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OPERATION MANUAL ELECTROMATIC Equip'tMMIINNII--MMAAXX BOLT TENSION MONITOR P/N P-156-0002 Rev1.1, September 2005®BY ELECTROMA

Dakota Ultrasonics 4 Selecting the Quick Start Setup 1) Press the ON/OFF key to power up the MINI-MAX. 2) Press the MENU key once to activate the m

Dakota Ultrasonics 94 Determination of the Temperature Factor is accomplish by solving the equation: Where: 60010)()(×−−=TTLLLTTTp Temperatur

MINI-MAX Ultrasonic Bolt Tension Monitor 3) Record the ultrasonic length “L0” of the sample bolt at the above minimum temperature - 480 F. 4) Rep

Dakota Ultrasonics 96 Chapter 11 Load Measurement 11.1 Calculating a load factor The load factor is an empirically determined value for the geometry

MINI-MAX Ultrasonic Bolt Tension Monitor load measurement will also be off by 5% proportionally. For a cylindrical bolt with the same geometry, th

Dakota Ultrasonics 98 CLAMP LENGTHEFFECTIVE LENGTH1/2 THE DIAMETER 1/2 THE DIAMETER CLAMP LENGTHEFFECTIVE LENGTH1/2 THE DIAMETER 1/3 THE DIAMETER CLAM

MINI-MAX Ultrasonic Bolt Tension Monitor XLEDCL += Effective Length CL = Clamp length DX = Additional diameter added for head, nut(s), and or bli

Dakota Ultrasonics 100 AppliedLoad(Measuredby TensileMachine)Elongation (in time as measured by MiniMax)At low loads, vectorcan be more accurateVector

MINI-MAX Ultrasonic Bolt Tension Monitor Note: Select a name that references this group to Field Calibration Data. 1) Press the MENU key once to

Dakota Ultrasonics 102 6) Use the UP, DOWN, LEFT, & RIGHT arrow keys to highlight the appropriate alpha characters. 7) Press the ENTER key to s

MINI-MAX Ultrasonic Bolt Tension Monitor Note: Be sure to include a note that describes and references the Field Calibration data and bolt. 1) Us

MINI-MAX Ultrasonic Bolt Tension Monitor Selecting the Units Note: The Quick Start setup, selected in the previous section, automatically default

Dakota Ultrasonics 104 1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until NUM BOLTS is highlighted. 2) Press the EN

MINI-MAX Ultrasonic Bolt Tension Monitor 1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until NUM READS is highlight

Dakota Ultrasonics 106 Selecting the Auto Increment Direction The Auto Increment feature gives the user the ability to specify which direction to adv

MINI-MAX Ultrasonic Bolt Tension Monitor Saving the Group Once all the parameters are set, the user has the option of saving or canceling the new

Dakota Ultrasonics 108 Storing the Reference Length 7) Press the MEAS key once to activate measure menu items. Press the MEAS key multiple times to

MINI-MAX Ultrasonic Bolt Tension Monitor 2) Use the UP and DOWN arrow keys to scroll through the sub menu items until LOAD CAL MODE is highlighted

Dakota Ultrasonics 110 4) Apply approximately 1/3 of the maximum load, which is to be placed on the bolt under actual working conditions. 5) Measure

MINI-MAX Ultrasonic Bolt Tension Monitor 17) Measure and record the Ultrasonic Length at Load 3 by pressing the ENTER key. The Digits Edit Box wi

Dakota Ultrasonics 112 3) Press the ENTER key to run the calculation and display the confirmation screen. 4) Press the OK key to accept the calcula

MINI-MAX Ultrasonic Bolt Tension Monitor Chapter 12 Measurement and the Waveform Display 12.1 Quantities of Measurement The MINI-MAX has the abi

Dakota Ultrasonics 6 This section allows the user the ability to select a material from a list of preset material types. Keep in mind that we are mea

