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Gen II

User Manual

8-24 – Tail Rotor Balance

Chapter 8

Revision 3.00, April 2020

(below top). The second gives the influence co-efficient and phase angle rotation changes for
each run (below bottom). Any additional charts will have similar screens to view. Pressing
[F5] “Continue” will progress through all available screens for all conditions.

When returned to the “View T/R Balance” screen, paragraph 8.4.1, press [OK] to return to
the “Manage Data” screen.

8.5.

– Resume Job

The features in this section are common among all jobs. Because of this, they are contained
in Chapter 3, “Using the Gen II Analyzer”.

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Summary of Contents for Viper II

Page 1: ...I Analyzers ACES Systems TEC Aviation Division Document Number 4041 OM 01 Revision 6 00 April 2020 Part Number 10 300 4041 10737 Lexington Drive Knoxville TN 37932 3294 USA Telephone 865 671 2003 Fax...

Page 2: ...tion purposes TEC makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose TEC shall not b...

Page 3: ...Case 2 9 2 4 4 USB Memory Device 2 9 2 5 Optional Equipment 2 10 2 5 1 USB Keyboard 2 10 3 Using the Gen II Analyzer Rev 2 10 Apr 2020 3 1 Entering Data 3 1 3 1 1 Using the Keys 3 1 3 1 2 Filling in F...

Page 4: ...7 21 7 2 3 Connect Sensors 7 22 7 2 4 Select Aircraft Condition 7 24 7 2 5 Data Acquisition 7 25 7 2 6 Review Prior Runs Data 7 26 7 2 7 Solution Screens 7 27 7 3 Main Rotor Manage Data Functions 7 31...

Page 5: ...up 9 3 9 1 2 Sensor Information Screen 9 7 9 1 3 Transient Balance Speeds Screen 9 8 9 1 4 Define Class Wts Screen 9 10 9 1 5 Balance Plane Information Screen 9 13 9 1 6 Label Detail Wt Holes Screen 9...

Page 6: ...only Rev 2 20 Apr 2020 12 1 Honeywell Performance 12 1 12 1 1 Necessary Equipment 12 1 12 1 2 Analyzer Operation 12 5 12 1 3 Information Screens 12 14 12 2 Manage Jobs 12 17 12 2 1 Review 12 18 12 2...

Page 7: ...4 23 14 2 Resume Job 14 24 14 3 Manage Jobs 14 25 14 4 Manage Setups 14 25 15 Overall Vibration Survey Rev 4 10 Apr 2020 15 1 Start Job 15 1 15 1 1 Overall Vibration Setup 15 3 15 1 2 Job Identificati...

Page 8: ...tion 22 11 22 3 3 Analyzer Owner Information 22 12 22 3 4 Battery Information 22 14 22 4 Analyzer Legal Information 22 15 22 4 1 Analyzer Terms and Conditions 22 15 22 4 2 Open Source Components 22 17...

Page 9: ...ilable Function Keys 24 7 24 3 6 Status Messages 24 8 24 3 7 RPM Warnings 24 8 24 3 8 Multiple Vibration Channels 24 8 24 3 9 Reviewing Polar Charts During and After a Job 24 9 24 3 10 Available Funct...

Page 10: ...lp you overcome common application difficulties whenever possible For technical support please feel free to contact the home office or complete the online form found at https www acessystems com conta...

Page 11: ...the TEC factory in any way which may have impaired its safety operation or efficiency or to any product that has been subjected to accidental damage NOTE Annual calibration by TEC or a TEC authorized...

Page 12: ...d as calibrated by a sticker stating the date of calibration and next due date of calibration A certificate of calibration will be provided to you to verify compliance to inspectors A permanent record...

Page 13: ...ison Analyzer Versions Analyzer Functions Cobra II Viper II Propeller Balance Main Rotor Track Balance Tail Rotor Balance Transient Balance Fan Turbine Balance Fan Blade Mapper Honeywell Performance w...

Page 14: ...manual for details on creating reports The analyzer also has a USB port to allow you to transfer the vibration survey spectra and balance reports directly to a USB flash drive for storage review or p...

Page 15: ...functions to rapidly configure the analyzer based on the information contained in the Setup The term Job as used in this manual means the stored Setup information plus the collected balance vibration...

Page 16: ...Tracker as used in this manual refers to the ACES Systems Model 550 TraXTM The term Forward Looking Aft abbreviated as FLA with regard to the perspective used to orient equipment during the setup or...

Page 17: ...l 2020 This chapter gives you a brief tour of the analyzer It describes the various keys and their functions the input and output ports and the standard accessories supplied with the analyzer Optional...

Page 18: ...will remain constant There is an additional Power off Timeout feature available that will power the analyzer off completely after a period of inactivity This feature is also described in Chapter 22 Th...

Page 19: ...ay between Day and Night mode Day mode is enabled by default and makes the screen easier to see in daylight conditions Night mode is designed to increase the contrast between the background and text o...

Page 20: ...apidly and then stop for two seconds The letter N should appear on the screen The BACKSPACE key is used to clear input in the current field When only the cursor is displayed this key will delete only...

Page 21: ...TFT display is how the analyzer communicates with the user The screen displays messages menus selection lists graphic illustrations and survey plots The display has an LED backlight with adjustable b...

Page 22: ...as the input for a single plane balance job The six pin connector enables the analyzer to provide sensor power as required to the sensor being used 2 3 1 2 TACH Ports The TACH inputs are three pin fem...

Page 23: ...ional input output ports are provided on the left panel of the analyzer They are the 18 28V DC IN and STRB JEDA ACCY Viper II or STRB ACCY Cobra II not pictured ports STRB JEDA ACCY 18 28V DC IN 2 3 2...

Page 24: ...These ports can accept standard USB peripherals such as USB Memory Devices and Wired USB Keyboards It is designed to work with accessories with a direct wired connection between the analyzer and the...

Page 25: ...ase with a mild soap solution and coat with an ARMOR ALL type protectant to preserve appearance ARMOR ALL is a registered trademark of the Clorox Company The case is designed to be airtight with the i...

Page 26: ...this application many accessories are available that are too numerous to list concisely in this manual 2 5 1 USB Keyboard A USB Keyboard can be used to speed entry of data into the analyzer To use si...

Page 27: ...w keys to place the cursor in the desired field Press the key one time and the first character of the key should appear in the active field To generate the second character on a multi character key pr...

Page 28: ...described in the previous section If you wish to change text already in place in these fields place the cursor in the field you wish to change then press the BACKSPACE key once for each character in t...

Page 29: ...ick on the Technical Library link as shown below In the Technical Library page you may use the Filter Results drop down lists Simply click on the Bold Type headers and click in the checkbox es to narr...

Page 30: ...op up menu you can select the Save button and the E Setup will be saved in your Downloads folder by default Alternatively you can click the down arrow on the right side of the Save button and select S...

Page 31: ...lyzer and insert it into a USB port on the computer When the device opens select the aces_export folder from the memory stick and open it Copy the necessary setup and paste a copy into the aces_setups...

Page 32: ...Management menu select Database Management Select Import Setups from USB Drive and press OK If an existing setup with the same name as the setup you are importing exists you will be asked if it is ok...

Page 33: ...n the analyzer is turned on See the following figure From this menu you may access all functions of the analyzer by using the available menu choices Chapters 4 through 22 of this manual describes each...

Page 34: ...t hand portion of the display is separated from the majority of the display with a line The screen to the left of this line is reserved to display various status messages describing different states o...

Page 35: ...within a Main Menu Job function displays the Incomplete Jobs list Only jobs that are left unfinished will appear in the list and will be preceded by an I inside a box Using the key highlight the job y...

Page 36: ...apter 3 Revision 2 10 April 20 3 4 3 Manage Jobs Selecting Manage Jobs from within a Main Menu Job function presents several sub menu choices as shown below These choices allow you to manage previousl...

Page 37: ...n screen viewing Incomplete jobs will be preceded by an I inside a square When viewing is complete press the F0 Back Up key to exit the screen The analyzer will then return you to the Manage Jobs menu...

Page 38: ...the report the page number and status bar will update After the report is created the screen will change to indicate that the process is complete Also the left hand side of the screen Pending Reports...

Page 39: ...ending reports which will be transferred to the USB memory device then stored in the aces_reports folder of the USB memory device Whenever reports are pending the F1 Xfer Rpt button is visible as show...

Page 40: ...move the USB memory device to a computer you can open or print the reports on the computer without the need for any additional software provided the computer has a PDF reader installed The reports wi...

Page 41: ...t be presented with a list of available jobs After selecting the job you want to delete or when selecting to Delete All jobs you will be asked to confirm your selection Press either F1 Yes to continue...

Page 42: ...cting the Export option presents a list of stored jobs on the Export Job to USB banner screen From the list you may choose a job to be exported directly to a USB flash drive The exported job file is s...

Page 43: ...ng the Gen II Analyzer Chapter 3 Revision 2 10 April 20 When the export is complete the screen will display the Operation Complete message Press the F5 Continue key to return to the Export Job to USB...

Page 44: ...stored in the analyzer 3 4 4 1 Edit Selecting the Edit function displays the Setup List screen Select the setup you wish to edit and press OK The Edit Setup screen will be displayed giving you three o...

Page 45: ...job function Setup screen Edit the setup as necessary and press OK to store and exit the edited setup screen Refer to the applicable paragraph in Chapters 4 through 15 for detailed instructions on ho...

Page 46: ...report creation is complete the message Report created will appear In addition the Pending Reports value will increase by one indicating there is another report ready for transfer to the USB flash dr...

Page 47: ...l setup for deletion After making your selection you will be asked to verify your intent to delete the selected setup by pressing the F1 key for Yes or the F5 key for No NOTE We highly recommend you c...

Page 48: ...xported directly to a USB flash drive The exported setup file is saved in a tgz format and can be uploaded into another analyzer or used to aid ACES Product Support when assisting customers When the e...

Page 49: ...it is strongly recommended that you format them with a FAT32 file system as described in Chapter 22 Analyzer Management The files located on your USB flash drive will vary but can include those folder...

