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Use of the Multi-Sensor 

The  multi-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.

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  housing 
diaphragm is designed to reduce 
external sounds while the sensor 
rests  on  a  hard  surface  and 
detects  the  vibrations  traveling 
underground.

When utilizing the multi-sensor for 
direct  connection  to  a  pipe,  or 
listening to buried pipes located 
in  soft  ground  or  under  a  turf 
surface, you will need to use the 
T-Handle and sound rods included 
with  the  unit.  Using  a  threaded 
spacer provided on the extension 
handle, carefully attach it directly 
onto the Multi-Sensor.  Assemble 
the  T-  Handle  by  snapping  both 
the extension handle and sensor 
handle sections together. Sound 
rods  are  then  secured  to  the 
threaded coupler on the T- Handle 
assy.  Sound  rod  lengths  will  be 
determined by its application.

Summary of Contents for XLT-17

Page 1: ...XLT 17 Operating Manual Liquid Leak Detector Test Equipment Depot 800 517 8431 99 Washington Street Melrose MA 02176 TestEquipmentDepot com...

Page 2: ...boratory has always been a leader in the field of acoustical leak detection From the early LT 10 through the XLT 30 high quality sound amplification has been synonymous with the Fisher name Fishers XL...

Page 3: ...3 INSTRUMENT SET 1 7 2 4 5 3 6...

Page 4: ...handle is used with the Multi Sensor 5 Sensor Cable This cable attaches at the back of the Control Housing to any of the various sensors including the Multi Sensor Make sure the jack is fully inserted...

Page 5: ...XLT 17 The arrow keys up arrow down arrow increase or decrease the audio signal to the headphones Use the headphone volume knob to reduce audio as desired MUTE As the name implies muting disengages th...

Page 6: ...the user to adjust the response in the higher areas of the frequency range Use the arrow keys to increase or decrease this frequency response range LO Low Range Similar to the previous filter mode the...

Page 7: ...play screen will show the volume level in a graph form 6 Begin your leak detection search Modifications During Leak Search Some leaks are small in size and unrecognizable or conditions are such that v...

Page 8: ...agm is designed to reduce external sounds while the sensor rests on a hard surface and detects the vibrations traveling underground When utilizing the multi sensor for direct connection to a pipe or l...

Page 9: ...requency from 150 Hz to 2 4 kHz High Pass Adjustable pass band frequency from 150 Hz to 2 4 kHz Band Pass Adjustable center frequency from 150 Hz to 2 4 kHz Output Indications Audio High performance h...

Page 10: ...that interference will not occur in a particular installation If this equipment does cause harmfill interference to radio or television reception which can be determined by turning the equipment off...

Page 11: ......

Page 12: ...8700725000 Rev 2 011211...

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