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Alpine Ultraprobe 9000 User's Manual

1. re r Figure 1 Pressure Leak A leak can be in a pressurized system or in a vacuum system In both instances the ultrasound will be produced in the manner described above The only difference between the two is that a vacuum leak will usually generate less ultrasonic amplitude than a pressure leak of the same flow rate The reason for this is that the turbulence produced by a vacuum leak is occurring within the vacuum chamber while the turbulence of a pressure leak is generated in the atmosphere Fig 2 N KJ What type of gas leak will be detected ultrasonically Generally any gas including air will produce a turbulence when it escapes through a restricted orifice Unlike gas specific sensors the Ultraprobe is sound specific A gas specific sensor is limited to the 16 particular gas it was designed to sense e g helium The Ultraprobe can sense any type of gas leak since it detects the ultrasound produced by the turbulence of a leak Because of its versatility the Ultraprobe may be utilized in a wide variety of leak detection Pneumatic systems may be checked pressurized cables such as those utilized by telephone companies may be tested Air brake systems on railroad cars trucks and buses may be checked Tanks pipes housings casings and tubes are easily tested for leakage by pressurizing them Vacuum systems turbine exhausts vacuum chambers material handling systems condensers oxygen systems c
2. operations require turning a dial SET UP MODE The setup mode will be described in detail under the Set Up Mode section There are 9 menu options that will be described in that section 2 BASIC COMPONENTS Wrist Strap WTG 1 Warble Tone Generator Stethoscope Module Stethoscope Extension Kit Trisonic Scanning Module Stethoscope Module PLUG IN MODULES TRISONIC SCANNING MODULE This module is utilized to receive air borne ultrasound such as the ultrasounds emitted by pressure vacuum leaks and electrical discharges There are four prongs at the rear of the module For placement align the prongs with the four corresponding jacks in the front end of the pistol housing and plug in The Trisonic Scanning Module has a phased array of three piezoelectric transducers to pick up the airborne ultrasound This phased array focuses the ultrasound on one hot spot for directionality and effectively intensifies the signal so that minute ultrasonic emissions can be detected STETHOSCOPE CONTACT MODULE This is the module with the metal rod This rod is utilized as a waveguide in that it is sensitive to ultrasound that is generated internally such as within a pipe bearing housing or steam trap Once stimulated by ultrasound it transfers the signal to a piezoelectric transducer located directly in the module housing It is module shielded to provide protection from stray RF waves that have a tendency to effect electron
3. INVERTED BUCKET TRAPS normally fail in the open position because the trap loses its prime This condition means a complete blow through not a partial loss The trap will no longer operate intermittently Aside from a continuous rushing sound another clue for steam blow through is the sound of the bucket clanging against the side of the trap A FLOAT AND THERMOSTATIC trap normally fails in the closed position A pinhole leak produced in the ball float will cause the float to be weighted down or water hammer will collapse the ball float Since the trap is totally closed no sound will be heard In addition check the thermostatic element in the float and thermostatic trap If the trap is operating correctly this element is usually quiet if a rushing sound is heard this will indicate either steam or gas is blowing through the air vent This indicates that the vent has failed in the open position and is wasting energy THERMODYNAMIC DISC traps work on the difference in dynamic response to velocity change in the flow of compressible and incompressible fluids As steam enters static pressure above the disc forces the disc against the valve seat The static pressure over a large area overcomes the high inlet pressure of the steam As the steam starts to condense the pressure against the disc lessens and the trap cycles A good disc trap should cycle hold discharge hold 4 10 times per minute When it fails it usually fails in the open position allow
4. again and return to the Set Up Mode Spin to Exit to PGM Exit to Program Menu 9 blinks Click to enter Operation Mode 02 Select TIME 15 30 EXIT Set Time amp Date DATE 1 01 99 03 dB Scale Select dB Select has two settings from which to choose These settings will determine the baseline dB reference level of the instrument Once selected all test results will be based on the selected baseline dB level There are two scales Relative and dB offset Relative sets the instrument to the 0 dB of the instrument s internal minimal detection value and is the factory default setting dB offset is a dB level that is a new minimum reference level set by the user This value may be any dB level above the natural 0 dB of the instrument Once set the preset level must be subtracted from the reading to determine an accurate dB increase EG if 10 is the dB offset value and a subsequent reading is 25 dB then the increase is 15 dB To select a dB reference scale 1 2 3 SOOO Oo Menu dB Make sure the Ultraprobe is off Press click both the Yellow Store button and the Sensitivity dial at the same time then squeeze and hold the trigger When in the first Menu Selection Data Transfer Menu 01 you may move to any of the other Menu Selections by spinning the Sensitivity Control up or down clockwise or counter clockwise Spin to dB Scale Select Menu 03 blinks Click in the Sensitivity Control Spin the Sensitiv
5. as a welders curtain or a drop cloth to act as a barrier Place the material so that it acts as a wall between the test area and the competing sounds Sometimes the barrier is draped from ceiling to floor at other times it is hung over railings f Frequency Tuning If there are situations where a signal may be difficult to isolate it may be helpful to utilize the Frequency Tuning Point the Ultraprobe toward the test area and gradually adjust the frequency until the weak signal appears to be clearer and then follow the basic detection methods previously outlined 2 LOW LEVEL LEAKS In ultrasonic inspection for leakage the amplitude of the sound often depends upon the amount of turbulence generated at the leak site The greater the turbulence the louder the signal the less the turbulence the lower the intensity of the signal When a leak rate is so low that it produces little if any turbulence that is detectable it is considered below threshold If a leak appears to be of this nature 1 Build up the pressure if possible to create greater turbulence 2 Utilize LIQUID LEAK AMPLIFIER This patented method incorporates a UE Systems product called LIQUID LEAK AMPLIFIER or LLA for short LLA is a uniquely formulated liquid substance that has special chemical properties Used as an ultra sonic bubble test a small amount of LLA is applied to a suspected leak site It produces a thin film through which the escaping gas will pass When
6. can quickly adjust to recognizing differences among various steam traps of which there are three basic types mechanical thermostatic and thermodynamic When testing steam traps ultrasonically Determine what type of trap is on the line Be familiar with the operation of the trap Is it intermittent or continuous drain Try to check whether the trap is in operation is it hot or cold Use a non contact infrared thermometer to determine this Use the contact stethoscope module Set Frequency to 25 kHz Try to touch the contact probe towards the discharge side of the trap Press the trigger and listen Listen for the intermittent or continuous flow operation of the trap Intermittent traps are usually the inverted bucket thermodynamic disc and thermostatic under light loads Continuous flow include the float float and thermostatic and usually thermostatic traps While testing intermittent traps listen long enough to gauge the true cycle In some cases this may be longer than 30 seconds Bear in mind that the greater the load that comes to it the longer period of time it will stay open AND In checking a trap ultrasonically a continuous rushing sound will often be the key indicator of live steam passing through There are subtleties for each type of trap that can be noted Use the sensitivity levels of the Sensitivity Selection Dial to assist your test If a low pressure system is to be checked adjust the sensitivity UP if a high
7. it is on the scanning module close to the suspect leak site and move it slightly back and forth in all directions If the leak is at this location the sound will increase and decrease in intensity as you sweep over it In some instances it is useful to position the rubber focusing probe directly over the suspect leak site and push down to seal it from surrounding sounds If it is the leak the rushing sound will continue If it is not the leak site the sound will drop off C OVERCOMING DIFFICULTIES 1 Competing Ultrasounds If competing ultrasounds make it difficult to isolate a leak there are two approaches to be taken a Manipulate the environment This procedure is fairly straightforward When possible turn off the equipment that is producing the competing ultrasound or isolate the area by closing a door or window b Manipulate the instrument and use shielding techniques If environmental manipulation is not possible try to get as close to the test site as possible and manipulate the instrument so that it is pointing away from the competing ultrasound Isolate the leak area by reducing the sensitivity of the unit and by pushing the tip of the rubber focusing probe up to the test area checking a small section at a time In some extreme instances when the leak check is difficult at 40 kHz try to tune in to the leak sound by tuning out the problem sound In this instance adjust the frequency until the background sound is minimized and