Page 50: ...cation contains jobs that you want to import into the analyzer s memory You will manually copy files into this location for later import Files can be obtained from another analyzer or a previous expor...

Page 51: ...on matches the analyzer and serial number into which the USB flash drive is plugged the menu items described in the license file will become active and visible on the analyzer s Main Menu To purchase...

Page 52: ...wn below Each of the listings on this banner screen menu is an option within the function Descriptions of each of these options follow along with the information required to complete the menu screens...

Page 53: ...operation 991D 1 Accelerometer Although the Gen II analyzers will support a full range of vibration sensors the 991D 1 accelerometer see the illustration below was selected as the standard for use wit...

Page 54: ...Phototach an ACES Systems LASETACH or an interface for optional speed sensors such as a magnetic pickup or pulse generator The cable is a three wire shielded cable insulated in a bright yellow petrole...

Page 55: ...to the vibration sensor or reflective tape both methods are described in more detail below Using the Propeller Protractor For correct use of the protractor when measuring relative to the vibration sen...

Page 56: ...opposed engine Attach the adapter nut end to the exposed case bolt threads then slide the right angle mount over the stud end and secure with the supplied nut Two sets of the adapters are required fo...

Page 57: ...performance under varied operating conditions Using a lower quality tape will cause inaccurate tachometer readings or unreliable phase information The tape is manufactured by the 3M Company and is th...

Page 58: ...ting a new job with no setups previously defined in the analyzer s memory 2 starting a new job with previously defined setups available in the analyzer s memory or 3 resuming an incomplete job being h...

Page 59: ...he actual setup names will be those which you have entered into your analyzer If you are resuming an incomplete job being held in the analyzer s memory the opportunity to do so is presented immediatel...

Page 60: ...data 4 1 1 1 Propeller Balance Setup Screen To complete the Prop Balance Setup banner screen as shown below do the following 4 1 1 1 1 In the Name field enter a name for this setup using the keypad R...

Page 61: ...ned locations or holes where trim balance weights can be added If you select Yes a page for defining the angle of each hole will be provided The No answer indicates that no predetermined locations are...

Page 62: ...as viewed standing Forward of the propeller Looking Aft FLA toward the tail of the airplane 4 1 1 1 14 Using the key move to the Tach Type field Using the key select the type of tachometer you are us...

Page 63: ...D according to which of the analyzer s input channels you intend to use The default for single sensor input is Channel A Use the key to make the selection If you are conducting a two sensor balance ch...

Page 64: ...all fields set at 0 and press the F0 Back Up key This sets the ICF at the default for the known conditions The ICF default value is added automatically when the Setup is created The user may press thi...

Page 65: ...e the F3 key Pressing the F3 key will display additional function key options giving you the option to press F1 Avg Def to set the averaged ICF to the default ICF pressing F2 Def by HP to return the I...

Page 66: ...is setup in paragraph 4 1 1 1 199 above 4 1 1 3 1 This is an information only screen for use in verifying the parameters of the vibration sensor you have chosen You may not edit or otherwise enter inf...

Page 67: ...ollowing 4 1 1 4 2 Use the key to move to the No of Holes field Enter the number of holes that correspond to the total number of trim weight mounting locations The valid range of values for this field...

Page 68: ...hole number 1 as viewed from the front of the engine looking aft To determine this angle do the following With mag switches OFF rotate the propeller so the tachometer triggering device magnetic inter...

Page 69: ...of each hole number and record that angle adjacent to the hole number See the example Prop Hole Layout Setup screen shown at the beginning of the section For example if the number 1 hole is near the 6...

Page 70: ...Depending on whether or not you made use of predetermined hole locations you may have also defined values for a number of trim weight mounting holes If these steps have been completed then the Job Ide...

Page 71: ...ormation screen will be displayed Information on this screen is optional but will appear on the job report if entered The function keys across the bottom of the screen will appear after an entry in a...

Page 72: ...target blade will produce the best results Connect the tachometer cable to the Phototach connector Route the cable away from hot areas and electrical equipment back to the cockpit and attach to the t...

Page 73: ...tach illuminate and extinguish as the tape crosses the beam This indicates the position of the tape is correct Remove the tape backing and attach the reflective tape to the propeller at that location...

Page 74: ...anner screen shown above with the statement to Perform a FOD check and start engine s per flight manual Start the engines and establish normal operating conditions When normal operating conditions are...

Page 75: ...the values outlined in Chapter 24 paragraph 24 2 5 RPM Warnings Once you have reached your target RPM press OK to continue The screen changes to display the Run x banner screen See the figure below T...

Page 76: ...r when a minimum number of consistent samples have been collected and it is ok to stop data acquisition If you are conducting a two 2 engine balance this process will be repeated for the second engine...

Page 77: ...3 Retake All key if balancing two engines This option returns you to the Set Engine Speed banner screen see paragraph 4 1 6 above The data can be viewed in a polar chart format by pressing the F4 Pola...

Page 78: ...n on for the data collection phase of the job on the first run This option will only be available if Holes field was selected to Yes If the previous trim balance weights were left on press the F1 Yes...

Page 79: ...alance Solution banner screen will be displayed as described in paragraph 4 1 8 1 below If the Holes field was set to Yes the Prop Suggested Installed Weights banner screen will be displayed as descri...

Page 80: ...installed weight be totally replaced In some cases this may mean removing and reapplying weight at the same or near the same location Failure to remove previously installed weight prior to applying th...

Page 81: ...e on each side of the 270 degree location and enter them in the two fields Use the key to move between the fields Press OK to continue The screen displays the Record Split Weights banner screen like t...

Page 82: ...ed and Installed In the example screen shown above the Suggested solution is 20 4 180 which means the analyzer suggests 20 4 grams g of weight at 180 degrees from the index point see Page 4 4 on how t...

Page 83: ...ious run must be removed The remove weight message will be repeated for every run and solution Each new solution dictates that the previously applied solution installed weight be totally replaced In s...

Page 84: ...w you to complete 6 runs in attempts to balance If the balance job is not completed by the sixth run you should suspect possible problems with your technique or mechanical faults with the engine and o...

Page 85: ...when balancing without predetermined hole locations as explained in Paragraph 4 5 below The selection field below the Current Vibration line allows you to use the or keys to select a next action for...

Page 86: ...ume Job The features in this section are common among all jobs Because of this they are contained in Chapter 3 Using the Gen II Analyzer 4 3 Manage Jobs The features in this section are common among a...

Page 87: ...use of this they are contained in Chapter 3 Using the Gen II Analyzer 4 5 Weight Calculator CAUTION If test weights were used on the spinner they must be removed before installing any permanent weight...

Page 88: ...t of pressing the Wt Calc key on the Vibration Summary screen In the Solution Angle line enter the angle of the installed test weight Use the same method that you used for placing the test weight This...

Page 89: ...ion solution in this case 80 Grams 189 degrees is displayed at the top of the screen The next line states Enter New Location Use the keypad to complete the next two fields Angle 1 and Angle 2 Locate t...

Page 90: ...ew Main Polar view explanation in Chapter 24 Lucas 2 17 2016 2 00 Major rewrite generalizing the manual to cover both the Viper II and Cobra II This chapter was updated with screenshots and correction...

Page 91: ...Chapter 5 RESERVED Revision 1 00 Dec 2014...

Page 92: ...Chapter 6 RESERVED Revision 1 00 Dec 2014...

Page 93: ...t by looking at each of the chart forms found in the main rotor section then by using these forms to create an actual setup 7 1 Main Rotor Setup This section covers the complete setup process in the G...

Page 94: ...analyzer The value selected for this field determines which analyzer channel will be used to measure and display the vertical vibration 7 1 1 3 Use the key to move to the Lateral Chan field Use the ke...

Page 95: ...ill allow data collection at less than the RPM chosen in the setup Example This feature would be set to NO when an aircraft requires data collection at both 70 NR and 102 NR 7 1 1 12 Press the key and...

Page 96: ...device specific instructions can be found in the Model 550 TraXTM Operational Supplement ACES P N 75 900 4043 7 1 2 1 In the Rotor Diameter block use the keypad to enter a number between 1 00 and 999...

Page 97: ...ber between 30 and 90 degrees 7 1 2 7 Tracking Planes information is only visible if four or more even number blades are selected in the Main Rotor Setup page This field is used to designate the numbe...

Page 98: ...r is entered in an ID field the setup will require an electronic chart be defined and will result in corrections being given for that measurement vs condition o If the same ID number is given to more...

Page 99: ...alyzer to present solutions Track splits must be 0 25 inches 6 35mm or greater for the analyzer to present a solution 7 1 3 1 Conditions Setup Screen Example 2 In the example main rotor condition setu...

Page 100: ...ed on this average The recorded track split for FLT 80 and FLT 120 will also be averaged with a second solution based on this average This is an example of a setup for use on an aircraft that requires...

Page 101: ...ach of the movement types Weight Weight adjustments should always be entered as the addition of weight Sweep Select FWD or AFT for the direction of blade movement if adjusting lateral balance using sw...

Page 102: ...2 3 2 Analyzer Version Information When completed press OK 7 1 5 Chart Definition The final step in the setup process is to define the electronic chart forms as described in paragraph 7 7 below Analyz...

Page 103: ...Gen II User Manual 7 11 Main Rotor Track Balance Chapter 7 Revision 3 00 Apr 2020 Rotor diameter 37 0 Feet Lead lag units are read in inches Rotor speed 385 RPM...

Page 104: ...hannel B The type of vibration sensor chosen for this setup is the 991D 1 The type of tachometer source for this setup is the Mag P U The tachometer channel for this setup is channel 1 Number of weigh...

Page 105: ...bration will be measured and recorded for this setup Press OK to proceed to the next screen 7 1 6 2 Tracking Setup Screen Enter 37 00 in the first block using the keypad Select ft for units of rotor d...

Page 106: ...and FLT120 One lateral chart has been identified for the lateral measurement in Hover only The vibration Target for Vertical measurements has been set at 0 20 IPS for Ground and Hover and set at 0 10...