Dakota Ultrasonics 114 =APS Stress S = Stress P = Load A = Cross sectional error 100∗=EENLXS %Strain SN = %Strain XE = Elongation LE =

MINI-MAX Ultrasonic Bolt Tension Monitor RF RECT (rectified) Large Digits Large Digits & Limits Bar Changing Display Options 1) Press t

Dakota Ultrasonics 116 tab left, until the DISP menu is highlighted and displaying the submenu items. 2) Use the UP and DOWN arrow keys to scroll thr

MINI-MAX Ultrasonic Bolt Tension Monitor A) Stability of Reading Indicator – Indicates the stability of the return echo on a scale of 1 to 6 – th

Dakota Ultrasonics 118 Rectified View Rectified The rectified A-Scan mode shows half of the waveform. Either the positive or negative peaks are dis

MINI-MAX Ultrasonic Bolt Tension Monitor E) Echo Signal – Graphical full wave form representation of the return echo displayed as an amplitude (v

Dakota Ultrasonics 120 The following is a list of the viewable features on the display: A) Stability of Reading Indicator – Indicates the stability

MINI-MAX Ultrasonic Bolt Tension Monitor Adjusting the Width using the Hot Menus 1) Press the MEAS key once to activate measure menu items. Pres

Dakota Ultrasonics 122 Adjusting the Width using the Tabbed Menus 1) Press the MENU key once to activate the menu items tab. Press the MENU key mu

MINI-MAX Ultrasonic Bolt Tension Monitor Starting delay The starting DELAY, or starting length, is the value displayed on the bottom lower left si

MINI-MAX Ultrasonic Bolt Tension Monitor Creating a Group Name 1) Press the MENU key once to activate the menu items tab. Press the MENU key mul

Dakota Ultrasonics 124 7) Press the OK key to return to the measurement screen, or ESC to cancel entering the DELAY. The user can also access and adj

MINI-MAX Ultrasonic Bolt Tension Monitor 7) Repeat steps 5 & 6 until the Delay number is correctly displayed. 8) Press the OK key to set the

Dakota Ultrasonics 126 1) Press the MEAS key once to activate measure menu items. Press the MEAS key multiple times to move right, and the ESC key m

MINI-MAX Ultrasonic Bolt Tension Monitor 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab rig

Dakota Ultrasonics 128 user does not increase it at that time, when the fastener is put under a load, the same peak jumps can occur. Even though the

MINI-MAX Ultrasonic Bolt Tension Monitor The user can also access and adjust the Threshold from the tabbed menus. However, this method is more t

Dakota Ultrasonics 130 8) Press the OK key to set the Threshold and return to the menu screen, or ESC to cancel entering the Threshold. 9) Finally

MINI-MAX Ultrasonic Bolt Tension Monitor SURFACE NOISE PROBLEM NO GATE W/GATE The diagrams above can be illustrate a typic

Dakota Ultrasonics 132 If the threshold level were increased in the NO GATE diagram, so that the level was higher than the amplitude of the noise (A

MINI-MAX Ultrasonic Bolt Tension Monitor 3) Alternatively, press the ENTER key to display the Digits Edit Box. 4) Press the UP and DOWN arrow k

Dakota Ultrasonics 8 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 t

Dakota Ultrasonics 134 2) Use the UP and DOWN arrow keys to scroll through the sub menu items until GATE is highlighted. 3) Press the LEFT and RIG

MINI-MAX Ultrasonic Bolt Tension Monitor cycle is lost, the MINI-MAX will “peak Jump” to another cycle later in time with greater amplitude. Often

Dakota Ultrasonics 136 Good Rule of Thumb: Always look at the height of the positive and negative cycles separately. Ask yourself if the first cycle

MINI-MAX Ultrasonic Bolt Tension Monitor the Length is known, use the digits edit box to enter the value and save time. 1) Press the MEAS key once

