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DAKOTA ULTRASONICS MX-5, Руководство по эксплуатации

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DAKOTA ULTRASONICS MX-5 Скачать руководство пользователя страница 42

Dakota Ultrasonics 

 

38

An additional important consideration when measuring laminates, is that 

any included air gaps or pockets will cause an early reflection of the 

ultrasound beam.  This effect will be noticed as a sudden decrease in 

thickness in an otherwise regular surface.  While this may impede accurate 

measurement of total material thickness, it does provide the user with 

positive indication of air gaps in the laminate. 

Содержание MX-5

Страница 1: ...OPERATION MANUAL DAKOTA ULTRASONICS MODEL MX 5 DL ULTRASONIC THICKNESS GAUGE P N P 115 0002 Rev 1 90 January 2008...

Страница 2: ...a Ultrasonics Every precaution has been taken in the preparation of this publication Dakota Ultrasonics assumes no responsibility for errors or omissions Neither is any liability assumed for damages r...

Страница 3: ...X B APPLICATION NOTES APPENDIX C SOUND VELOCITIES OF COMMON MATERIALS WARRANTY INFORMATION 1 3 3 7 9 10 12 13 14 18 30 34 36 40 42 DISCLAIMER Inherent in ultrasonic thickness measurement is the possib...

Страница 4: ...Dakota Ultrasonics blank page...

Страница 5: ...sured This manual is presented in three sections The first section covers operation of the MX 5 DL and explains the keypad controls and display The second section provides guidelines in selecting a tr...

Страница 6: ...Dakota Ultrasonics 2 blank page...

Страница 7: ...lay test by illuminating all of the segments in the display After one second the tool will display the internal software version number and the current file location and status After displaying the ve...

Страница 8: ...is used to adjust the sound velocity value that the MX 5 DL will use when calculating thickness The tool will either calculate the sound velocity from a sample of the material being measured or allow...

Страница 9: ...s of the data logger Refer to page 24 for further information regarding the use of the UP arrow key and the data logger The DOWN arrow key has three functions When the MX 5 DL is in the CAL mode this...

Страница 10: ...ata logging feature of the MX 5 DL This key clears the contents of an entire file or individual storage locations The CLR key is also used to send an obstruct ObSt to an individual storage location Th...

Страница 11: ...measured until a new measurement is made Additionally when the battery voltage is low the entire display will begin to flash When this occurs the batteries should be replaced These eight vertical bar...

Страница 12: ...limeters If the displayed thickness exceeds 199 99 millimeters the decimal point will shift automatically to the right allowing values up to 1999 9 millimeters to be displayed When the IN symbol is on...

Страница 13: ...t in the MX 5 DL The transducer must be used correctly in order for the MX 5 DL to produce accurate reliable measurements Below is a short description of the transducer followed by instructions for it...

Страница 14: ...ly called couplant This fluid serves to couple or transfer the ultrasonic sound waves from the transducer into the material and back again Before attempting to make a measurement a small amount of cou...

Страница 15: ...er is in contact with the material that is being measured the MX 5 DL will perform four measurements every second updating its display as it does so When the transducer is removed from the surface the...

Страница 16: ...g which will inhibit proper transducer coupling Extremely rough surfaces such as the pebble like finish of some cast iron will prove most difficult to measure These kinds of surfaces act on the sound...

Страница 17: ...lug the transducer into the MX 5 DL Make sure that the connectors are fully engaged Check that the wearface of the transducer is clean and free of any debris 3 The metal probe disc is on the top end o...

Страница 18: ...order for the MX 5 DL to make accurate measurements it must be set to the correct sound velocity for the material being measured Different types of material have different inherent sound velocities F...

Страница 19: ...s value and the Stability Indicator should have nearly all its bars on 5 Having achieved a stable reading remove the transducer If the displayed thickness changes from the value shown while the transd...

Страница 20: ...rial to be measured 4 Press the CAL key once more to exit the calibration mode The MX 5 DL is now ready to perform measurements NOTE At any time during the calibration procedure IN MM IN s or M s flas...

Страница 21: ...ple The display should show some probably incorrect thickness value and the Stability Indicator should have nearly all its bars on 5 Having achieved a stable reading remove the transducer If the displ...

Страница 22: ...ay measurements in both the English IN and Metric MM systems The following steps outline the procedure for changing units 1 Press ON OFF key to power up the MX 5 DL 1 Press the MODE key to activate fe...

Страница 23: ...MODE key to activate features and settings 6 Press the UP Down arrow keys to scroll to the LItE symbol 7 Press the SEND key to toggle the status of the back light on off auto 8 Press the MODE key onc...