8. or hissing noise Crackling or rough sounds indicate a bearing in the failure stage In certain cases a damaged ball can be heard as a clicking sound whereas a high intensity uniform rough sound may indicate a damaged race or uniform ball damage Loud rushing sounds similar to the rushing sound of a good bearing only slightly rougher can indicate lack of lubrication Short duration increases in the sound level with rough or scratchy components indicate a rolling element hitting a flat spot and sliding on the bearing surfaces rather than rotating If this condition is detected more frequent examinations should be scheduled 21 DETECTING BEARING FAILURE There are two basic procedures of testing for bearing problems COMPARATIVE AND HISTORICAL The comparative method involves testing two or more similar bearings and comparing potential differences Historical testing requires monitoring a specific bearing over a period of time to establish its history By analyzing bearing history wear patterns at particular ultrasonic frequencies become obvious which allows for early detection and correction of bearing problems FOR COMPARATIVE TEST 1 Use contact stethoscope module 2 Select desired frequency If only one frequency is to be monitored consider using 30 kHz 3 Select a test spot on the bearing housing and mark it for future Touch that spot with the contact module In ultrasonic sensing the more mediums or materials ultraso
9. pressure system above 100 psi is to be checked reduce the sensitivity level Some experimentation may be necessary to arrive at the most desirable level to be tested Check upstream and reduce the sensitivity to hear the trap sounds more clearly and touch downstream to compare readings FREQUENCY SELECTION Occasionally it may be necessary to tune in to a steam trap In some systems specifically float type traps under low or moderate pressure load a wide orifice will not produce too much ultrasound If this is the case touch the trap on the downstream side Adjust the frequency start at 25 KHz and listen for a lower frequency trickling sound of water For other subtle trap sounds such as determining the difference of condensate vs steam sounds try to listen at 40 KHz If this proves difficult gradually rotate the Frequency Selection Dial down counterclockwise until the specific sounds are heard Steam will have a light gaseous sound condensate will have additional overtones to its rushing sound GENERAL STEAM CONDENSATE FLASH STEAM CONFIRMATION In instances where it may be difficult to determine the sound of steam flash steam or condensate 1 Touch at the immediate downstream side of the trap and reduce the sensitivity to hear the sounds more clearly 2 Move 6 12 inches 15 2 30 5 cm downstream and listen Flashing steam will show a large drop off in intensity while leaking steam will show little drop off in intensity 25
10. then proceed to listen for the leak 17 1 SHIELDING TECHNIQUES Since ultrasound is a high frequency short wave signal it can usually be blocked or shielded NOTE When using any method be sure to follow your plant s or company s safety guidelines Some common techniques are a Body place your body between the test area and the competing sounds to act as a barrier b Clip Board Position the clip board close to the leak area and angle it so that it acts as a barrier between the test area and the competing sounds c Gloved Hand USE CAUTION using a gloved hand wrap the hand around the rubber focusing probe tip so that the index finger and the thumb are close to the very end and place the rest of the hand on the test site so that there is a complete barrier of the hand between the test area and the background noise Move the hand and instrument together over the various test zones d Wipe rag This is the same method as the gloved hand method only in addition to the glove use a wipe rag to wrap around the rubber focusing probe tip Hold the rag in the gloved hand so that it acts as a curtain i e there is enough material to cover the test site without blocking the open end of the rubber focusing probe This is ususally the most effective method since it uses three barriers the rubber focusing probe the gloved hand and the rag e Barrier When covering a large area it is sometimes helpful to use some reflective material such
11. to determine bearing wear Since that individual is hearing ONLY the audio elements of the signal the results of that type of diagnosis will be quite gross The subtleties of change within the ultrasonic range will not be perceived and therefore omitted When a bearing is perceived as being bad in the audio range it is in need of immediate replacement Ultrasound offers a predictable diagnostic capacity When changes begin to occur in the ultrasonic range there is still time to plan appropriate maintenance In the area of leak detection ultrasound offers a fast accurate method of locating minute as well as gross leaks Since ultrasound is a short wave signal the ultrasonic elements of a leak will be loudest and most clearly perceived at the leak site In loud factory type environments this aspect of ultrasound makes it even more useful Most ambient sounds in a factory will block out the low frequency elements of a leak and thereby render audible leak inspection useless Since the Ultraprobe is not capable of responding to low frequency sounds it will hear only the ultrasonic elements of a leak By scanning the test area a user may quickly spot a leak Electrical discharges such as arcing tracking and corona have strong ultrasonic components that may be readily detected As with generic leak detection these potential problems can be detected in noisy plant environments with the Ultraprobe 30 INSTRUCTIONS FOR SETTING COMBINATION ON CARRYI
12. very useful mode for inspections that require a comparison of measurements Snapshot holds a specific reading on the display The display can be updated by releasing and pressing the trigger An example of this operation mode would be to locate the loudest point in a machine By pointing the instrument at a loud signal and pulling the trigger the sound intensity level will be displayed on the panel and held for comparison as the instrument is scanned around other points on the machine The meter will remain constant while the audio levels change Another example is performing a quick comparison of multiple bearings by pressing and releasing the trigger to update and compare sound levels Peak Hold displays and holds the peak value for comparison It changes only when a higher ultrasound level is sensed The bar graph will move up and down to display sound intensities but the Peak Hold dB reading in the upper left corner will remain constant A thin vertical line on the bar graph indicates the peak intensity of the bar graph The Peak Hold dB reading is reset by turning the instrument off or by changing the frequency To select Display Mode 1 Make sure the Ultraprobe is off 2 Press click both the Yellow Store button and the Sensitivity dial at the same time then squeeze and hold the trigger 3 When in the first Menu Selection Data Transfer Menu 01 you may move to any of the other Menu Selections by spinning the Sensitivity Control up
13. NG CASE The combination is factory set at 0 0 0 Setting your personal combination 1 Open the case Looking at the back of the lock inside the case you will see a change lever Move this change lever to the middle of the lock so that it hooks behind the change notch picture 1 2 Now set your personal combination by turning the dials to the desired combination i e birthday phone no etc 3 Move the change lever back to the normal position picture 2 4 To lock rotate one or more dials To open the lock set your personal combination International patents pending 31 Alpine Components Telephone 01424 437000 E mail info alpine components co uk Fax 01424 722502 Web site www alpine components co uk 32 UP9M899
14. Or O O O Dt on at250 lt a ZWNrFCODdDOF O2Z Table of Contents 1 Overview Ultrasound Technology Instruction Scholarship Certificate Operation Mode Setup Mode 2 Basic Components Plug In Modules Scanning Module Contact Module Pistol Grip Housing Display Panel Trigger On Off Switch VO Port Battery Compartment Battery Wrist Strap Sensitivity Control Dial Storage Entry Button Head Set Jack Recharge Jack 3 Accessories Standard Accessories A Headset WTG 1 Warble Tone Generator Rubber Focusing Probe Stethoscope Extension Kit SPC C9 VO Cable BCH 9 Battery Charger BCH WTG Battery Charger Optional Accessories LRM 9 CFM 9 UWC 9000 DHC 2HH Hard Hat Headphones DHC 1991 Ear Piece SA 2000 Speaker Amplifier UFMTG 1991 WTG 2SP Warble Pipe Threaded Tone Generator BP 9 BPA 9 BCH 92 BCH WTG2 HTS 2 SHEATH LLA SPC MP SPC BNC QCH 9 QCH 92 WWW m WwW RA RW MM MM f ON 4 Operation Mode 8 e Display Panel 8 e Bar Graph Display 8 e Sensitivity Control Dial 8 Sensitivity Volume Adjust 8 e Frequency Adjust 9 e Yellow Store Button 9 Store a Reading 9 e Overwrite Data or Enter Data In a New Location 9 e Text Editor 10 5 Setup Mode 10 e Data Transfer 10 Set Time amp Date 11 dB Scale Select 11 e dB Offset Val Val
15. QUENCY e Look at the meter The kHz indicator must blink to be able to tune the frequency If it is not blinking Click in the Sensitivity control dial one time and the kHz indicator in the display panel will blink e When the kHz indicator blinks change the frequency by rotating the Sensitivity dial up clockwise or down counter clockwise YELLOW STORE BUTTON TO STORE A READING click press the yellow Store Button This puts the instrument in the data storage mode In the data storage mode the display panel changes e The Storage Location is shown in the upper left corner There are 400 Storage Locations numbered 001 to 400 If the Storage Location has no data in it the display will show NOT USED e If there has been information stored in the selected location the upper section of the display will indicate that information The text field if previously selected Time Date Decibel Frequency and Operation Mode R S P RO SO or PO with offset Value in the Offset Mode will blink and alternate scroll The text field if previously selected in the Set Up Mode may be used to record notes or codes e The lower left corner of the display indicates the current decibel level selected for storage e The lower right of the display indicates the current frequency selected for storage The lower right corner of the display indicates the Operation Mode R S or P RO SO