Page 107: ...e FWD moving a blade UP using either pitch change links or tabs The solution logic has been set to MAX and will present the solution related to the highest vibration readings attained for the vertical...

Page 108: ...left as None Max ICF Update is 50 Rotation is 45 degrees The type of adjustment applied in accordance with this chart is pitch change link in flats therefore FLT has been entered The influence co effi...

Page 109: ...e The chart type is Regular This chart uses no sweep adjustments and is therefore left as No No Adjustment Blade Pos is left as None Max ICF Update is 50 Rotation is 45 degrees The type of adjustment...

Page 110: ...e a sweep adjustment for balancing it is not the only type of adjustment used and therefore requires this entry to be left set as No No Adjustment Blade Pos is left as None Max ICF Update is 50 Rotati...

Page 111: ...s adjustment per 1 0 IPS vibration The Move line for this position is 5 30 When completed press OK to save and exit this setup 7 2 Main Rotor Balance Process The following paragraphs present the main...

Page 112: ...ining a setup If you have previously saved setups stored in the analyzer s memory a screen displaying the list of setups will be displayed You can then select a setup from this list to use for the job...

Page 113: ...OK If the setup you need is not present press the F1 New key to proceed to the Main Rotor Setup screen to define a new setup Use the F2 key to view detailed information about the setup Job Identificat...

Page 114: ...use the vibration sensor installation locations as specified by the applicable polar charts The orientation of the sensor is key to the accuracy of the chart if the sensor is installed in a direction...

Page 115: ...the vibration results from the first applied correction While still in the Connect Sensors banner screen a message is presented near the bottom that reads Tach Power is On The Block directly below thi...

Page 116: ...the current run and direct you to shut down the aircraft 0 If during the current run the F2 Adjust key becomes visible the analyzer has collected enough information to present a solution The solution...

Page 117: ...high When the amplitude reaches a lower level Approx 0 05 IPS the error value may remain high This is a normal response and is not cause for alarm Press the F1 Reset key to restart the measurement an...

Page 118: ...rent run Always observe the run number and condition name at top of the screen to identify the data you are viewing This screen also offers a chance to retake the measurements Press the F1 Retake All...

Page 119: ...ext solution will be the best course of action The analyzer will present all of the solutions that are possible from the data gathered for the current run This means that it is possible for the analyz...

Page 120: ...e applied is LFL or Lateral Flats of a damper sweep The line at the bottom of the screen serves as a reminder that a positive suggested solution equals adding weight Sweep Aft Blade pitch link up and...

Page 121: ...close the job and not allow resuming at a later time If you wish to stop the job temporarily press the Main Menu key or simply turn the analyzer off When you have finished entering the adjustments per...

Page 122: ...esponsibility to adjust the amount either up or down to achieve a quantifiable adjustment Remember that the analyzer will update the influence co efficient between every run based on the vibration res...

Page 123: ...efficient for the job The following paragraphs will describe these new screens and how to navigate through them to review this information 7 3 1 Main Rotor Review Job Upon selecting to review a job th...

Page 124: ...itional navigation instructions for the Polar Chart view 7 3 2 View Main Rotor Track and Balance The View Main Rotor Track and Balance screen appears as shown above This screen presents both the sugge...

Page 125: ...ment ratio of each blade position Pressing the or keys will toggle between multiple chart types if more than one is defined for the setup Press the F1 key to ViewMeas and return to paragraph 7 3 1 Pre...

Page 126: ...hart ICFs screen shows how the influence coefficient magnitude and rotation was changed as a result of the correction made on each run Because the analyzer continues to learn between runs it is very i...

Page 127: ...Resume Job The features in this section are common among all jobs Because of this they are contained in Chapter 3 Using the Gen II Analyzer 7 5 Manage Jobs The features in this section are common amo...

Page 128: ...ggle between Regular and Irregular in the Chart Type field then pressing the key to move to the next field The remaining fields in the screen will automatically change if necessary The tracking influe...

Page 129: ...eight positions have the same ICF and type of adjustment and all move lines are equally spaced around the chart Using this chart follow the example below to properly define a Regular main rotor chart...

Page 130: ...to be placed in the setup Adj Unit Using the keypad enter a three letter designator for the type of adjustment utilized by the chart In this case PLT has been entered to represent plates The designat...

Page 131: ...rotor balance chart shown to the right presents two different types of adjustments the addition of weight to target or blank and sweeping either the target or blank blade aft The ICF is different for...

Page 132: ...uses 45 degrees With 45 degrees selected any move line that falls more than 45 degrees outside of the expected vector for a given adjustment and the analyzer will not update the ICF Using the keypad e...

Page 133: ...used to move a blade 1 0 unit of measure at the condition listed Conditions The condition name will be automatically entered and is not editable Adjustment Name Using the keypad enter a three characte...

Page 134: ...a particular blade during a track and balance job An optimized solution is provided by the analyzer that requires no adjustments to the designated No Adjustment Blade Press OK to save the setup Revis...

Page 135: ...ach of the chart forms found in the tail rotor section then by using these forms to create an actual setup 8 1 Tail Rotor Setup The following paragraphs illustrate each of the screens necessary to def...

Page 136: ...using the key Press the key to move to the Tach Position field Using the key select the tachometer position in hours for the majority of aircraft enter 12 o clock regardless of the actual clock positi...

Page 137: ...y be used for balancing the tail rotor you may enter it in this block This is the total amount of balance weight allowable not the limit of each balance position If the Installed Weights for a single...

Page 138: ...ion as 5 0 grams adjustment per 1 0 IPS vibration and the move line of 10 00 using the keypad Press the key and enter the third weight position name of BLANK Using the key to change fields enter the i...

Page 139: ...tlined in paragraph 8 1 1 to complete the Tail Rotor Setup screen as shown in the screenshot above When finished with the main setup screen press OK 8 2 2 Tail Rotor Condition Setup Screen The name fo...

Page 140: ...g names and chart IDs until all conditions are defined Press the key and if there is more than one chart ID specified the Soln toggle field will appear The three choices are All Max and LSQ Least Mean...

Page 141: ...A B Target The Tail Rotor Chart Setup screen for the first condition 80 appears next Using the tail rotor polar chart above fill in the appropriate information as follows The name for the chart 80 ha...

Page 142: ...ARGET blade as 12 00 Press the key and enter the second weight position name of A Press the key and enter the Add move line for weight placement on the A blade as 3 00 Press the key and enter the next...

Page 143: ...key and enter the number of weight positions using the keypad This example uses 4 weight positions Press the key to enter the grams per IPS influence for the tail rotor This example uses 100 00 grams...

Page 144: ...he user with the data acquisition and correction capabilities of the Gen II analyzers Prior to starting a new tail rotor balance job you must first select the Tail Rotor Balance option from the main m...

Page 145: ...analyzer will present a message prompting you to verify that you wish to finish the incomplete job or begin a new job The screen will display the message The last job performed is incomplete Do you wa...

Page 146: ...nformation is optional but it is suggested that at least a customer name be entered as it will aid in identifying the job for future use If the analyzer has been used previously a list of customer nam...

Page 147: ...o the accuracy of the chart If the sensor is installed in a direction other than that specified the phase clock angle will be incorrect and any solution will not be accurate Tach Power need not be ON...

Page 148: ...uire data This screen will only appear in Multiple Condition balance runs In a single condition run the next screen to appear is the Data Acquisition screen proceed to paragraph 8 3 7 Use the key to h...

Page 149: ...long as the error continues to decrease This will insure you have the most accurate data possible Use the OK key to exit this screen and store the reading The text below the Current heading indicates...

Page 150: ...has been collected at all of the conditions the condition boxes will have X s showing that data has been collected After data has been collected press the F1 End Run key to review the prior measureme...

Page 151: ...nished reviewing press OK to continue to the solution process 8 3 9 Shut Down Engines A screen directing you to shut down the engine s will appear next You can use the F0 Back Up key to return to the...

Page 152: ...t is extremely important that these changes are entered as they will be used to update the influence co efficient for the next run Use the keypad to enter changes If weight is removed from a location...

Page 153: ...e tail rotor or the suggested weights are smaller than the minimum hole weight For instance in the example below the attaching nut and bolt weigh 3 9 grams This is larger than either of the suggested...

Page 154: ...eigh 3 9 grams To re solve the solution simply compensating for the minimum hole weight press OK to display the new solution If there are existing weights on the tail rotor continue below to obtain th...

Page 155: ...ow Run 1 Suggestion will be the minimum weight required in the minimum number of holes allowing for the attaching hardware These weights may not be in adjacent holes This is necessary to provide the w...

Page 156: ...d with the Balance Status screen shown below Press F1 Quit Job to mark the job as complete without the option for resuming the job at a later time Pressing F1 will return you to the Main Menu Choosing...

Page 157: ...gested as well as the installed corrections to the rotor To view a different run number press the or keys To view the chart information for the job press the F1 Chart key and refer to paragraph 8 4 2...

Page 158: ...Any additional charts will have similar screens to view Pressing F5 Continue will progress through all available screens for all conditions When returned to the View T R Balance screen paragraph 8 4...

Page 159: ...age Jobs The features in this section are common among all jobs Because of this they are contained in Chapter 3 Using the Gen II Analyzer 8 7 Manage Setups The features in this section are common amon...

Page 160: ...ns spaced equally around the chart all adjustments are of the same type and all adjustments carry the same ICF The next paragraph details the process for defining a tail rotor Regular chart setup Regu...

Page 161: ...the chart uses an adjustment type such as the number of washers per IPS simply enter this number and overlook the label of grams WtPos Add The lower portion of the screen provides fields for entry of...

Page 162: ...arget and Blank have an ICF of 10 grams per 1 0 IPS where A and B have an ICF of 33 grams per 1 0 IPS The clock angle move lines are not equally spaced around the chart therefore it must use the Irreg...

Page 163: ...s the key to move to the Add field Enter the clock angle move line for this point For the TARGET weight position the move line is 6 00 Perform this for each adjustment point shown on the chart to comp...