Dakota Ultrasonics 138 1) Press the MEAS key once to activate measure menu items. Press the MEAS key multiple times to move right and the ESC key mu

MINI-MAX Ultrasonic Bolt Tension Monitor Setting the Approximate Length using the Hot Menus 1) Press the MEAS key once to activate measure menu i

Dakota Ultrasonics 140 Setting the Approximate Length using the Tabbed Menus 1) Press the MENU key once to activate the menu items tab. Press the M

MINI-MAX Ultrasonic Bolt Tension Monitor Using Auto Set Note: If the Approximate length has been entered into the MINI-MAX, the Auto Set feature

Dakota Ultrasonics 142 12.10 Unloaded length and Elongation measurements The entire procedure to effectively prepare, setup, and measure is located i

MINI-MAX Ultrasonic Bolt Tension Monitor Chapter 13 Additional Features 13.1 Pulse Width The MINI-MAX is equipped with an adjustable pulse width

MINI-MAX Ultrasonic Bolt Tension Monitor 4) Press the ENTER key to select a character and advance to the next field of the Group Note. 5) Use the

Dakota Ultrasonics 144 13.2 Alarm Mode The Alarm Mode feature of the MINI-MAX provides the user with a method of setting tolerances, or limits, for

MINI-MAX Ultrasonic Bolt Tension Monitor tab left, until the UTIL menu is highlighted and displaying the submenu items. 2) Use the UP and DOWN arro

Dakota Ultrasonics 146 7) If only one limit will be used, press the MEAS key to return to the measurement screen and begin taking readings. Otherwise

MINI-MAX Ultrasonic Bolt Tension Monitor Setting the Alarm HI Limit 1) Assuming the ALARM STATUS is ON, use the UP and DOWN arrow keys to scroll

Dakota Ultrasonics 148 Toggle Polarity (+/-) Note: Before toggling the Polarity, the MINI-MAX should be set to the RF display view option. The RF v

MINI-MAX Ultrasonic Bolt Tension Monitor Toggle Rect Wave (filled / Unfilled) Note: Before toggling the Rect Wave, the MINI-MAX should be set to

Dakota Ultrasonics 150 Chapter 14 Data Storage – Setup, Edit, & View Groups 14.1 Introduction to Group (spreadsheet) format Data is stored in

MINI-MAX Ultrasonic Bolt Tension Monitor Creating a Group Name 1) Press the MENU key once to activate the menu items tab. Press the MENU key mul

Dakota Ultrasonics 152 6) Use the UP, DOWN, LEFT, & RIGHT arrow keys to highlight the appropriate alpha characters. 7) Press the ENTER key to se

MINI-MAX Ultrasonic Bolt Tension Monitor 3) Use the UP, DOWN, LEFT, & RIGHT arrow keys to highlight the appropriate alpha characters. 4) Pre

Dakota Ultrasonics 10 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. Not

Dakota Ultrasonics 154 1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until NUM BOLTS is highlighted. 2) Press the EN

MINI-MAX Ultrasonic Bolt Tension Monitor Selecting the Number of Readings Per Bolt Note: A bolt can have up to 51 possible measurements and 1 init

Dakota Ultrasonics 156 If there’s not enough memory available to create the group, an error message box “NOT ENOUGH MEMORY“ will be displayed. Press

MINI-MAX Ultrasonic Bolt Tension Monitor Saving the Group Once all the parameters are set, the user has the option of saving or canceling the new g

Dakota Ultrasonics 158 Storing a Measurement 1) Press the MEAS key once to activate measure menu items. Press the MEAS key multiple times to move r

MINI-MAX Ultrasonic Bolt Tension Monitor Viewing Stored Readings & Waveforms 1) Press the MEAS key once to activate measure menu items. Pres

Dakota Ultrasonics 160 Note: Refer to section 12.2 Display View, to toggle the view options. 5) The user may opt to clear a specific rea

