Which measurement modes are available on the SONASCREEN 2 and what are they used for?

The SONASCREEN 2 provides four measurement modes for different inspection tasks:

• Standard
• Professional
• Compressed Air Leakage
• Partial Discharge

Personalized profiles can also be created for recurring measurement tasks using predefined settings.

Standard mode

Standard mode provides the basic functions of the acoustic camera in a clear and accessible interface.

It is particularly suitable for general measurement tasks and for users who do not require the extended analysis functions of Professional mode.

Settings include:

• frequency range,
• measurement distance,
• acoustic scaling,
• dynamic range,
• audio and ultrasonic playback.

The acoustic image is combined with the optical camera image. Global and local frequency spectra are also available.

Depending on the settings, acoustic and infrared measurement information can also be displayed.

Professional mode

Professional mode extends Standard mode with additional analysis functions.

In addition to the basic measurement functions, it provides features including:

• spectrogram,
• time markers within a measurement,
• detailed visualization of the frequency spectrum over time,
• adjustment of time, frequency, and level axes,
• different screen layouts.

This mode is particularly suitable for detailed inspections and further analysis of complex acoustic events.

Compressed Air Leakage mode

Compressed Air Leakage mode is specifically optimized for quick localization and assessment of compressed-air leaks.

The software supports data acquisition using a color-coded measurement box:

• Red: no leak detected
• Yellow: leak detected – keep the leak within the measurement box
• Green: sufficient measurement data collected

After a successful measurement, the volumetric flow and resulting leakage costs can be displayed live.

The measurement can then be stored in a format suitable for further processing in LeakReport.

The frequency range is already optimized for this application. Adjustments can be made via the corresponding profile if required.

Partial Discharge mode

Partial Discharge mode is specifically optimized for locating and analyzing electrical partial discharges.

A color-coded measurement box also supports data acquisition:

• Red: no partial discharge detected
• Yellow: partial discharge detected – keep the sound source within the measurement box
• Green: sufficient measurement data collected

A live PRPD diagram is displayed during the measurement.

PRPD stands for “Phase Resolved Partial Discharge” and displays the acoustic events in relation to the phase of the line voltage.

The measurement can subsequently be stored in a format suitable for PDReport, where it can be analyzed and documented further.

This mode also uses a frequency range optimized for the application.

Which measurement mode should be used?

As a simplified guide:

• general acoustic measurements: Standard
• detailed analysis and extended measurement functions: Professional
• locating and assessing compressed-air leaks: Compressed Air Leakage
• locating and analyzing electrical partial discharges: Partial Discharge

For recurring inspection tasks, customized profiles with predefined measurement settings can also be created.