Industry
Water & Wastewater
CASE STUDY:
Excela™ – Pump Monitoring and Control
Solution
Excela Pressure Switch
Key Results
Affordability
Operational Visibility
Increased Uptime
Challenge
Since its inception, a water treatment facility has used mechanical switches on its pumps for high and low-pressure alarms and shutdown. The user was starting to experience some operational and maintenance challenges from the pump instrumentation:
- High frequency of false alarms indicating abnormal pressure, disrupting the operation of the pumps which led to unnecessary operational downtime of the facility.
- Lack of visibility regarding pump process data, as the mechanical switches could not relay information like pump inlet/outlet pressures. It was difficult for the maintenance team to know if the switches were functioning properly.
- Cost: The water treatment facility budgeted a plan to upgrade these mechanical switches to transmitters, but the device cost of transmitters exceeded their budget.
Solution
UE’s Excela electronic switches. Here are several features and benefits of the Excela that solved the user’s challenges:
- Integrated trip filter: The Excela reduced the occurrence of spurious trips on pumps and increased operational uptime of the facility.
- Integrated display with maximum/minimum values recorded: Operator can verify pump pressure and track extreme values of pump pressure abnormalities.
- Device self-diagnostics: Error codes related to possible causes let the operator know when device is malfunctioning and why.
- Budget: Operator gets the affordability of a switch and the maintenance/operational efficiency of a transmitter
Electronic switch mounted on pump systems in a water facility 
