13
7. To enable the device play the voice recordings from the device speaker, click
Speaker Settings
, and then keep the
<
Headset voice recording playback
> toggle turned off. To adjust the volume, move the
Internal Speaker
Volume
slide.
8. To adjust the volume of the leakage sound, click
Speaker Settings
, and move the
Sensor Headset Volume
slide.
Note
: The leakage sound is converted from the ultrasound of the leak detected, and can be played only through the
headset.
9. To adjust the display brightness, click
Display Settings
.
10. To adjust the volume of pressing buttons, click
Beeper Settings
.
Note
: By clicking the
icon on the top left side, you can return to the home screen.
8
Procedures of conducting a leak survey
A leak detection project is managed by a “survey”. An OS 531 can work in non-LMS mode or LMS mode. The
procedures between these two modes lie in:
•
In the non-LMS mode, surveys are created in the OS 531.
•
In the LMS mode, surveys are created in the LMS and then downloaded to the OS 531. The leak records
detected by the OS 531 will be uploaded to the LMS for management.
8.1
Using the OS 531 in the non-LMS mode