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TESTLOOP™-C User Manual

1. 77 2 40 6 1 Productand Procedure Association 41 6 2 Adapting a Procedure fora Product 41 6 3 The Performing Test Window 42 6 4 Discovering the Machine User Interface 45 6 5 Starting a test 77 48 6 6 EndofTest 51 Displaying testresults 52 71 Results through the page of products 52 7 2 Reports 53 Page 3 of 3 TESTLOOP Your Personal Lab Assistant Introduction The TESTLOOP C Control software is a powerful tool to be used with your new LAB INTEGRATION INC LM machine from or other machines supported by it It offers an array of features not usually found in such an affordable software package Some of its main characteristics are Simple operati
2. MSDE This is the Microsoft SQL Server Desktop Engine If your computer already has an SQL server installed this step might be skipped Microsoftnet framework Most modern applications use the common net framework Distributed freely by Microsoft it might already be on your computer TESTLOOP All files and databases will be installed under C Program Files TESTLOOPV2 TESTLOOP along with a few drivers TESTLOOP C Structure TESTLOOP C is a modern and dynamic database that stores your test procedures and test results Most databases are pre defined and static platforms in which data is added TESTLOOP C creates tables dynamically based only on what the user needs avoiding cluttered and oversized files Tables are also modified dynamically should the parameters change The structure for TESTLOOP C is SQL Server based This structure allows for solid and reliable performance quick data manipulation with the help of Stored Procedures and is ideal for data connectivity with other data collecting system Today s trend is to have systems that communicate with each other therefore TESTLOOP C completely fits in and is ready to participate TESTLOOP E can bring this communication to a higher level by being the central database itself The whole idea behind a testing software is to perform tests and to present results to the user in an organized fashion that is what originated Your Personal Lab Assista
3. Trigger Units M o Reaction Activate next check Return end of test Bit or Sequence Number Here is an explanation of the various fields Order reference This is the ID of the check The simple way is to number them 1 2 3 although the change in order won t affect anything since ALL of the check points are being monitored together Page 26 of 26 TESTLOOP Your Personal Lab Assistant Detection channel All available channels in your testing system configuration will be displayed in this list Here is an example with the LM60 machine Rupture and Events Order Reference Detection Channel Trigger Type LMB0 Position i Trigger Value LMBO Force Trigger Units LM60 Deformation Reaction LM60 Time Bit or Sequence Number LMBO Command LMEO SpeedP LMEBO SpeedF Add automatic rupture dete MEO Strain LMBO0 Stress Trigger type There are 8 types of trigger Becomes greater When the value of the specified channel becomes greater in absolute value than the trigger value Becomes smaller When the value of the specified channel becomes smaller in absolute value than the trigger value Bit Off If your machine and or data acquisition system is equipped with I Os you can detect when a bit or a group of bit changes This detection is for when the bit goes from On or a floating condition to Off Bit On If your machine and or data acquisition system is equipped with I Os you can det
4. 3 Z 3 A T a a cr om a os Moment ELMED z bss Position oo Force Time Strain i j Kone Stress Minin EL LMEO Position 1O ak 1 K Page 30 of 30 TESTLOOP Your Personal Lab Assistant Here Is the list of available points and their meaning Maximum It refers to the maximum force attained during the test The Stress channel of the machine at the maximum force becomes the Ultimate Tensile Strength or Maximum Stress The position would be at the maximum force it would not be the maximum position Minimum Again it refers to the minimum force during a test Although this does not sound practical as one would think the minimum to be 0 it is very useful for those who make insertion extraction test The insertion force would be the maximum while the extraction force would be the minimum Upper Yield For material exhibiting a yield in this form all channels value at that moment can be returned Lower Yield For material exhibiting a lower yield all channels value at that moment can be returned Offset Yield P The P in this offset yield evaluation indicates that the yield was determined using the position channel of the machine rather than a deformation gauge It is useful with a flexural test where LVDTs are no longer used since the machine provides such an accurate displacement value so yield and modulus can be determined accurately
5. BitOn Use to turn on activate a specific bit for control purposes Bit Off Use to turn off deactivate a specific bit for control purposes Go to Sequence No This option will start a specific sequence in the test sequence module The current sequence will be terminated and the values at that moment recorded The newly specified sequence will be launched and any subsequent sequence from that one will be executed as well Turn off This option turns off the drive of the machine It can therefore be used as a protection In case a critical condition is met or exceeded Obviously the test would be terminated Here are the settings of our examples OSB Flexural IB Nail Pull The only setting required by these tests is the rupture detection Therefore the force first has to become greater than 50N Only then the next monitoring check is activated In that second check we will trigger the rupture if the force dropped by relatively 25 of what it was e g if the force reaches 1000N the rupture will be triggered when the force drops to 750N Page 28 of 28 TESTLOOP Your Persona Lab Assistant Sample Information Test Sequences Ruptures and Events Results Rupture and Events Order Reference 1 l E Detection Channel LM DForce 7 ae i Trigger Type Becomes greater Drops by relative jw Trigger value SD 50 Too Unts eoor E E Reaction Activ