MINI-MAX Ultrasonic Bolt Tension Monitor 14.5 Deleting a group Deleting One or All Groups from Memory Deleting One Group 1) Press the MENU key

Dakota Ultrasonics 162 tab left until the DATA menu is highlighted and displaying the submenu items. 2) Use the UP and DOWN arrow keys to scroll thro

MINI-MAX Ultrasonic Bolt Tension Monitor Editing a Group 1) Press the MENU key once to activate the menu items tab. Press the MENU key multip

MINI-MAX Ultrasonic Bolt Tension Monitor 5) Repeat steps 3 & 4 until the NUM READS value is correctly displayed. 6) Press the OK key to save

Dakota Ultrasonics 164 5) Press the ENTER key to activate the Alpha Edit box – Only used when editing the NOTE. 6) Use the UP, DOWN, LEFT, & RI

MINI-MAX Ultrasonic Bolt Tension Monitor 11) Press the OK to save the changes or the ESC key to cancel editing the group parameters. 12) Press th

Dakota Ultrasonics 166 6) Press the OK key to load the group from memory. 7) Press the MEAS key to return to the measure screen.

MINI-MAX Ultrasonic Bolt Tension Monitor Chapter 15 Setups – Create, Store, Edit, & Recall 15.1 Introduction to Setups Often times, users are

Dakota Ultrasonics 168 Opening a Setup 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right a

MINI-MAX Ultrasonic Bolt Tension Monitor 15.3 Saving a Setup Once the MINI-MAX parameters and features have been adjusted for an application, the

Dakota Ultrasonics 170 Saving the Setup 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab right

MINI-MAX Ultrasonic Bolt Tension Monitor 8) If both parameters will be edited, repeat steps 4 – 7 . 9) Use the UP and DOWN arrow keys to scroll t

Dakota Ultrasonics 172 back into the MINI-MAX. This gives the user the ability to load and modify a basic setup as follows: Using the Default Setup

MINI-MAX Ultrasonic Bolt Tension Monitor

Dakota Ultrasonics 12 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

Dakota Ultrasonics 174 Chapter 16 Using the Utility Software 16.1 Computer System Requirements MINIMAXview will run on many different operating syst

ELECTROMATIC Equipment Co., Inc., 600 Oakland Ave., Cedarhurst, NY 11516 – USATel: 800-645-4330 (USA & Canada) Tel: (516) 295-4300 Fax: (516

MINI-MAX Ultrasonic Bolt Tension Monitor Saving the Group Once all the parameters are set, the user has the option of saving or canceling the new

Dakota Ultrasonics 14 in both directions of the approximate length for the detection signal. The approximate length is a very valuable feature that

MINI-MAX Ultrasonic Bolt Tension Monitor 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times to tab rig

Dakota Ultrasonics 16 3.6 Measuring Reference Lengths At this point, the MINI-MAX is setup and ready to start measuring reference lengths. We’ve al

MINI-MAX Ultrasonic Bolt Tension Monitor Important Note: Always be sure to attach the transducer in the same exact location if it will be removed i

Dakota Ultrasonics 18 error caused by moving the transducer to a completely different location on the bolt, thus causing potentially erroneous measure

MINI-MAX Ultrasonic Bolt Tension Monitor Chapter 4 Keyboard, Menu, & Connector Reference 4.1 Menu Key (Operation & Sub Menus )

Dakota Ultrasonics 20 Activating and Getting Around in the Menu Items 1) Press the MENU key once to activate the menu items tab. Press the MENU key

MINI-MAX Ultrasonic Bolt Tension Monitor 4.2 CAL – Menu Zero Mode: The MINI-MAX is zeroed in much the same way that a mechanical micrometer is

Dakota Ultrasonics 22 Type: Select the bolt material type from a preset list of material types. Each type contains a velocity, stress factor, and te

MINI-MAX Ultrasonic Bolt Tension Monitor Area: The cross sectional area of the fastener being measured. Used to convert load to stress. Set to z

CHAPTER 1 WARRANTY AND SAFETY... 1 1.1 WARRANTY ...