16. adapters for 347 and 1 2 female nipple with a 10 turn amplitude adjustment dial Metric adapters available BP 9 Extended use auxiliary battery pack for use with the UP9000 BPA 9 Spare battery pack for use with the UP9000 BCH 92 Optional battery charger for the UP9000 with a line input of 220 VAC 50Hz The charging time is about 8 hours BCH WTG2 Optional battery charger for use with all Warble Tone Generators The line input is 220 VAC 50Hz and the charging time is about 8 hours HTS 2 Holster set for the UP9000 Includes a utility belt and two holsters one for the UP9000 one module and rubber focusing probe the other for accessories SHEATH The sheath is a cordura cover protector for the UP9000 Pistol Housing LLA Liquid Leak Amplifier case It holds 12 8 oz Bottles of Liquid Leak Amplifier For Ultrasonic Bubble Testing 5PC MP Optional I O cable 5 pin to miniphone for heterodyned output signal via the I O connector on the UP9000 5PC BNC Optional I O cable 5 pin to BNC for heterodyned output signal via the I O connector on the UP9000 QCH 9 Optional quick charge battery charger for the UP9000 with a line input of 120 VAC 60 The charging time is about 3 hours QCH 92 Optional quick charge battery charger for the UP9000 with a line input of 230 VAC 50 Hz The charging time is about 3 hours 4 OPERATION MODE DISPLAY PANEL When the trigger is pressed to turn the instrument on the D
17. an all easily be tested for leakage by listening for the turbulence of the leak HOW TO LOCATE LEAKS 1 Use the SCANNING MODULE 2 Start at 40 kHz If too much background noise is present try some of the shielding methods listed below 3 Start off with the sensitivity at Maximum 4 Begin to scan by pointing the module towards the test area The procedure is to go from the gross loudest to the fine refined sound discrimination more and more subtle adjustments will be made as the leak is approached 5 If there is too much ultrasound in the area reduce the sensitivity setting until you are able to determine the direction of the loudest sound and continue to scan 6 Move closer to the test area as you scan T Continue to make adjustments with the sensitivity as needed in order to determine the direction of the leak sound 8 If it is difficult to isolate the leak due to competing ultrasound place the RUBBER FOCUSING PROBE over the scanning module and proceed to scan the test area 9 Listen for rushing sound while observing the meter 10 Follow the sound to the loudest point The meter will show a higher reading as the leak is approached 11 In order to focus in on the leak keep reducing the sensitivity setting and move the instrument closer to the suspected leak site until you are able to confirm a leak B TO CONFIRM A LEAK Position the Trisonic Scanning Module or the rubber focusing probe if
18. ccurs when electricity is conducted to ground Lightning is a good example Corona When voltage on an electrical conductor such as an antenna or high voltage transmission line exceeds the threshold value of the air around it air begins to ionize and form a blue or purple glow Tracking Often referred to as baby arcing it follows the path of damaged insulation The Ultraprobe 9000 can be used in low below 15 kV medium 15 kV 115 kV and high voltage systems above 115 kV When electricity escapes in high voltage lines or when it jumps across a gap in an electrical connection it disturbs the air molecules around it and generates ultrasound Most often this sound will be perceived as a crackling or frying sound in other situations it will be heard as a buzzing sound Typical applications include insulators cable switchgear buss bars relays circuit breakers pot heads junction boxes In substa tions components such as insulators transformers and bushings may be tested Ultrasonic testing is often used in enclosed switchgear Since ultrasound emissions can be detected by scanning around door seams and air vents it is possible to detect serious faults such as arcing tracking and corona without taking the switchgear off line as in an infrared scan However it is recommended that both tests be used with enclosed switchgear NOTE When testing electrical equipment follow all your plant or company safety procedures When in
19. check frequently 22 Lack of Lubrication To avoid lack of lubrication note the following 1 As the lubricant film reduces the sound level will increase A rise of about dB over baseline accompanied by a uniform rushing sound will indicate lack of lubrication 2 When lubricating add just enough to return the reading to base line 3 Use caution Some lubricants will need time to uniformly cover the bearing surfaces Lubricate a small amount at a time DO NOT OVER LUBRICATE Over Lubrication One of the most common causes of bearing failure is over lubrication The excess pressure of the lubricant often breaks or pops bearing seals or causes a build up of heat which can create stress and deformity To avoid over lubrication 1 Don t lubricate if the base line reading and base line sound quality is maintained 2 When lubricating use just enough lubricant to bring the ultrasonic reading to baseline 3 As mentioned above use caution Some lubricants will need time to uniformly cover the bearing surfaces Proper Lubrication Lack of Lubrication Reduces Friction Increases Amplitude Levels SLOW SPEED BEARINGS Monitoring slow speed bearings is possible with the Ultraprobe 9000 Due to the sensitivity range and the frequency tuning it is quite possible to listen to the acoustic quality of bearings In extremely slow bearings less 25 RPM it is often necessary to disregard the display and listen to the sound of the beari
20. ct in the most challenging environment 1 OVERVIEW Your Ultraprobe 9000 is a versatile instrument with many features that will make your inspections easy fast and accurate As with any new instrument it is important to review this manual before you begin inspections While simple to use as a basic inspection tool there are many powerful features that when understood will open up a world of opportunities for inspection and data analysis ULTRASOUND TECHNOLOGY INSTRUCTION SCHOLARSHIP CERTIFICATE Your Ultraprobe 9000 has many applications ranging from leak detection to mechanical inspection and may be used to trend analyze or just find a problem How it is used is up to you As you gain knowledge and learn how many modes of inspection you can cover you might want to extend your knowledge by enrolling in one of the many training courses offered by UE Training Systems Inc A Scholarship certificate is available to you Simply fill out the form found at the end of this manual and mail or fax it in The Ultraprobe 9000 is an ultrasonic inspection information storage and retrieval system in a pistol housing There are two modes that are important to understand OPERATION MODE The operation mode will be described in detail under the operation mode section In this mode you will perform all inspection actions such as scanning probing Click and Spin activities and store data NOTE Click operations require pressing a dial Spin
21. dard battery charger for all Warble Tone Generators that are used with the UP9000 The line input is 120 VAC 60Hz and the charging time is about 8 hours For countries with 220V 50Hz the BCH 92 is considered a Standard Accessory B OPTIONAL ACCESSORIES LRM 9 A cone shaped scanning module that increases the detection distance above standard scanning modules The LRM 9 is ideal for high voltage inspection and for locating leaks at great distances CFM 9 A scanning module used for close proximity leak detection in pressure and vacuum systems UWC 9000 The UWC 9000 Ultrasonic Waveform Concentrator doubles the detection distance The UWC 9000 is great for corona tracking and arc detection at safe distances Includes carrying case DHC 9HH Headphone headset is for use with a hard hat DHC 1991 EAR PIECE Ear piece eliminates the need for standard headphones SA 2000 SPEAKER AMPLIFIER The SA 2000 is a loud speaker and amplifier that is compatible with the Ultraprobe headphone output jack UFMTG 1991 The UFMTG 1991 is a multi directional warble tone generator It has a high power output with a circular transmission pattern of 3605 WTG 2SP WARBLE PIPE TONE GENERATOR A Warble Tone Generator that is used in test conditions where it is not possible to physically place the standard WTG 1 Warble Tone Generator such as in pipes or in certain heat exchangers or tanks Features 1 NPT male threaded nipple with
22. de an empty container or on one side of a test item it will flood that area with an intense ultrasound that will not penetrate any solid but will flow through any existing fault or void By scanning with the Trisonic Scanning Module empty containers such as pipes tanks windows doors bulkheads or hatches can be instantly checked for leakage This Tone Generator is a WARBLE TONE GENERATOR This internationally patented transmitter sweeps through a number of ultrasonic frequencies in a fraction of a second to produce a strong recognizable Warble signal The warble tone prevents a standing wave condition which can produce false readings and provides for a consistency of testing in practically any material RUBBER FOCUSING PROBE The Rubber Focusing Probe is a cone shaped rubber shield It is used to block out stray ultrasound and to assist in narrowing the field of reception of the Trisonic Scanning Module STETHOSCOPE EXTENSION KIT This consists of three metal rods that will enable a user to reach up to 31 additional inches 78 7 cm with the Stethoscope Probe 5PC C9 I O CABLE Standard I O cable for downloading records from the UP9000 to the serial port on a PC BCH 9 BATTERY CHARGER This is the standard battery charger for the UP9000 with a line input of 120VAC 60Hz The charging time is about 8 hours For countries with 220 V 50 Hz the BCH 92 is considered a Standard Accessory BCH WTG BATTERY CHARGER This is the stan
