9
Use of the Notch Filter
Occasionally, you may come across a sound that may be
masking or covering your ability to adequately hear any leaks.
This may be caused by nearby motors, fans, or many other
annoyances. (Unfortunately, the most common are sounds
caused by automobiles and traf c). The XLT-30 has a notch, or
reject feature, that will assist in eliminating that sound from your
frequency range.
Press the NOTCH pad, and use the ARROW pads to move the
cursor to the point where the annoying sound is eliminated or at
its weakest. Depress the RESUME pad to set the notch function.
(Hint: Depress the FILTER pad to go directly to the FILTER mode.
Now you can choose the type of Filter you wish to use AND still
have the annoying sound Notched).
Use of the Multi-Sensor (OPTION B)
Unlike our other sensor, this new sensor was designed for locating
leaks in all types of surface conditions. The new sensor construction
will allow leak detection to be performed on hard surfaces such
as concrete, asphalt, tile, etc, as well as listening to water leaks
under turf or soft surfaces.
OPERATING INSTRUCTIONS
as concrete, asphalt, tile, etc, as well as listening to water leaks
On hard surfaces, the muti-
sensor sensor is used to pick
up the vibrations generated
by a buried ruptured pipe
located underneath sidewalks
or paved streets. The rubber
h o u s i n g d i a p h r a g m i s
designed to reduce external
sounds while the sensor rests
on a hard surface and detects
the vib rati ons trav elin g
underground.
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