Страница 24: ...isplay will begin flashing ALAr alarm followed by the status on off Use the UP and DOWN arrow keys to scroll to SCAn mode Press the SEND key to toggle scan mode on off While scanning the display is up...

Страница 25: ...mode Alarm Mode 1 Press ON OFF key to power up the MX 5 DL 2 Press the MODE key to activate features and settings 3 Mode will start with ALAr feature and current status 4 Press send key to toggle ALA...

Страница 26: ...gative difference from an entered nominal value The following steps outline the procedure for setting up this feature Differential Mode 1 Press ON OFF key to power up the MX 5 DL 2 Press the MODE key...

Страница 27: ...how to collect data using any standard communications program Connecting To a Computer 1 Connect the accessory cable part N 306 0010 to the 2 pin jack located on the bottom of the MX 5 DL and the 9 p...

Страница 28: ...gger The MX 5 DL is equipped with an on board data logging feature This will prove to be a valuable reporting tool for inspection purposes It will increase efficiency by reducing the time it takes to...

Страница 29: ...play will flash the FILE F 04 The selected file symbol 6 Press the MEM key once again to advance to the storage locations in the file selected Note The display will flash the current storage location...

Страница 30: ...g the steps in Using The Data Logger have been completed and step 8 is being repeated 1 Press the UP DOWN arrow keys to move to the location to be over written Note If the user attempts to write to a...

Страница 31: ...steps 1 Press the ON OFF key to power up the MX 5 DL 2 Press the MEM key to activate the data logging functions and settings 3 Press the SEND key to enter file setup 4 Press the UP DOWN arrow keys to...

Страница 32: ...s the CLR key CLr Will be displayed 3 Press the CLR key once again to clear all files Sending All Files to a Computer At the end of the inspection process or end of the day the user may require the re...

Страница 33: ...indows 3 1 Terminal Window 95 98 HyperTerminal and then printed The procedure for printing a file is outlined below 1 Refer to the section on Connecting to a Computer page 23 before proceeding 2 Press...

Страница 34: ...cer for a job is critical to being able to easily perform accurate and reliable measurements The following paragraphs highlight the important properties of transducers which should be considered when...

Страница 35: ...y While it may seem that using a lower frequency transducer might be better in every instance low frequencies are less directional than high frequencies Thus a higher frequency transducer would be a b...

Страница 36: ...alibration to Known Thickness with a high temperature transducer See Appendix B for more information on measuring materials with a high temperature transducer Selection of the proper transducer is oft...

Страница 37: ...MX 5 DL Ultrasonic Thickness Gauge 33 blank page...

Страница 38: ...t to water and petroleum products Power Source Two AA size 1 5 volt alkaline or 1 2 volt NiCad cells 200 hours typical operating time on alkaline 120 hours on NiCad Display Liquid Crystal Display 4 5...

Страница 39: ...MX 5 DL Ultrasonic Thickness Gauge 35 blank page...

Страница 40: ...ng axis of the pipe For smaller pipe diameters two measurements should be performed one with the wearface gap perpendicular another with the gap parallel to the long axis of the pipe The smaller of th...

Страница 41: ...nded that the probe be left in contact with the surface for as short a time as needed to acquire a stable measurement While the transducer is in contact with a hot surface it will begin to heat up and...

Страница 42: ...aps or pockets will cause an early reflection of the ultrasound beam This effect will be noticed as a sudden decrease in thickness in an otherwise regular surface While this may impede accurate measur...

Страница 43: ...MX 5 DL Ultrasonic Thickness Gauge 39 blank page...

Страница 44: ...128 3 2 5 1 Ice 0 157 3 9 8 8 Iron 0 232 5 8 9 3 L e a d 0 085 2 1 5 9 M a g n e s i u m 0 228 5 7 9 1 Mercury 0 057 1 4 4 8 N i c k e l 0 222 5 6 3 9 Nylon 0 102 apprx 2 5 9 1 Paraffin 0 087 2 2 1 0...

Страница 45: ...MX 5 DL Ultrasonic Thickness Gauge 41 blank page...

Страница 46: ...implied with respect to this product Dakota Ultrasonics specifically disclaims any implied warranties of merchantability or fitness for a particular purpose Some states or provinces do not allow limit...

Страница 47: ...ity Materials to Avoid none known Hazardous Polymerization will not occur Hazardous Decomposition or Byproducts none known SECTION 6 HEALTH HAZARD AND FIRST AID DATA Routes of Entry 1 Skin not likely...

Страница 48: ......

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