Connectivity

Sensor-Loss Failsafe

Configure Sensor-Loss Failsafe in HPzenAi Smart. Prevents control decisions when a required sensor is unavailable.

What it does

Never pump blind when the sensor is gone.

Prevents control decisions when a required sensor is unavailable. Use this automation when the selected field devices should work together without repeated manual setup.

CategoryConnectivity

Works with

GatewaysWater MetersLevel SensorsValves

Automation Logic

When

Trigger

A required sensor stops reporting or goes offline.

Default

Level sensor goes offline

Choices

Level sensor goes offline

Example: choose "Level sensor goes offline" for the default when behavior.

If

Condition

An automation depends on that sensor for safe operation.

Default

Pump is running

Choices

Pump is runningNo condition

Example: choose "Pump is running" for the default if behavior.

Then

Action

Stop or block the controlled pump, valve, or relay until sensor data returns.

Default

Stop the pump and alert me

Choices

Stop the pump and alert meNotify me (critical)

Example: choose "Stop the pump and alert me" for the default then behavior.

Active

Allowed Time

Use All day for sensor-dependent 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

Tank fill, dry-run protection, and level-based pump control.

Device Inputs

Gateways, Water Meters, Level Sensors, Valves

Output Behavior

Stop or block the controlled pump, valve, or relay until sensor data returns.

Safety Note

Choose a conservative safe state for each controlled device.

Test Method

Simulate sensor loss and confirm the controlled device moves to the safe state.

Visual reference coming soon

Future screenshot area for the Sensor-Loss Failsafe setup screen and saved Smart card.

Sensor-Loss Failsafe 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 Sensor-Loss Failsafe

Step 1 / 12

9:41

1

Open the HPzenAi app.

Step 1 / 12

Commissioning Checks

• Confirm the notification or failsafe action happens when device communication changes.
• Simulate sensor loss and confirm the controlled device moves to the safe state.
• 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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