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6

FILTER

The XLT-17 has four different filtering modes.

 

AL (All Frequencies) –  This is the No Filter feature of the XLT-17.  No 

modifications to the audio can be made with the arrow keys.  Frequency 
range of the All Frequency setting is from 60 Hz to 6 kHz. This mode is often 
used to begin to listen for the leak noise. 

(The following filter modes are often used to pinpoint the location of the 
leak noise.)

 

HI (High Range) – This filtering mode allows 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 lowpass 

filter allows the user to listen to the lower areas of the frequency range.  
The arrow keys are used to increase or decrease this frequency response 
range.

 

FC (Frequency Choice) –  This filter could also be called Frequency 

Select.  This mode allows tuning to the frequency that gives the user the 
best audio response to the leak noise.  The arrow keys are used to move 
the cursor, selecting a narrow frequency band of choice.

CONTROL PANEL

 

 

 

 

 

 

 

 

  

 

 

 

 

   

 

 

   

 

 

 

 

 

 

   

 

 

 

   

 

 

 

 

 

 

 

 

 

   

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  

 

 

 

 

 

 

 

   

 

    

 

 

   

 

 

 

 

 

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   

 

   

   

 

 

 

 

 

   

 

 

 

  

 

 

 

 

 

   

 

 

  

 

 

 

   

   

 

 

  

 

 

 

 

 

 

 

     

 

 

 

 

 

 

 

 

 

 

 

 

 

   

 

 

   

 

 

 

 

 

 

 

 

 

 

   

 

 

   

 

   

 

   

   

 

  

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

   

 

 

 

 

   

 

   

 

 

 

 

 

 

 

 

 

   

 

 

 

 

 

  

 

 

 

 

 

   

 

 

 

 

 

   

 

 

 

 

 

 

 

 

 

 

   

 

   

 

 

 

 

 

 

 

 

   

 

  

 

 

 

 

   

 

 

 

 

   

 

 

 

     

 

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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