6. Order Number Then if you want to see your results for a particular Order Number you will be able to do so with a simple Drag and Drop We will display this feature later on To create a new product click on Add in the products section The following window appears lt Add New product SEE Product Name Description Copy of Create Additional Product Identifier Data type Visible Save and Close Identify the product by its name If you are creating a new product but you would like all the settings to be similar to one already created check the Copy of and select which product from the drop down list now available Then click on Create lt Add New product DBR Product Name Description 20 mm V Copy of Visible Cancel and Close lab Page LofLr integratio on TESTLOOP Your Personal Lab Assistant From then on you can enter its description Additional product identifier You will have also noticed that the first denominator has been created automatically which is Sample ID You can now rename this field by clicking once on It and typing over the new name The data type will help you specify the type of data that will be used in this field 3 types exist String Allows you to enter any type of data in It should be used even for field that you name Order Number In this case number is a reference nota value or a quantity N
7. Templates and Settings Remplissage Manage Compaction Compaction2 compaction3 Page 55 of 55 By clicking on Show report a window pops up prior to printing Select layout Hesult format Section Group l l Header l 0 00 l Header 0 00 Detail l 0 00 l Header l 0 l Detail 0 Detail Insert your loga Remove logo Ok Cancel You will notice all sample related items parameters and the tests results Different options are offered to you Caption Each product ID can be renamed to comply with specific requirements for report purposes For instance the Span item could be replaced with the distance between 2 point bend Result Format This field is applicable for numeric type items such as dates and has nothing to do with chain characters Section There are three areas pre defines as Header Group and Details Header The name of item and its value are placed following the information such as Name of procedure Standard etc Should the sample dimensions be the same this area is perfectly suitable for it Group There must be at least one group set up and Sample ID is set as the main one by default Grouping is useful when you want to get aggregate details related to identifiers Details Tests results and dimensions of the samples are virtually the only information showing may vary from test
8. The plus sign to the left of direction allows you to enter these pre defined values so that the user will be able to select from a drop down list rather than entering it every time with possibility of mistakes To add these values simply click twice on the plus sign and a small window will appear allowing you to add the values Additional Product Identifier Mame Data type visible P E Direction String Ea T MD o E y pajo o EE Data type visible Operator String Mark Read nooo Shelly Black Ra mond Lavoie Clicking on Save and Close will save this product and its settings METAL Our metal processor wants to test a processed sheet metal product called HT1054 They identify their samples with a Heat No which is the temperature processed batch Also useful is the Date Customer Supplier and the Temperature Their window would look like this Page 14 of 4 TESTLOOP Your Persona Lab Assistant lt Edit product Product Name Description fis mm pee OSB board Ez Additional Product Identifier Name Data type Visible Sample ID String v Test Date Date Direction String Operator String Temperature Save and Close Here again you can take advantage of the pre built list by adding your suppliers and customers name so the only thing the user has to do is select from a list rather than typing the names ov
9. clockwise the move the crosshead downwards Turn it counter clockwise it goes up The crosshead only moves as you turn the Digipot You stop turning it stops moving Click back on the key to deactivate the function The stop button stops the machine at any time Of course the emergency buttons both on the interface and the computer are connected and fully operational when pressed Whether you decide to control the machine through the interface or the computer it will be just as easy and user friendly You now have all the necessary knowledge to position the machine install your grips and test your samples 6 5 Starting a test To start a test click on Start on the machine control icon The Test Results window comes up automatically filled out with the products identifier the sample dimensions to be edited if any and the selected test results Page 49 of 49 NOTE All fields in BOLD have to be either filled out or edited prior to launching a test Since we have entered a list of possibilities for Direction MD and CD and Operator all we need to do now is select from the list If a given value is not present simply go back to the main screen where your product is already selected click on Edit and you can go and edit your list of choices You may have to close the Performing Test window and reload it again in order for the list to update completely Here is how the table fills ou
