MITECH MT660 Скачать руководство пользователя страница 21 | Manualshive

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MITECH MT660 Скачать руководство пользователя страница 21

mvip@mitech-ndt.com

6. Measuring Technologies

6.1 Measuring Method

Single point measuring method: Put the probe to any point in the workpiece, the instrument

will show the probe located place thickness.

Two point measuring method: Using the probe to measure two times in the same point of the

tested piece, in two measuring, the probe parting plane keep 90º, the smaller value should be the
thickness of this point.

Multi-point measurement method: Taking times testing in an approximately 30 mm diameter

circular around, the minimum value is the thickness value of the tested piece.

Continuous measurement method: using single point measurement to take continuous

measurement along the specified path with less 5mm interval, the minimum value is the thickness
value of the tested piece.

6.2 Wall Measurement

During measuring, the probe parting plane can be along with the tube axis or vertical tube

axis. If meeting larger tube diameter, you should measure at the vertical axis. And when the tube
diameter is smaller, you should measure in both directions and the minimum value is thickness
value.

7 Servicing

When the gauge appears some other abnormal phenomena, please do not dismantle or adjust
any fixedly assembled parts. Fill in and present the warranty card to us. The warranty service can
be carried on.

8 Transport and Storage



Keep it away from vibration, strong magnetic field, corrosive medium, dumpiness and dust.
Storage in ordinary temperature.



With original packing, transport is allowed on the third grade highway.

[email protected]

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Содержание MT660

Страница 1: ...Mul ti Mode Ultrasonic Thickness Gauge MT660 User s Manual MITECH CO LTD www mitech ndt com www ponpe com ...

Страница 2: ...0 5 Operations 11 5 1 Setting the Work Mode 11 5 2 Probe Selection 11 5 3 Perform Probe Zero 11 5 4 Sound Velocity Calibration 12 5 5 Making Measurements 13 5 6 View Mode Setting 14 5 7 Nominal Thickness Setting 15 5 8 Limit Setting 15 5 9 Changing Resolution 16 5 10 Memory Management 16 5 11 Key Sound Setting 17 5 12 Warn Sound Setting 17 5 13 LCD Brightness Setting 17 5 14 Display Standby Settin...

Страница 3: ...mvip mitech ndt com 6 2 Wall Measurement 21 7 Servicing 21 8 Transport and Storage 21 Appendix A Sound Velocities 22 Appendix B Applications Notes 23 User Notes 25 sale ponpe com ponpe com ...

Страница 4: ...uetooth module it can print test report wirelessly USB 2 0 communication port Online transfer of the measured data to PC via USB 1 2 Measuring Principle The ultrasonic thickness gauge determines the thickness of a part or structure by accurately measuring the time required for a short ultrasonic pulse generated by a transducer to travel through the thickness of the material reflect from the back o...

Страница 5: ...wer limit Description N02 2 5 14 3 0mm 300 0mm In Steel 40mm in Gray Cast Iron HT200 20mm for thick highly attenuating or highly scattering materials N05 5 10 1mm 600 0mm In Steel Φ20mm 3 0mm Normal Measurement N05 90 5 10 1mm 600 0mm In Steel Φ20mm 3 0mm Normal Measurement N07 7 6 0 65mm 200 0mm In Steel Φ15mm 2 0mm For thin pipe wall or small curvature pipe wall measurement HT5 5 12 1 600mm In S...

Страница 6: ...7 7MHz 11 Probe HT5 5MHz 12 Data Pro Software 1 13 USB Cable 1 14 Portable Bluetooth thermal printer 1 Including charger manual and other parts 1 6 Operating Conditions Operating Temperature 0 50 Storage Temperature 20 70 Relative Humidity 80 The surrounding environment should avoid of vibration strong magnetic field corrosive medium and heavy dust 2 Structure Feature 1 The Main Body 2 Keypad 3 TF...

Страница 7: ...count Couple Indicate the coupling status Nominal thickness the nominal thickness of the test piece 2 2 Keypad Definitions The instrument is designed to give the user quick access to all of the instrument s functions Its easy to use menu system allows any function to be accessed with several key presses Function keys to select accordingly the function on the screen In the following sections of thi...

Страница 8: ...material it is partly absorbed If the material through which the sound travels has any grain structure the sound waves will experience scattering Both of these effects reduce the strength of the waves and thus the gauge s ability to detect the returning echo Higher frequency ultrasound is absorbed and scattered more than ultrasound of a lower frequency While it may seem that using a lower frequenc...

Страница 9: ...e shape and roughness of the test surface are of paramount importance Rough uneven surfaces may limit the penetration of ultrasound through the material and result in unstable and therefore unreliable measurements The surface being measured should be clean and free of any small particulate matter rust or scale The presence of such obstructions will prevent the transducer from seating properly agai...

Страница 10: ...sure mode immediately The instrument carries out a self check and then switches over to the measure mode automatically if there is no key operation The instrument is now ready for the first measurement The instrument will automatically reload last settings It has a special memory that retains all of its settings even when the power is off To shut off the instrument keep pressing down key until shu...

