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RE NEW TO FASTENER MEASUREMENT CHAPTER 3 QUICK START GUIDE ..............3 ....................3 VERVIEW BOLTSCOPE PRO ........... 3 ETTING THE READY BOLTSCOPE PRO ............3 ETTING UP THE ........6 REATING A ROUP TO TORE EASUREMENTS ............14 ETTING THE...
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............ 36 RANSDUCER CONTACT REQUIREMENTS ................37 OLT END REFLECTORS CHAPTER 7 TRANSDUCER SELECTION ............39 ..............39 ELECTING THE RANSDUCER CHAPTER 8 MEASURING SYSTEM ZERO (CALIBRATION) ......40 ..................40 NTRODUCTION ..............41 ALIBRATION ERO MISNOMER ................41 SING A STANDARD BOLT &...
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AVING A ETUP 15.4 U ..............179 SING THE EFAULT ETUP CHAPTER 16 USING THE UTILITY SOFTWARE .......... 182 16.1 C ............182 OMPUTER YSTEM EQUIREMENTS 16.2 I BOLTSCOPE PRO 1.X ............182 NSTALLING 16.3 U ..............182 PGRADING THE IRMWARE...
The BOLTSCOPE PRO measures load on the fastener by measuring the amount the fastener stretches. As load is applied to the fastener, it stretch’s just as a spring would stretch.
3) If a temperature sensor is being used, connect the sensor to the BOLTSCOPE PRO. 3.3 Setting up the BOLTSCOPE PRO Please Read: In this section the BOLTSCOPE PRO will be setup in its simplest form. Remember this is only a quick start guide to get the user up and measuring bolts.
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Selecting the Quick Start Setup 1) Press the ON/OFF key to power up the BOLTSCOPE PRO. 2) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right and the ESC key multiple times to tab left until the SETUP menu is highlighted and displaying the submenu items.
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BOLTSCOPE PRO - Bolt Tension Monitor Selecting the Units Note: The Quick Start setup, selected in the previous section, automatically defaults to english units – inches. Follow the procedure below to change the units to metric, if needed. 1) Press the MENU key multiple times to tab right and the ESC key multiple times to tab left until the MATL menu is highlighted and displaying the submenu items.
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ESC to cancel selecting the material type. 3.4 Creating a New Group to Store Measurements Now that the BOLTSCOPE PRO is all setup, this section will explain how to get started measuring unloaded initial lengths. In order to do this, we need to create a group that contains bolts.
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BOLTSCOPE PRO - Bolt Tension Monitor Creating a Group Name 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right, and the ESC key multiple times to tab left, until the DATA menu is highlighted and displaying the submenu items.
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8) Use the CLR key to backspace if necessary. 9) Repeat steps 6 - 8 until the Group Name is completed. 10) Press the OK key to save the Group Name and return to the Group List Items menu, or ESC to cancel entering the Group Name.
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BOLTSCOPE PRO - Bolt Tension Monitor 3) Use the UP, DOWN, LEFT, & RIGHT arrow keys to highlight the appropriate alpha characters. 4) Press the ENTER key to select a character and advance to the next field of the Group Note.
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5) Repeat steps 3 & 4 until the NUM BOLTS value is correctly displayed. 6) Press the OK key to save the NUM BOLTS and return to the Group List Items menu, or ESC to cancel entering the NUM BOLTS.
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“NOT ENOUGH MEMORY“ will be displayed. Press the OK or ESC key to return to the Group List Items menu. It may be necessary to free some memory in the BOLTSCOPE PRO at this time. Selecting the Starting Bolt Number Note: Depending on the application and layout of the project, the user won’t always want the starting bolt to be 1.
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1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until START BOLT NUM is highlighted. 2) Press the ENTER key to display the Digits Edit Box. 3) Press the UP and DOWN arrow keys to scroll the highlighted value.
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BOLTSCOPE PRO - Bolt Tension Monitor Selecting the Auto Increment Direction The Auto Increment feature gives the user the ability to specify which direction to advance the cursor after storing a reading. 1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until INCR.
3.5 Setting the Approximate Length In order to utilize the AUTO SET feature of the BOLTSCOPE PRO, when measuring reference lengths, the BOLTSCOPE PRO has to know where to start looking for the detection. We can accomplish this by entering an approximate length into the gauge.
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BOLTSCOPE PRO - Bolt Tension Monitor used to pin point a specific detection area. This feature will be further discussed later in the manual. Setting the Approximate Length using the Hot Menus 1) Press the MEAS key once to activate measure menu items. Press the MEAS key multiple times to move right and the ESC key multiple times to move left, until the ALEN cell is highlighted.
8) Finally, press the MEAS key to return to the measurement screen and begin measuring reference lengths. 3.6 Measuring Reference Lengths At this point, the BOLTSCOPE PRO is setup and ready to start measuring reference lengths. We’ve already setup a bolt group to store the reference length...
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BOLTSCOPE PRO - Bolt Tension Monitor data, and now need to display the group storage locations prior to making measurements. Storing a Reading 1) Press the MEAS key once to activate measure menu items. Press the MEAS key multiple times to move right and the ESC key multiple times to move left until the LOC cell is highlighted.
This will eliminate any potential sound path error caused by moving the transducer to a completely different location on the bolt, thus causing potentially erroneous measurements. Be consistent and as methodical in your methods as possible. This will help to avoid transducer placement errors.
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BOLTSCOPE PRO - Bolt Tension Monitor the bolt, thus causing potentially erroneous measurements. Be consistent and as methodical in your methods as possible. This will help to avoid transducer placement errors. 1) Press the UP, DOWN, LEFT, and RIGHT arrow keys to scroll the target cell cursor to the desired storage location.