10. especially when software compensation for machine rigidity is used Offset Yield D A deformation gauge was used in the evaluation the offset yield It will only work of course if a deformation channel is present Modulus P The P in this modulus evaluation indicates that it was determined using the position channel of the machine rather than a deformation gauge It is useful with flexural testing where LVDTs are no longer used since the machine provides such an accurate displacement value consequently the yield and modulus can be determined accurately especially when the software compensation for machine rigidity is used Modulus D A deformation gauge was used in the evaluation the modulus yield It will only work of course if a deformation channel is present Page 31lof 31 TESTLOOP Your Personal Lab Assistant Available Test Results Elements Selection gt Result selection Points Maximum Minimum Upper ield Lower Yield OfFsetvieldP Offset yvieldD Modulusr ModulusD Tear and peel ill Area under curve Test sequences lt Tear and Peel Many other calculations are available for these types of test as displayed below For each value TESTLOOP can report the Force or the Strength Force Width for peel tests or Force Thickness for tear tests see your machine configuration to create a Strength channel rather than a Stress channel H Tear and peel
11. lt Unite value The name of the result can now be edited by clicking once in the name which appears as Points Maximum M achine Force Start typing and it will overwrite the existing name to a more meaningful one such as Maximum Force Page 33 of 33 TESTLOOP Your Persona Lab Assistant Selected Test Results Name Units Format You can select your preferred units for the force right here with the number of decimal places you d like to be displayed Remember that TESTLOOP always stores the full resolution and choosing to display less decimal DOES NOT truncate the results You may have noticed by now that the third window at the bottom right Result Parameters is populating as well Let s see what s there Result Parameters Name Maximum FOCE ad Channel Base n Start Unit Start Stop Unit Stop i Value AT Unite Value i 7 The name of the result appears again but it is now possible to specify in which area of the graph the result is to be found For instance if the maximum force is desired between 5 mm and 25 mm of the movement of the machine the parameters would be setas follows Channel MachinePosition Since we want to find the results between 5 mm and Base 25 mm we first have to establish 5 and 25 mm of the machine displacement which is the position channel Start oe Value where to start looking for the maximum force Start unit The fact that the Position channel was select
12. the Stop in PERCENTAGE units If you specify Percentage rather than absolute units N Ibf TESTLOOP will know you mean the Percentage of the Maximum Force Here is how it would look In this example we have used from 5 to 25 of the Maximum of the Force channel The original Slope could have also been determined between 2 Force values 2 Stress values 2 Time limits 2 Position values and 2 StrainP values Available Test Results Selected Test Results cau a Name Units Format Stress L a Maximum Force i 0 000 k E OffsetvildP A nn 0 000 El JJz Position O Force L Time L strain O Offset YieldP Stress Stress Channel Base JJz Force ki E GffsetvieldD Start 2 JJz E Unit Start Yo T Fosition L stop Force O Unik Stop Yo ka Time o value AT Oe Sr v Unite Value i id The Offset YieldP is determined using the Position channel so the slope is calculated as A Stress over A StrainP Also the Value AT HAS TO BE a StrainP value 0 2 for metal 1 2 or 5 for plastic and rubber are typical values Note Between the 2 values specified the initial slope is calculated using the linear regression best fit method Offset YieldD Mandatory The Offset Yield is that point where the stress starts to bend down from its original course When is meant by original course is the Modulus of Elasticity the elastic region of a material where the Stress Strain curve goes up usually in a linear
13. Connect and Retrieve Channels For LM and IMD machines make sure the machine is ready to connect For Console the channels are created without connection After the machine is ready all available channels are listed with their Standard names You can rename the channels but try to use meaningful short names because these names will be presented throughout the software options Just click on the name of the channel you want to edit and type over the new name For instance you may want to rename the force channel to load Most channels have a meaningful name but if your machine is equipped to read say the temperature the channel name may come up as Channel5 since this is an added unidentified channel Itis then useful to change its name to a more descriptive Oven Temp Here is a list of typical channels created and the explanation of their settings Position A very important channel the second of importance next to the force It Is often wrongly called Extension or Elongation although position becomes the only source of Extension Elongation when no extensometer is being used Position displays the travel of the lab Page 9 of 9 Eo integrat TESTLOOP Your Personal Lab Assistant crosshead during a test and this channel is used for speed control in case of Rate of displacement e g mm min in min Settings for position Position uses Dimensional type of un
14. Points Maximum IF 132 Position Force Time StrainP Stress Minimum El 332 Position Force Time 6 Performing a test TESTLOOP Your Persona Lab Assistant Selected Test Results Name I Points Maximum 132 Force Now that we have atleast one defined machine one defined procedure template and one product we are ready to test the products lt Products Products Associated Procedures DER Templates and Settings Procedure New test Remplissage Manage Edit 2 Compaction Compaction2 compaction3 6 1 6 2 Page 41lof 41 TESTLOOP Your Persona Lab Assistant Product and Procedure Association Before starting we need a method to testa product so they have to be somehow associated Here s how Select the product you wish to test We will use our OSB manufacturer as an example They use 3 methods to testa batch of products Flexural IB and Nail Pull Here is how it becomes associated Associated Procedures Templates and Settings Add Edit Delete Flexural test a Manage IB Nail Pull gt compaction3 Ra We first select our newly created 13 mm board The Templates and Settings list becomes populated with the available test methods To associate the procedure simply select the desired one one by one and click on the mer
