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2. MENU DESCRIPTIONS

One of the significant features of the TG400 is the Direct Access Keypad. Velocity, Zero and Gain are

just a single keystroke away. There are also 2 option keys. Opt2 is predefined as A-Trace split. Opt1 is
reserved for future use.

MENU FLOW

The following represents the menu flow of the TG400. Pressing the MENU/ESC key repeatedly will
sequence through the menus as shown.

Note: The branch if menu choices is determined by the MODE selection in the MAIN menu. I.E., if
FLAW were selected in the main menu, under the MODE command then the branch would follow the
flaw mode selected to GATE1 then GATE2 then PUL/REC.

Содержание TG400

Страница 1: ...ERATOR S MANUAL TG400 Ultrasonic Thickness Gage Featuring SplitView SplitScan AutoTrack NDT Systems Inc 17811 Georgetown Lane Huntington Beach CA 92647 Phone 714 893 2438 FAX 714 897 3840 Rev 1 0 07 0...

Страница 2: ...may have a question with C Chapter 2 deals with the menu structure a description of the features This would be recommended reading There are a few images to help you better understand the concepts C C...

Страница 3: ...0 000 nanoseconds Synchronization IP Initial Pulse IF Interface Delay Transducer Modes Single or dual element Display Modes RF positive negative full wave rectified Flaw Mode Two 2 gates selectable po...

Страница 4: ...ypical depending upon display back light usage 3 AA NiMH furnished Battery Charger 5 hours for full charge Transducer Cable Lemo Connectors Connectors Size Top Section 3 25 W x 7 L x 1 4 D Weight Incl...

Страница 5: ...ety of keys menu selections are available to change continuous variables such as range delay gate positions alarm levels and reject SCROLLING When a key is continuously depressed to change a variable...

Страница 6: ...A free catalog will be sent on request by contacting Customer Information at NDT Systems Inc 17188 Georgetown Lane Huntington Beach CA 92647 phone 714 893 2438 FAX 714 897 3840 In many cases equivale...

Страница 7: ...plit Opt1 is reserved for future use MENU FLOW The following represents the menu flow of the TG400 Pressing the MENU ESC key repeatedly will sequence through the menus as shown Note The branch if menu...

Страница 8: ...using many kinds of transducers to be successfully performed highly precise flaw detection tests may require refinements to the default variables to better match transducer instrument characteristics...

Страница 9: ...useful ness of this feature would be evident on material with varied attenuation properties such as painted and non painted surfaces or corroded back surfaces AGC may also help overall reading accura...

Страница 10: ...rease or Decrease the Measurement Threshold level Any echo or echo half cycle with amplitude equal to or greater than the Thickness Gate Threshold will be measured The threshold gate is the bar on the...

Страница 11: ...vide optimal personal viewing BACKLIGHT BKLT Turns the backlight to AUTO ON or OFF Auto will turn the backlight on while making measurements OO will turn the backlight on continuously and OFF will lea...

Страница 12: ...can not exceed the set Range of the Main Trace window For instance if the Main Trace is set to 3 the Track window can not be set to 4 Usually the Track window is something like 20 40 of the Main Trac...

Страница 13: ...12 12 instrument setups Note If the gage is powered ON with the ENTER button depressed the Factory Default setup will be loaded...

Страница 14: ...at the water path to the IF will be seen as well as the IF to destination target back wall Be sure this rule stays in place throughout the water path change probability It is OK to select a long MAIN...

Страница 15: ...es However such transducers will be relatively expensive and not readily attainable Standard inexpensive delay line transducers highly damped in the frequency range of 10 to 20 MHZ will ordinarily pro...

Страница 16: ...nd be used over a broad range of thicknesses test material attenuation may dictate a compromise While higher frequencies produce thinner thickness resolution attenuation is more pronounced at higher f...

Страница 17: ...llic Test Materials Virtually all the techniques and applications described above can be applied to a host of non metallic and composite materials It is not possible to cover the numerous applications...

Страница 18: ...way of observing these effects and to become quickly familiar with TG400 s controls is to perform the following procedure 1 Attach a highly damped broadband transducer such as the OPTIMA CHG053 or NO...

Страница 19: ...ive gain accordingly 11 To become familiar with the RANGE function position the cursor at RNG The up arrow key will squeeze the echos on the A trace to the left that is except for the initial pulse If...

Страница 20: ...t this point use the Up Dn arrow keys to change the length of the IP BLK gate in order to observe the effects of the control 16 The IF BLK interface echo blocking functions in a similar fashion as the...

Страница 21: ...Thickness readout the upper range calibration is complete Note that zero may change through up to 5 or 10 counts on the display before the indicated thickness changes Choosing zero roughly at the mid...

Страница 22: ...when using single element transducers with thin elastomeric membranes or on coated test objects 23 Cursor to ECHO BLOCKING GATE ECHO BLK Note the thick horizontal bar on the Thickness gate Use the rig...

Страница 23: ...ponents This mode of display RF reveals all the details of the signal If necessary to more faithfully reproduce the waveform in the figure above it may be necessary to key to GAIN and change the gain...

Страница 24: ...ange of the TG400 has been set to a long range and the RF display is selected there will be poor detail in the presentation of the RF In order to expand the RF display of the back echo under such cond...

Страница 25: ...he constant distance paths taken by the sound beam in traversing the dual delay lines a measurement can be made of the travel distance in the test object only Since the sound beam travels at a slight...

Страница 26: ...O to produce the thickness readout corresponding to a known thickness in this case 0 500 inch Note when you check the measurement of the 0 200 inch step note it produces 0 205 inch This error is due t...

Страница 27: ...0 If it close adjust the VEL to adjust to exact material velocity Option B Connect TG506 Transducer From MAIN Menu Select SETUP and PICK the appropriate transducer from the list Press ZERO ECHO front...

Страница 28: ...n this case the ECHO BLK will need to be extended out far enough to pass the multiple echo cycles of the first echo This will limit the low end thickness capability In the lower image a TG560P transdu...

Страница 29: ...ve right when you move the cart to the left the B Scan Cursor move to the right ENCODED L L Left to Left When you move the cart to the right the B Scan Cursor move right when you move the cart to the...

Страница 30: ...on screen from the thickest area to the thinnest area of your sample 2 Go to the SETUP Menu and select the PX506 if it is shown If not select TG506 This should set the instrument up in general terms A...

Страница 31: ...ld not have to go through the extra steps 11 Once calibrated press the B SCAN Key 12 Cursor to TYPE and use the Up Dn arrows to select T SCAN This will provide a Cross Section view of the area being i...

Страница 32: ...racteristics such as the presence of scattering reflectors impedance an isotropy Modula and other physical and mechanical properties all interact with ultrasonic sound beams somewhat differently than...

Страница 33: ...AA style batteries inserted into the bottom panel via the rear panel access cap The gage is charged via an external battery charger Once fully charged the TG400 will run for up to 20 hours before req...

Страница 34: ...ng optional TG400 accessories are available ATRP1 TG400 Carry Pouch A light weight leatherette protective case The TG400 fits firmly into a case like compartment supported at an adjustable angle stand...

Страница 35: ...exclusive remedy provided herein fails of its essential purpose or operates to deprive either party of the substantial value of its bargain then the Purchaser s exclusive remedy will be the return of...

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