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Chapter 4 Keyboard, Menu, & Connector Reference 4.1 Menu Key (Operation & Sub Menus ) The Menu key activates the primary menu structure containing 10 menu tab groups. These tab groups then contain sub menu items, or functions. The sub menu items have been organized in tab groups according to how closely they are related to the individual tab group names.
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BOLTSCOPE PRO - Bolt Tension Monitor Activating and Getting Around in the Menu Items Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right, and the ESC key multiple times to tab left until the desired tab group is highlighted and displaying the submenu items.
4.2 CAL – Menu Zero Mode: The BOLTSCOPE PRO is zeroed in much the same way that a mechanical micrometer is zeroed. There are three zero mode options available in the BOLTSCOPE PRO – FIXED, ONE POINT, and TWO POINT. Selecting the proper mode is dependent on the application requirements.
Load Factor: The conversion factor from elongation to Load. This value is typically determined by performing a field calibration and running a regression or vector using the BOLTSCOPE PRO or utility software. Alternatively, the load factor can be determined using the bolt calculator in the utility software.
Area: The cross sectional area of the fastener being measured. Used to convert load to stress. Set to zero if the user is not measuring the quantity in terms of stress. This sub menu item enables the user to edit the area at anytime. Refer to section 11.1 for further info.
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The approximate length gives the BOLTSCOPE PRO some idea of where to turn on the receiver and look for the detection, or end of the bolt. This sub menu item enables the user to edit the effective length at anytime.
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Default Setup: Loads a basic default setup. Use only as a last resort when the setups in the BOLTSCOPE PRO have been corrupted and a computer is not accessible to restore previously save setups. Refer to section 15.4 for further info.
4.11 XFER (transfer) – Menu Backup Setups: Enables the user the ability to backup the setups currently stored in the BOLTSCOPE PRO to a PC via RS232 port. Refer to the help section of the BOLTSCOPE PROview software for a complete electronic manual.
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Backup Grid: Enables the user the ability to backup groups currently stored in the BOLTSCOPE PRO to a PC via RS232 port. Refer the help section of the BOLTSCOPE PROview software for a complete electronic manual. Restore Grid: Enables the user the ability to restore groups currently saved on a PC to a BOLTSCOPE PRO via RS232 port.
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BOLTSCOPE PRO - Bolt Tension Monitor Press the MEAS key at any time to return to the primarily measurement mode. Press the MEAS key multiple times to tab right through the menu fields, and the ESC key multiple times to tab left through the menu fields, until the desired hot function is highlighted.
4.14 OK Key The primary function of the OK key is confirmation of a change or selection. Additionally, when the group data is being displayed, the OK key will allow the user to advance the cursor to a specific bolt number in the group.
4.20 Top & Bottom End Caps The top & bottom end panels are where all connections are made to the BOLTSCOPE PRO. The diagram above shows the layout and description of the connectors: Transducer Connector Refer to Diagram: The transducer connector, temperature sensor (option), and...
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Lemo connector. It is designed to connect directly from the BOLTSCOPE PRO to a standard AT serial port on a PC. The cable supplied with the BOLTSCOPE PRO is a Lemo to 9 pin serial cable. This RS-232 connector is also used to connect a 2 pin Lemo to 2 pin Lemo serial cable directly to our special shut-off box, used in conjunction with a pump.
While the concept is comparatively simple and ultrasonic measurement can produce astoundingly accurate results, the selection of the optimum bolt and transducer, and their coupling can be difficult. The BOLTSCOPE PRO minimizes these difficulties to the greatest extent possible: The variable width pulser system can send the maximum amount of energy to the ultrasonic transducer, allowing the broadest possible range of transducers for a given application.
The BOLTSCOPE PRO can measure time, elongation, load, stress, or %strain in bolts of virtually any material from 1 inch to 8 feet in length, depending on the BOLTSCOPE PRO version. By storing the reference waveform and displaying it for comparison while the elongation is being measured, the BOLTSCOPE PRO minimizes operator training.
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Larger diameter crystals have greater ability to send and receive energy, and less of the energy tends to spread laterally. The BOLTSCOPE PRO Bolt Tension Monitor strives to achieve this ideal balance: direct transmission of the strongest possible pulse, with the least amount of noise and distortion, down and back the center of the bolt to obtain the most accurate measurement.
6.2 Transducer contact requirements The goal is to transmit as much sonic energy as possible from the transducer into the bolt, and to send that energy, to the greatest extent possible, down and back the center of the bolt, as shown in Figure 1.
BOLTSCOPE PRO - Bolt Tension Monitor Bolt ends with recessed grademarks, as shown at left of Figure 3. Couplant can be used to fill recessed grademarks. Small indentations cause some loss of signal strength, but normal measurement is still possible. Large or numerous indentations cause the signal to be too weak for a reliable measurement.
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Figure 4 Rough reflective surface Figure 5 Non Parallel reflecting Surface Figure 6 Reflection in a bending bolt...
BOLTSCOPE PRO - Bolt Tension Monitor Chapter 7 Transducer Selection 7.1 Selecting the Transducer Transducer selection is a very import part of getting the best results from the BOLTSCOPE PRO. The frequency and diameter of transducer should be carefully selected using the following information: ...
BOLTSCOPE PRO and transducer. The time delay is called the delay factor or zero time offset. The BOLTSCOPE PRO is designed for use with two calibration bars having a known ultrasonic velocity and known length. Comparing their known physical length and measured ultrasonic length determines the system delay factor, or zero time offset.
