← Course contents · Part 6

· Visual lesson · Session 46 of 56


Who notices the leak

A leak detector can work while the notification fails. Follow the signal all the way to the person expected to act.

Picture the idea

Trace the page to a person

  1. Sensor

    Wet, dry, and supported fault states

  2. Controller and monitoring

    Location, timestamp, freshness

  3. Notification service

    Correct route and escalation

  4. Responder

    Acknowledges and follows the procedure

Test the approved path end to end. Remote notification is separate from local equipment protection.

Cover the right places

A spot sensor detects liquid at its location. A sensing cable covers a route. Both need suitable placement and compatibility with the fluid.

Also distinguish “dry” from “sensor disconnected.” Fault-reporting capability varies, so document what the selected detector can actually detect.

Send a useful message

“Input 3 active” is not enough. Include the site, rack, location, time, procedure, and responsible team.

Keep remote notification separate from local equipment protection. A dashboard is not the safety system.

An approved acceptance test should check delivery and supported fault reporting. Qualified staff must use the manufacturer’s test method.

Try it yourself

Draw the notification path. Beside each connection, write how you would notice its failure.

Check your answer

Consider sensor supervision, controller reachability, fresh data, notification delivery, and acknowledgement. One heartbeat cannot prove the whole chain. Record who received the approved test alert and how long it took.

Sources and further reading

← All sessions