Alarms and warnings handling

Boomerang system may observe if a reading from a given measuring point is within its predefined range and raise an alarm if the value is outside the limits.

The alarm limits may be defined as warnings or alarms.

A warning shall be defined with the limits that are still acceptable but outside the standard values. If warnings are observed, then the user shall check the equipment, or the location monitored for a possible reason of the deviation to prevent any future problems. This check may be not immediate as the conditions are still allowed but they are close to the limits.

The alarm conditions shall be set as the maximum or minimum allowed range limits. An alarm generated by Boomerang requires immediate user intervention.

Both warnings and alarms are defined in the same way. The differences between them are:

• the warnings are marked yellow and are inactivated automatically when the readings are back inside the limits,

• the alarms are marked red and must be signed by a user to inactivate them.

The description below refers to alarms only but is true for warnings as well. Warnings are mentioned only when they differ from alarms.

Alarm presentation

The active alarms are shown on the dashboard. If there are no active alarms the Measuring Points field is green.

The Measuring Points field colour is changed to yellow if there is any active warning and no active alarm. If there is any active alarm the Sensor Status field colour is changed to red. The number of the active alarms is displayed in the middle of the Sensor Status field.

Additionally, the left edge of the group field where there are alarms active is changed to red and the number of the active alarms is shown in the field on the right.

In the example below five active alarms exist in both groups shown.

To check the source of the alarm, click “Sensor Status” on dashboard to open “Sensor Alarms” list.

In the object view the active alarms are shown in the Activity log tab as described in Activity log tab.

More information about the alarms can be found in and chapters.

Alarm delivery

The Boomerang system may deliver information about an alarm event to a user by email, SMS or voice call or a combination of these methods.

There is also a dedicated Android app that can be used to observe the system status.

Boomerang can also signal an alarm activating a strobe light or another type of alarming equipment.

A module called B3 Web Panel (P/N WPAN-CTRLR) can display the summary of the measuring points' status on a monitor.

Example of an alarm email

Example of an alarm SMS

Signing an alarm

An alarm event will stay active until it is not signed by a user.

There are 5 active alarm events in every group in the example below.

Click the Measuring Points red button on the Dashboard to see the alarm details.

Click the checkbox on top of the checkbox column to select all the alarm events to sign them at once.

Click the checkbox on the event line to select a single alarm event you want to sign.

Click ‘Sign Alarm’ button.

Enter your username and password. You may optionally add a comment.

Click ‘Sign’.

The signed alarm events will disappear from the active events list and will be moved to ‘All’ events listing. In the example the active events after signing a single alarm look as below.

The signed alarms are shown in the activity log of the measuring point.

The warnings are auto signed by the system when the reading returns within the limits.