Page 164: ...on Descriptions of each of these options follow along with the information required to complete the menu screens within the options and the steps necessary to perform the balance function 9 1 Create S...

Page 165: ...o resume it Pressing the F1 Yes key will return you to the last logical in progress step of the job Pressing the F5 No key will proceed as described in the two examples below depending on your circums...

Page 166: ...he Transient Balance Setup banner screen shown below See paragraph 9 1 1 below for step by step instructions on completing the Transient Balance Setup 9 1 1 Transient Balance Setup 9 1 1 1 The Transie...

Page 167: ...e you choose will aid you in differentiating this setup from other stored setups should you choose to use or review it at a later time The name should be one of your choosing which will be easily reco...

Page 168: ...rather than a specific class weight by name 9 1 1 9 If you selected Class or Both in the Balance Wt Type field the Num Class Wt Sets field will be available Using the key move to the Num Class Wt Set...

Page 169: ...vibration measurements 9 1 1 14 Move to the Min Baln RPM minimum balancing speed field by using the key Enter the minimum speed in RPM that may be used for this balance setup The value entered here m...

Page 170: ...Phototach and Lasetach The available selections are Optical Mag P U Mod Tth and Adj Tth If AdjTth is selected the additional Delta field will appear after Tach Pos FLA See paragraph 9 1 2 5 below for...

Page 171: ...xt field 9 1 2 9 Use the key to select the Sensor Type you will use for this balance If the sensor you intend to use is not among those listed see Chapter 22 Analyzer Management to learn more about ad...

Page 172: ...choose between Accel Decel or Both 9 1 3 3 If Both is selected in the Acquire on field the Order field will be displayed Use the key to move to this field This field allows you to choose the order in...

Page 173: ...a known speed range where vibration data should not be considered for calculating a balance solution Selecting Yes will remove the Bins and Target fields for the affected speed band 9 1 3 8 Press the...

Page 174: ...he first and second weight You will have the option to accept the recommended setting or to ignore it 9 1 4 3 Use the key to move to the Num Wts number of weights field Use the numeric keypad to enter...

Page 175: ...adjacent Name field The unit of measure is that which you defined in paragraph 9 1 1 11 above Typically the first entry in this table will be a NULL or NO WT weight A Null weight is one that may be us...

Page 176: ...efined only one balance plane you will only complete one Balance Plane Information screen 9 1 5 2 Use the key to move to the Posn Type field This field will define the terminology used to refer to the...

Page 177: ...ail weights For example with this field set to Yes if there are 15 Usable holes and four are already filled with detail weights the analyzer will only place trim balance weights in 11 With this field...

Page 178: ...orward out of the intake 9 1 5 12 Use the key to move to the MaxWt Position maximum weight per position field Enter a numeric value to define the maximum total number of grams or ounces as defined in...

Page 179: ...nd its triggering device magnetic interrupter reflective tape etc With the fan in this position use the 12 00 position as the 0 or 360 degrees index point and measure opposite the direction of rotatio...

Page 180: ...osition the angle may be measured as 15 degrees On the screen use the keypad to enter the angle of position 1 as 15 Then using the key to move to the adjacent field No input the number 1 Next measure...

Page 181: ...influence coefficient 9 1 7 3 The All Sensors Use the Same ICF field is only available if multiple sensors were selected in paragraph 9 1 1 12 above Use the to toggle the YES NO answer field to indic...

Page 182: ...9 1 7 9 The Deg field identifies the phase correction in degrees If no known ICFs are available leave this field at the default value of 0 This field will be updated upon executing the Quit Job selec...

Page 183: ...field as necessary using the analyzer keypad If Engine Serial Numbers have previously been entered in this analyzer you may optionally press the F3 Eng S N key and select a serial number from the sto...

Page 184: ...the optical tach Before starting the engine make sure all previously installed trim balance weights have been removed On some engines there may be detail or factory installed weights which must not be...

Page 185: ...ke any minor adjustments as necessary and then press OK to continue Use the F3 Pol key to reverse the polarity of the Tach Signal If the Current RPM is erratic at a stable engine speed press this key...

Page 186: ...If a speed exclusion zone was configured in paragraph 9 1 3 7 the message Entering Speed Exclusion Zone SEZ will be displayed as well as a yellow box across the ribbon gauge with the letters SEZ see t...

Page 187: ...retake only the Acceleration data F2 RetakeDec Allows the user to retake only the Deceleration data F3 RetakeAll Allows the user to retake all data F4 Plot Displays a vibration plot as shown in parag...

Page 188: ...ultiple sensors and multiple speed bands in both an Acceleration and Deceleration run The function keys available are F0 Backup Returns to the Review Prior Run s Data screen shown in 9 2 5 4 F1 Retake...

Page 189: ...his may require the removal of that weight for verification Select F5 No if the weights were already removed or there were no existing weights installed 9 2 5 8 List Run 1 Existing Weights From this s...

Page 190: ...the existing weight and location information entered in the previous screen 9 2 5 10 If this is the first suggested weight screen the weights will be test weights unless an established influence was e...

Page 191: ...olumn with a heading of Suggest is the Class Weight suggested for that Position The right column with a heading of Install is the entry for the actual Class Weight installed in a particular Position T...

Page 192: ...to identify missing weights from the class weight set currently being used Use the or keys to move from weight to weight When you reach a weight that is not available use the and keys to place an X i...

Page 193: ...e this job without the option to resume at a later time The Quit Job selection will update the influence coefficient in the setup for use in follow on Jobs F6 Graph Displays a graph of the balance pla...

Page 194: ...setup 9 2 6 2 When the vibration levels have been reduced to a level equal to or lower than the target value set in paragraph 9 1 3 9 above the Balance Status screen will be displayed It informs you...

Page 195: ...job was satisfactory with few runs it may be acceptable to update the ICF Using the screenshot below as an example if the job went well and you chose to quit the job before reaching the target value i...

Page 196: ...ge Jobs The features in this section are common among all jobs Because of this they are contained in Chapter 3 Using the Gen II Analyzer 9 5 Manage Setups The features in this section are common among...

Page 197: ...s chapter was updated with corrections to minor typographical errors East 4 27 2016 2 01 Corrected instances where fan was globally replaced with Transient but they didn t apply Lucas 3 6 2019 2 02 Ad...

Page 198: ...ons of each of these options follow along with the information required to complete the menu screens within the options and the steps necessary to perform the balance function 10 1 Start Job Selecting...

Page 199: ...rtunity to resume it Pressing the F1 Yes key will return you to the last logical in progress step of the job Pressing the F5 No key will proceed as described in the two examples below depending on you...

Page 200: ...e Fan Turbine Balance Setup banner screen allows you to define and store a Fan Turbine Balance Setup in both fill in and selection fields The fill in fields have squared off ends These fields are fill...

Page 201: ...erclockwise 10 1 1 3 Using the key move to the Viewed From field This field is used to define the Engine Rotation perspective The two available perspectives are FLA Forward Looking Aft and ALF Aft Loo...

Page 202: ...ng screen 10 1 1 8 Use the key to move to the Label Detail Wts field Detail weights are those weights that are installed at the factory and cannot be removed If these weights occupy positions normally...

Page 203: ...may encounter a phenomenon known as runout Runout occurs as a result of the physical properties of some shafts The Slow Roll RPM is used to identify what the actual signal is and then these measured...

Page 204: ...he first sensor in the first column and the speed settings for the second sensor in the second column 10 1 2 3 Press the key to move the cursor to the Balance Relative to Defined Peak Speed field The...

Page 205: ...se the key to make your selection 10 1 2 5 When all fields are completed and set per your requirements press OK to continue 10 1 3 Define Class Weights Screen 10 1 3 1 The Define Class Wts banner scre...

Page 206: ...atch the suggested solution 10 1 3 6 Use the key to move to the Add Remove field The only selection in this field is Remove then Add You cannot edit this selection at this time 10 1 3 7 Use the key to...

Page 207: ...additional class weight set If you have specified only one class weight set for this setup press OK and go to paragraph 10 1 4 10 1 4 Balance Plane Information Setup Screen To complete the Balance Pl...

Page 208: ...to move to the Detail Reduce Usable This field will let you define whether the detail weight holes reduce the number of holes usable for trim balance In some cases the Num Usable holes paragraph 10 1...

Page 209: ...kwise or CCW for counterclockwise The direction is based on the order of ascending value or increasing numbers 10 1 4 11 Pressing the key will move the cursor to the from field to the right of the Pos...

Page 210: ...to use as a trial weight in the first balance run This trial weight will only be used if an Influence Coefficient ICF is not stored in the setup 10 1 4 16 If you selected Even position spacing in par...

Page 211: ...ter reflective tape etc With the fan in this position use the 12 00 position as the 0 or 360 degrees index point and measure opposite the direction of rotation to the angle of each position number and...

Page 212: ...Use the key to move from hole number to hole number When the cursor highlights a hole number that is currently occupied by a detail weight use the key to toggle between the hole number and an X The X...

Page 213: ...s from 1 to 12 If you are unsure of the location of the tach trigger event use the key to select UNK Press the key to move to the next field 10 1 6 5 Use the keypad to enter a value in the Delta field...

Page 214: ...of the sensor on the engine as viewed from forward of the engine looking into the intake Use the key to move to the next field 10 1 6 13 Use the keypad to enter a value in the Targ field The value wil...

Page 215: ...Use the key to move to the next field Enter an established or calculated influence for this setup from the keypad In the Balance weight units Vib units field enter the units of weight grams or ounces...

Page 216: ...essary using the analyzer keypad If Serial Numbers or Engine Types have previously been entered in this analyzer you may optionally press the F3 Eng S N or F4 Eng Typ key and select a serial number or...

Page 217: ...re may be detail or factory installed weights which must not be removed Check the applicable Maintenance Manual prior to removing weights if you are not familiar with this engine and the balancing pro...

Page 218: ...rratic at a stable engine speed press this key in an attempt to stabilize the reading This option may be necessary when either of the Tooth settings Mod Tth or Adj Tth are selected on some engines 10...