Dakota Ultrasonics 24 Gain: Increases or decreases the overall amplitude of the signal. Much like turning the volume up or down on a stereo receiver

MINI-MAX Ultrasonic Bolt Tension Monitor 4.8 SETUP – Menu Open: Displays a list of factory and user defined setups currently stored in memory

Dakota Ultrasonics 26 Delete All Groups: This function provides the user with the ability to delete all groups currently stored in memory. Refer to s

MINI-MAX Ultrasonic Bolt Tension Monitor Backup Grid: Enables the user the ability to backup groups currently stored in the MINI-MAX to a PC via R

Dakota Ultrasonics 28 2) Press the MEAS key multiple times to tab right through the menu fields, and the ESC key multiple times to tab left through th

MINI-MAX Ultrasonic Bolt Tension Monitor 4.14 OK Key The primary function of the OK key is confirmation of a change or selection. Additionall

Dakota Ultrasonics 30 4.19 ON/OFF Key The ON/OFF key simply powers the unit either ON or OFF. Note: Unit will automatically power off when i

MINI-MAX Ultrasonic Bolt Tension Monitor RS-232 Connector Refer to Diagram: The RS-232 connector, located on the bottom end cap, is a 2 pin female

Dakota Ultrasonics 32 Chapter 5 Theory of Operation 5.1 Ultrasonic Measurement of Bolts Note: The terms bolt, fastener, and threaded fastener are us

MINI-MAX Ultrasonic Bolt Tension Monitor 5.2 Features of the MINI-MAX The Dakota Ultrasonics MINI-MAX, Ultrasonic Bolt Tension Monitor, defines t

6.2 TRANSDUCER CONTACT REQUIREMENTS ... 35 6.3 BOLT END REFLECTORS...

Dakota Ultrasonics 34 Chapter 6 Bolt Preparation The best balance between maximum frequency and noise suppression requires selecting the best transdu

MINI-MAX Ultrasonic Bolt Tension Monitor 6.2 Transducer contact requirements The goal is to transmit as much sonic energy as possible from the tra

Dakota Ultrasonics 36 • Bolt ends with recessed grademarks, as shown at left of Figure 3. Couplant can be used to fill recessed grademarks. Small i

MINI-MAX Ultrasonic Bolt Tension Monitor Figure 4 Rough reflective surface Figure 5 Non Parallel reflecting Surface Figure 6 Reflection in a ben

Dakota Ultrasonics 38 Chapter 7 Transducer Selection 7.1 Selecting the Transducer Transducer selection is a very import part of getting the best res

MINI-MAX Ultrasonic Bolt Tension Monitor Chapter 8 Measuring System Zero (calibration) 8.1 Introduction System zeroing is the method of calculati

Dakota Ultrasonics 40 8.2 Calibration / Zero misnomer In the past there have been instances where users were under the impression that zeroing the un

MINI-MAX Ultrasonic Bolt Tension Monitor Creating a Group Name to Document Probe Zero Data Note: Select a name that references this group to Prob

Dakota Ultrasonics 42 6) Use the UP, DOWN, LEFT, & RIGHT arrow keys to highlight the appropriate alpha characters. 7) Press the ENTER key to sel

MINI-MAX Ultrasonic Bolt Tension Monitor 3) Use the UP, DOWN, LEFT, & RIGHT arrow keys to highlight the appropriate alpha characters. 4) Pre

14.1 INTRODUCTION TO GROUP (SPREADSHEET) FORMAT...150 14.2 CREATING A NEW GROUP ...

Dakota Ultrasonics 44 1) Use the UP and DOWN arrow keys to scroll through the new Group List Items until NUM BOLTS is highlighted. 2) Press the ENT