15. fashion until the material YIELDS is no longer elastic This Yield is determined by an offset of the curve from its Modulus line To determine the Offset Yield D we need to know the original slope of the curve the Modulus so that we can calculate when we deviate from that slope by a value specified in Value AT There are a few ways to calculate the original Slope The most popular one is to use the Force as a Channel base and to specify the Start and the Page 36 of 36 TESTLOOP Your Persona Lab Assistant Stop in PERCENTAGE units If you specify Percentage rather than absolute units N lbf TESTLOOP will know you mean the Percentage of the Maximum Force Here is how it would look In this example we have used from 5 to 25 of the Maximum of the Force channel The original Slope could have also been determined between 2 Force values 2 Stress values 2 Time limits 2 Position values 2 StrainP values 2 Deformation values or 2 StrainD values Available Test Results Selected Test Results a 2 Al Name Units Format Position A a Maximum Force 0 000 7 b Offset Yield Stress with gauge MPa 0 000 Force E a Time O StrainF a Stress O E offset vieldD Result Parameters F ue Name Offset YieldD Stress with Position 0 4 Channel Base JJz Force Stark 5 none H Unit Start Yy 7 Time L fStop 25 StrainP m Unit Stop P Stress Value AT 0 2 ModulusP we Unite Value Hy
16. not considered Lower Yield Not mandatory Lower yield is a turning event where the force after coming down starts going up again The lower yield is that valley and the software will determine this minimum from the Upper Yield If a search area was to be specified Lower Yield can therefore be used to find a valley minimum in a specific area of the test after a peak was determined For a simple minimum value not related to a peak Minimum can be used Lower yield is a force phenomenon so the Channel Base should be an X type channel Value AT and Value units are not considered Offset YieldP MANDATORY The Offset Yield is that point where the stress starts to bend down from its original course When is meant by original course is the Modulus of Elasticity the elastic region of a material where the Stress Strain curve goes up usually in a linear fashion until the material YIELDS is no longer lab Page 35 of 35 iategratio oe TESTLOOP Your Personal Lab Assistant elastic This Yield is determined by an offset of the curve from its Modulus line To determine the Offset Yield P we need to know the original slope of the curve the Modulus so that we can calculate when we deviate from that slope by a value specified in Value AT There are a few ways to calculate the Original slope The most popular one Is to use the Force as a channel base and to specify the Start and
17. time to bring up your machine s visual interface There are a few that exists Console There are 3 consoles EZ LR LRX and TCD Make sure the proper one comes up Page 46 of 46 TESTLOOP Your Persona Lab Assistant LM and LMD machines Machine Name Machine On button Indicator Emergency Swtich Unit Selector LEO 120 Position p Force P 0 000 in 4 ji Test duration F 0 380 n i Strain based i T 99 5405 z H KO on position j 5 0 000 m SUD ET Strain based gt 0 380 r ar 4 on deformation Connect Disconnect Jog Keys Please refer to the LCD User Manual for non PC CONTROL operation Numeric Keypad Jog Speed Adjusiment e The display Under normal operation will show 3 to 8 lines of measured channels depending on the available channels builtinto your machine Typically you should always see channel F which stands for Force and channel P which stands for Position If channel D is displayed it will stand for Deformation when an extensometer has been connected The numbers on your computer reproduction will now display the same numbers as those on your machine However we have given you the possibility to change the units of calculation on your computer reproduction for your convenience e Connecting to your machine If your machine is not already showing PC CONTROL press F2 Menu and scroll through the menu by pressing F2 again until the pointer is on PC CONT
18. Force Stress Time Position StrainP Deformation and StrainD are all valid channels Value AT and Value units are omitted Slope Mandatory The slope is the same as the Elasticity but the Force Deformation is used instead This is actually the RIGIDITY of a material expressed in N mm Ibf in kgf cm etc Offset Mandatory The parameters for Offset should be the same as those for Elasticity The Offset is the X value on the StrainD channel if the initial slope was drawn down to 0 on the Y axis Tear and Peel All results for Tear and Peel tests are either a direct Force or a Strength Force Width for peel Force Thickness for tear Maximum Mandatory For Tear and Peel tests we are usually looking fora maximum between 2 limits which covers the delamination or tear period Specify the Channel Base which will usually be Position and the Start and Stop values and units Minimum Mandatory For tear and peel tests we are usually looking for a minimum between 2 limits which covers the delamination or tear period Specify the Channel Base which will usually be Position and the Start and Stop values with their respective units Mean Mandatory The mean Force or Strength has to be evaluated between 2 limits Again specify the Channel base probably Position and a Start and Stop value with units that will cover most of the delamination tear F