Page 219: ...s message is displayed when enough data has been collected to continue However the data collected at this point may not be the best to provide an optimum solution It is recommended to wait for the Com...

Page 220: ...for the Error indication to be stable as an indication of acceptable data rather than waiting for it to decrease further 10 1 12 Review Prior Run s Data 10 1 12 1 The Review Prior Run s Data screen s...

Page 221: ...key to acknowledge the message and shut down the engine s 10 1 14 Fan Turb Suggested Installed Wts 10 1 14 1 After displaying a brief Optimizing Solution status indicator the Fan Turbine Suggested In...

Page 222: ...only been placed in location number 1 The other 10 weight locations have not been used yet and are marked with the symbol The center column with a heading of Suggest is the Class Weight suggested for...

Page 223: ...ou to identify missing weights from the class weight set currently being used Use the or keys to move from weight to weight When you reach a weight that is not available use the and keys to place an X...

Page 224: ...llows you to select an optional balance plane and or weight set F5 Quit Job Allows you to terminate this job without the option to resume at a later time F6 Graph Displays a graph of the balance plane...

Page 225: ...rget amplitude entered in the setup 10 1 15 2 When the vibration levels have been reduced to a level equal to or lower than the target value set in paragraph 10 1 6 13 above the Balance Status screen...

Page 226: ...e the message below telling you why the ICF could not be updated 10 2 Resume Job The features in this section are common among all jobs Because of this they are contained in Chapter 3 Using the Gen II...

Page 227: ...dded text describing what a means for a weight location in paragraph 10 1 14 1 Lucas 1 14 2016 2 00 Major rewrite generalizing the manual to cover both the Viper II and Cobra II This chapter only appl...

Page 228: ...ram will shuffle the entire set and display a new placement location for each blade in the set to attain the best possible balance through weight distribution This negates the necessity for changing m...

Page 229: ...f a setup has previously been entered for the engine model you are currently working you may select it from the Select Setup List as illustrated in the screen sample below and proceed to paragraph 11...

Page 230: ...ch will allow up to 99 blades in a set This numbering style is how you will identify each blade in the set for weight and later for location placement 11 1 2 6 In the Units of Measure field use the ke...

Page 231: ...a maximum allowable weight difference between two opposing blades The analyzer will map the blades in the best configuration available but will not place blades opposite each other whose weight exceed...

Page 232: ...ce that there are three columns one for the Position Posn of the Blade one for the Blade identifier A Z or B1 B99 and one for the Weight There are a number of rows equal to the total number of blades...

Page 233: ...column If you selected Yes in paragraph 11 1 2 8 above the fourth column will be displayed listing the Blade Serial number At the bottom of the screen you will see the Total Error for the new placeme...

Page 234: ...t acceptable perform a Transient Balance in accordance with Chapter 9 or a Fan Turbine Balance in accordance with Chapter 10 11 2 Resume Job The features in this section are common among all jobs Beca...

Page 235: ...er reference link in footer and added Revision History table Berlin 11 25 2015 1 02 Updated to reflect Define Max Weight Difference Between Opposing Blades feature East 1 14 2016 2 00 Major rewrite ge...

Page 236: ...unction is available as part of the Viper II Main Menu and is used with or without the model 1752B JEDA dependent on the engine computer model If you are not sure what performance equipment and access...

Page 237: ...88 10 320 0275 10 320 0422 CABLE EMS DIRECT CONNECT N1 DEEC Generic JEDA N1 DEEC Comm F0 S Y S T E MS VIPER II Analyzer Boot Version App Versi on 0 _ A A A A A A 1 B 2 Au x C o m m 3 C 4 D STR B JED A...

Page 238: ...35 3 0 Pressure Hoses Optional 3 0 Press Transducer Optional 2 35 Press Transducer 2 35 Press Cable 3 0 Press Cable AMB Press Cable AMB Temp Cable AMB Temp Probe For N2 DEEC and 8002 60 62 N1 DEEC equ...

Page 239: ...1 DEEC Comm cable is a generic design that connects directly to the J2 connection of the N1 computer and either to the JEDA or to the EMS Direct Connect cable Engine airframe specific cables are neces...

Page 240: ...are also optional but recommended for data quality NOTE To reduce the occurrence of communication errors it is recommended to connect all necessary cables and sensors BEFORE powering on the equipment...

Page 241: ...ions the information screen shown below will be displayed to indicate what connections were detected Note that if you are using N1 DEEC Direct Connect no JEDA related connections will be detected or d...

Page 242: ...layed If conducting the run on EEC N2 DEEC or 60 62 N1 DEEC computers use the key to scroll through the list of available engine models The list is restricted to those engine models that may be instal...

Page 243: ...lect screen will be displayed If conducting the run on EEC N2 DEEC or 60 62 N1 DEEC computers use the key to scroll through the list of available Nozzles that may be installed on the engine model and...

Page 244: ...or degrees F Press the key to move to the next field N1 Delta RPM Use the analyzer keypad to enter the N1 Delta RPM This is the allowable N1 speed drift from a stable speed before the data logger or V...

Page 245: ...rrect entry then press OK to accept your selections and entries and continue 12 1 2 10 If the engine you are running is EEC or N2 DEEC equipped the information message below will be displayed Press F1...

Page 246: ...to return the N1 DEEC computer to the default mode you must cycle the N1 DEEC power switch any time power to the analyzer is lost during a calibration run Press the F5 key to acknowledge and continue...

Page 247: ...zer will afford you the opportunely to continue the run without returning to the beginning of the run Press F5 to acknowledge and continue 12 1 2 15 The STABILIZATION screen shown below will be displa...

Page 248: ...the P Set indication The normal time required for acquiring each point is one minute If data quality dictates the scan period may be extended until the required number of acceptable data samples is a...

Page 249: ...e The screen will then return to the acquisition screen shown above in paragraph 12 1 2 15 with the P Set indicating the next sequential point number The process then repeats for each of the five poin...

Page 250: ...nd are terminating the job This screen directs actions that are required in order to return normal control to the N1 DEEC computer As in the example below the PLA must be reduced to a point equal to o...

Page 251: ...n information screen similar to the one shown below will be displayed each time the Viper II Analyzer is adjusting power for the next point You should not attempt to press any keys during this process...

Page 252: ...screen below you must then define the parameters of the additional points and manually make power adjustments for the additional points even when the engine computer is an N1 DEEC 12 1 3 7 The informa...

Page 253: ...ow These choices allow you to manage previously completed job data you have stored in the analyzer 12 2 1 Review Selecting the Review option presents a list of stored jobs on the Job List banner scree...

Page 254: ...r permanent record prior to deleting Once deleted the jobs cannot be retrieved from the analyzer 12 2 5 Export Job The Export Job option presents a list of stored jobs on the Export Job to USB banner...

Page 255: ...mance screen menu will retun the screen shown below In that screen you will see the word Connections near the top of the screen Listed below Connections is a list defined by the name in the left colum...

Page 256: ...to abort the test default or ignore the PLA movement All settings are toggled by using the RIGHT ARROW or LEFT ARROW keys Press F1 to save the changes or F5 to reset the setting to default values 12 8...

Page 257: ...mode The data is collected by polling each parameter from the N1 DEEC It may take several seconds to scan through all of the available N1 DEEC parameters 12 10 Monitor N1 DEEC Fast Scan The Monitor N...

Page 258: ...11 Monitor Aux OAT The Monitor Aux OAT option allows the display of data measured from the OAT sensor attached to the Aux Com port on the Viper II analyzer While in Monitor mode the OAT data and meas...

Page 259: ...per II and the generalization has minimal impact A note was added prior to para 12 1 2 with the sequence for connecting the cables and powering on the equipment This chapter was also updated with corr...

Page 260: ...nu is an option within the Transient Vibration Survey function Descriptions of each of these options follow along with the information required to complete the menu screens within the options and the...

Page 261: ...rom scratch or whether an incomplete job still exists in the analyzer s memory Incomplete Job If another job was in progress but was not completed the Incomplete Job banner screen will be displayed to...

Page 262: ...e actual setup names will be those which you have entered into your analyzer Transient Survey Setup Screen If you are starting a new job with no setups previously defined in the analyzer s memory the...

Page 263: ...time The name should be one of your choosing which will be easily recognized and associated with this setup such as Citation 10 Lear 45 or CF34 3A 13 1 1 1 2 Using the key move to the frequency unit f...

Page 264: ...if you are trying to separate one single peak into two very close peaks The value displayed will be the frequency interval between each pair of lines on the final spectral display 13 1 1 1 7 Use the...

Page 265: ...provide additional selection fields in the Mod Max and Sensor columns 13 1 1 1 11 Use the key to move to the Mod field The Mod field determines the modifier that will be applied to the engineering uni...

Page 266: ...elect the sensor you will use for this channel If the sensor you are using is not in the selection list you must enter the sensor setup See Chapter 22 for entering a sensor setup Any selection other t...

Page 267: ...Manual 13 8 Transient Vibration Survey Chapter 13 Revision 4 10 Apr 20 13 1 1 3 Conditions The Conds conditions key which corresponds to the F1 key will display the Conditions screen as shown in the e...

Page 268: ...mory management tool It also allows the analyzer a specific time block to collect data at the specified condition Following data acquisition for the specified amount of time data collection will termi...

Page 269: ...in this field The description should be one that all users of this setup are familiar with and easily understand 13 1 1 4 3 The 100 Spd column is used to enter the rpm at 100 of component speed Use t...

Page 270: ...olumn using the keypad 13 1 1 4 7 The Plot Div determines the intervals or divisions of speed indication on the plots across the full speed range For instance if you intend to view the plot in a range...

Page 271: ...andwidth 13 1 1 5 3 Use the keypad to enter the lowest frequency of interest F lower If Speed is set to a xCS1 through xCS4 selection this value is multiplied by that component speed and defines the l...

Page 272: ...only channel selected to collect broadband measurements The name BBnd A will already be assigned and not selectable The Max value is a toggle field Use the key to select a maximum value above the valu...