23. doubt ask your supervisor Never touch live electrical apparatus with the Ultraprobe or its accessories The method for detecting electric arc and corona leakage is similar to the procedure outlined in leak detection Instead of listening for a rushing sound a user will listen for a crackling or buzzing sound In some instances as in trying to locate the source of radio TV interference or in substations the general area of disturbance may be located with a gross detector such as a transistor radio or a wide band interference locator Once the general area has been located the scanning module of the Ultraprobe is utilized with a general scan of the area The sensitivity is reduced if the signal is too strong to follow When this occurs reduce the sensitivity to get a mid line reading on the meter and continue following the sound until the loudest point is located Determining whether a problem exists or not is relatively simple By comparing sound quality and sound levels among similar equipment the problem sound will tend to be quite different On lower voltage systems a quick scan of bus bars often will pick up arcing or a loose connection Checking junction boxes can reveal arcing As with leak detection the closer one gets to the emission site the louder the signal If power lines are to be inspected and the signal does not appear to be intense enough to be detectable from the ground use UE Systems UWC 9000 Ultrasonic Waveform Concentrato
24. e contact module NOTE To prevent damage to the module plugs always remove the module BEFORE attaching and or removing the Rubber focusing Probe STETHOSCOPE MODULE e Align the pins located at the rear of the module with the four jacks in the front end of the Metered Pistol Housing MPH and plug in e Touch test area As with the scanning module go from the gross to the fine Start a maximum sensitivity on the Sensitivity Selection dial and proceed to reduce the sensitivity until a satisfactory sound level is achieved At times it may be necessary to utilize the stethoscope probe with the sensitivity level at or near maximum Occasionally when in this situation stray ultrasound may interfere with clear reception and be confusing If this occurs place the RUBBER FOCUSING PROBE over the Stethoscope probe to insulate against the stray ultrasound STETHOSCOPE EXTENSION KIT 1 Remove the Stethoscope Module from the Metered Pistol Housing 2 Unscrew the metal rod in the Stethoscope Module 3 Look at the thread of the rod you just unscrewed and locate a rod in the kit that has the same size thread this is the base piece 4 Screw the Base Piece into the Stethoscope Module 5 If all 31 78 7 cm are to be utilized locate the middle piece This is the rod with a female fitting at one end and screw this piece into the base piece 6 Screw third end piece into middle piece 7 Ifa shorter length is desired omit step 5 and scr
25. e generated except at bends or obstacles In the case of a leaking valve the escaping liquid or gas will move from a high to a low pressure area creating turbulence on the low pressure or downstream side This produces a white noise The ultrasonic component of this white noise is much stronger than the audible component If a valve is leaking internally the ultrasonic emissions generated at the orifice site will be heard and noted on the meter The sounds of a leaking valve seat will vary depending upon the density of the liquid or gas In some instances it will be heard as a subtle crackling sound at other times as a loud rushing sound Sound quality depends on fluid viscosity and internal pipe pressure differentials As an example water flowing under low to mid pressures may be easily recognized as water However water under high pressure rushing through a partially open valve may sound very much like steam To discriminate 1 Reduce the sensitivity 2 Change the frequency to 25 kHz and listen properly seated valve will generate no sound In some high pressure situations the ultrasound generated within the system will be so intense that surface waves will travel from other valves or parts of the system and make it difficult to diagnose valve leakage In this case it is still possible to diagnose valve blow through by comparing sonic intensity differences by reducing the sensitivity and touching just upstream of the valve at the valve sea
26. ea gradually position the rod until the leak sound is heard at its loudest point An alternative to this is to use a flat metal disc or coin and drop it on the test area Touch the disc and listen at 20 kHz This is useful when testing concrete or asphalt to eliminate scratching sounds caused by slight movements of the stethoscope module on these surfaces B LEAKAGE BEHIND WALLS 1 Look for water or steam markings such as discoloration spots in wall or ceiling etc 2 If steam feel for warm spots in wall or ceiling or use a non contact infrared thermometer 3 Set Frequency to 20 kHz and use stethoscope probe 4 Listen for leak sounds The louder the signal the closer you are to the leak site PARTIAL BLOCKAGE When partial blockage exists a condition similar to that of a bypassing valve is produced The partial blockage will generate ultrasonic signals often produced by turbulence just down stream If a partial blockage is suspected a section of piping should be inspected at various intervals The ultrasound generated within the piping will be greatest at the site of the partial blockage PROCEDURE 1 Use stethoscope module 2 Touch downstream side of suspected area and listen through headset 3 Start test at 40 kHz If the sound appears weak or confusing change the frequency As an example try to test at 30 kHz then 20 kHz 4 When necessary if there is too much sound reduce sensitivity 5 Listen for an increase in ultras
27. ed TONE GENERATOR inside or on one side of the test item The warble pulse signal from the TONE GENERATOR will instantly flood the test item and penetrate any existing leak hole Depending on configuration and material even thin spots in certain metals can be vibrated by the signal By scanning for sonic penetration on the exterior surface or opposite side of the test item with the Ultraprobe the leak will be detected It will be heard as a high pitched warble similar to bird chirping The Tone Test incorporates two basic components a TONE GENERATOR an ultrasonic transmitter and the Trisonic Scanning Module in the Ultraprobe To conduct the test 1 Make certain the test item has no fluids or contaminants such as water mud sludge etc that can block the path of the transmitted ultrasound 2 Place the Tone Generator within the container if it is a room door or window to be tested place the Tone Generator on one side pointing in the direction of the area to be tested and close or seal so that the Tone Generator is enclosed within NOTE The size of the test area will determine the amplitude selection of the Tone Generator If the item to be tested is small select the LOW position For larger items use the HIGH position 3 Scan the test area with the Ultraprobe as outlined in LEAK DETECTION procedure When positioning the Tone Generator place the transducer facing and close to the most crucial test area If a general area i
28. enu 08 Blinks Click to enter the Factory Default Set Up Mode Spin up or down to select either YES or NO Click to set and return to Set Up Mode Spin to Exit to PGM Exit to Program Menu 09 blinks Click to enter Operation Mode io 4 5 6 A 8 Menu 08 Select Factory Defaults Factory Defaults Factory Defaults Confirm NO Confirm YES 13 09 Exit to program Click the Sensitivity Control dial and you will exit to Operations Mode 6 USERS INSTRUCTIONS TRISONIC SCANNING MODULE e Plug in to front end e Align the pins located at the rear of the module with the four jacks in the front end of the Metered Pistol Housing MPH and plug in e For general use position the frequency selection to 40 kHz e Start to scan the test area METHOD OF AIRBORNE DETECTION The method of air borne detection is to go from the gross to the fine If there is too much ultrasound in the area reduce the sensitivity place the RUBBER FOCUSING PROBE described below over the scanning module and proceed to follow the test sound to its loudest point constantly reducing the sensitivity and following the display HEADSET To use simply plug the headset cord into the headset Jack on the pistol housing and place the headphones over your ears If a hard hat is to be worn it is recommended to use UE Systems model DHC 2HH hard hat headphones RUBBER FOCUSING PROBE To use simply slip it over the front of the scanning module or th
29. ew end piece into base piece TO CHARGE THE UP9000 Plug recharger cable into recharger jack on the UP9000 and then plug the recharger into a wall receptacle e Make sure that the LED on the charger is lit when recharging e The LED turns OFF when the battery is charged The instrument may stay connected to the charger without damaging the battery e WARNING Use the supplied UE Systems recharger BCH 9 or BCH 92 only Use of unauthorized rechargers will void the warranty and may degrade or damage the battery 14 WARBLE TONE GENERATOR UE WTG 1 e Turn Tone Generator on by selecting either LOW for a low amplitude signal usually recommended for small containers or HIGH for high amplitude In high the Warble Tone Generator will cover up to 4 000 cubic feet 121 9 cu meters of unobstructed space e When the Tone Generator is on a red light located below the recharge jack in the front flickers e Place the Warble Tone Generator within the test item container and seal or close it Then scan the suspect areas with the Trisonic Scanning Module in the Ultraprobe and listen for where the warble ultrasound penetrates As an example if the item to be tested is the seal around a window place the Warble Tone Generator on one side of the window close it and proceed to scan on the opposite side e To test the condition of the Warble Tone Generator battery set to the LOW INTENSITY position and listen to the sound through the Ul
