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AccuTrak

 VPE-2000

 

 

17 

more accurate diagnosis of system health.  These  values can be entered into a 
computer spreadsheet program for creating charts, and storing data.  

Keep  this  information  in  your  files,  or  tagged  on  the  equipment  itself.    When 
returning  to  the  same  equipment,  perhaps  several  months  or  even  years  later, 
you have the information you need to make a decision as to the degree of wear 
in a particular piece of equipment. 

It is worth while to show this information to supervisors and plant management. 
The problems you identify and correct will eliminate costly downtime and energy 
loss,  ultimately  saving  your  company  money.  More 

scheduled

  repairs  and  less 

emergency work keeps your business under control.  

 

 

Vibration 

Vibration, misalignment, or moving machinery which is not properly balanced can 
be deadly to a system.  These things can cause excessive wear bringing the life 
of any system to an early demise. 

All these problems have a common warning signal; 

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 are good, and which are bad for the most common types of 
equipment you work on.   

Example:  If you are responsible for maintaining a system using multiple pumps 
or  motors  all  of  the  same  type.    After  testing  a  sample  of  these  bearings,  you 
soon  will  be  able  to  determine  what  readings  are  normal  or  abnormal  for  a 
particular type.   

 

Reminder:

    To  insure  success 

be  consistent

...    If  you  test  a  compressor 

bearing, for example, test the same place, at the same sensitivity setting. 

It is a good idea (although not necessary) to test units when they are new, and 
keep your own records of what is acceptable for a new piece of equipment. 

See the previous page on Charting your results. 

WARNING 

Be careful when working around rotating machinery.  The headphones will dampen much 
of  the  sound  which  may  cause  you  to  forget  that  the  machine  is  moving.    Use  care, 
common  sense,  and  be  alert  at  all  times.    Make  certain  the  cord  from  the  headphones  is 
out of the way of any moving machine member. 

Содержание AccuTrak VPE-2000

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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