Tank & Valve

Overflow Shutoff

Configure Overflow Shutoff in HPzenAi Smart. Closes the inlet path before water spills from the tank.

What it does

Close the inlet before the tank overflows.

Closes the inlet path before water spills from the tank. Use this automation when the selected field devices should work together without repeated manual setup.

CategoryTank & Valve

Works with

Level SensorsValvesRelay Controllers

Automation Logic

When

Trigger

Tank level reaches the high or overflow protection point.

Default

Tank level reaches 95%

Choices

Tank level reaches90%95%100%Enter value

Example: choose "Tank level reaches" and keep the default 95%, select another preset, or enter another value.

If

Condition

The inlet valve is open or the fill path is active.

Default

No condition

Choices

No condition

Example: leave No condition selected when the trigger alone should run the workflow.

Then

Action

Close the inlet valve or stop the fill command.

Default

Close the inlet valve and alert me

Choices

Close the inlet valve and alert meClose the inlet valveOnly notify me

Example: choose "Close the inlet valve and alert me" for the default then behavior.

Active

Allowed Time

Use All day for overflow protection.

Default

All day

Choices

All dayDay (6 AM - 6 PM)Night (6 PM - 6 AM)

Example: keep All day for protection workflows, or choose Day or Night when operation should stay inside site hours.

Automation Details

Recommended use

Any tank using valve-controlled filling.

Device Inputs

Level Sensors, Valves, Relay Controllers

Output Behavior

Close the inlet valve or stop the fill command.

Safety Note

Place the shutoff threshold below the physical overflow outlet.

Test Method

Simulate a high tank level and confirm the valve closes without delay.

Visual reference coming soon

Future screenshot area for the Overflow Shutoff setup screen and saved Smart card.

Overflow Shutoff Walkthrough

Walkthrough video coming soon

Before You Start

Device Readiness

Link every device used by this workflow and confirm each one is online.

Device Selection

Choose the exact tank, pump, valve, relay, or meter that should be controlled.

Safe Test

Test with safe thresholds or manual observation before leaving the workflow enabled.

Guided Setup

Set Up Overflow Shutoff

Step 1 / 12

9:41

1

Open the HPzenAi app.

Step 1 / 12

Commissioning Checks

• Confirm the valve opens and closes at the expected tank condition.
• Simulate a high tank level and confirm the valve closes without delay.
• Confirm the saved card shows the correct workflow, devices, schedule, and enabled state.
• Review the event history after testing so the action is recorded as expected.
• Keep safety-critical workflows active all day unless the site needs a specific time window.

Troubleshooting

• If the Save button is disabled, complete every required trigger, condition, action, and timing field.
• If the workflow does not run, confirm the devices are online and the active time allows it to run now.
• If the action does not complete, check whether the target device is already in that state or cannot accept commands.
• If notification behavior is missing, confirm phone notification permission and recent device data.

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