Страница 11: ...ess in the Test Settings dialog 5 2 Probe Selection Be sure to set the right probe model to the instrument Otherwise there will be erroneous In the Probe Model dialog Use the key and the key to scroll to the probe model currently being used Finally press or F3 to confirm the selection Or press to cancel and exit 5 3 Perform Probe Zero Note Probe Zero operation applies only to Pulse Echo mode Do no...

Страница 12: ...arity over large ranges The Two point calibration allows for greater accuracy over small ranges by calculating the probe zero and velocity Note One and Two point calibrations must be performed on material with the paint or coating removed Failure to remove the paint or coating prior to calibration will result in a multi material velocity calculation that may be different from the actual material v...

Страница 13: ...calibration point making sure that the transducer sits flat against the surface of the sample The display should show some probably incorrect thickness value and the coupling status indicator should appear steadily 4 Having achieved a stable reading remove the transducer If the displayed thickness changes from the value shown while the transducer was coupled repeat step 3 5 Press the key to enter ...

Страница 14: ...gainst the material If the condition persists it may be necessary to select a different transducer size or frequency for the material being measured While the transducer is in contact with the material that is being measured the instrument will perform four measurements every second updating its display as it does so When the transducer is removed from the surface the display will hold the last me...

Страница 15: ... every second and displays the readings while scanning While the transducer is in contact with the material being measured the gauge is keeping track of the minimum and maximum measurement it finds The transducer may be scrubbed across a surface and any brief interruptions in the signal will be ignored 5 7 Nominal Thickness Setting In Differential measurement mode it needs to set the nominal thick...

Страница 16: ... 10 2 View the Saved Record This function provides the user with the ability to view the records in a desired data group previously saved in memory Following is the steps Activate the Memory Manager dialog as right figure Press to move the cursor Press or F3 key to open the View Record Data dialog see next figure Press to move the cursor to the desired record Press F3 to delete the focused record ...

Страница 17: ...f the gauge will be cleared Note Once cleared the data is not able to be recovered 5 11 Key Sound Setting Key sound can be configured to on or off When the key sound is set to on the buzzer inside the main unit would make a short audible alarm while press the key each time 5 12 Warn Sound Setting Warning sound can be configured to on or off If the warning sound is set to on the buzzer inside the m...

Страница 18: ... to power off state is controlled by the setting of automatic shutdown delay The time delay can be configured by the user in the auto shutdown delay dialog box Press arrow keys or F2 key to select the desired item Selecting Disable item will forbid the main unit switching automatically into power off state Note If the voltage of the battery is too low the LCD screen will show Battery Exhausted the...

Страница 19: ...lose the dialog box 5 20 Reset System In case the instrument can no longer be operated or you need to make a basic initialization factory setting you can reset the instrument to original The instrument can be reset by the System Reset function All the stored data inside the main unit and user calibration will be cleared during system reset And the instrument settings will be reset to default To re...

Страница 20: ...stored inside the instrument You can also print out the test result directly after each test On the main screen after each test simple press F1 to print out that test result 5 22 USB Communication The instrument is equipped with a USB port on upper left of the instrument The PC can be connected with the instrument via the USB cable Lift the rubber flaps to uncover the connection port Insert the mi...

Страница 21: ...t along the specified path with less 5mm interval the minimum value is the thickness value of the tested piece 6 2 Wall Measurement During measuring the probe parting plane can be along with the tube axis or vertical tube axis If meeting larger tube diameter you should measure at the vertical axis And when the tube diameter is smaller you should measure in both directions and the minimum value is ...

Страница 22: ...0 233 5930 Cast Iron 0 173 0 229 4400 5820 Lead 0 094 2400 Nylon 0 105 2680 Silver 0 142 3607 Gold 0 128 3251 Zinc 0 164 4170 Titanium 0 236 5990 Tin 0 117 2960 Epoxy resin 0 100 2540 Ice 0 157 3988 Nickel 0 222 5639 Plexiglass 0 106 2692 Polystyrene 0 092 2337 Porcelain 0 230 5842 PVC 0 094 2388 Quartz glass 0 222 5639 Rubber vulcanized 0 091 2311 Teflon 0 056 1422 Water 0 058 1473 sale ponpe com...

Страница 23: ...ng measurements on hot surfaces it may also be necessary to use a specially constructed high temperature transducer These transducers are built using materials which can withstand high temperatures Even so it is recommended 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 b...

Страница 24: ...include some cast materials concrete wood fiberglass and some rubber Couplants All ultrasonic applications require some medium to couple the sound from the transducer to the test piece Typically a high viscosity liquid is used as the medium The sound used in ultrasonic thickness measurement does not travel through air efficiently A wide variety of couplant materials may be used in ultrasonic gaugi...

Страница 25: ...ng to repair sheet In accordance with the international relevant regulations the following are not within the scope of free warranty Damage caused by man made or improper keeping Self dismantle or non special repair shop dismantle Do not follow the requirement of service registration or warranty expired Consumable parts Service promise MITECH users have lifelong maintenance service Free maintenanc...

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