However, this is not the case. The linearity of the unit and material type of the bolts are not calibrated following a zero procedure. This is a misnomer. The BOLTSCOPE PRO should be sent in for calibration by hydratight, or other authorized service representative, on a periodic basis to verify proper operation of the instrument.
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Creating a Group Name to Document Probe Zero Data Note: Select a name that references this group to Probe Zero Data. 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right, and the ESC key multiple times to tab left, until the DATA menu is highlighted and displaying the submenu items.
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BOLTSCOPE PRO - Bolt Tension Monitor 6) Use the UP, DOWN, LEFT, & RIGHT arrow keys to highlight the appropriate alpha characters. 7) Press the ENTER key to select a character and advance to the next field of the Group Name.
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Note: A group can contain up to 250 bolts. There must be at least 1 bolt in a group. If multiple bolts will be used to zero the BOLTSCOPE PRO, you will need to create multiple bolts in the group. In some cases the user will opt to use a bolt that is a representative bolt from each application, rather than just an arbitrary bolt.
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BOLTSCOPE PRO - Bolt Tension Monitor 1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until NUM BOLTS is highlighted. 2) Press the ENTER key to display the Digits Edit Box. 3) Press the UP and DOWN arrow keys to scroll the highlighted value.
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Selecting the Number of Readings Per Bolt Note: A bolt can have up to 51 possible measurements and 1 initial length (L-REF). There must be at least one reading per bolt. Since this group is being created to store probe Zero Data and verify your probe zero periodically, or before starting a new application, consider selecting all 51 measurements locations.
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“NOT ENOUGH MEMORY“ will be displayed. Press the OK or ESC key to return to the Group List Items menu. It may be necessary to free some memory in the BOLTSCOPE PRO at this time. Selecting the Starting Bolt Number Note: Depending on the application and layout of the project, the user won’t always want the starting bolt to be 1.
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5) Repeat steps 3 & 4 until the START BOLT NUM value is correctly displayed. 6) Press the OK key to save the START BOLT NUM and return to the Group List Items menu, or ESC to cancel entering the START BOLT NUM.
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BOLTSCOPE PRO - Bolt Tension Monitor 1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until INCR. DIR is highlighted. 2) Use the LEFT & RIGHT arrow keys to toggle the Increment direction NONE, NORTH, EAST, SOUTH, or WEST.
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4) Press the MEAS key to return to the measurement screen to begin measuring reference lengths. Now that a group has been created to store our probe zero data, the material type of the standard probe zero bolt must be selected.
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BOLTSCOPE PRO - Bolt Tension Monitor 4) Press the UP and DOWN arrow keys to scroll through the material list until the appropriate material is highlighted. 5) Press the ENTER key to display the confirmation screen. 6) Press the OK key to select the material and return to the menu screen, or ESC to cancel the material selection.
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4) Press the MENU key multiple times to tab right and the ESC key multiple times to tab left until the MATL menu is highlighted and displaying the submenu items. 5) Use the UP and DOWN arrow keys to scroll through the sub menu items until TYPE is highlighted.
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APROX LEN is highlighted. Note: This is the approximate physical length of the fastener or bolt. This tells the BOLTSCOPE PRO where to turn on the receiver and look for an echo. The area scanned will be +/- 5% from the approximate length.
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19) Repeat steps 16 & 17 until the APPROX LEN value is correctly displayed. 20) Press the OK key to set the Approximate Length and return to the menu screen, or ESC to cancel entering the Approximate Length. 21) Use the UP and DOWN arrow keys to scroll through the sub menu items until AUTO SET is highlighted.
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When should I use the Calc Zero feature versus adjusting the Temperature, and why? The only time the Calc Zero feature should be used is when a different BOLTSCOPE PRO, transducer, or transducer cable is being used, other than the...
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Performing a Probe Zero Calibration Note: User has selected this section because the BOLTSCOPE PRO, transducer, or transducer cable has changed. 1) Press the MENU key once to activate the menu items tab. Press the...
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BOLTSCOPE PRO - Bolt Tension Monitor 5) Press the ENTER key to display the One Point Zero Edit Box. 6) Use the UP and DOWN arrow keys to scroll through the One Point List Items until PHYSICAL LEN is highlighted.
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10) Repeat steps 8 & 9 until the PHYSICAL LEN value is correctly displayed. 11) Press the OK key to return to the One Point Zero List, or ESC to cancel entering the PHYSICAL LEN value. 12) Use the UP and DOWN arrow keys to scroll through the One Point Zero List Items until VELOCITY is highlighted.
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BOLTSCOPE PRO - Bolt Tension Monitor 19) Press the ENTER key to display the Digits Edit Box. Note: Enter the temperature coefficient value of the bolt that was documented in the previous section. Reminder: The value was written down and scribed on the side of the bolt. It is the temperature coefficient used for the probe zero bolt.
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25) Press the ENTER key and the length value currently being measured, will appear in the ULTRASONIC LEN field. 26) Use the UP and DOWN arrow keys to scroll through the One Point Zero List Items until CALC ZERO is highlighted.
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Adjusting the Temperature to Match the Zero Value Note: User has selected this section because the BOLTSCOPE PRO, transducer, or transducer cable has not changed and the zero value does not match.
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B – ZZ. As soon as the user has scrolled to blank cell, the BOLTSCOPE PRO will switch into elongation mode and use all the data from the probe zero bolt initially stored.
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14) Use the UP, DOWN, LEFT, or RIGHT arrow keys to scroll the TEMP value. 15) Continue to scroll the temp value until the elongation reads 0.0000. When the value is at 0.0000 the BOLTSCOPE PRO is officially zeroed and ready to store or document the zero data prior to making measurements.
