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ACS A1270 Operation Manual

Electro-magnetic acoustic thickness gauge
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Electro-Magnetic Acoustic Thickness
Gauge
А1270
OPERATION MANUAL
Acoustic Control Systems Ltd.
Moscow 2016

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  • Page 1 Electro-Magnetic Acoustic Thickness Gauge А1270 OPERATION MANUAL Acoustic Control Systems Ltd. Moscow 2016...

  • Page 3: Table Of Contents

    A1270 Electro-Magnetic Acoustic Thickness Gauge Contents 1 DESCRIPTION AND INSTRUMENT OPERATION ..........5 1.1 PURPOSE OF THE INSTRUMENT ................5 1.1.1 Purpose and application range ..................5 1.1.2 Operating conditions ....................5 1.2 TECHNICAL SPECIFICATIONS ................6 1.3 DESIGN AND OPERATION ..................7 1.3.1 Design .........................
  • Page 4 A1270 Electro-Magnetic Acoustic Thickness Gauge Current Operation Manual (hereinafter referred to as "the operation manual") contains technical specifications, description, and operation principle of the А1270 Electro-Magnetic Acoustic Thickness Gauge (hereinafter referred to as “the thickness gauge" or "the instrument"), as well as information required for proper operation of the instrument.

  • Page 5: Description And Instrument Operation

    A1270 Electro-Magnetic Acoustic Thickness Gauge DESCRIPTION AND INSTRUMENT OPERATION 1.1 PURPOSE OF THE INSTRUMENT 1.1.1 Purpose and application range The instrument is a general purpose hand-held ultrasound thickness gauge. The instrument is designed for measurement of thickness of parts and walks of steel tubes and objects made of steel and metal alloys not using coupling fluids;...

  • Page 6: Technical Specifications

    A1270 Electro-Magnetic Acoustic Thickness Gauge 1.2 TECHNICAL SPECIFICATIONS Main technical specifications of the instrument are presented in Table 1. Table 1 Parameter name Value Range of the thickness for measurement with the from 0.6 to 50.0 S3850 5.0A0D8ES transducer, mm...

  • Page 7: Design And Operation

    A1270 Electro-Magnetic Acoustic Thickness Gauge 1.3 DESIGN AND OPERATION 1.3.1 Design The instrument represents an electronic unit (Figure 1) to which replaceable electromagnetic acoustic transducers (EMAT) shall be cable-connected. The upper and lower end faces of the instrument are enclosed with rubber plugs.
  • Page 8 A1270 Electro-Magnetic Acoustic Thickness Gauge ultrasound waves in the calibration sample is 3120 m/s. The sample is meant for adjustment of the instrument to the connected EMAT, as well as for prompt evaluation of the instrument performance (Figure 2). Figure 2...

  • Page 9: Operation Principle

    A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 3 The "Micro B" connector of the USB cable shall be connected by the symbol and/or the "B" letter facing upward (Figure 4). Figure 4 1.3.2 Operation principle Instrument's operation principle represents measurement of time of double traverse of ultrasonic waves through the object being inspected from one surface to another, which is further recalculated into the thickness value.

  • Page 10: Display

    A1270 Electro-Magnetic Acoustic Thickness Gauge display, edit the recordings doing additional measurements and record the data obtained into the correctable memory cells. The A-SCAN mode allows elimination of false readings caused by presence of discontinuities in the material of the object being inspected. In this mode the signals are displayed in the form of A-SCAN, and measurement conditions and criteria are determined directly during the operation.
  • Page 11 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 6 In the MEMORY mode the characters informing on the presence of the signal and its level, as well as the measurement method are always indicated below, information on the measurement units and a digital value of the measurement result is present as well.
  • Page 12 A1270 Electro-Magnetic Acoustic Thickness Gauge Table 3 presents a description of indicators of the acoustic contact and measurement method. Table 3 Appearance of Description the indicator Signal level is maximal, amplification of the receiving channel is set to the minimum value...
  • Page 13 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 7 Operation manual...
  • Page 14 A1270 Electro-Magnetic Acoustic Thickness Gauge Display appearance of the thickness gauge in the A-SCAN mode is presented in Figure 8. Figure 8 In the A-SCAN mode the display represents a graphic image of the echo-signal, digital value of the measurement result, information on the measurement units and signal amplification.

