# Alarm resets and maintenance

> For the complete documentation index, see [llms.txt](https://docs.oriondata.io/llms.txt)

Automatic alarm resets, channel alert history and controls used during device maintenance.

It is intended for all users.

## How alarms work

Orion Data monitors your sensor channels continuously. When a sensor reading meets a configured condition, such as exceeding an upper threshold, dropping below a lower threshold, or falling within a defined range, an alarm is triggered automatically.

When an alarm triggers, a notification is sent to the configured recipients. Alarm notifications are delivered by email from [**no-reply@ewsaustralia.com**](mailto:no-reply@ewsaustralia.com) with the subject line **Data Alert**. Notifications may also be sent to a configured mobile number, depending on your alarm setup.

You do not need to acknowledge an alarm within Orion Data for its configured automatic reset to occur. Alarms reset automatically based on their configuration, either when the sensor reading returns to an acceptable value or after a defined time period has elapsed.

> **Note:**
>
> Always disable alarms before performing any maintenance, testing, or sensor changes on a device. Failing to do so may result in false alarms being triggered and notifications being sent unnecessarily.

## Locating alarm configurations

Alarm configurations are managed at the channel level within each device. To view the alarm configuration for a channel:

1. Open **Device Management** from the main navigation.
2. Select the device you want to review.
3. Navigate to the **Alerts** section within the device.
4. Click on the relevant channel to view its alarm configuration.

![Devices list filtered to one device by the search box, with an arrow to the arrow button in the Actions column](https://docs.oriondata.io/images/portal/alarms/how-to-acknowledge-or-resolve-an-alarm/devices-list-filtered-one-device-by-search-box-button-actions-column.png)

If an alarm has been configured for that channel, you will see the alarm settings displayed, along with two buttons below the configuration:

- **Alert** - displays the current alarm configuration details
- **Alert History** - displays a log of past triggered alarms for that channel

![Device Alerts tab with a soft sensor selected and the Alerts History view showing an empty table for the selected dates](https://docs.oriondata.io/images/portal/alarms/how-to-acknowledge-or-resolve-an-alarm/device-alerts-tab-soft-sensor-selected-alerts-history-view-empty-table-selected.png)

**Viewing alert history**

The **Alert History** view shows all alarms that have been triggered for a channel. By default, the history displays the past seven days. You can adjust this time range to view alarm activity over any number of days.

![Alerts History highlighted, with a table of triggered High and Low alerts including threshold, triggered value and message](https://docs.oriondata.io/images/portal/alarms/how-to-acknowledge-or-resolve-an-alarm/alerts-history-table-triggered-high-low-alerts-including-threshold-triggered.png)**Enabling and disabling alarms**

Each alarm configured on a channel can be individually enabled or disabled. This is useful when you need to temporarily suspend notifications, such as during device maintenance or sensor replacement.

To enable or disable an alarm, locate the **Alarm Enable** toggle within the channel alarm configuration and switch it on or off as required.

![Alert Wizard with an arrow pointing to the Alarm Enabled toggle](https://docs.oriondata.io/images/portal/alarms/how-to-acknowledge-or-resolve-an-alarm/alert-wizard-alarm-enabled-toggle.png)**Note:** Multiple alarms can be configured on a single channel. Each alarm has its own **Alarm Enable** toggle, so you can disable individual alarms without affecting others configured on the same channel.

## Alarm reset types

Alarms in Orion Data are configured with a reset type that determines when a triggered alarm clears. There are two reset types:

- **Reset by value** - the alarm clears automatically when the sensor reading returns to a value that no longer meets the trigger condition.
- **Reset by time** - the alarm clears automatically after a defined period has elapsed. This period can be set in minutes, hours, or days.

The reset type for each alarm is defined during the alarm setup. If you are unsure how an alarm is configured, refer to the alarm configuration panel for that channel.

## Getting further assistance

If an alarm does not trigger when the expected condition is met, or if you require assistance with your alarm configuration, contact EWS Australia directly for support.

## Summary

Alarms in Orion Data trigger automatically when sensor readings meet configured conditions and reset on their own based on the configured reset type. Alarm notifications arrive by email from [**no-reply@ewsaustralia.com**](mailto:no-reply@ewsaustralia.com) with the subject **Data Alert**. You can view alarm configurations and alert history for each channel from within **Device Management**, and individual alarms can be enabled or disabled using the **Alarm Enable** toggle.

## Next Steps

- Review the alarm configurations on your devices to confirm thresholds and reset types are correct.
- Disable alarms using the **Alarm Enable** toggle before performing any maintenance or testing on a device.
- Check **Alert History** for any channels showing recent alarm activity.
- Contact EWS Australia if an alarm is not behaving as expected.

## Related articles

- Setting up alarms on a sensor channel
- [Managing alarm recipients in Orion Data](https://docs.oriondata.io/portal/alarms/alarm-recipients-managing-who-gets-notified/)
- Understanding alarm reset types
- [Device list columns and export](https://docs.oriondata.io/portal/devices/the-device-list-finding-and-managing-your-devices/)