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BOLTSCOPE PRO - Bolt Tension Monitor 2) Use the UP and DOWN arrow keys to scroll through the sub menu items until NEW is highlighted. 3) Press the ENTER key to display the New Group Edit Box. 4) Use the UP and DOWN arrow keys to scroll through the new Group List Items until NAME is highlighted.
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Creating a Group Note Note: Be sure to include a note that describes and references the Probe Zero data and calibration apparatus used ( 3” & 6” bars or Triple sided glass block). 1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until NOTE is highlighted.
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BOLTSCOPE PRO - Bolt Tension Monitor 5) Use the CLR key to backspace if necessary. 6) Repeat steps 3 - 5 until the Group Note is completed. 7) Press the OK key to save the Group Note and return to the Group List Items menu, or ESC to cancel entering the Group Note.
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6) Press the OK key to save the NUM BOLTS and return to the Group List Items menu, or ESC to cancel entering the NUM BOLTS. Selecting the Number of Readings Per Bolt Note: A bolt can have up to 51 possible measurements and 1 unloaded reference length (L-REF).
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“NOT ENOUGH MEMORY“ will be displayed. Press the OK or ESC key to return to the Group List Items menu. It may be necessary to free some memory in the BOLTSCOPE PRO at this time. Selecting the Starting Bolt Number Note: Depending on the application and layout of the project, the user won’t always want the starting bolt to be 1.
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1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until START BOLT NUM is highlighted. 2) Press the ENTER key to display the Digits Edit Box. 3) Press the UP and DOWN arrow keys to scroll the highlighted value.
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BOLTSCOPE PRO - Bolt Tension Monitor Selecting the Auto Increment Direction The Auto Increment feature gives the user the ability to specify which direction to advance the cursor after storing a reading. 1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until INCR.
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Saving the Group Once all the parameters are set, the user has the option of saving or canceling the new group. 1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until CREATE NEW GROUP? is highlighted.
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BOLTSCOPE PRO - Bolt Tension Monitor Measuring Calibration Standards – For the First Time 1) With the menu items still active from the previous section, press the MENU key multiple times to tab right and the ESC key multiple times to tab left until the CAL menu is highlighted and displaying the submenu items.
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Note: PHY LEN 1 is the actual physical length of the first calibration standard. If the glass block is being used, the 1” side should be used for PHY LEN 1. 7) Press the ENTER key to display the Digits Edit Box.
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Note: This should be set to 55 (99 metric) for the 3 & 6” bars supplied by hydratight. If the glass block is used, it should be set to 0. The reason for this is because glass has a very low temperature coefficient.
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Note: In order for the BOLTSCOPE PRO to display the correct measurement value during calibration, the material velocity and temperature coefficient must be set to the same values as in the calibration section. 32) Use the UP and DOWN arrow keys to scroll through the sub menu items until VELOCITY is highlighted.
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If the BOLTSCOPE PRO has been previously calibrated, open the calibration data saved in the BOLTSCOPE PRO and check the probe zero by simply measuring the bars in an empty location (columns B – ZZ) in the existing probe zero data group.
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APROX LEN is highlighted. Note: This is the approximate physical length of the cal standard currently being measured. This tells the BOLTSCOPE PRO where to turn on the receiver and look for an echo. The area scanned will be +/- 5% from the approximate length.
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This will help to eliminate any potential measurement errors caused by changing the sound path. Note: Once an echo is found and the BOLTSCOPE PRO is measuring the cal bar, the GAIN, as well as the POLARITY may need to be adjusted. The cal bars produce an extremely strong signal and often the gain should be set to the minimum 20dB depending on the diameter of the transducer.
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15) Use the UP and DOWN arrow keys to scroll through the sub menu items until MEASURE ZERO is highlighted. 16) Press the ENTER key to display the Two Point Zero list box. 17) Press the UP and DOWN arrow keys to scroll through the Two Point Zero list until ULTRASONIC 1 is highlighted –...
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BOLTSCOPE PRO - Bolt Tension Monitor 24) Press the OK key to confirm “overwrite settings”. 25) Press the ENTER key once again to open the TWO POINT ZERO list and evaluate the error. Evaluate the Error: Compare the difference between the physical and ultrasonic lengths.
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Note: A periodic check should be conducted to prior to starting a project, to confirm the zero is still accurate. If it’s determined the BOLTSCOPE PRO is out of spec, only minor adjustments to the temperature should be necessary.
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35) Repeat steps 33 & 34 for the 6” bar in location A2. Note: Repeat the steps an additional time for the extra point on the glass block. Note: The BOLTSCOPE PRO is now properly zeroed and ready for action. This next section demonstrates how to go back and verify if the probe zero value is still linear and “In Spec”...
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Verifying the Probe Zero at a Later Time 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right, and the ESC key multiple times to tab left, until the DATA menu is highlighted and displaying the submenu items.
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Probe Zero Cal Bars, the cursor should be located on a cal standard in column B. It’s also important to note that the L-REF stored in column A, also contains all the BOLTSCOPE PRO settings when the L-REF was initially measured. These settings will automatically be copied to all the columns B-ZZ, for each individual bolt.
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11) Assuming the elongation is “Out of Spec”, Press the MEAS key once to activate the measure menu items. Press the MEAS key multiple times to move right and the ESC key multiple times to move left, until the TEMP cell is highlighted.
The thermal expansion of the fastener and the ultrasonic change in velocity as a result of temperature are two separate effects. However, for the purpose of the BOLTSCOPE PRO, they are combined in a single factor known as the Temperature Coefficient (Tc). The sections that follow outline the procedures for selecting and using the temperature compensation mode with the accessory temperature sensor.