  • Page 15: Keypad

    A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 9 Display appearance of the thickness gauge in the A-SCAN mode with an enabled vertical layout (orientation) is presented in Figure 10. Figure 10 1.3.5 Keypad Instrument's keypad (Figure 11) has 11 functional keys and the instrument On/Off key.
  • Page 16 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 11 Main functions of the keys: (ON / OFF) is used to switch On/Off the instrument. ATTENTION: THE INSTRUMENT WILL BE AUTOMATICALLY SWITCHED OFF AFTER 10 MINUTES PASS FROM THE MOMENT ANY KEY IS PRESSED AND NO MEASURMENT PROCESSES ARE ACTIVE.
  • Page 17 A1270 Electro-Magnetic Acoustic Thickness Gauge key switches between the measurement modes and the SETUP mode, and vice versa. key (ENTER) depending on the operation mode and state of the thickness gauge can perform various functions. keys are used to select and edit the active parameters. Their functions are similar for various instrument's operation modes and are self-explanatory hence their icons correspond to their functions.

  • Page 18: Proper Use

    A1270 Electro-Magnetic Acoustic Thickness Gauge PROPER USE 2.1 OPERATING RESTRICTIONS The instrument is designed to be operated under conditions listed in paragraph Ошибка! Источник ссылки не найден.. 2.2 MAKING THE INSTRUMENT READY FOR OPERATION 2.2.1 Connecting the transducers EMAT is used to determine the thickness of the object being inspected.

  • Page 19: Configuring And Adjusting The Instrument To The Parameters Of The Emat Being Used

    A1270 Electro-Magnetic Acoustic Thickness Gauge Press the key manually to switch Off the instrument. The instrument as well will be automatically switched off after 10 minutes pass from the moment any key is pressed and if there are no active measurements.
  • Page 20 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 15 By means of the keys go to the line with the name of the connected probe (transducer) and press the key to select it (Figure 16). Figure 16 After the transducer is selected the probe testing process instrument's adjustment to its individual parameters will be started automatically.
  • Page 21 A1270 Electro-Magnetic Acoustic Thickness Gauge Enter the SETUP mode. Select the "Probe" line and press the F1 key (Test). The screen will display the message: “PROBE ZEROING - Take the probe in hand, and press ENTER”. Not letting EMAT to contact the calibration sample, press the key.