19. IbF Min 1 Max 1000 Geometry Rectangular of max Force of max Force of max Force of max Force Rigidity Use Rigidity Rooty ont Y Save Exit Exit without Saving Let s create procedures for the test required in our 2 examples m OSB Our OSB manufacturer will do a flexural test an IB testand a Nail Pull test METAL Our metal manufacturer will process a regular metal tensile test Name To create a new procedure click on the line once where the appears and start typing the name of the new procedure For instance you may type Flexural Test to start programming the flexural setup Description You can then enter a description for that test Your explanation can be short or can be very long If the length is exceeding the window will expand over and over to display the whole text A drop down arrow will also appear allowing the description to be opened and displayed completely It is now possible to enter more information than a general description if desired Standard The test can be referenced to a particular Standard which you can identify in the Standard column If the list of procedures templates become very populated it will be possible to find a desired standard by Page 16 of 16 TESTLOOP Your Personal Lab Assistant sorting the column To do so a simple click in the column header will sort the whole list ascending or descending Device
20. M Machine 1 sec 1 20304 Connect and retrieve channels f 01020304 Type of units i Invert in compression Change at Value Change Unit Dimensional y yi 0 imam Force lo iN Time Is Percent EA Dimentional Ti EA Force Time Yo Dimnl Dirn Strain Pressure 5 i 5 lo hk Pa WRC CC __ BitName gt Bit Ino Save Exit Exit without Saving The top list displays the machines available for connection while the bottom list shows the list of channels for the highlighted device Adding a device To add a device simply click once in the name field on the line where the star is See below Start typing a name for your device will change it as follows PIL 81020305 connect andretievechaele el cl fl 1020304 Name You can give your machine device a name When choosing the name keep in mind that this machine name will appear in the list of results so it should be meaningful to you while not being too long Avoid using multiple words to keep it clean although it will stll work should it be necessary for better identification Page 8 of 8 TESTLOOP Your Personal Lab Assistant Device Type Select from the list the type of instrument you will be connecting to run the test The most popular will be the LM Machine from LAB INTEGRATION INC Other systems can be connected and the l
21. Maximum Minimum Mean First peak Average of peaks yverage of valleys Maximum Identical to the other maximum it has been made available here so that the selection of test results is somewhat grouped Minimum Although identical the intention with this minimum is to specify a region of the curve where to look for the minimum very useful in a test where the force oscillates Mean An important measurement in tear and peel testing the user will be prompted to specify where to calculate the mean force or Strength on the curve First peak Average of peaks Along with Average of peaks and Average of valleys these are intelligent measurements The linear regression best fit line is first evaluated within the region specified A peak is the highest value in between where the point goes above the regression line and where it goes under The valley is the contrary The first peak is the very first occurrence of this from the start of the test regardless of the evaluation limits The linear Page 32 of 32 TESTLOOP Your Persona Lab Assistant regression is calculated between 2 limits See first peak and the peaks are the highest values between where the curve goes above the regression line and where It goes below It is possible to specify an offset from the regression line to make a peak valid TESTLOOP will report how many peaks it found and their average Average of valleys The linear regress
22. Page lofl TESTLOOP Your Personal Lab Assistant TESTLOOP C User Manual March 20 2006 Copyright 2004 2005 Lab integration Inc TESTLOOP is a trademark of LAB INTEGRATION INC 6 Page 2 of 2 TESTLOOP Your Personal Lab Assistant TABLE OF CONTENTS InttoduCUiONn 2 222 nn nnn n nnn nn nn nn nn nn nn nnn nnn nnn enn nn nen nnn nnn n ene 3 Requirements 22 222 n none nnn nn nn nnn nn nnn nnn nn nnn nnn nner nnn nnn cence nee 3 Software installation 4 TESTLOOP C Structure 222 22 nn cence nnn nnn n ern n nnn e nnn cnn n nnn nnn n ene n nnn nenn nen neeennennenenncnseessensses 4 Starting the application 5 5 1 Defining a machine 6 5 2 Creating a new product 10 5 3 Creating a new testprocedure 4 5 4 Selecting Results and Setting Parameters for Calculation 32 Performing a teSt 7 7 7
23. ROL Press F1 Esc to select this option On your computer you can now click on the Connect button next to the display of the machine control reproduction e Positioning the machine As previously mentioned the LDC display has been reproduced on the software so that you can control the machine by using the computer keyboard the mouse or the machine interface It will have the exact same effect Page 47 of 47 iae oe S First press the Connect button to communicate with the machine meaning the machine is ready for positoning Once the connection button turns green the communication between the computer and the machine is established The display will show the selected values By pressing the C Control ON button you ask the controller to turn the drive system ON whether DC AC or even a hydraulic power pack If there is a problem the machine will automatically turn the power off JOS SPEED ty eld s The Jog Speed is set automatically to 50 of the machine s maximum speed so 2 times that speed is your machine s maximum speed The numeric keypad on the LM machine or computer is now used to seta different Jog Speed if desired Pressing any of those numbers will set the Jog Speed to an equivalent percentage of the maximum speed For example Pre defined jog speeds Pressing a number on the keypad sets the jog speed to a percentage of the nominal speed of