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2) Use the UP and DOWN arrow keys to scroll through the sub menu items until TEMP MODE is highlighted. 3) Use the LEFT and RIGHT arrow keys to scroll the temperature mode options. Once the MANUAL temperature mode is displayed, press the MEAS key to return to the measurement screen.
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BOLTSCOPE PRO - Bolt Tension Monitor adding a manual step to the procedures. The semi automatic mode answers requirements such as these. Selecting Semi Automatic Temperature Mode 1) Press the MENU key once to activate the menu items tab. Press the...
9.4 Automatic Mode The automatic mode constantly monitors and compensates for temperature when the accessory temperature sensor is attached to the BOLTSCOPE PRO and placed on the joint or fastener being measured. While this mode eliminates the need to manually insert or initiate a temperature measurement, it also requires...
BOLTSCOPE PRO - Bolt Tension Monitor Chapter 10 Bolt Material Calibration 10.1 Why do we need to calibrate The preset bolt types in the BOLTSCOPE PRO contain average factors for the material type. These are approximate values only. In a tightly controlled application where extreme accuracy is required, it is necessary to obtain all the information possible about the fasteners being measured.
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3) Press the LEFT & RIGHT arrow keys to scroll the quantity until ELONG is displayed. 4) Press the MENU key multiple times to tab right, and the ESC key multiple times to tab left, until the MATL menu is highlighted and displaying the submenu items.
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BOLTSCOPE PRO - Bolt Tension Monitor 10) Press the MENU key multiple times to tab right, and the ESC key multiple times to tab left, until the AUTO menu is highlighted and displaying the submenu items. 11) Use the UP and DOWN arrow keys to scroll through the sub menu items until APPROX LEN is highlighted.
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This will help to eliminate any potential measurement errors caused by changing the sound path. 19) Press the ENTER key and the Ultrasonic Length of the bolt will be displayed. Note: Alternatively, the Auto Set key can be pressed to activate the Auto Set routine.
Examples of such devices include the following Length measurement function of sophisticated tensile test machine Mechanical or electronic height gages Averaged values of length measurement with mechanical and electric micrometers. A hydratight BOLTSCOPE PRO Ultrasonic Bolt Tension Monitor.
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Sonic Stress Factor is to be determined. NOTES: The hydratight BOLTSCOPE PRO must be calibrated, or zeroed, as described in the Zero Calibration procedure section 8.4. The Velocity Calibration should be performed prior to determining the Stress Factor.
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BOLTSCOPE PRO - Bolt Tension Monitor Note: The following steps assume that the user has performed the steps in the previous section and calibrated the velocity. Therefore, the velocity has been adjusted, approximate length already entered, and the BOLTSCOPE PRO is currently setup and ready to measure in elongation mode.
SSF values divided by the total number of SSF values. Temperature factor calibration 10.4 The thermal expansion of the fastener and the ultrasonic velocity change with temperature are two separate effects. However, for the purpose of the BOLTSCOPE PRO they are combined into a single factor known as the...
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The BOLTSCOPE PRO always measures a fastener at 68 F. If the temperature of the fastener is currently being measured at 108 F, the BOLTSCOPE PRO will compensate, or correct, the measurement back to 68 F. Note: This is an arbitrary temperature range only.
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Determination of the Temperature Factor is accomplish by solving the equation: Where: = Ultrasonic Length at Beginning Temperature (T = Ultrasonic Length at Ending Temperature (T) = Beginning Temperature T = Ending Temperature Temperature Factor...
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BOLTSCOPE PRO - Bolt Tension Monitor 3) Record the ultrasonic length “L ” of the sample bolt at the above minimum temperature - 48 4) Repeat step 1 - 3 at the target temperatures (T through T ) – 48, 68,...
Diameter of the Bolt Load Factor Note: If no load factor has been entered the BOLTSCOPE PRO defaults to zero. The relationship between load and elongation is a function of the elasticity of the bolt material, and the geometry of the bolt in the application being measured.
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BOLTSCOPE PRO - Bolt Tension Monitor by 5%, the load measurement will also be off by 5% proportionally. For a cylindrical bolt with the same geometry, the area may be approximated as follows: D = minor diameter of the bolt, allowing for ...
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C L A M P L E N G T H 1 / 2 T H E D I A M E T E R 1 / 2 T H E D I A M E T E R...
A field calibration is accomplished using a tensile tester, load cell, or other calibrated load device to compare known loads against ultrasonic elongations. The BOLTSCOPE PRO is equipped with a self- calibrating feature that uses a linear regression or vector equation to produce a best-fit line through the known loads, minimizing error.
Vector Applied Load (Measured by Tensile Regression Machine) At low loads, vector can be more accurate Elongation (in time as measured by MiniMax) 11.3 Performing a Field Calibration This section outlines the necessary procedures to perform a field calibration to determine a Load Factor and Offset (in the case of using regression).
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BOLTSCOPE PRO - Bolt Tension Monitor Note: Select a name that references this group to Field Calibration Data. 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right, and the ESC key multiple times to tab left, until the DATA menu is highlighted and displaying the submenu items.
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6) Use the UP, DOWN, LEFT, & RIGHT arrow keys to highlight the appropriate alpha characters. 7) Press the ENTER key to select a character and advance to the next field of the Group Name. 8) Use the CLR key to backspace if necessary.
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BOLTSCOPE PRO - Bolt Tension Monitor 3) Use the UP, DOWN, LEFT, & RIGHT arrow keys to highlight the appropriate alpha characters. 4) Press the ENTER key to select a character and advance to the next field of the Group Note.