  • Page 22: Working With The Instrument

    A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 17 2.3 WORKING WITH THE INSTRUMENT 2.3.1 Working with the instrument During inspection a temperature dependence of the ultrasound propagation velocity in chilled or heated materials. For the best measurement results the instrument must be adjusted to the ultrasound velocity by the calibration sample with the same temperature as of the temperature of the object being inspected.
  • Page 23 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 18 The keys being active in any of the menus of the SETUP mode: - scrolling the active line through the menu options, transition is carried out cyclically in both directions. The parameter highlighted by the active line becomes available for selection or editing;...
  • Page 24 A1270 Electro-Magnetic Acoustic Thickness Gauge Menu option Parameter value Description (parameter) Brightness, % From 20 to 100 Setting the display brightness level Operation manual...
  • Page 25 A1270 Electro-Magnetic Acoustic Thickness Gauge Additional menu options of the SETUP-MEMORY mode and their corresponding parameters (in the metric measurement system) and functions are presented in Table 5. Table 5 Menu option Parameter value Description (parameter) Off – switching Off of the Monitor.
  • Page 26 A1270 Electro-Magnetic Acoustic Thickness Gauge Menu option Parameter value Description (parameter) Amplification, from 0 to 40 Amplification setting Selects the appearance type of A-Scan image Filling / Contour the signal in the А-SCAN mode 2.3.2.1 The MODE option Select the measurement mode: MEMORY - with display of the measurement results stored in the memory on the instrument's screen;...
  • Page 27 A1270 Electro-Magnetic Acoustic Thickness Gauge F1 (Test) - starts the testing procedure of EMAT adjustment of the instrument to the selected transducer; F3 (Open) or - enters the transducers' library. Screen appearance of the Probe option is presented in Figure 20.
  • Page 28 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 21 2.3.2.3 MATERIAL option Enters the materials' library. Active keys: F2 (Open) or - enters the materials' library, to record new materials into the memory and edit the existing ones, and to select the material for operation.
  • Page 29 A1270 Electro-Magnetic Acoustic Thickness Gauge The NEW menu option is listed the first in the menu, and then the following go: the names and propagation velocity of ultrasound waves in the material types recorded in the instrument's memory (Figure 23).
  • Page 30 A1270 Electro-Magnetic Acoustic Thickness Gauge When the material is created or the existing material recorded in the instrument's memory is being edited, the screen will show a current name of the material with an inverse active character in the material field name, propagation velocity of ultrasound waves in the material and tables with the available characters.
  • Page 31 A1270 Electro-Magnetic Acoustic Thickness Gauge Purpose Substitutes the active character with the character from the table. The next character will be active after substitution F1 ( Exits the editor saving the changes Switching between the characters in the letter table, where ХХХ:...
  • Page 32 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 25 Upon pressing the key F2 (Delete) the following message will be displayed: "Remove material?" (Figure 26). You can confirm deletion by pressing F1 (Yes), or cancel it by pressing F3 (No). Figure 26 2.3.2.4 The CALIBRATING ON Option...
  • Page 33 A1270 Electro-Magnetic Acoustic Thickness Gauge – decreases the thickness value of the calibration sample. F2 ( + ) or Figure 27 Setting the thickness of the calibration sample and a procedure of the velocity calibration with the sample. Do the following to calibrate the velocity: Set the thickness of the sample.
  • Page 34 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 28 Saving the velocity value obtained during calibration. Active keys: F1 (Yes) - saving the obtained velocity value for the material existing in the library which shall be selected from the list of the materials, (Figure 29) or for the new material: select the "New"...
  • Page 35 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 29 Figure 30 2.3.2.5 Monitor option (only for the MEMORY mode) Setting the actuation conditions for color, sound and vibro-alarms during measurements. Selecting the actuation condition: Operation manual...
  • Page 36 A1270 Electro-Magnetic Acoustic Thickness Gauge INSIDE - the measurement result is within the specified range; OUTSIDE - the measurement result is out of the specified range; OFF - Monitor is Off. Screen appearance of the instrument's Monitor option is presented in Figure 31.
  • Page 37 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 32 2.3.2.7 The LIMIT: end (only for the MEMORY mode) Sets the upper limit of actuation of the Monitor. Permissible values vary from 1 to 300 mm. Screen appearance of the instrument's LIMIT: end option is presented in Figure 33.
  • Page 38 A1270 Electro-Magnetic Acoustic Thickness Gauge Screen appearance of the instrument's AVERAGING, QUANTITY option is presented in Figure 35. Active keys: F1 ( – ) or – decreases the averaging value. – increases the averaging value. F2 ( + ) or Figure 34 2.3.2.9 The DISCRETE option...
  • Page 39 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 35 2.3.2.10 The CLEAR MEMORY option (only for the MEMORY mode) Deleting the measurement results from the memory. The filling percentage of the memory with the measurement results is specified as an option parameter.
  • Page 40 A1270 Electro-Magnetic Acoustic Thickness Gauge F3 (No) - cancels data deletion. Figure 37 2.3.2.11 The SCAN BEGINNING (only for the А-SCAN mode) The SCAN BEGINNING option is meant for setting the beginning (start) of the display area of А-Scan on the screen.
  • Page 41 A1270 Electro-Magnetic Acoustic Thickness Gauge 2.3.2.12 The SCAN END option (only for the А-SCAN mode) The SCAN END option is meant for setting the end of the display area of А-Scan on the screen. Value of the scanning (scan) end can be set within the range from 5 to 300 mm.
  • Page 42 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 40 2.3.2.14 The Gate: end option (only for the А-SCAN mode) The Gate: end option is meant for setting the upper boundary of the strobe. Value of the gate end (end of the strobe) can be set within the range from 1 to 300 mm.
  • Page 43 A1270 Electro-Magnetic Acoustic Thickness Gauge Screen appearance of the instrument's Amplification option is presented in Figure 42. Active keys: F1 ( – ) or – decreases the amplification value. – increases the amplification value. F2 ( + ) or Figure 42 2.3.2.16 The A-SCAN TYPE option (only for the А-SCAN mode)
  • Page 44 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 43 2.3.2.17 The ORIENTATION option Selecting the image orientation type – Hor.R. / Vert / Hor.L. Screen appearance of the instrument's ORIENTATION option is presented in Figure 43. Active keys: F1 (Hor.L.) – horizontal left.
  • Page 45 A1270 Electro-Magnetic Acoustic Thickness Gauge For convenient operation of the thickness gauge the main events of the thickness gauge during measurements, adjustment and key pressing are accompanied by sound indication. The sound indication as well is used for auditory monitoring of reception of ultrasonic signals. The sound signals inform the operator on the current processes not influencing the measurement results.
  • Page 46 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 46 2.3.2.20 The LANGUAGE option Switching between the instrument's interface languages: Russian; English; German; French; Italian; Portuguese; Spanish; Chinese. Screen appearance of the instrument's LANGUAGE option is presented in Figure 47. Active keys: F1 (←) – selects the language by scrolling to the left;...
  • Page 47 A1270 Electro-Magnetic Acoustic Thickness Gauge Figure 47 2.3.2.21 The MEASURING UNITS option Selects the measurement unit system - MM / INCHES. Screen appearance of the instrument's MEASURING UNITS option is presented in Figure 48. Active keys: F1 (mm) - the metric measurement units. The thickness is displayed in mm, the velocity is displayed in в...