30. has entered the beginning of the failure mode This information was originally discovered through experimentation performed by NASA on ball bearings In tests performed while monitoring bearings at frequencies ranging from 24 through 50 kHz they found that the changes in amplitude indicate incipient the onset of bearing failure before any other indicators including heat and vibration changes An ultrasonic system based on detection and analysis of modulations of bearing resonance frequencies can provide subtle detection capability whereas conventional methods are incapable of detecting very slight faults As a ball passes over a pit or fault in the race surface it produces an impact A structural resonance of one of the bearing components vibrates or rings by this repetitive impact The sound produced is observed as an in crease in amplitude in the monitored ultrasonic frequencies of the bearing Brinelling of bearing surfaces will produce a similar increase in amplitude due to the flattening process as the balls get out of round These flat spots also produce a repetitive ringing that is detected as an increase in amplitude of monitored frequencies The ultrasonic frequencies detected by the Ultraprobe are reproduced as audible sounds This heterodyned signal can greatly assist a user in determining bearing problems When listening it is recommended that a user become familiar with the sounds of a good bearing A good bearing is heard as a rushing
31. he display panel WRIST STRAP To protect the instrument against unexpected droppage use the wrist strap SENSITIVITY CONTROL DIAL This is one of the most important controls in the unit In the operation mode it lets you adjust the sensitivity When clicked it can change the frequency In the Set Up Mode it moves the cursor and by clicking sets notations STORAGE ENTRY BUTTON This yellow button is used to store data and also puts you into the Text Field Editor when enabled HEAD SET JACK This is where you plug in the headset Be sure to plug it in firmly until it clicks Should a tape recorder be utilized this is where the cord for the tape recorder is inserted Use a miniphone plug This can also be used as an output for a vibration analyzer or notebook computer when used with a proper miniphone to BNC connector RECHARGE JACK This Jack receives the plug from the recharger The recharger is designed to plug into a standard electrical receptacle 3 ACCESSORIES A STANDARD ACCESSORIES HEADSET This heavy duty headset is designed to block out intense sounds often found in industrial environments so that the user may easily hear the sounds received by the ULTRAPROBE In fact the standard headphones provide over 23 dB of noise attenuation WTG 1 WARBLE TONE GENERATOR The WTG 1 Tone Generator is an ultrasonic transmitter designed to flood an area with ultrasound It is used for a special type of leak test When placed insi
32. ic receiving and measurement This module can be effectively utilized in practically any environment ranging from airports to broadcasting towers It is equipped with low noise amplification to allow for a clear intelligible signal to be received and interpreted For placement align the four prongs on the back with the corresponding receptacles in the front of the pistol and plug in B PISTOL GRIP HOUSING DISPLAY PANEL In the Operation Mode the Display Panel will show intensity levels as dB and as a bar graph Frequency Battery Level and Display Mode The Display Mode and the Battery level indications alternate Intensity levels are shown simultaneously as a numeric dB value and on a sixteen segmented bar graph with each segment representing 3 dB The Frequency is adjustable from 20 kHz to 100 kHz These represent the range of frequency selection capable with the Ultraprobe The most common frequency used for general leak detection or electrical inspection is 40 kHz These frequencies may be tuned in when performing inspections with any of the Ultraprobe s plug in modules The Display Mode indicates the operation mode of the instrument This is indicated on the display panel as R for Real Time P for Peak Hold S for Snap Shot or RO for Real Time Offset PO for Peak Hold Offset and SO for Snap Shot Offset For additional information about Offset see dB Scale Select in the Set Up Mode Section Display Panel St
33. idistant points upstream these will be point A and Point B and compare them to two equidistant points downstream point C and point D The sound intensity of points A and B are compared with test points C and D If point C is higher than points A and B the valve is considered leaking If point D is higher than point C this is an indication of sound being transmitted from another point downstream CONFIRMING VALVE LEAKAGE IN NOISY PIPE SYSTEMS Occasionally in high pressure systems stray signals occur from valves that are close by or from pipes or conduits feeding into common pipe that is near the down stream side of a valve This flow may produce false leak signals In order to determine if the loud signal on the downstream side is coming from a valve leak or from some other source 1 Move close to the suspected source i e the conduit or the other valve 2 Touch at the upstream side of the suspected source 3 Reduce sensitivity until the sounds are clearer 4 Touch at short intervals such as every 6 12 inches 15 30 5 cm and note the meter changes 5 If the sound level decreases as you move towards the test valve it indicates that the valve is not leaking 6 If the sound level increases as you approach the test valve It is an indication of a leak in the valve 6 MISCELLANEOUS PROBLEM AREAS A UNDERGROUND LEAKS Underground leak detection depends upon the amount of ultrasound generated by the particular leak Some
34. ing simply release and press the trigger switch AUTO SHUTDOWN BATTERY FEATURE The Ultraprobe 9000 is equipped with an auto shutdown feature which enables the instrument to provide accurate measurement throughout the effective battery charge If the Ultraprobe 9000 goes into the auto shutdown mode no sound will be heard in the headphones and measurements will not be displayed on the display panel To restore the Ultraprobe 9000 to its normal operating mode recharge the instrument using the BCH 9 Battery Charger BCH 92 for 220 V operation RESETTING THE ON BOARD COMPUTER For security purposes there is no reset switch on the instrument Should it be necessary to reset the instrument disconnect the battery for one 1 minute and then reconnect the battery 15 A APPLICATIONS 1 LEAK DETECTION This section will cover airborne leak detection of pressure and vacuum systems For information concerned with internal leaks such as in Valves and Steam Traps refer to the appropriate sections What produces ultrasound in a leak When a gas passes through a restricted orifice under pressure it is going from a pressurized laminar flow to low pressure turbulent flow Fig 1 The turbulence generates a broad spectrum of sound called white noise There are ultrasonic components in this white noise Since the ultrasound will be loudest by the leak site the detection of these signals is usually quite simple oe SS
35. ing continuous blow through of steam THERMOSTATIC TRAPS bellows amp bi metallic operate on a difference in temperature between condensate and steam They build up condensate so that the temperature of condensate drops down to a certain level below saturation temperature in order for the trap to open By backing up condensate the trap will tend to modulate open or closed depending on load In a bellows trap should the bellows become compressed by water hammer it will not function properly The occurrence of a leak will prevent the balanced pressure action of these traps When either condition occurs the trap will fail in its natural position either opened or closed If the trap falls closed condensate will back up and no sound will be heard If the trap falls open a continuous rushing of live steam will be heard With bimetallic traps as the bimetallic plates set due to the heat they sense and the cooling effect on the plates they may not set properly which will prevent the plates from closing completely and allow steam to pass through This will be heard as a constant rushing sound NOTE A complimentary Steam Trap Trouble Shooting Guide is available Contact UE Systems directly by phone or fax 26 5 LOCATING FAULTY VALVES Utilizing the contact stethoscope module in the Ultraprobe valves can easily be monitored to determine if a valve is operating properly As a liquid or gas flows through a pipe there is little or no turbulenc
36. isplay Panel will display intensity levels simultaneously on a bar graph and as a numerical decibel value The current selected frequency will also be shown Remaining Battery Charge is shown in the upper right corner The letters R S or P will alternate with the battery indicator in the upper right corner R indicates that the instrument is running in Real Time S indicates Snap Shot and P indicates Peak Hold Should the instrument be set in the Offset Mode then the letters RO SO and PO will be displayed BAR GRAPH DISPLAY The bar graph has 16 segments Each segment represents 3 decibels At the end of the bar graph is a vertical line which indicates the peak intensity This is a Peak Hold function When in operation the bar graph will move up and down the scale as an indication of the amplitude of a sensed ultrasound The Peak Hold indicator will remain at the highest sensed intensity during a particular inspection until 1 A new maximum reading is detected or 2 The trigger is released and the instrument is turned off At which time it will reset 06 dB 40 kHz R 06dB 40kHz S 06 dB 40 kHz P Real Time R Flashes Snap Shot S Flashes Peak Hold P Flashes All of these alternate with battery level Indicator SENSITIVITY CONTROL DIAL TO ADJUST THE SENSITIVITY VOLUME Look at the meter If the instrument is within range the dB decibel indicator must blink The kHz frequency indicator must be stead