Page 273: ...fields default to No on initial opening of the screen If you wish to plot a transient survey toggle the answer field to Yes under the column of choice In the example above the OVERALL vs Time and Broa...

Page 274: ...of the Transient Survey Setup screen after selection F5 Limits from the main Transient Survey Setup screen Press the F1 key if you wish to define Parameter Limits for the transient survey plots Use t...

Page 275: ...after selection of F5 Limits from the main Transient Survey Setup screen Press the F2 key if you wish to define Spectra Limits for the transient survey plots To define spectra limits do the following...

Page 276: ...ve to a specific RPM range or xHz used to enter a limit relative to a specific Hz range 13 1 1 10 6 Move to the Limit column and enter the amplitude limit for the bandwidth specified in F low and F hi...

Page 277: ...but we highly recommend you fill in as much information as possible for ease of use in trending recall and storage Navigate move between the fields using the and keys All fields are entered from the k...

Page 278: ...nter of the screen the information message Tach power is on will be displayed This indicates that power to the optical tachometer is currently available to check alignment with the reflective target I...

Page 279: ...te screen will be displayed as shown in the example below You MUST calibrate the microphone before every use Differences in temperature and pressure will affect the microphone readings if it is not pr...

Page 280: ...Turn the calibrator on and press OK on the analyzer 13 1 5 2 2 After calibration the analyzer will display the Acoustic Sensor Calibration screen 13 1 5 3 Acoustic Sensor Calibration 13 1 5 3 1 The A...

Page 281: ...gine Start the engine or component you are checking e g generator gearbox etc When the component reaches normal operating conditions e g speed temp etc press the OK key to begin acquiring data NOTE Th...

Page 282: ...the analyzer will begin data acquisition as soon as the screen is displayed and the F5 menu will display Event For a description of the fields and function keys see paragraphs 13 1 8 1 and 13 1 8 2 be...

Page 283: ...ch channel configured 13 1 8 1 5 MxChan x Displays the maximum values reached for each channel configured If the w Record option was selected in paragraph 13 1 1 1 7 these values will read 0 00 until...

Page 284: ...lated with the survey 13 1 9 Collecting Data with Spectra or Spectra w Record If the display type was selected as Spectra or Spectra w Record in paragraph 13 1 1 1 7 above the spectrum s are displayed...

Page 285: ...isplayed at the lower left corner of the spectrum and represents the minimum frequency of the X scale as entered in paragraph 13 1 1 1 3 13 1 9 1 5 Frequency unit Centered at the bottom of the spectru...

Page 286: ...ng the X horizontal axis of the spectra by pressing the or keys Hold down the key for large and rapid incremental changes The value of the X axis frequency and Y axis amplitude will be displayed for t...

Page 287: ...ys will return to Options Overall and Event respectively If no cursor is displayed when pressing this key only the box nomenclature will change Pressing the F2 X scale or F3 Y scale keys will change t...

Page 288: ...yed and the X Y and Ovr Overall values will be shown in the upper right corner of the screen The three boxes above the F1 F4 and F5 keys will return to Options Overall and Event Record respectively If...

Page 289: ...played If multiple conditions were configured in paragraph 13 1 1 3 the Select Aircraft Condition banner screen is again displayed as shown in the following figure Notice that the condition for which...

Page 290: ...F1 Pause Job key This will cause the following screen to be displayed If you are finished collecting data shut down the engine s per the manual instructions and use the F5 Continue key to mark the job...

Page 291: ...Because of this they are contained in Chapter 3 Using the Gen II Analyzer 13 4 Exporting Time Trace Information For Transient Vibration Surveys export the PWC Time Trace information of the job s as ne...

Page 292: ...lue when capturing multiple jobs on the same engine To set the starting run number for the second run add the number of conditions to the second job For example if the number of conditions is 4 then w...

Page 293: ...to tailor the report to display only what is relevant The feature is only for transient vibration surveys To generate a custom report select Manage Jobs under the Transient Vibration Survey Jobs Sele...

Page 294: ...key to include all elements of collected data in the report To clear all elements of the report press F4 Clear When the desired information has been selected press OK When complete press F5 Continue T...

Page 295: ...ision history table Added Broadband feature instructions Berlin Lucas 1 18 2016 2 00 Major rewrite generalizing the manual to cover both the Viper II and Cobra II This chapter only applies to the Vipe...

Page 296: ...ns and the steps necessary to perform the vibration spectrum surveys function Viper II Cobra II The Vibration Spectrum Survey option allows the user to rapidly complete and store vibration surveys usi...

Page 297: ...pportunity to resume it Pressing the F1 Yes key will return you to the last logical in progress step of the job Pressing the F5 No key will proceed as described in the two examples below depending on...

Page 298: ...ows you to define and store a vibration spectrum survey setup As shown in the figures below some fields in this screen have default values that appear automatically You can use this information if app...

Page 299: ...key to move to the minimum frequency field immediately to the right of the frequency unit field Use the analyzer keypad to enter the minimum frequency of interest for this survey relative to the frequ...

Page 300: ...cquired The displayed amplitude will not decrease thus the term peak hold A peak hold survey will continue to collect data until you stop acquisition by pressing the OK key Expon will show the changes...

Page 301: ...the equipment application set this field as low as possible while still allowing sufficient space to display the maximum limitations as stated above 14 1 1 1 12 Repeat paragraphs 14 1 1 1 9 through 14...

Page 302: ...press OK to accept and return to the Spectra Setup screen 14 1 1 3 Speeds Viper II only Press the F2 Speeds key from the Vibration Spectrum Setup screen shown above in paragraph 14 1 1 The Speeds opt...

Page 303: ...component speed Use the keypad to enter the value in the 100 Spd field The example above shows 4800 and 10000 for N1 and N2 respectively This will allow the analyzer to also display the component spe...

Page 304: ...uencies above that value 14 1 1 3 7 Repeat paragraphs 14 1 1 3 1 through 14 1 1 3 46 for each of the channels required When all fields are completed per your requirements press the OK key to return to...

Page 305: ...n a fixed range The Viper II provides the additional selections of xCS1 through xCS4 If Unit is set to one of these this value is multiplied by that component speed configured in paragraph 14 1 1 3 ab...

Page 306: ...4 1 2 Job Identification The next screen displayed is the Job Identification banner screen shown in the following illustration All information on this screen is optional however we highly recommend yo...

Page 307: ...l but we highly recommend you fill in as much information as possible for ease of use in trending recall and storage Navigate move between the fields using the and keys All fields are entered from the...

Page 308: ...s Speeds screen in paragraph 14 1 1 3 above was configured for use of an optical tachometer the information message Tach power is On will be displayed near the center of the screen This indicates that...

Page 309: ...a microphone the Select channel to calibrate screen will be displayed as shown in the example below You MUST calibrate the microphone before every use Differences in temperature and pressure will affe...

Page 310: ...tion the analyzer will display the Acoustic Sensor Calibration screen 14 1 5 3 Acoustic Sensor Calibration 14 1 5 3 1 The Acoustic Sensor Calibration screen provides details of the calibration You wil...

Page 311: ...are checking generator gearbox etc When the component reaches normal operating conditions speed temp etc press the OK key to begin acquiring data NOTE The F4 menu item Calib and the message Press F4 t...

Page 312: ...Preparing to acquire data message the spectra will be displayed If multiple sensors were configured the display will be divided as shown below in half for two sensors top and bottom in both the Cobra...

Page 313: ...1 3 14 1 8 1 5 Frequency unit Centered at the bottom of the spectrum and is the frequency unit selected in paragraph 14 1 1 1 2 14 1 8 1 6 Maximum frequency Displayed at the lower right corner of the...

Page 314: ...the number of lines of resolution specified in the setup screen Pressing the F2 Harmonic key will produce multiple harmonic cursors yellow boxes in screenshot below according to the specified frequen...

Page 315: ...further retrace the steps from that point as described in the text Pressing the F2 Default key will return the X or Y scale to the values specified in the setup This is a quick and easy way to return...

Page 316: ...ing the user to resume data collection Pressing Resume will resume data collection 14 1 8 2 3 Pressing F4 Overall will cause the screen to change from the spectra plot to the overall display as descri...

Page 317: ...2 will display the readings of all channels when Channel B reached its maximum value as shown below The default selection is channel A and the heading over the third column is reads MxChanA This will...

Page 318: ...s have been collected the Shut Down Engines screen shown on page 24 will be displayed If additional conditions require data collection the Select Condition banner screen is again displayed as shown in...

Page 319: ...Job If you would like to exit the job without the ability to resume it later you can press the F5 Quit Job key Either of these actions will cause the Shut Down Engines screen to be displayed as seen...

Page 320: ...Manage Jobs The features in this section are common among all jobs Because of this they are contained in Chapter 3 Using the Gen II Analyzer 14 4 Manage Setups The features in this section are common...

Page 321: ...the Viper II and Cobra II This chapter was updated with screenshots and corrections to minor typographical errors East 8 15 2017 4 00 Updated with new behavior where the Select Condition screen is al...

Page 322: ...teps necessary to perform the overall vibration surveys function Viper II Cobra II The Overall Vibration Survey option allows the user to rapidly complete and store overall vibration surveys using the...

Page 323: ...portunity to resume it Pressing the F1 Yes key will return you to the last logical in progress step of the job Pressing the F5 No key will proceed as described in the two examples below depending on y...

Page 324: ...to define and store an overall vibration survey job As shown in the figure below some fields in this screen have default values that appear automatically You can use this information if appropriate o...

Page 325: ...inimum frequency field immediately to the right of the frequency units field Use the analyzer keypad to enter the minimum frequency of interest for this survey relative to the frequency units selected...

Page 326: ...ge Consult the appropriate equipment maintenance manual for specific requirements of an overall vibration survey or for analysis guidelines 15 1 1 1 7 Use the key to move to the MaxValue field Toggle...

Page 327: ...oggle between selections Make field entries in the fields using the keypad 15 1 1 2 2 In the Condition column use the analyzer keypad to enter a descriptive name for up to 15 conditions You may define...