  • Page 48: The Memory Mode

    A1270 Electro-Magnetic Acoustic Thickness Gauge Screen appearance of the instrument's BRIGHTNESS option is presented in Figure 49. Active keys: F1 (–) or - decreases the screen brightness. F3 (+) or - increases the screen brightness. Figure 49 2.3.3 The MEMORY mode...
  • Page 49 A1270 Electro-Magnetic Acoustic Thickness Gauge If the sound indication is enabled in the menu of the Monitor, the changes of the readings will be accompanied by the quick sound signals. Screen appearance actuation condition Monitor-INSIDE Monitor-OUTSIDE is presented in Figure 51 (the measurement result is displayed in red if the Monitor's actuation condition is met, or in white if the Monitor's actuation condition is not met).
  • Page 50 A1270 Electro-Magnetic Acoustic Thickness Gauge N o t e – The result will be recorded into the first free cell of the last existing group. You can correct the value recorded into the instrument's memory according to the instructions given in paragraph 2.3.3.3.

  • Page 51: The А-Scan Mode

    A1270 Electro-Magnetic Acoustic Thickness Gauge is used to enter the mode of viewing and editing of the results. Upon pressing key, the character (Figure 53) will appear on the screen. Figure 53 is used to return to the MEMORY mode.
  • Page 52 A1270 Electro-Magnetic Acoustic Thickness Gauge to another one. This time is recalculated into the thickness value of the inspected object using the propagation velocity of ultrasound pulses in the material. In the А-SCAN mode when working with the vertical orientation the screen is split into two parts: the upper part shows the signal in the form of А-Scan, and the lower part shoes the...
  • Page 53 A1270 Electro-Magnetic Acoustic Thickness Gauge Horizontal movement of the strobe Operation manual...
  • Page 54 A1270 Electro-Magnetic Acoustic Thickness Gauge Table 9 contains description of the purposes of the keys for the second active icon. Table 9 Purpose Changing the scanning length Changing the amplification value Horizontal scrolling of the signal on the screen Table 1 0 contains description of the purposes of the keys for the third active icon.
  • Page 55 A1270 Electro-Magnetic Acoustic Thickness Gauge N o t e – The result will be recorded into the first empty cell of the last existing group created in the MEMORY mode. To select the group and to view the recorded value, go to the MEMORY mode.

  • Page 56: Doing Measurements

    A1270 Electro-Magnetic Acoustic Thickness Gauge The А-Scan saved for the selected result will be displayed in the upper part of the screen (Figure 58). Figure 58 To return to the view mode of the results, press the F2 (А-Scan) key.

  • Page 57: Functional Check-Out Of The Instrument During Inspection

    A1270 Electro-Magnetic Acoustic Thickness Gauge instrument's screen will display readings which can slightly vary when inspecting the small- diameter pipes and the transducer is shaking a little. These redings remain stable when inspecting the flat objects. Wait for 1-2 seconds after the readings are indicated to evaluate their stability.
  • Page 58 A1270 Electro-Magnetic Acoustic Thickness Gauge In the "MS Excel" program In the "Notepad" program Figure 59 – Digital data displayed by the external programs Operation manual...

  • Page 59: Technical Maintenance

    A1270 Electro-Magnetic Acoustic Thickness Gauge TECHNICAL MAINTENANCE Technical maintenance of the thickness gauge represents cleaning the electronic unit from dust and dirty and charging the accumulator. 3.1 ACCUMULATOR Instrument's accumulator is designed to be operated in a broad temperature range. At negative temperatures accumulator capacity decreases since at the lower value of the temperature range the capacity is by 15% less as compared with the normal temperature conditions.

  • Page 60: Storage

    A1270 Electro-Magnetic Acoustic Thickness Gauge STORAGE The thickness gauge shall be stored in the case included into the instrument's delivery kit. Storage conditions shall correspond to GOST 15150-69 (placement category 1). The instruments should be shelf stored. The arrangement of the instruments in warehouses shall enable their free movement by the personnel and unrestricted access to them.

  • Page 61: Transportation

    A1270 Electro-Magnetic Acoustic Thickness Gauge TRANSPORTATION The thickness gauge should be transported in the case include into the instrument's delivery kit. Transportation conditions with regard to the impact of the external environment climatic factors should correspond to storage conditions (placement category 5) according to GOST 15150-69.
  • Page 62 A1270 Electro-Magnetic Acoustic Thickness Gauge Operation manual...
  • Page 63 A1270 Electro-Magnetic Acoustic Thickness Gauge Operation manual...

  • Page 64: Operation Manual

    A1270 Electro-Magnetic Acoustic Thickness Gauge Electro-Magnetic Acoustic Thickness Gauge A1270 OPERATION MANUAL Revision: August 2016 Operation manual...

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