MINI-MAX Ultrasonic Bolt Tension Monitor Selecting the Number of Readings Per Bolt Note: A bolt can have up to 51 possible measurements and 1 init

Dakota Ultrasonics 46 8) Press the OK key to save the NUM READS and return to the Group List Items menu, or ESC to cancel entering the NUM READS. If

MINI-MAX Ultrasonic Bolt Tension Monitor Saving the Group Once all the parameters are set, the user has the option of saving or canceling the new

Dakota Ultrasonics 48 Selecting the Bolt Material Type 1) Press the MENU key once to activate the menu items tab. Press the MENU key multiple times

MINI-MAX Ultrasonic Bolt Tension Monitor Now that a bolt group has been created and material type selected to save and document the probe zero data

Dakota Ultrasonics 50 5) Use the UP and DOWN arrow keys to scroll through the sub menu items until TYPE is highlighted. 6) Press the ENTER key t

MINI-MAX Ultrasonic Bolt Tension Monitor 12) Use the UP and DOWN arrow keys to scroll through the sub menu items until QUANTITY is highlighted. 13

Dakota Ultrasonics 52 20) Press the OK key to set the Approximate Length and return to the menu screen, or ESC to cancel entering the Approximate Len

MINI-MAX Ultrasonic Bolt Tension Monitor 1) Press the MEAS key once to activate measure menu items. Press the MEAS key multiple times to move ri

Dakota Ultrasonics 54 original. If the hardware has not changed, the user should not use this feature. If the hardware has not changed, only the tem

MINI-MAX Ultrasonic 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 scr

Dakota Ultrasonics 56 10) Repeat steps 8 & 9 until the PHYSICAL LEN value is correctly displayed. 11) Press the OK key to return to the One Poin

MINI-MAX Ultrasonic Bolt Tension Monitor 19) Press the ENTER key to display the Digits Edit Box. Note: Enter the temperature coefficient value o

Dakota Ultrasonics 58 25) Press the ENTER key and the length value currently being measured, will appear in the ULTRASONIC LEN field. 26) Use the U

MINI-MAX Ultrasonic Bolt Tension Monitor should not be changed, but the temperature value should be. Therefore the bolt becomes sort of temperatur

Dakota Ultrasonics 60 4) Use the UP and DOWN arrow keys to scroll through the groups until the target group is highlighted. 5) Press the ENTER key t

MINI-MAX Ultrasonic Bolt Tension Monitor 13) Press the MEAS key once to activate measure menu items. Press the MEAS key multiple times to move ri

Dakota Ultrasonics 62 8.4 Calibration / Zero bars & Triple Sided Glass Block Historically a set of 3” & 6” mild steel calibration bars, or a

MINI-MAX Ultrasonic Bolt Tension Monitor 2) Use the UP and DOWN arrow keys to scroll through the sub menu items until NEW is highlighted. 3) Pr

MINI-MAX Ultrasonic Bolt Tension Monitor Chapter 1 Warranty and Safety 1.1 Warranty The Dakota Ultrasonics MINI-MAX carries a two year limited w

Dakota Ultrasonics 64 Note: Be sure to include a note that describes and references the Probe Zero data and bolt. 1) Use the UP and DOWN arrow keys

MINI-MAX Ultrasonic Bolt Tension Monitor 7) Press the OK key to save the Group Note and return to the Group List Items menu, or ESC to cancel ente

Dakota Ultrasonics 66 Selecting the Number of Readings Per Bolt Note: A bolt can have up to 51 possible measurements and 1 unloaded reference length

MINI-MAX Ultrasonic Bolt Tension Monitor 7) Press the OK key to display the Digits Edit Box and re-enter the NUM READS. 8) Press the OK key to sa

Dakota Ultrasonics 68 Selecting the Auto Increment Direction The Auto Increment feature gives the user the ability to specify which direction to adva

MINI-MAX Ultrasonic Bolt Tension Monitor Saving the Group Once all the parameters are set, the user has the option of saving or canceling the new

