SOUND DETECT & SOUND DETECT PRO USER MANUAL
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8-12 Transient/Steady-state Modes
In the transient mode, the equipment has a very fast response speed to the
transient signal and can quickly respond to the change of sound source. It is
suitable for locating rapidly changing sound source models, such as partial
discharge sound source.
In the steady-state mode, the equipment will reduce the response speed to
the signal, and the cloud image will be relatively stable. It is suitable for the
observation of stable signals.
By default, the acoustic device is in the steady-state mode.
Change the mode as follows:
1.
Using the touchscreen, tap the Display Window to open the main menu.
2.
Tap the Acoustic icon. A window appears.
3.
Toggle Steady to the OFF position by tapping the switch to enter Transient
mode. The switch turns gray when in Transient mode. Enable Steady mode
by tapping the switch again. The switch turns blue when Steady-state
mode is active.
4.
Tap outside window to exit the Acoustic window. The main menu closes
automatically due to inactivity.
8-13 Ultrasonic Monitoring
The equipment can modulate the signal in the ultrasonic frequency band to the
audible frequency band, and can monitor the signal with headphones.
Ultrasonic modulation is uses superheterodyne receiver to convert signals to a
fixed intermediate frequency which can be more conveniently processed than
the original carrier frequency. The reference frequency of modulation can be
set by the user. ICI recommends a frequency band of about 38.6khz for near
modulation and monitoring.
Change the monitoring frequency as follows:
1.
Using the touchscreen, tap the Display Window to open the main menu.
2.
Tap the Acoustic icon. A window appears.
3.
Tap Monitor.
4.
Toggle Switch to the On position by tapping the switch. The switch turns
blue when enabled. Disable the feature by tapping the switch again. The
switch turns gray when inactive.
5.
Press-and-hold on the slider; then, drag left or right to adjust the frequency.
6.
Tap outside window to exit the Acoustic window. The main menu closes
automatically due to inactivity.