37. it comes in contact with a low flow of gas it quickly forms a large number of small soda like bubbles that burst as soon as they form This bursting effect produces an ultrasonic shock wave that is heard as a crackling sound in the headphones In many instances the bubbles will not be seen but they will be heard This method is capable of obtaining successful leak checks in systems with leaks as low as 1x10 ml sec NOTE The low surface tension of the LLA is the reason small bubbles form This can be negatively changed by contamination of the leak site with another leak fluid which can block LLA or cause large bubbles to form If contaminated clean the leak site with water solvent or alcohol check with plant regulations before selecting a decontaminating cleaning agent 3 Use the UE CFM 9 Close Focus Module Specifically designed for low level leaks the unique scanning chamber is designed to receive low level signals with reduced signal distortion and provides easier recognition of a low level leak For more information call the factory D TONE TEST Ultratone The Tone Test is an ultrasonic method for non destructive testing which is used when it is difficult to pressurize or draw a vacuum in a system This ultrasonic test is applicable to a wide range of items including CONTAINERS TUBES PIPES HEAT EXCHANGERS WELDS GASKETS SEALS DOORS WINDOWS OR HATCHES 18 The test is conducted by placing an ultrasonic transmitter call
38. ity Control to the desired scale Relative or Offset Click the Sensitivity Control to set and return to the set up mode Spin to Exit to PGM Exit to Program Menu 09 blinks Click to enter Operation Mode 03 Select dB Scale Select dB Scale Select Scale Select Relative Offset 11 04 dB Offset This position is selected to set the dB scale for readings to be taken in dB offset scale In order to use the dB offset scale refer to III above To set the dB offset scale 1 Make sure the Ultraprobe is off 2 Press click both the Yellow Store button and the Sensitivity dial at the same time then squeeze and hold the trigger 3 When in the first Menu Selection Data Transfer Menu 01 you may move to any of the other Menu Selections by spinning the Sensitivity Control up or down clockwise or counter clockwise Spin to dB Offset Val value Menu 04 blinks and click in the Sensitivity Control The dB Val 00 will blink Spin the Sensitivity Control to the desired dB value level Click the Sensitivity Control to set and return to Set Up Mode Spin to Exit to PGM Exit to Program Menu 09 blinks Click to enter Operation Mode INNE Menu 04 Select dB Offset Val dB Offset Val dB VAL 00 05 Display Mode Menu There are three modes to choose in Display Mode Real Time Snapshot and Peak Hold Real Time is the standard operation of the instrument For basic inspection operations choose Real Time Snapshot is a
39. kwise or counter clockwise Spin to Text Editor Sel Select Menu 07 blinks Click the Sensitivity Control Dial to enter the Text Editor enable mode Spin the Sensitivity Control Dial to select OFF or ON Click the Sensitivity Control Dial to set and return to Set Up Mode Spin to Exit to PGM Exit to Program Menu 09 blinks Click to enter Operation Mode W OO SON Menu 07 Select Text Editor Sel Text Editor Sel Text Editor Text Editor OFF Text Editor ON 08 Factory Defaults This mode allows users to retain or to delete the information stored in the instrument and to restore the factory default settings of the instrument Confirm YES means that the onboard computer will default to original factory settings and all stored data will be deleted Confirm NO retains all stored data and current instrument settings The Factory Default Settings Maximum Sensitivity eFrequency 40 KHz Display Mode Real Time edB Scale Relative Offset Value 0 Text Editor ON ePeak Value Indicator bar graph 0 To select Factory Defaults 1 Make sure the Ultraprobe is off 2 Press click both the Yellow Store button and the Sensitivity dial at the same time then squeeze and hold the trigger When in the first Menu Selection Data Transfer Menu 01 you may move to any of the other Menu Selections by spinning the Sensitivity Control up or down clockwise or counter clockwise Spin to Factory Defaults M
40. ly designed transducer to emit the desired tone and a partial vacuum is created A user then scans all seams for sonic penetration The Tone Test has also been effectively utilized to test tanks before they are put on line piping refrigerator gaskets caulking around doors and windows for air infiltration testing heat exchangers for leaking tubes as a Q C test for automobile wind noise and water leaks on aircraft to test for problems associated with cabin pressure leaks and glove boxes for seal integrity defects UE SYSTEMS provides a variety of optional Warble Tone Generators They are 1 WTG2SP Warble Pipe Tone Generator with a 1 male threaded nipple to adapt to various pipe fittings It is used to test areas where the standard Tone Generators cannot be place such as in small pipes sealed tanks or heat exchangers see optional accessories WTG 2SP 2 UFMTG 1991 Multidirectional Tone Generator has four transducers that cover 360 A Specially designed suction cup enables users to place the unit on a variety of surfaces metal plastic or glass The UFMTG 1991 is used to detect leaks in unusual or large enclosures Some applications include testing bulkheads in ships expansion joints in power plants and windshields in automobiles 19 TRANSFORMERS SWITCHGEAR AND OTHER ELECTRICAL APPARATUS E ELECTRIC ARC CORONA TRACKING DETECTION There are three basic electrical problems that are detected with the Ultraprobe 9000 Arcing An arc o
41. ng In these extreme situations the bearings are usually large 1 2 and up and greased with high viscosity lubricant Most often no sound will be heard as the grease will absorb most of the acoustic energy If a sound is heard usually a crackling sound there is some indication of deformity occurring On most other slow speed bearings it is possible to set a base line and monitor as described FFT INTERFACE The Ultraprobe may be interfaced with FFT s via the UE MP BNC 2 Miniphone to BNC connector or the UE DC2 FFT Adapter The Miniphone plug is inserted into the headphone jack of the Ultraprobe and the BNC connector is attached to the analog in connector of the FFT There are also two accessories that connect to an FFT via the Ultraprobe I O port They are the 5PC MP using a Miniphone connector to the FFT and the 5PC BNC using a BNC connector to the FFT These connectors enable an FFT to receive the heterodyned translated low frequency sound information detected from the Ultraprobe In this instance it can be used to monitor and trend bearings including low speed bearings It can also extend the use of the FFT to record all types mechanical information such as leaking valves cavitation gear wear etc 23 3 GENERAL MECHANICAL TROUBLE SHOOTING operating equipment begins to fail due to component wear breakage or misalignment ultrasonic shifts occur The accompanying sound pattern changes can save time and guesswork in diagnosing pr
42. oblems if they are adequately monitored Therefore an ultrasonic history of key components can prevent unplanned downtime And just as important if equipment should begin to fail in the field the ULTRAPROBE can be extremely useful in trouble shooting problems TROUBLE SHOOTING 1 Use the contact stethoscope module 2 Touch test area s listen through headphones and observe the display 3 Adjust sensitivity until mechanical operation of the equipment is heard clearly and the bar graph can fluctuate 4 Probe equipment by touching various suspect areas 5 If competing sounds in equipment being tested present a problem try to tune in to the problem sound by a Probing equipment until the potential problem sound is heard b Adjust Frequency slowly until the problem sound is heard more clearly 6 To focus in on problem sounds while probing reduce sensitivity gradually to assist in locating the problem sound at its loudest point This procedure is similar to the method outlined in LEAK LOCATION i e follow the sound to its loudest point MONITORING OPERATING EQUIPMENT In order to understand and keep ahead of potential problems in operating equipment it is necessary to establish base data and observe shifts in that data This can be accomplished by data logging readings directly into the Ultraprobe or by recording sounds to a tape recorder by connecting to the Headphone output or to the I O port using the proper cable The heterodyned outpu
43. or PO 001 NOT USED 25dB 40KHz R Data Storage Mode Display TO STORE DATA Click the Store Button again and the data will be stored and displayed on top TO OVERWRITE DATA OR TO ENTER DATA IN A NEW LOCATION Press the yellow Store button to enter the data storage mode Spin the Sensitivity Dial until the desired storage location is displayed on the screen Click the yellow Store Button to store the new information in that location and proceed as described above NOTE When using Ultratrend software it is possible to enter a new reading that is out of sequence by spinning to the last unused memory location as long as all 400 locations are not filled and entering the data as described above Following instructions in Ultratrend a new sequential order can be updated to include the new item s for future inspections TO RETURN TO THE OPERATION MODE Click the Sensitivity Control Dial TO DOWNLOAD THE INFORMATION 9 Refer to Setup Mode 01 Data Transfer TEXT EDITOR TO ENTER TEXT IN THE TEXT FIELD If enabled refer to SET UP MODE 07 Click the Store Button once after storing data The text field will blink If the field has no entry it will display UNKNOWN and the first character will blink The Sensitivity control dial can be used to scroll through the alphabet A Z a space character and then through numbers 0 9 Spin the Sensitivity dial clockwise to move up the alphabet and then to numbers or counte
44. or down clockwise or counter clockwise 4 Spin to Display Mode Menu 05 Blinks 5 Click the Sensitivity Control to enter Display Mode 6 Spin the Sensitivity Control dial until the desired setting Real Time Snap Shot or Peak Hold appears and blinks 7 Click the Sensitivity Control Dial to set and return to Set Up Mode 8 Spin to Exit to PGM Exit to Program Menu 09 blinks Click to enter Operation Mode 05 Select Display Mode Display Mode Display Mode Display Mode Real Time Snap Shot Peak Hold click spin spin 12 06 Calibration Due Date Shown as Cal Due Date in the menu this date is set at the factory and displays the recommended Recalibration service date This is one mode that cannot be changed by a user It is only set at the factory after a service has been performed NOTE This cannot be changed 07 Text Editor Text editor will enable or disable text entry when a reading is to be saved during the operation mode If text notes are to be manually entered select the ON mode If text has been preset in the Ultratrend software or if text entry is not needed select OFF To select Text Editor 1 Make sure the Ultraprobe is off 2 Press click both the Yellow Store button and the Sensitivity dial at the same time then squeeze and hold the trigger When in the first Menu Selection Data Transfer Menu 01 you may move to any of the other Menu Selections by spinning the Sensitivity Control up or down cloc