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1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until NUM BOLTS is highlighted. 2) Press the ENTER key to display the Digits Edit Box. 3) Press the UP and DOWN arrow keys to scroll the highlighted value.
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“NOT ENOUGH MEMORY“ will be displayed. Press the OK or ESC key to return to the Group List Items menu. It may be necessary to free some memory in the BOLTSCOPE PRO at this time. Selecting the Starting Bolt Number Note: Depending on the application and layout of the project, the user won’t always want the starting bolt to be 1.
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1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until START BOLT NUM is highlighted. 2) Press the ENTER key to display the Digits Edit Box. 3) Press the UP and DOWN arrow keys to scroll the highlighted value.
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BOLTSCOPE PRO - Bolt Tension Monitor Selecting the Auto Increment Direction The Auto Increment feature gives the user the ability to specify which direction to advance the cursor after storing a reading. 1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until INCR.
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Saving the Group Once all the parameters are set, the user has the option of saving or canceling the new group. 1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until CREATE NEW GROUP? is highlighted.
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BOLTSCOPE PRO - Bolt Tension Monitor Storing the Reference Length 1) Press the MEAS key once to activate measure menu items. Press the MEAS key multiple times to move right and the ESC key multiple times to move left until the LOC cell is highlighted.
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Note: The following steps assume that the user has previously selected a similar material type for the list of materials and the approximate length of the bolt has been entered. Therefore, the BOLTSCOPE PRO is currently setup and ready to measure in elongation mode.
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BOLTSCOPE PRO - Bolt Tension Monitor 4) Apply approximately 1/3 of the maximum load, which is to be placed on the bolt under actual working conditions. 5) Measure and record the Ultrasonic Length at Load 1 by pressing the ENTER key. The Digits Edit Box will be displayed.
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17) Measure and record the Ultrasonic Length at Load 3 by pressing the ENTER key. The Digits Edit Box will be displayed. Note: Load 3 should be stored in column D. 18) Enter the Known Load value by pressing the UP and DOWN arrow keys to scroll the highlighted value.
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BOLTSCOPE PRO - Bolt Tension Monitor 3) Press the ENTER key to run the calculation and display the confirmation screen. Note: The regression or vector coefficient will be displayed. The closer this number is to 1, the better the fit, or least amount of error.
Display 12.1 Quantities of Measurement The BOLTSCOPE PRO has the ability to measure in a number of measurement quantities: Time (nanoseconds), Elongation, Load, Stress, and Strain (in terms of %). While there are a number of quantity options available, the easiest and most fail safe quantities to consider are Time and Elongation.
L-REF (reference length). If tolerance values were setup in the BOLTSCOPE PRO, the user could use the limit bar and alarm lights to view when the fastener was in the required tolerance region, and avoid having to constantly watch the digital readout for a target value to appear.
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RECT (rectified) Large Digits Large Digits & Limits Bar Changing Display Options 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right, and the ESC key multiple times to...
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BOLTSCOPE PRO - Bolt Tension Monitor tab left, until the DISP menu is highlighted and displaying the submenu items. 2) Use the UP and DOWN arrow keys to scroll through the sub menu items until VIEW is highlighted. 3) Use the LEFT and RIGHT arrow keys to scroll the view options. Once the appropriate view is displayed, press the MEAS key to return to the measurement screen.
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A) Stability of Reading Indicator – Indicates the stability of the return echo on a scale of 1 to 6 – the solid bars displayed in the figure above indicate a repeatable signal. If the BOLTSCOPE PRO is displaying a reading from memory, the repeatability indicator will be replaced by the text “MEM”.
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A) Stability of Reading Indicator – Indicates the stability of the return echo on a scale of 1 to 6 – the solid bars displayed in the figure above indicate a repeatable signal. If the BOLTSCOPE PRO is displaying a reading from memory, the repeatability indicator will be replaced by the text “MEM”.
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E) Echo Signal – Graphical full waveform representation of the return echo displayed as an amplitude (vertical or “Y” axis) plotted against time (horizontal or “X” axis), this time is then converted to a physical measurement in terms of a specific quantity.
A) Stability of Reading Indicator – Indicates the stability of the return echo on a scale of 1 to 6 – the solid bars displayed in the figure above indicate a repeatable signal. If the BOLTSCOPE PRO is displaying a reading from memory, the repeatability indicator will be replaced by the text “MEM”.
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Adjusting the Width using the Hot Menus 1) Press the MEAS key once to activate measure menu items. Press the MEAS key multiple times to move right and the ESC key multiple times to move left, until the WIDTH cell is highlighted.
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BOLTSCOPE PRO - Bolt Tension Monitor Adjusting the Width using the Tabbed Menus 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right, and the ESC key multiple times to tab left, until the DISP menu is highlighted and displaying the submenu items.
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Starting delay The starting DELAY, or starting length, is the value displayed on the bottom lower left side of the display in both RF and RECT (Rectified) views. The DELAY will also be represented in the DIGITS (Scan Bar) view, as the length. The starting length is the minimum length that can be viewed on the display.
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BOLTSCOPE PRO - Bolt Tension Monitor Press the OK key to return to the measurement screen, or ESC to cancel entering the DELAY. The user can also access and adjust the delay from the tabbed menus. However, this method is more tedious than making the adjustments using the Hot Menus.
7) Repeat steps 5 & 6 until the Delay number is correctly displayed. 8) Press the OK key to set the Delay and return to the menu screen, or ESC to cancel entering the Delay. 9) Finally, press the MEAS key to return to the measurement screen.
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BOLTSCOPE PRO - Bolt Tension Monitor 1) Press the MEAS key once to activate measure menu items. Press the MEAS key multiple times to move right, and the ESC key multiple times to move left until the GAIN cell is highlighted.
