SOUND DETECTAI USER MANUAL
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9-1 General Usage
When using the battery pack, keep the
battery pack inside the carrying bag and
carry the bag with the strap over the
shoulder and across the body to free up the
hands for using the device.
9
Device Usage Techniques
CONSULT YOUR SAFETY OFFICER ABOUT
USING THE DEVICE AND THE CARRYING
BAG WITH THE STRAP IN YOUR FACILITY
OR WORKING ENVIRONMENT. THE STRAP
IS RIGID AND DOES NOT HAVE A SEPARATE
SAFETY RELEASE MECHANISM, SO
SPECIAL CARE SHOULD BE USED AROUND
HEAVY MACHINERY.
When not in use the device should always be placed securely inside the carrying
bag to prevent it from falling. Always put the device inside the carrying bag when
both hands are need for other tasks, such as climbing ladders. Ensure that the
camera is placed in such a way inside the bag that it does not fall out.
Use the lanyard to prevent accidentally drops. Do not carry or lift the device by
the lanyard. Always carry the device by the handle or the chassis.
Always keep the USB port covered. Water must not enter the device, as this will
damage the electronics inside.
Protect the microphone array at all times.
Do not touch the video camera lens or the conical microphone holes.
9-2 Inspection Techniques
9-2-1 Frequency Filters
Filters are useful for locating different types of sound sources by limiting the
frequency range of sound sources displayed on screen. Background noise,
e.g. traffic or factory noise, is often dominant at low frequencies, while many
interesting phenomena have higher frequencies. Typically,
the higher the
frequency range is, the more local the sources of interest are - even in the
presence of a lot of background noise.
The device marks the highest frequency with a crosshair. It is best practice to
do more in-depth analysis on the marked region as this can indicate a leak or
discharge.