45. orage Entry Button TRIGGER ON OFF TRIGGER SWITCH The Ultraprobe is always off until the trigger switch is pressed To operate press the trigger To turn the instrument off release the trigger I O PORT This is the RS232 port for upload download information transfer including heterodyned sound output Align the pins from the cable and plug in Note before downloading data be sure the cable is connected to both the I O port and to the computer or other hardware vibration analyzer tape recorder etc This connection may also be used for sound recording vibration analyzer and notebook computer download In this manner the sounds as they are recorded can be simultaneously listened to through the headphones I O CONNECTOR DIAGRAM HETERODYNED OUTPUT TX GROUND HETERODYNED OUTPUT GROUND Kx BATTERY COMPARTMENT The Handle contains the battery Remove the cover to change batteries Note in intrinsically safe models the battery cover screw must be removed before the cover can be removed BATTERY The battery is an environmentally friendly nickel metal hydride with no memory problems A full charge will take 8 hours however you may charge the unit at any time for short intervals or for a longer period If it is kept on charge over 8 hours there will be no harm to the battery NOTE When the effective battery charge is used up the instrument shuts down and a message to recharge the battery will be displayed in t
46. ound created by the turbulence of partial blockage FLOW DIRECTION Flow in piping increases In intensity as it passes through a restriction or a bend in the piping As flow travels upstream there is an increase in turbulence and therefore the intensity of the ultrasonic element of that turbulence at the flow restriction In testing flow direction the ultrasonic levels will have greater intensity in the DOWNSTREAM side than in the UPSTREAM side PROCEDURE 1 Use stethoscope mode 2 Start test in 40 kHz If it is difficult hearing the flow signal adjust the Frequency to 30 kHz or to 25 kHz 3 Begin test at maximum sensitivity level 4 Locate a bend in the pipe system preferably 60 degrees or more 5 Touch one side of bend and note dB reading 6 Touch other side of bend and note dB reading 7 The side with the higher louder reading should be the downstream side NOTE Should it be difficult to observe a sound differential reduce sensitivity and test as described until a sonic difference is recognized 29 ULTRASOUND TECHNOLOGY The technology of ultrasound is concerned with sound waves that occur above human perception The average threshold of human perception is 16 500 Hertz Although the highest sounds some humans are capable of hearing is 21 000 Hertz ultrasound technology is usually concerned with frequencies from 20 000 Hertz and up Another way of stating 20 000 Hertz is 20 kHz or KILOHERTZ One kilohertz is 1 000 Hert
47. r a parabolic reflector which will double the detection distance of the Ultraprobe and provide pinpoint detection The UWC 2000 is recommended for those situations in which it may be considered safer to 20 inspect electrical apparatus at a distance The UWC2000 is extremely directional and will locate the exact site of an electrical discharge Another accessory is the LRM 9 Long Range Module which also increases the detection distance of the Ultraprobe The basic difference is that the LRM is a one hand operation but has a slightly wider detection area 11 versus the UWC 9000 5 2 MONITORING BEARING WEAR Ultrasonic inspection and monitoring of bearings is by far the most reliable method for detecting incipient bearing failure The ultrasonic warning appears prior to a rise in temperature or an increase in low frequency vibration levels Ultrasonic inspection of bearings is useful in recognizing a The beginning of fatigue failure b Brinelling of bearing surfaces c Flooding of or lack of lubricant In ball bearings as the metal in the raceway roller or ball bearing begins to fatigue a subtle deformation begins to occur This deforming of the metal will produce irregular surfaces which will cause an increase in the emission of ultrasonic sound waves Changes in amplitude from the original reading is indication of incipient bearing failure When a reading exceeds any previous reading by 12 dB it can be assumed that the bearing
48. r clockwise to move back through numbers 9 0 and then back down the alphabet Z A To enter click the Sensitivity Control Dial to enter the text character The next location to the right will then blink Continue until through or until all 8 fields are filled If an error in recording a letter or number occurs click the Sensitivity Control Dial and the cursor will move to the right Continue clicking the Sensitivity Control Dial and the cursor will wrap around to the right until the desired location is reached As explained above spin the Sensitivity Control Dial until the corrected entry is displayed and click the Sensitivity Control Dial to enter the text character When the text is correct click the yellow Store Button to save and store the text The instrument will return to the Operation Mode Location 001 Text UNKNOWN Text Editor Display 5 SETUP MODE To enter the Set Up Mode 1 Make sure the Ultraprobe is off 2 Press click both the Yellow Store button and the Sensitivity dial at the same time Only after these two controls have been pressed then squeeze the trigger NOTE Hold the Trigger in during any of the Set Up Mode operations 3 When in the first Menu mode Data Transfer you may move to any of the other Menu modes by spinning the Sensitivity Control up or down clockwise or counter clockwise 4 When the desired Menu mode is reached push Click the Sensitivity Control in 5 You ma
49. s to be checked position the Tone Generator so that it will cover as wide an area as possible by placing it in the middle of the test item How far will the sound travel The Tone Generator is designed to cover approximately 4000 cubic feet 120 cu meters of uninterrupted space This is slightly larger than the size of a tractor trailer Placement is dependent upon such variables as the size of the leak to be tested the thickness of the test wall and the type of material tested i e is it sound absorbent or sound reflective Remember you are dealing with a high frequency short wave signal If the sound is expected to travel through a thick wall place the Tone Generator close to the test zone if it is a thin metallic wall move it farther back and use low For uneven surfaces it may be necessary to use two people One person will move the Tone Generator slowly close to and around the test areas while another person scans with the Ultraprobe on the other side Do not use the Tone test in a complete vacuum Ultrasound will not travel in a vacuum Sound waves need molecules to vibrate and conduct the signal There are no moveable molecules in a complete vacuum If partial vacuum is to be drawn where there are still some air molecules to vibrate then the Tone Test may be implemented successfully In a laboratory a form of the Tone Test is utilized in seal leaks of an electron beam microscope The test chamber has been fitted with a special
50. slow leaks will emit very little ultrasound Compounding the problem is the fact that earth will tend to insulate ultrasound In addition loose soil will absorb more ultrasound than firm soil If the leak is close to the surface and is gross in nature it will be quickly detected The more subtle leaks can also be detected but with some additional effort In some instances it will be necessary to build up pressure in the line to generate greater flow and more ultrasound In other cases it will be necessary to drain the pipe area in question isolate the area by valving it off and inject a gas air or nitrogen to generate ultrasound through the leak site This latter method has proven very successful It is also possible to inject a test gas into the test area of the pipe without draining it As the pressurized gas moves through the liquid into the leak site it produces a crackling sound which may be detected PROCEDURE 1 Use contact stethoscope module 2 Start Frequency Selection at 20 25kHz 3 Touch surfaces over ground DO NOT JAM probe to ground Jamming can cause probe damage In some instances it will be necessary to get close to the source of the leak In this situation use a thin sturdy metal rod and drive it down close to but not touching the pipe Touch the contact probe to the metal rod and listen for the leak sound This should be repeated approximately every 1 3 feet until the leak sound is heard 28 To locate the leak ar
51. t and just downstream of the valve see Confirming Valve Leakage In Noisy Pipe Systems PROCEDURE FOR VALVE CHECK 1 Use stethoscope module 2 Touch downstream side of valve and listen through headset 3 Start test at 40 kHz If the sound appears weak or confusing change the frequency As an example try to test at 30 kHz then 20 kHz 4 When necessary if there is too much sound reduce sensitivity 5 For comparative readings usually in high pressure systems a Touch upstream side and reduce sensitivity to minimize any sound b Touch valve seat and or downstream side c Compare sonic differentials If the valve is leaking the sound level on the seat or downstream side will be equal to or louder than the upstream side 6 In some instances such as in noisy background or low viscosity fluids it will be helpful to adjust the frequency to adequately interpret valve sounds To do this a Touch upstream of the valve and in the Frequency Select Mode gradually spin the Frequency until the stray signals are minimized or until the desired fluid flow is heard clearly b Touch the upstream side valve seat downstream sides as described above and compare differences 27 ABCD METHOD The ABCD method is recommended to check for the potential of competing ultrasounds downstream that may carry back to the area of inspection and give a false indication of a valve leak For the ABCD method 1 Refer to steps 1 5 above 2 Mark two equ