1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right, and the ESC key multiple times to tab left, until the TUNE menu is highlighted and displaying the submenu items.
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BOLTSCOPE PRO - Bolt Tension Monitor later time to correct the peak jump, errors can be overlooked during the measurement process. Therefore, it’s always best to make these adjustments when initially measuring the reference lengths. The procedures to adjust the Threshold are outlined below: Adjusting the Threshold using the Hot Menus 1) Press the MEAS key once to activate measure menu items.
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The user can also access and adjust the Threshold from the tabbed menus. However, this method is more tedious than making the adjustments using the Hot Menus. The procedure using the tabbed menus is outlined below: Adjusting the Threshold using the Tabbed Menus 1) Press the MENU key once to activate the menu items tab.
Use of a gate allows the user to force the BOLTSCOPE PRO to use this signal for measurements.
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(C). Notice that without a gate activated, the BOLTSCOPE PRO is detecting on the noise (A) as shown at point (B). However, the true measurement should be taken at point (C). Given the...
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Let’s assume that (A) is the actual true reflection off the end of the bolt, and the BOLTSCOPE PRO is detecting on the echo at (B). However, the signal has a horrible first cycle and is relatively week.
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3) Alternatively, press the ENTER key to display the Digits Edit Box. 4) Press the UP and DOWN arrow keys to scroll the highlighted value. 5) Press the LEFT and RIGHT arrow keys to scroll the digit locations. 6) Repeat steps 4 & 5 until the GATE value is correctly displayed.
When a load is applied on a bolt, the velocity of the fastener decreases. Any deformations in the joint (bending) will disrupt the sound path and potentially cause an overall decrease in signal amplitude. When this occurs, the decrease in amplitude can cause the BOLTSCOPE PRO to lose the first cycle altogether.
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For this reason, selecting the proper phase is very important. The Auto Set feature built into the BOLTSCOPE PRO will do a lot of this work for you. However, it’s always a good idea to understand how to interpret the waveform.
Once again, the Auto Set feature built into the BOLTSCOPE PRO will attempt to optimize and select the polarity for you. Use of this feature is further explained in the sections that follow.
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Length is known, use the digits edit box to enter the value and save time. 1) Press the MEAS key once to activate measure menu items. Press the MEAS key multiple times to move right and the ESC key multiple times to move left, until the DELAY cell is highlighted.
WIDTH. 12.9 Automatic echo optimization The BOLTSCOPE PRO is equipped with a built in Auto Set feature for echo optimization. The Auto Set uses a variety of algorithms, evaluating the positive and negative and negative cycles, and selects the best phase (polarity) to use for measurement.
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Setting the Approximate Length using the Hot Menus 1) Press the MEAS key once to activate measure menu items. Press the MEAS key multiple times to move right and the ESC key multiple times to move left, until the ALEN cell is highlighted.
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BOLTSCOPE PRO - Bolt Tension Monitor Setting the Approximate Length using the Tabbed Menus 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right, and the ESC key multiple times to tab left, until the AUTO menu is highlighted and displaying the submenu items.
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Using Auto Set Note: If the Approximate length has been entered into the BOLTSCOPE PRO, the Auto Set feature can be run simply by pressing the AUTO SET key on the bottom left side of the keypad. 1) Press the MENU key once to activate the menu items tab. Press the...
BOLTSCOPE PRO - Bolt Tension Monitor 12.10 Unloaded length and Elongation measurements The entire procedure to effectively prepare, setup, and measure is located in the quick start guide in Chapter 3. Please refer to this section for further instructions.
Once the correct Pulse is displayed, press the MEAS key to return to measurement screen. 13.2 Alarm Mode The Alarm Mode feature of the BOLTSCOPE PRO provides the user with a method of setting tolerances, or limits, for a particular application requirement.
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LCD in terms of a bar graph presentation. There are two limits, or alarm values, that can be setup in the BOLTSCOPE PRO – ALARM LO LIMIT and ALARM HI LIMIT. However, the user may choose to activate and utilize only one of the limit values, depending on their specific application requirements.
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Use the LEFT and RIGHT arrow keys to toggle the ALARM STATUS on/off. Continue on to the next section “Setting the Alarm Lo Limit”. Setting the Alarm LO Limit 1) Assuming the ALARM STATUS is ON, use the UP and DOWN arrow keys to scroll through the sub menu items until ALARM LO LIMIT is highlighted.
BOLTSCOPE PRO - Bolt Tension Monitor Setting the Alarm HI Limit 1) Assuming the ALARM STATUS is ON, use the UP and DOWN arrow keys to scroll through the sub menu items until ALARM HI LIMIT is highlighted. 2) Press the LEFT and RIGHT arrow keys to scroll the value. When the correct alarm value is being displayed, proceed to step 8.
Toggle Polarity (+/-) Note: Before toggling the Polarity, the BOLTSCOPE PRO should be set to the RF display view option. The RF view will give the user the best opportunity to correctly view the positive and negative cycles of the waveform.
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BOLTSCOPE PRO - Bolt Tension Monitor Toggle Rect Wave (filled / Unfilled) Note: Before toggling the Rect Wave, the BOLTSCOPE PRO should be set to the RECT display view option. Please refer to section 12.2 for information on selecting the Display Views.
1 Unloaded length (L-REF), and 51 Elongations. Multiple groups can be created and stored until the BOLTSCOPE PRO’s memory is full. If the user attempts to store a grid in the BOLTSCOPE PRO when the memory is full, the BOLTSCOPE PRO will respond with an error message indicating that the memory is unable to store the new group.