24. Setup The Device setup used requires the machine setup to perform the test Select from the list the appropriate setup Test Type General purpose tension and compression all have the same formulas in the background for stress force Sample area and strain elongation gauge length The tension and compression selections are more for quick recognition but they don t perform any differently than General purpose Test Direction This selection determines if a test is going to be in tension or compression Typically a machine is set to give positive numbers in tension and negative numbers in compression This selection will affect all channels that have the Invert in compression checked once you have set your device see section 5 1 for more information Ist TAB Sample Information To perform a test we need to know what type it is and the geometry of the sample because these affect calculated results such as stress strain strength and many others Specify sample dimensions These are the DEFAULT VALUES ONLY You will be requested to enter the exact values before each test if you check the Use box next to the measurement If the box is not checked these default values will be used for calculations if a calculated value is requested Specify the units of measurement They can be mixed since TESTLOOP converts everything in SI units in the background and then converts back to the user s preferences Spe
25. The Offset YieldD is determined using a deformation gauge so the slope is calculated as A Stress over A StrainD Also the Value AT HAS TO BE a StrainD value 0 2 for metal 1 2 or 5 for plastic and rubber are typical values Note Between the 2 values specified the initial slope is calculated using the linear regression best fit method ModulusP There are a few results under ModulusP and they are listed below All calculations in the following section are all based on the POSITION and or StrainP channels E ModulusF Elasticity Secant Chord Slope Offset value Page 37 of 37 TESTLOOP Your Personal Lab Assistant Elasticity Mandatory The ModulusP of Elasticity is the initial slope of the Stress StrainP curve It is also called the Young s Modulus or MOE This is the region where the material exhibits elastic behaviour so if itis unloaded while in this area it will return to its original state The best method to determine the ModulusP of Elasticity is to use the Force as the Channel Base and to specify the Start and the Stop in PERCENTAGE units If you specify Percentage rather than absolute units N lof TESTLOOP will know you mean the Percentage of the Maximum Force It could also be determined between 2 Force values 2 Stress values 2 Time limits 2 Position values and 2 StrainP values Between the 2 values specified the ModulusP of Elasticity is calculated using the linear regres
26. ably not appear Deformation s type of units is Dimensional where again you can select the default units It is truly your preference to display this channel but if you are using a device to measure deformation it is advisable to do so Typically the deformation gauge should be inverted in compression testing but compare the movement to determine whether it should be inverted or not If the resulting movement is in the same direction or with position and or force then it should probably not be inverted StrainP Strain is a calculation It is the ratio of the change of form from the original form expressed as a ratio or aS a percentage of change ratio x 100 A real strain is usually established using a device extensometer LVDTs etc but it has become popular to determine the strain using the displacement change of position of the crosshead We call this StrainP because the calculation relies on the position of the crosshead StrainP uses Dim Dim type of dimensions and the units can be strain ratio or strain ratio x 100 Channel inversion should follow that of the position channel Note For proper StrainP calculation make sure the parameter Parallel section is filled in properly StrainP will equal AP Parallel Section lab eN Page 10 of 10 integration TESTLOOP Your Personal Lab Assistant Stress Stress is a calculation For standard tension and compression tests the stress is
27. ad When preload is selected the position and only the position will be zeroed at this preload value This is very useful if you want to eliminate the displacement that occurred before the sample was actually touched In flexural tests for example there is always some clearance left between the loading nose and the sample so that the latter can be inserted easily The calculations should begin though only when the loading nose touches the sample This sequence can be done quickly by using Preload in Sequence type and by setting a faster speed Note Use the preload only ONCE during a test Conditioning No data is stored during a conditioning stage This is very useful in foam testing where the foam needs to be preflexed prior to launching the actual test Ithas also proven useful when tests are conducted for hours and information does not need to be stored atall times Speed control Soeed Speed Units With testing machines It is believed that a speed is a rate of displacement i e mm min or in min etc But with LM and LMD testing machines and some other types itis also possible to set the speed as a rate of loading N s lbf min a rate of stressing MPa s psi min and even a rate of straining Strain min etc with optional extensometer a lab PEN Page 2lof21 integrat on TESTLOOP Your Personal Lab Assistant The Speed control selector will display only the control channels that are available There a