52. t can be downloaded to a spectral analysis program in a computer PROCEDURE Select key locations to be monitored and make permanent reference marks for future testing Follow steps 1 2 as outlined above in the Trouble Shooting section Select a frequency for each test spot Save by hitting yellow store button refer to Operation Mode Yellow Store Button for description TEU Ni NOTE In diagnosing any type of mechanical equipment it is important to understand how that equipment operates Being able to interpret sonic changes is dependent on a basic understanding of the operations of the particular equipment being tested As an example in some reciprocal compressors the diagnosis of a valve problem in the inlet manifold is dependent on recognizing the distinctive clicking sound of a good valve vs the muffled click of a valve in a blow by mode In gearboxes before missing gear teeth may be detected as an abnormal click the normal sounds of gears must be understood In pumps certain pumps will have surges which may confuse inexperienced operators by the constant shifting of the intensity levels The surge pattern must be observed before a lower consistent bar graph reading can be recognized as the true reading 24 4 LOCATING FAULTY STEAM TRAPS An ultrasonic test of steam traps is a positive test The main advantage to ultrasonic testing is that it isolates the area being tested by eliminating confusing background noises user
53. traprobe at 40 kHz A continuous warbling sound should be heard If a beeping is heard instead then a full recharge of the Warble Tone Generator is indicated TO CHARGE THE WARBLE TONE GENERATOR Plug recharger cable into recharger jack on the Warble Tone Generator and then plug the recharger into a wall receptacle e Make sure that the LED on the charger is lit when recharging The LED turns OFF when the battery is charged HELPFUL HINTS Before you begin your inspection activities it is suggested that you review the applications section to become familiar with the basic inspection methods Here are some helpful hints that should prove useful in some difficult situations If you can t read your display panel while testing Trigger release Trigger method Take the reading while holding the trigger in Immediately press the STORE button and the reading will be set If you do not wish to save the reading click the Sensitivity dial and return to Operation Mode NOTE The instrument turns off within 5 seconds if the trigger control switch is not held in Snap Shot Method If you know you are going to be in a situation where you won t be able to read the display panel go into Set Up Mode and spin to Display Mode Menu 5 Select Snap Shot and return to Operation Mode This will hold your reading even while you continue to hold the trigger in For a quick grab take a reading press the trigger in to hold it For an update or new read
54. ue This is a Reference dB Level 12 e Display Mode 12 e Calibration Due Date 13 e Text Editor 13 e Factory Defaults 13 e Exit To Program 14 6 User Instructions 14 e Trisonic Scanning Module 14 e Method of Airborne Detection 14 e Headset 14 e Rubber Focusing Probe 14 e Stethoscope Module 14 e Stethoscope Extension Kit 14 e Charging The UP9000 14 Warble Tone Generator 15 e Charging The Warble Tone Generator 15 e Helpful Hints 15 Auto Shutdown Battery Feature 15 e Resetting The On Board Computer 15 7 Applications Leak Detection How to Locate Leaks Shielding Techniques Low Level Leaks 16 18 Tone Test Ultratone 18 19 Electric Arc Corona Tracking Detection 20 21 Monitoring Bearing Wear 21 Detecting Bearing Failure 22 Comparative amp Historical Testing 22 Lack of Lubrication 23 Over Lubrication 23 Slow Speed Bearings 23 FFT Interface 23 General Mechanical Trouble Shooting 24 Locating Faulty Steam Traps 25 Traps Inverted Bucket Float amp Thermostatic Thermodynamic Thermostatic 26 Inspecting Valves 27 ABCD Method 28 Leakage Behind Walls 29 Partial Blockage 29 Flow Direction 29 Ultrasound Technology 30 Instructions for Setting Combination Lock On Carrying Case 31 WELCOME TO THE WONDERFUL WORLD OF AIRBORNE ULTRASOUND INSPECTION Congratulations you are about to experience the ultimate in airborne structure borne ultrasonic inspection Your Ultraprobe 9000 is equipped with features that will help you inspe
55. und has to travel through the less accurate the reading will be Therefore be sure the contact probe is actually touching the bearing housing If this is difficult touch a grease fitting or touch as close to the bearing as possible 4 Approach the bearings at the same angle touching the same area on the bearing housing 5 Reduce sensitivity to hear the sound quality more clearly 6 Listen to bearing sound through headphones to hear the quality of the signal for proper interpretation T Select same type bearings under similar load conditions and same rotational speed 8 Compare differences of meter reading and sound quality PROCEDURE FOR BEARING HISTORY HISTORICAL Before starting with the HISTORICAL method for monitoring bearings the COMPARATIVE method must be used to determine a baseline 1 Use basic procedure as outlined above in steps 1 8 2 Save the reading for future reference 3 Compare this reading with previous or future readings On all future readings adjust frequency to the original level If the decibel level has moved up 12 dB over the base line it indicates the bearing has entered the incipient failure mode Lack of lubrication is usually indicated by an 8 dB increase over baseline It is usually heard as a loud rushing sound If lack of lubrication is suspected after lubricating retest If readings do not go back to original levels and remain high consider bearing is on the way to the failure mode and re
56. y and not blink If the frequency indicator is blinking click in the sensitivity control dial until the frequency indicator is steady and the decibel indicator blinks This indicates that you are now able to adjust the sensitivity Once in the Sensitivity mode turn the Sensitivity control dial clockwise to increase the sensitivity and counter clockwise to decrease the sensitivity The Sensitivity control dial increases decreases the sensitivity of the instrument simultaneously with the sound level in the headphones NOTE the instrument needs to be in range for accurate testing If the sensitivity is too low a blinking arrow pointing to the right will appear and there will be no numeric decibel visible in the display panel If this occurs increase the sensitivity until the arrow disappears in low level sound environments the arrow will blink continuously and It will not be possible to achieve a dB indication until a higher intensity level is sensed If the sensitivity is too high a blinking arrow pointing to the left will appear and there will be no numeric decibel visible on the display panel Reduce the sensitivity until the arrow disappears and the numeric decibel value is shown NOTE The blinking arrow indicates the direction in which the Sensitivity Control Dial is to be turned The Sensitivity Control Dial controls the bar graph display Each click of the sensitivity dial changes the sensitivity volume by 1 dB TO ADJUST THE FRE
57. y spin to enter and exit any Menu mode in the Set Up mod as long as the trigger on off switch is pressed 01 Data Transfer NOTE Before downloading data be sure the Ultraprobe is connected to the computer To download data from the Ultraprobe to your computer 1 Follow steps 1 3 in Set Up Mode 2 The first selection to be displayed on the screen will be Menu 01 Data Transfer 3 Click the Sensitivity Control Dial and all the data will be transferred to the PC NOTE For software management refer to Ultratrend Instructions Menu 01 Select Data Transfer 10 02 Set Time and Date 1 2 Menu Make sure the Ultraprobe is off Press click both the Yellow Store button and the Sensitivity dial at the same time then squeeze and hold the trigger When in the first Menu Selection Data Transfer Menu 01 you may move to any of the other Menu Selections by spinning the Sensitivity Control up or down clockwise or counter clockwise Spin to Set Time and Date Menu 02 blinks and click in EXIT Blinks Spin to desired month or day or year and Click selected number will blink rapidly Spin to select a new value Click to set Spin to TIME setting and click on either Hour or Minute the displayed number will blink rapidly Once an hour or minute has been selected spin to select a new value Click to set When through Spin the Sensitivity Control until EXIT flashes Click the Sensitivity Control
58. z Since ultrasound is a high frequency it is a short wave signal Its properties are different from audible or low frequency sounds A low frequency sound requires less acoustic energy to travel the same distance as high frequency sound Fig A The ultrasound technology utilized by the Ultraprobe is generally referred to as Airborne ultrasound Airborne ultrasound is concerned with the transmission and reception of ultrasound through the atmosphere without the need of sound conductive interface gels It can and does incorporate methods of receiving signals generated through one or more media via wave guides There are ultrasonic components in practically all forms of friction As an example if you were to rub your thumb and forefinger together you will generate a signal in the ultrasonic range Although you might be able to very faintly hear the audible tones of this friction with the Ultraprobe it will sound extremely loud The reason for the loudness is that the Ultraprobe converts the ultrasonic signal into an audible range and then amplifies it Due to the comparative low amplitude nature of ultrasound amplification is a very important feature Although there are obvious audible sounds emitted by most operating equipment it is the ultrasonic elements of the acoustic emissions that are generally the most important For preventative maintenance many times an individual will listen to a bearing through some simple type of audio pick up

Alpine Ultraprobe 9000 User's Manual

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