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BOLTSCOPE PRO - Bolt Tension Monitor Creating a Group Name 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right, and the ESC key multiple times to tab left, until the DATA menu is highlighted and displaying the submenu items.
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6) Use the UP, DOWN, LEFT, & RIGHT arrow keys to highlight the appropriate alpha characters. 7) Press the ENTER key to select a character and advance to the next field of the Group Name. 8) Use the CLR key to backspace if necessary.
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BOLTSCOPE PRO - Bolt Tension Monitor 3) Use the UP, DOWN, LEFT, & RIGHT arrow keys to highlight the appropriate alpha characters. 4) Press the ENTER key to select a character and advance to the next field of the Group Note.
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1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until NUM BOLTS is highlighted. 2) Press the ENTER key to display the Digits Edit Box. 3) Press the UP and DOWN arrow keys to scroll the highlighted value.
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BOLTSCOPE PRO - Bolt Tension Monitor Selecting the Number of Readings Per Bolt Note: A bolt can have up to 51 possible measurements and 1 initial length (L-REF). There must be at least one reading per bolt. 1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until NUM READS is highlighted.
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“NOT ENOUGH MEMORY“ will be displayed. Press the OK or ESC key to return to the Group List Items menu. It may be necessary to free some memory in the BOLTSCOPE PRO at this time. Selecting the Starting Bolt Number Note: Depending on the application and layout of the project, the user won’t always want the starting bolt to be 1.
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BOLTSCOPE PRO - Bolt Tension Monitor 6) Press the OK key to save the START BOLT NUM and return to the Group List Items menu, or ESC to cancel entering the START BOLT NUM. Note: If a value is enter that is greater than the maximum number of bolts allowed per group (250), an error message box “VALUE IS OUT OF...
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2) Use the LEFT & RIGHT arrow keys to toggle the Increment direction NONE, NORTH, EAST, SOUTH, or WEST. 3) When the correct Increment direction is displayed, continue on to the next section “Saving the Group”.
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BOLTSCOPE PRO - Bolt Tension Monitor Saving the Group Once all the parameters are set, the user has the option of saving or canceling the new group. 1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until CREATE NEW GROUP? is highlighted.
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14.4 Viewing stored measurements and waveforms It is sometimes necessary to go back and view, or toggle, the stored readings and waveforms using the BOLTSCOPE PRO without a PC. The following procedures outline this process:...
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BOLTSCOPE PRO - Bolt Tension Monitor Viewing Stored Readings & Waveforms 1) Press the MEAS key once to activate measure menu items. Press the MEAS key multiple times to move right and the ESC key multiple times to move left until the LOC cell is highlighted.
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Note: Refer to section 12.2 Display View, to toggle the view options. 5) The user may opt to clear a specific reading and save a new one at any time. Press the CLR key in the appropriate cell location to clear the reading, take a new measurement, and press the OK key to save the new reading.
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BOLTSCOPE PRO - Bolt Tension Monitor 14.5 Deleting a group Deleting One or All Groups from Memory Deleting One Group 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right and the ESC key multiple times to tab left until the DATA menu is highlighted and displaying the submenu items.
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DATA menu is highlighted and displaying the submenu items. 2) Use the UP and DOWN arrow keys to scroll through the sub menu items until DELETE ALL GROUPS is highlighted. 3) Press the ENTER key to activate the confirmation screen.
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BOLTSCOPE PRO - Bolt Tension Monitor Editing a Group 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right and the ESC key multiple times to tab left until the DATA menu is highlighted and displaying the submenu items.
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5) Press the ENTER key to activate the Alpha Edit box – Only used when editing the NOTE. 6) Use the UP, DOWN, LEFT, & RIGHT arrow keys to highlight the appropriate alpha characters. 7) Press the ENTER key to select a character and advance to the next field of the Comments.
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The user may have transferred group templates from a PC to the BOLTSCOPE PRO, or setup groups using the BOLTSCOPE PRO at an earlier time. The name of the currently active group is always displayed at the bottom of the Hot Menu Items in measurement mode.
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6) Press the OK key to load the group from memory. 7) Press the MEAS key to return to the measure screen.
15.2 Opening a Setup The BOLTSCOPE PRO is loaded with a single Default setup from the factory. This setup, along with all the additional empty setups, can be opened, edited, and saved to any one of the 64 setup locations. If the factory setup is written over, the user can simply reload the default factory setup at anytime using the utility software included with the BOLTSCOPE PRO.
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Opening a Setup 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right and the ESC key multiple times to tab left until the SETUP menu is highlighted and displaying the submenu items.
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BOLTSCOPE PRO - Bolt Tension Monitor 15.3 Saving a Setup Once the BOLTSCOPE PRO parameters and features have been adjusted for an application, the user may elect to save these setting to a specific setup location for future use. This can potentially save time and reduce error between users.
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Saving the Setup 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right and the ESC key multiple times to tab left until the SETUP menu is highlighted and displaying the submenu items.
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Save Setup function can also be considered an Edit Function. 15.4 Using the Default Setup The default setup feature was added to the BOLTSCOPE PRO to use, as a last resort, if there are no setups stored in the gauge –factory or otherwise. The only...
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BOLTSCOPE PRO. This gives the user the ability to load and modify a basic setup as follows: Using the Default Setup 1) Press the MENU key once to activate the menu items tab. Press the...
16.3 Upgrading the Firmware The BOLTSCOPE PRO has the ability to be flash programmed from anywhere in the world. As new features, bugs, and additional software requests become available, hydratight offers the user the ability to upgrade the firmware without having to ship the unit back to the factory, or authorized service center.
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