28. and clicking on it again will resume to its normal size Below the Y t button allows to display all channels against time and to revert to X Y by clicking on it again Y j t The export will be a very nice and quick feature It will create an ASCII file of the whole test for all channels present in their engineering units selected by the user either in the preferences or on the graph itself It will then be possible to use another software such as a spreadsheet to manipulate the data if desired Export Page 45 of 45 TESTLOOP Your Persona Lab Assistant But the 2 important buttons here are Edit parameters Edit parameters works exactly the same as when the Edit is clicked next to the procedure from the main window You will notice though that the button will make the whole width of the newly opened screen and clicking on it will save the change and close the window as indicated on the button The Test Results window is one that operates by itself while testing but it may be practical for you to open itsometimes and close it some other time Again the button makes the whole width of the newly opened window when clicked and it allows to close the window again once done Channel Force From i To 10000 Position From 0 To fio Units mm Y 6 4 Discovering the Machine User Interface Of course TESTLOOP uses a machine to perform the test so when comes the time to do It it is
29. anges if any and click Start to proceed with the next test You can carry on until you have completed testing your batch ab integration iae Page 52 of 52 Accept allows you to SAVE this test It is good to use it after the last sample of a batch Prod ID in this case If after clicking Accept you wish to carry on testing simply click the Test Results button to close that window and click on Start again You will have to re enter the information then click Start Once you are done with this test simply close the Performing Test window Rejects will simply delete this test but will reload the table with the information previously entered The new testis ready to be launched If you click Report right after the test has finished only the graph will print If Accept is pressed before Report will include every curve and every result ticked in the Graph section 7 Displaying test results 7 1 Results through the page of products First select a product then click on the name of the procedure related to this product A list of results will pop up in a window frame as follows lt Products Products Associated Procedures Templates and Settings Edit Delete i Name 2 Procedure New test Tensile Manage Compaction2 Edt Compression Metals Tensile Table of Results bay ID Sample ID In test Span mm Thickness mm f Width fmm M
30. are similar to IB Page 19 of 19 TESTLOOP Your Persona Lab Assistant lt Templates and systems configuration Procedure Templates Device Setup List of Procedures Name Description Standa Device setup used Test Type Test Direction Barier hoas Ea 2 A Elongation Elongation A ini Lm60 General Purpose D Tension Positive Rupture 7 i Console Tension a Tension Positive Bord Flexion A Console 3 Point Flexion Compression Positive Pour moi ASTM Console Compression v Tension Positive Test de longueu V rifier la possibilit d avoir unebo Le mien iLM60 General Purpose Compression Positive at t T Sample Information Test Sequences Ruptures and Events Specify Sample Dimensions Compensation Geometry Rectangular x Unit Use si of max Force 438 2 mm oat o of max force E Mi fo E of max force iri vi ai of max force Min 1 Rigidity Max 10 Use Rigidity Rigidity me ia Save Exit Exit without Saving METAL Tensile With the metal tensile we will set the machine as a tension test with a rectangular sample and the graph axises are going to be different because we will display the stress and the strain in this case Sample Information Test Sequences Ruptures and Events Results Compensation Axes Consolestress zj Unit MPa z ee to Geometry Toe in Rectangular Use Format Gauge Le
31. ate next check Return end of test eal A Bit or Sequence Number il 4dd automatic rupture detection METAL Tensile The metal Rupture and Events page will be busier There are 2 checks required but they need to be started only when a condition is met which is when the force has reached a given value or has Stabilized The first check will be a standard rupture detection while the second check will be about detecting the yield To do that we monitor the Command channel and we check if it increases which would indicate the machine is trying to compensate for a drop in the load for a given strain The programming would be as follows Sample Informations Test Sequences Ruptures and Events Results Rupture and Events Detection Channel LMEO Force o LM60 Force LM60 Force oe LM 0 Command Trigger Type Becomes greater A mops by relative Badfbecomes grester gin ncreases by relative Trigger Value _ SS gm F A Reaction Activate next check Stop end of test Activate next check fa _ Add automatic rupture detection Page 29 of 29 TESTLOOP Your Persona Lab Assistant 4th TAB Test Results This tab is used to select the desired test results This is the result page when no result has been selected E E Tea En ae eee Tem i Sample Information Test Sequen