Dakota Ultrasonics 70 1) With the menu items still active from the previous section, press the MENU key multiple times to tab right and the ESC key

MINI-MAX Ultrasonic Bolt Tension Monitor 9) Press the LEFT and RIGHT arrow keys to scroll the digit locations. 10) Repeat steps 8 & 9 until t

Dakota Ultrasonics 72 24) Press the UP and DOWN arrow keys to scroll through the Two Point Zero list until TEMP COEF is highlighted. Note: This refe

MINI-MAX Ultrasonic Bolt Tension Monitor 2) Use the UP and DOWN arrow keys to scroll through the sub menu items until QUANTITY is highlighted. 3)

Dakota Ultrasonics 2 Chapter 2 About this manual This chapter is intended to help you make the best use of this manual. Readers may have different k

Dakota Ultrasonics 74 11) Use the UP and DOWN arrow keys to scroll through the sub menu items until AUTO SET is highlighted. Note: Alternatively, th

MINI-MAX Ultrasonic Bolt Tension Monitor Note: Once the length is inserted in the ULTRASONIC 1 field , it also needs to be documented or stored in

Dakota Ultrasonics 76 in this example, the cal bars are being measured for the very first time. Therefore, all the readings are currently being store

MINI-MAX Ultrasonic Bolt Tension Monitor value should be very small. Therefore, if the zero is re-calculated and the delta is very large, somethin

Dakota Ultrasonics 78 4) Use the UP and DOWN arrow keys to scroll through the list menu items until the group name containing the probe zero data is

MINI-MAX Ultrasonic Bolt Tension Monitor 13) Press the MENU key multiple times to tab right and the ESC key multiple times to tab left until the A

Dakota Ultrasonics 80 Note: Since this is the 1st verification following the initial measurement of the Probe Zero Cal Bars, the cursor should be loc

MINI-MAX Ultrasonic Bolt Tension Monitor Chapter 9 Temperature Compensation 9.1 Purpose The temperature of a fastener effects the overall physica

Dakota Ultrasonics 82 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 RIG

MINI-MAX Ultrasonic Bolt Tension Monitor adding a manual step to the procedures. The semi automatic mode answers requirements such as these. Sel

MINI-MAX Ultrasonic Bolt Tension Monitor Chapter 3 Quick Start Guide 3.1 Overview This section demonstrates the basic procedures for setting up a

Dakota Ultrasonics 84 9.4 Automatic Mode The automatic mode constantly monitors and compensates for temperature when the accessory temperature sensor

MINI-MAX Ultrasonic Bolt Tension Monitor Chapter 10 Bolt Material Calibration 10.1 Why do we need to calibrate The preset bolt types in the MINI-

Dakota Ultrasonics 86 3) Press the LEFT & RIGHT arrow keys to scroll the quantity until ELONG is displayed. 3) Press the MENU key multiple times

MINI-MAX Ultrasonic Bolt Tension Monitor 7) Press the MENU key multiple times to tab right, and the ESC key multiple times to tab left, until the

Dakota Ultrasonics 88 transducer in the same location. This will help to eliminate any potential measurement errors caused by changing the sound path

MINI-MAX Ultrasonic Bolt Tension Monitor 25) Finally, press the MEAS key to return to the measurement screen. The ultrasonic length displayed sh

Dakota Ultrasonics 90 • A minimum of three sample bolts which are representative of the bolt type and geometry for which the Sonic Stress Factor is t

MINI-MAX Ultrasonic Bolt Tension Monitor Note: The following steps assume that the user has performed the steps in the previous section and calibr

Dakota Ultrasonics 92 8) Apply a drop of couplant to the bolt or transducer, and attach it to one end of the bolt. Rotate the transducer clockwise a

MINI-MAX Ultrasonic Bolt Tension Monitor The important thing to note is that both the thermal expansion and the velocity are changing with respect