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AccuTrak

 VPE-2000

 

 

Getting Started (A condensed guide for those who 
hate to read manuals) 

 

OK, here it is.  A quick overview of the AccuTrak VPE-2000 written for those who 
will probably read nothing else.  This will give you a basic understanding of the 

unit’s  operation  and  function,  however  we 

STRONGLY  recommend  that  you 

read the complete manual.  Or, at the very least, continue to read the following 
section concerning the principles of operation.  

Leak Detection... 

Use the airborne sensor for detecting pressurized gas leaks and vacuum leaks.  
Remember, leaks must be turbulent to detect ultrasonically. 

1.  Insert  the  headset  jack  into  the  plug  on  the  side  of  the  instrument  (I.),  and 

push the power  button (D.). 

2.  Depress  the  mode  select  button  (F.)  until  the  alphanumeric  display  (A.N.D.) 

reads  “AIRH”  (This  stands  for  airborne  sensor  at  high  ultrasonic 

frequency) 

then press the 

 or 

 

to activate the airborne sensor (A.).  “AIRL”, or Low 

frequency ultrasonic is also available, and is activated the same way.  Once 
activated you will begin to hear a translation of any ultrasonic sound present 
in  test  area,  and  the  LED  bargraph  meter  will  display  the  strength  of  the 
corresponding  signal.    The  highest  LED  will  hold  its  place  for  5  seconds 
before resetting its position.  This will help guide you toward the leak, where 
the  sound  is  most  intense.    The  instrument  always  resets  itself  so  that 
sensitivity  is  the  active  mode.    If  the  LED  bargraph  meter  is  at  maximum, 

reduce  the  sensitivity  by  simply  pressing  “

“  until  it  reads  “10”  or  less,  then 

continue. 

3.  To adjust the volume, press the mode button once. The A.N.

D reads “VOL”.  

Then  use  the 

  and 

  buttons  to  make  the  adjustment.    The 

alphanumeric display will read “V 000”.  Volume, as with all numerical values, 

has a range of 0 to 255. 

4.  Listen for the leak.  A gas leak will sound like a harsh rushing noise, or high 

intensity hiss.  This sound will increase as the instrument is drawn toward the 
leak point, and will clearly disappear as the sensor is turned away. 

5.  For more detailed information on specific applications,

 

refer to page 10 of this 

manual. 

 

 

Summary of Contents for AccuTrak VPE-2000

Page 1: ...Model VPE 2000 User s Manual Superior Signal Company LLC www SuperiorSignal com...

Page 2: ...ptions 10 APPLICATIONS OVERVIEW 11 1 AIRBORNE APPLICATIONS EXTERNAL SOUNDS 11 Leaks 11 Methods of reducing background noise interference 12 Frequency Selection Airborne 13 Recording overall system noi...

Page 3: ...ch accurate readings and consistent results in repeatable tests The internal signal processing is performed by a patented process with additional patents pending This circuitry assures the reduction o...

Page 4: ...nsity display meter Shows relative strength of detected signal in a bargraph format D Power button Turns the instrument on or off E Alphanumeric Display A N D Level Mode Indicator Displays active mode...

Page 5: ...re facing the floor and the sensor is facing away from your body At the opposite end from the sensors the end closest to you there is a sliding panel Apply minimal pressure to the center of the panel...

Page 6: ...sonic is also available and is activated the same way Once activated you will begin to hear a translation of any ultrasonic sound present in test area and the LED bargraph meter will display the stren...

Page 7: ...ing or scraping in bearings 4 The VPE 2000 always defaults back to Sensitivity as the active mode therefore if your readings are off the scale simply press the to reduce the reading to within the rang...

Page 8: ...like motions Inside a tube where a gas may be flowing the flow is normally laminar which means that a given layer of gas does not mix with layers above it or below it This condition happens in a strai...

Page 9: ...VPE 2000 will begin the cycle again Setting the Sensitivity The AccuTrak VPE 2000 always defaults back to sensitivity as the active mode This means that after any other adjustment has been made it wil...

Page 10: ...ws Cont Continuous the A N D will show the level of the signal in real time Peak Peak Hold the A N D will hold the highest reading for 5 seconds Off Turns the alphanumeric display off with the excepti...

Page 11: ...il only the first one or two lights are lit on the LED bargraph meter Check around fittings flanges and all other suspected areas If at anytime the display is at maximum due to background noise in the...

Page 12: ...translation process of the AccuTrak helps you to distinguish the difference between the two signals Practice listening to different components of your system this will help you to identify problems fr...

Page 13: ...mpared to previous and future readings Although the AccuTrak will only record the ultrasonic range of a noisy system which we can t hear this part of the sound will increase in proportion to the sonic...

Page 14: ...effective The sound of most bearings comes alive in the Low range probe however very high speeds and or vibration sometimes make it necessary to use the High frequency probe Your experiences with you...

Page 15: ...y type of valve which may be leaking internally Are valves functioning properly When in the closed position are they truly closed Is the TXV clogged or iced Restrictions or leaks in a valve can cause...

Page 16: ...wear When testing a bearing or other moving machinery it is important to 1 Record your volume sensitivity and frequency range 2 Record the level on the alphanumeric display 3 Record or mark the test...

Page 17: ...nal increased ultrasonic energy This ultrasonic energy is generated from the friction associated with these problems and can be detected with the AccuTrak With experience you will know what readings a...

Page 18: ...f a loose fan belt in a car Early warning of such wear is indicated by a similar sound in the ultrasonic range Ductwork Leaking ducts can be a significant source of energy loss The AccuTrak can be use...

Page 19: ...the repair BEFORE this happens A significant increase in compressor noise indicates looseness wear or other serious problems AccuTrak helps prevent vibration caused leaks Steam is costly to produce ke...

Page 20: ...use excessive pressure on the item being tested Bent probes or cracked sensor housings are considered abuse and will not be covered under warranty Keep the instrument stored in its protective carrying...

Page 21: ...ion are believed to be accurate but the furnishing of it does not constitute the making of a good process warranty of Seller Superior Warrants that this product conforms to the Product Description con...

Page 22: ...probe 13 Leak Detection 5 method outline 5 leaks 10 quantifing 7 Quick Overview 5 modes selection 8 natural gas 7 Operation 8 operational mode 8 Pneumatics and Hydraulics 17 Sensitivity Setting the se...

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