Page 328: ...sed Pulse is used when there is a pulse input such as a Phototach Lasetach or magnetic pickup This pulse input may be but is not necessarily a once per rev pulse The preference is actually a multi pul...

Page 329: ...divided into the known engine speed at that point For this purpose it is recommended to use the analyzer s Monitor Overall function see Chapter 19 as it is quick and easy to configure 15 1 1 3 5 Use t...

Page 330: ...but we highly recommend you fill in as much information as possible for ease of use in trending recall and storage Navigate move between the fields using the and keys All fields are entered from the k...

Page 331: ...figured for use of an optical tachometer the information message Tach power is On will be displayed near the center of the screen This indicates that power to the optical tachometer is currently avail...

Page 332: ...icrophone the Select channel to calibrate screen will be displayed as shown in the example below You MUST calibrate the microphone before every use Differences in temperature and pressure will affect...

Page 333: ...bels dB and the Reference Frequency in Hertz Hz as found on the calibrator Plug the microphone into the correct size adapter in the top of the calibrator Turn the calibrator on and press OK on the ana...

Page 334: ...ress F5 Start Engine to continue If calibration has not been completed a warning message will appear giving you the option to calibrate the microphone or continue with the job 15 1 6 Start Engine Star...

Page 335: ...4 sensors with tach in Viper II only 1 2 sensors in Viper II and Cobra II 15 1 8 1 Fields displayed when viewing Overall 15 1 8 1 1 Samples Number of data samples collected by the analyzer An increasi...

Page 336: ...channels when Channel B reached its maximum value as shown below The default selection is channel A and the heading over the third column is reads MxChanA This will change to display the selected chan...

Page 337: ...hannel entered in paragraph 15 1 1 1 9 15 1 8 3 3 Ovr Displays the overall reading for the affected channel 15 1 8 3 4 Minimum frequency Displayed at the lower left corner of the spectrum and represen...

Page 338: ...sing the or keys Hold down the key for large and rapid incremental changes The value of the X axis frequency and Y axis amplitude will be displayed for the current position of the cursor Incremental v...

Page 339: ...Pressing the F1 Expand key will expand the X or Y scale of the spectra in effect enlarging the viewing area You might think of this function as a Zoom Out feature The center of the Expanded view will...

Page 340: ...F4 View key will display another sub menu The Function keys will be identified by the descriptions assigned in paragraph 15 1 1 1 9 above with the F5 key being labeled All Pressing the F key below the...

Page 341: ...conditions require data collection the Select Condition banner screen is again displayed as shown in the following figure Notice that the condition for which you just collected and stored data now ha...

Page 342: ...s F1 Pause Job If you would like to exit the job without the ability to resume it later you can press the F5 Quit Job key Either of these actions will cause the following screen to be displayed If you...

Page 343: ...l jobs Because of this they are contained in Chapter 3 Using the Gen II Analyzer 15 4 Exporting Time Trace Reports For Vibration Surveys export the PWC Time Trace information of the job s as necessary...

Page 344: ...when capturing multiple jobs on the same engine To set the starting run number for the second run add the number of conditions to the second job For example if the number of conditions is 4 then when...

Page 345: ...1 Repaired broken reference links and added revision history table Berlin 1 20 2016 2 00 Major rewrite generalizing the manual to cover both the Viper II and Cobra II This chapter was updated with scr...

Page 346: ...nitor Spectrum The Monitor Spectrum function allows the user to rapidly set up the analyzer to acquire vibration data for troubleshooting verification of repair comparison of similar components or sna...

Page 347: ...you want multiples of the fundamental frequency included in the frequency range determine to what extent that need is 1X 2X 3X and so on then extend the frequency range to include it For example 300H...

Page 348: ...Consult the appropriate equipment maintenance manual for specific requirements of a vibration survey or for analysis guidelines 16 1 1 8 Use the key to move to the Blocks in Avg field Enter the numbe...

Page 349: ...minimum If you do not expect amplitudes in excess of what would normally be experienced for the equipment application set this field as low as possible while still allowing sufficient space to displa...

Page 350: ...eypad 16 1 1 19 The 100 Spd column is used to enter the rpm at 100 of component speed Use the keypad to enter the value in the 100 Spd field The example above shows 4800 and 10000 for N1 and N2 respec...

Page 351: ...n the upper left above the Y scale This will display the modifier for the affected channel entered in paragraph 16 1 1 10 above 16 1 3 1 2 Channel description Desc Centered at the top of the spectrum...

Page 352: ...d incremental changes The value of the X axis frequency and Y axis amplitude will be displayed for the current position of the cursor Incremental values are determined by the number of lines of resolu...

Page 353: ...eys will change the F1 F2 F3 and F5 boxes to read Expand Default Shrink and Cancel respectively as shown in the following figure Pressing the F1 Expand key will expand the X or Y scale of the spectra...

Page 354: ...escribed in the text 16 1 3 2 2 Pressing the F4 View key will display another sub menu The F1 F2 F3 F4 keys will be identified by the descriptions assigned in paragraph 16 1 1 14 The F5 key will be la...

Page 355: ...n key menu options to the channel select sub menu This allows the user to view all values in relation to the maximum values for the selected channel For example pressing F2 will display the readings o...

Page 356: ...0 Major rewrite generalizing the manual to cover both the Viper II and Cobra II This chapter was updated with screenshots and corrections to minor typographical errors East 4 1 2020 2 1 Update for UI...

Page 357: ...des for rapid acquisition of a clock angle and amplitude reading without defining and saving a setup This function allows for no storage of readings for future review It is not recommended that you us...

Page 358: ...elections in this field The available selections are IPS Inches Per Second mm sec millimeters per second cm sec centimeters per second mils 1 1000th of an inch microns 1 1000000th of a meter m s s met...

Page 359: ...000 This scale refers to the number of engineering units of vibration amplitude specified in the previous field The full scale indicates the maximum vibration amplitude you expect to acquire or the ma...

Page 360: ...nce links in footer and added Revision History table Berlin 1 21 2016 2 00 Major rewrite generalizing the manual to cover both the Viper II and Cobra II This chapter was updated with screenshots and c...

Page 361: ...necessary to perform the function 18 1 Monitor Magnitude and Phase The Monitor Magnitude and Phase function provides for rapid acquisition of a phase angle and amplitude reading without defining and s...

Page 362: ...selections are IPS Inches Per Second mm sec millimeters per second cm sec centimeters per second mils 1 1000th of an inch microns 1 1000000th of a meter m s s meters per second squared cm s s centimet...

Page 363: ...um amplitude of interest Choose the amplitude that will adequately display the full amplitude of any specified limits as a minimum If you do not expect amplitudes in excess of what would normally be e...

Page 364: ...r the overall vibration condition of a system or component in a digital numeric display and can be toggled to produce a spectral view This function also provides the means to monitor under one set of...

Page 365: ...0 Hz in the center of the range The minimum might then be 250 Hz and the maximum 350 Hz for instance You might also consider other factors such as Harmonics If you want multiples of the fundamental fr...

Page 366: ...er of engineering units of vibration amplitude specified in the Units field The full scale indicates the maximum vibration amplitude you expect to acquire or the maximum amplitude of interest Choose t...

Page 367: ...a Phototach Lasetach or magnetic pickup may be used with the Viper II Analyzer This pulse input may be but is not necessarily a once per rev pulse The preference is actually a multi pulse per revoluti...

Page 368: ...set the FACTOR to 1 and read the value for the applicable tach channel at a known stable engine speed The indicated tach pulse frequency can then be divided into the known engine speed at that point...

Page 369: ...raphs 19 1 1 11 for each vibration sensor and 19 1 2 3 for each Viper II tach channel 19 1 3 1 3 Current Displays the current values for each channel configured 19 1 3 1 4 MxChan x Displays the maximu...

Page 370: ...resetting any values 19 1 3 2 3 F4 Spectra When pressed the display will change to show the spectra plot as shown in paragraph 19 1 4 below 19 1 3 2 4 F5 Restart will reset all of the recorded values...

Page 371: ...d at the lower left corner of the spectrum and represents the minimum frequency of the X scale as entered in paragraph 19 1 1 4 19 1 4 1 5 Frequency unit Centered at the bottom of the spectrum and is...

Page 372: ...he X horizontal axis of the spectra by pressing the or keys Hold down the key for large and rapid incremental changes The value of the X axis frequency and Y axis amplitude will be displayed for the c...

Page 373: ...ll return to Options Resume Overall and Restart respectively If no cursor is displayed when pressing this key only the box nomenclature will change Pressing the F2 X scale or F3 Y scale keys will chan...

Page 374: ...cur However the cursor will be displayed and the X Y and Ovr Overall values will be shown in the upper right corner of the screen The F1 F2 F4 and F5 boxes will return to Options Resume Overall and Re...

Page 375: ...links in the footer and added revision table Berlin 1 22 2016 2 00 Major rewrite generalizing the manual to cover both the Viper II and Cobra II This chapter was updated with screenshots and correcti...

Page 376: ...od of checking blade track independent of the Main Rotor Track and Balance menu item Data from this function is not stored in the analyzer The Check Track function can be performed using either an ind...

Page 377: ...o the following NOTE The Track Device selection will determine the fields necessary for that device Not all fields are required for every device and therefore some fields may be omitted from the displ...

Page 378: ...he measurement units you would like to use for the Main Rotor Diameter ONLY Track elevation lead lag units and adjustment units are all set in separate locations Refer to the Model 550 TraXTM operatio...

Page 379: ...guration above the TraXTM will automatically begin taking data As long as the Tach and Ready lights continue to flash the unit is actively collecting data When the Tach and Ready lights extinguish the...

Page 380: ...blade with the active blade presented in color with a broken border see blade B1 above Inactive blades will be grey and have a solid border The and keys will change the elevation of the active blade i...

Page 381: ...ed from the analyzer s Main Menu banner screen This function allows you to power optical tachometers to align reflective tape or simply check their function Viper II Cobra II 21 1 Test Tach Power Sele...

