Can the SONASCREEN 2 record measurement series, long-term measurements, and automatically triggered measurements?

Yes. The SONASCREEN 2 provides several functions for structured and automated recording of measurement data:

• measurement series
• long-term measurements
• triggered recordings

These functions can be used both to organize multiple related individual measurements and to record acoustic changes over extended periods.

What is a measurement series?

The Measurement Series function can be used to organize several consecutive measurements together.

When starting a measurement series, a name is assigned to the corresponding folder. All subsequent measurements are then automatically stored using the defined name.

This makes it easier to assign several measurements to the same system, inspection task, or investigation.

What is a long-term measurement?

The Long-Term Measurement function enables recordings over very long periods, for example:

• days,
• weeks, or
• months.

The recording interval can be set between 20 seconds and 900 seconds (15 minutes).

The resulting measurement works similarly to an acoustic time-lapse recording.

For each interval, the following data are stored:

• an averaged acoustic image,
• an acoustic peak-hold image,
• an averaged spectrum,
• a peak-hold spectrum,
• a camera image.

This makes it possible to monitor changes in the acoustic situation over extended periods without continuously storing every individual acoustic frame.

What is the trigger function?

The Trigger function allows the SONASCREEN 2 to automatically start and save a measurement when a defined acoustic event occurs.

A recording can be triggered by:

• a defined trigger level, or
• a defined spectrum curve.

The user can also define:

• the time period to be stored before the trigger event,
• the time period to be stored after the trigger event,
• which measurement data are to be recorded.

This makes it possible to capture short or irregular acoustic events specifically when they occur.

When are these functions useful?

These functions can be used, for example, for:

• monitoring acoustic changes over an extended period,
• recurring measurements on the same system,
• investigating sporadically occurring noises,
• capturing short acoustic events,
• comparing different operating conditions.

The most suitable function depends on the inspection task and whether measurements are required regularly, over a long period, or in response to a specific event.