updated hundreds of existing instrument loop diagrams to depict the new landing points inside of the new SIS system
- AllianceEPC provided onsite construction support so that the client could devote their resources to other tasks during turnaround