Page 382: ...l change the bottom line of the screen to display Tach Power TACH X where X indicates the selected channel thereby providing power to the selected channel The block just above the selected channel wil...

Page 383: ...us Items 13 3 Revision History 1 22 2016 2 00 Major rewrite generalizing the manual to cover both the Viper II and Cobra II This chapter was updated with screenshots and corrections to minor typograph...

Page 384: ...ems three of which are used for identification of the analyzer The other items are user accessible and editable items All are described in the following sections NOTE Some options appearing in the fol...

Page 385: ...on list during a balance analysis procedure saving time during the procedure by eliminating the need to re input sensor data The Manage Sensors option also allows you to add edit and delete sensors fr...

Page 386: ...d list you do not need to proceed further If your sensor name does not appear then you must select F1 New or F4 Copy to add a new sensor name and specifications To preprogram a sensor in the analyzer...

Page 387: ...will be listed on the specification sheet under something referring to Bias Voltage or similar If you do not know the IEP requirements of the sensor call ACES Systems and ask for Product Support The i...

Page 388: ...nd on the Sensor s Specification Sheet from the manufacturer Valid entries are from 0 001 to 3000 0 mV The Reverse Polarity is a toggle selection field The two selections are Yes and No This is a spec...

Page 389: ...e instructions for creating reports can be found in Chapter 3 Using the Gen II Analyzer 22 1 3 Delete Sensor Select Delete from the Manage Sensors banner screen menu Next select a sensor to delete fro...

Page 390: ...Use the to move to the Date Format field You may specify the date format you wish to use by using the key to toggle the selection to the format you wish to use Available formats are MM DD YYYY DD MM Y...

Page 391: ...to the location you wish to use Using the to move to the Sub Region field You may specify the sub region you wish to use by using the key to toggle the selection to the location you wish to use When y...

Page 392: ...able language options Once the choice is highlighted press the OK key to save and continue in that new language 22 2 3 Set Power Off Timeout The Power off timeout will turn the analyzer off after the...

Page 393: ...h minutes line to appear Select a number of minutes between 5 and 60 This is the length of time of no activity after which the analyzer will automatically shut off Press OK to exit this screen and ret...

Page 394: ...eld with Yes selected will cause the Timeout length minutes line to appear Select a number of minutes between 1 and 60 this is the length of time of no activity after which the analyzer will reduce th...

Page 395: ...paragraph 22 3 2 below Current information can be found at www AcesSystems com Press OK to exit the screen and return to the Analyzer Information menu 22 3 2 Analyzer Version Information The Analyzer...

Page 396: ...Use the keypad or the optional USB keyboard to enter information into these fields Entries here will appear on all reports created by the analyzer This screen will also show the Serial Number of the...

Page 397: ...eport screen pictured below When complete you will return to the Analyzer Owner Information screen The report will be added to the Pending Reports stored in the analyzer for transfer to the USB memory...

Page 398: ...th condition of the battery There are five possible conditions Excellent Good Fair Poor and Very Poor Charge Cycles Number of charging cycles the battery has undergone over the life of the battery Cur...

Page 399: ...ns These are the terms and conditions you agree to for using the analyzer Highlight the menu item and press OK to display the agreement You may view the entire document on the analyzer by using the F5...

Page 400: ...I Analyzers You may view the entire document on the analyzer by using the F5 Next key or you can save the document to a USB memory device by pressing the F2 Save key The document will be saved in the...

Page 401: ...rive menu item to add additional licenses to the analzyer You can either manually enter the license number into the License Key field shown below and press OK or Press the F1 Load Lic Load License key...

Page 402: ...active on the analyzer If you wish to add features to the analyzer please contact ACES Systems Global Solutions Specialists 22 6 Database Management The Database Management function allows you to mana...

Page 403: ...llow the steps below Select Import Setups from USB Drive and press OK If you haven t already inserted a USB memory device into the analyzer the analyzer will prompt you to insert one The USB memory de...

Page 404: ...lost or deleted jobs from a previous database backup This will be useful in the event you want to review a job that has been erased from the analyzer and wish to view it or generate a report Select R...

Page 405: ...e 22 6 3 Copy Database to USB Drive Copy Database to USB Drive allows you to create a complete copy of all jobs setups and sensors stored in the analyzer Product Support may ask you to perform this ta...

Page 406: ...If there is a USB memory device in the analyzer the process will begin automatically If there is no USB memory device insert a USB memory device and follow the onscreen instructions to start the proce...

Page 407: ...on 22 6 4 Erase All Jobs A quick easy way to perform housekeeping and clean out memory in the analyzer is to Erase All Jobs from the analyzer This function will delete all of the jobs stored in the an...

Page 408: ...t previously exported any information you want to save the data will be lost Press F1 Yes to erase the data or F5 No to return to the previous screen 22 6 5 Database Information In some cases you may...

Page 409: ...the necessary information press the F5 Continue key to return to the Database Management menu 22 6 6 Create Setup Report It is possible to generate a report which lists all of the setups stored in th...

Page 410: ...2020 After you start the process the analyzer will display a status message similar to the one below while it generates the report When the report is finished the analyzer will display the message be...

Page 411: ...emory device from any menu which contains the F1 Xfer Rpt key See Chapter 3 Using the Gen II Analyzer or use the Transfer Reports menu item on the Analyzer Management menu described in paragraph 22 8...

Page 412: ...create a report that lists all job types stored in the analyzer by selecting the Create All Job Report menu item You may want to save a listing of all jobs and their status or Product Support may ask...

Page 413: ...2020 After you start the process the analyzer will display a status message similar to the one below while it generates the report When the report is finished the analyzer will display the message be...

Page 414: ...emory device from any menu which contains the F1 Xfer Rpt key See Chapter 3 Using the Gen II Analyzer or use the Transfer Reports menu item on the Analyzer Management menu described in paragraph 22 8...

Page 415: ...rom the analyzer This device is formatted with a FAT32 file system to insure proper operation with the analyzer s file system If you need to use additional USB devices with the analyzer or need to ref...

Page 416: ...is process After you start the process the analyzer will display a status message Formatting USB with a status bar Once completed the USB memory device will have the aces_setups and aces_import folder...

Page 417: ...ce by using this menu item Simply insert a USB memory device into an open USB Port on the face of the analyzer and press OK to begin the process The Status Pane will show any pending reports which wil...

Page 418: ...the footer and added revision history table Berlin 1 20 2016 2 00 Major rewrite generalizing the manual to cover both the Viper II and Cobra II This chapter was updated with screenshots and correction...

Page 419: ...mits and possible damage that may be incurred CAUTION The charger is built for indoor use only Do not expose the charger to the elements CAUTION Power requirements must be determined on an individual...

Page 420: ...t of direct sunlight Adjust the screen brightness to a lower level The analyzer is continually monitoring and displaying the battery capacity If the level is low the battery charge indicator turns red...

Page 421: ...ed pins may cause problems with normal operation Check all connectors for evidence of damage Route cables away from all hot areas and electrical equipment If the cable is used while it is lying on the...

Page 422: ...be increased to insure a good trigger If the indicated speed in the analyzer function becomes erratic or unstable at higher speeds increase the length or width as the case may be of tape so that the t...

Page 423: ...m the RPM column since this is the first speed greater than your intended balance speed of 2300 From this number follow the row across to 26 5 which is the first number higher than your intended tape...

Page 424: ...our sensor with the analyzer when returning it in for calibration The sensor will also be checked as part of the calibration procedure 23 8 Overload of Input Channels The analyzer features an OVERLOAD...

Page 425: ...peed source such as a mag pickup or coil etc Single ended input configuration should typically be used for most vibration sensor inputs Single ended is required to provide a good ground reference retu...

Page 426: ...lays of the various types of data that can be acquired using the Gen II Analyzers 24 1 Reading the X and Y Plotted Vibration Spectrum A graphic spectrum display allows the user to investigate all aspe...

Page 427: ...ation above appears in several analyzer functions such as Propeller Balance Rotor Track and Balance Fan Trim Balance and IPS and Clock functions The scale is graduated along the right vertical side of...

Page 428: ...quality of the collected data to this point When amplitudes are high this error will average down to or near 0 00 very quickly As the amplitude is decreased due to the balancing process the value wil...

Page 429: ...ity of the measurement may be reduced Complete Press OK highlighted green This message will appear when a minimum number of consistent samples have been collected Allow the unit to collect data as lon...

Page 430: ...The Polar chart is a circular graph on which data points are displayed using the angle and the distance from the center point The X axis is located on the boundaries of the circle and represents the p...

Page 431: ...20 increments 24 3 2 Clock Angle Polar Chart The clock angle Polar Chart as shown in the illustration below appears in most rotary wing based analyzer functions such as Main Rotor Track Balance Tail...

Page 432: ...values under the Average heading The circle will respond in real time as these values update A blue circle will be displayed when the Vib magnitude is below 1 00 When the Vib magnitude exceeds 1 00 t...

Page 433: ...scribed in paragraph 24 2 3 above 24 3 6 Status Messages The top line of this screen can display four different status messages These messages are described in paragraph 24 2 4 above 24 3 7 RPM Warnin...

Page 434: ...ion of the Polar key and the type of chart will depend on the analyzer function being used 7 The vibration will be indicated by a circle displayed at a location on the polar that corresponds with the...

Page 435: ...with each job function The only standard function key when reviewing data in a polar chart is the Review key Its location will vary but will always return you to the default Review screen Other keys a...

Page 436: ...annels are configured the Vib Channel message will appear on the screen Pressing the or keys will cycle through the available channels Polar Chart displaying Vertical vibe channel Polar Chart displayi...

Page 437: ...15 1 01 Updated broken chapter reference link in the footer and added revision history table Berlin 2 12 2016 2 00 Major rewrite generalizing the manual to cover both the Viper II and Cobra II This ch...

Page 438: ...98 dB 98 dB Environmental Operating Temperature 4 to 120 F 20 to 49 C Relative Humidity 10 85 non condensing AC Input The data acquisition system is capable of measuring AC values to 9 5V Peak Peak S...

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