When the HMI screen goes down at the pump station, what is the recommended action?

The recommended action of asking the operator to monitor while troubleshooting is critical because it ensures that operations can continue to run smoothly and safely even if there is a temporary failure of the Human-Machine Interface (HMI) screen. The operator can keep an eye on the pump station's status, monitor any alarms or irregularities, and take necessary steps to ensure that there are no adverse effects on the system while the HMI issue is being addressed.

This approach maintains operational awareness and allows for immediate responses to any issues that might arise during troubleshooting, such as unexpected changes in operational parameters that could lead to equipment damage or safety hazards. Continuity of monitoring is essential in a pump station environment, where any interruption could lead to increased risks or operational challenges.

Other options may not provide the same level of immediate oversight. For example, repairing the HMI immediately could take time, which could result in missed alarms or potential issues if the operator is not monitoring the situation. Shutting down the pump may not be necessary if the pump can continue to run safely while the HMI is being troubleshot. Calling for technical support may delay response time and leave the system unattended during that period, further increasing risks. Hence, maintaining active monitoring by the operator is the most effective response