Listen Button
Press Listen. The DLD audio processor turns on and listens for sound from the accelerometer.
![DLD Buttons](images/DLD_Op-1.jpg)
Volume Button
Press Volume. Volume level range is 1 to 29. (Default is 15.)
To select the desired volume:
• Press once to increase the sound by one step.
• Hold down the Volume button to increase DLD volume to the desired level.
Power Management
The DLD automatically turns off if a button is not pressed for 90 seconds.
|
|
Filters Button
Press the Filters button to select the desired precision filter setting:
• |
SEr |
Service lines |
• |
Con |
Hydrants, valves, etc. |
• |
SUr |
Survey work (default) |
• |
OPn |
No filter settings |
• |
Gnd |
Ground listening all surfaces
(asphalt, soil, etc.) |
DLD Settings
Setting |
Frequency (Hz) |
Open |
100 - 1800 |
Ground |
100 - 400 |
Service |
250 - 800 |
Contact |
300 - 1800 |
Survey |
150 - 750 |
Leak Analysis
While listening, the LCD shows the Leak Analysis number (the detected leak sound level).
![](images/DLD_Digital_Display.jpg)
Pressing Listen again, resets the Leak Analysis number. |
DLD Audio Processor Connections
![DLD Area 2 and 3](images/DLD_Op-4.jpg)
2. Accelerometer
3. Battery door
(requires 2 AA alkaline batteries)
![DLD Ground Spike/ Probe Assembly](images/DLD_Probe.jpg)
Ground Spike/Probe Assembly |
|
1. Headphone Jack
![Headphone Jack Location](images/DLD_Op-3.jpg)
![Grounf Listening Stick](images/DLD_ListenStick.jpg)
DLD Ground Listening
Stick Assembly |