32. cause the force is yielding therefore the machine accelerates to compensate The Command causes the acceleration that can be read also by SpeedD which will accelerate change SoeedF can be used to detect a rate of falling of force to trigger a rupture Look for more information in the Rupture and Events section of this manual Two examples to explain our manual To explain the functionality of TESTLOOP we will be using two examples An OSB oriented strand board engineering wood manufacturer and a sheet metal supplier When referring to the board manufacturer we will use OSB while for the metal producer we ll be using METAL 5 2 Creating a new product To start running a test at least one product has to be defined This step is important as it will be defining your database and will help you manage your data The first thing to establish is the smallest grouping denominator What we mean is that when you come to perform a test you usually have a small group of samples say from 1to 20 that you want to test to Page lof ll TESTLOOP Your Persona Lab Assistant get one result the average This average becomes the published result This group of samples is identified by a single ID that we call the Sample ID It may be your Lot Number Project Number Run Number Heat Number or any other reference Obviously more identifiers can be added such as Date Colour Side and
33. ces Ruptures and Events i Results i Selected Test Results Selection Name Units Format Available Test Results Elements Result selection AF Points HE Test Sequences iE Ruptures and events Result Porameters The Results page is divided into 3 sections which are all linked together The one to the left displays the results available It consist of a tree that helps group the measurements There are 3 major groups Points Known test results with specific calculations Test Sequences Those are the values of each channel at each sequence programmed Ruptures and Events Those are the values of each channel when the events hit Let s explore the Available Test Results window further by clicking first on the next to Points It yields this window for our programmed OSB Flexural test From there we can see two new grouping showing up the points themselves Showing Maximum and Minimum and the machine J2 with the available channels under the machine If you had more than one machine or a data acquisition system they would appear under each point with their respecting channels Sample Information Test Sequences Ruptures and Events Results Available Test Results Selected Test Results Elements Selection Mame Units Format G Re ultseledtion o aaa E eons asm AO OEE UE NO COE H Points El Maximum E But dant 2 3 E m E
34. cify the number of decimal places for the values Again TESTLOOP uses all decimals entered for calculations even if it displays only the number specified Geometry The Sample Geometry affects calculated results because the formula to calculate the surface area might be different from one another Select your sample geometry and if itis not in the list you can select other to enter directly the surface area In flexural test other will give you the choice of Moment of Inertia and Section Modulus In this case the one completed field will be used for calculations only In peel testing only the width is considered while in tear testing and only the thickness of the sample is required for strength calculations Page 17 of 17 TESTLOOP Your Personal Lab Assistant Compensation Compensation is a way to eliminate unwanted phenomena that occur during testing It comes from either the machine mechanism and or the accessories which are inevitable despite how well they are designed and they operate TESTLOOP gives you full control in the method of doing so by introducing these 2 corrections Toe In Caused by tightening up as the load increases Itis demonstrated on the first section of a test curve increasing gradually kind of exponential it should be linear in reality The compensation calculates the rigidity of the material and draws a line to zero load See red curve and recalculates a new o
35. e in TESTLOOP The first one is really simple You just have to double click anywhere in the table of results to get a printable format of all results appearing on the screen as the following example Page 54 of 54 A menu appears when you click on the REPORT red button Two options are available e Upload the graph e View the report lt Products Table of Results Edit Bord Y Delete Associated Procedures ID Sample ID In test Span mm Thickness mm REPORT Teron Caron al arom Ii 438 15 438 15 17 72 18 32 Procedure New test Width mm 114 30 114 30 Mor psi 3800 676 3357 013 438 15 18 92 114 30 899 198 839 654 3461 985 796 863 rron i 438 30 17 85 114 30 4205 004 927 129 rron i 438 20 438 15 18 50 17 50 f 18 14 17 84 114 30 114 30 114 30 114 30 3838 268 4117 412 4184 282 3081 529 598 369 868 601 943 624 913 489 17 84 114 30 4176 534 916 582 18 00 1785 114 30 114 30 3657 612 3892 092 3781 163 2811 508 864 768 853 241 928 664 758 076 4664 125 981 390 2742 886 5992 262 4313 934 746 572 1036 710 860 886 4699 450 878 441 5127 078 1049 157 3290 646 2966 696 4186 370 751 298 775 044 877 489 w w w w w w w wi y vi N 289898 299 9147 323
36. e results will be displayed depending on the product and procedure selected To perform a test you must have Defined atleast one machine in Templates and Settings Defined atleast one procedure in Templates and Settings Defined atleast one product in Products Defining a machine TESTLOOP was created to interact with many different devices These devices are the instruments that generate the test data so TESTLOOP must know what device to use for a particular test These devices could be one of the following LM Testing Machine or any other supported testing machines Dimensional measuring equipment allipers gauges Scales Impact testers Data acquisition systems And the list goes on You must have a least one machine defined to be able to perform any test To create and define one or any machine click on the Manage button in the Templates and Settings group At the top of the new window click on the Device Setup tab and your screen should look like this Page 70f7 TESTLOOP Your Persona Lab Assistant lt Templates and systems configuration Procedure Templates Device Setup Device type Comm port Baudrate Samplingrate Setup number Retrieve Channels LM Machine 1020304 Connect and retrieve channels LM Machine 1 o 2 o 3 e 4 Console sec 1020304 Connect and retrieve channels Machine 118200 gt S0lsex 01020304 Corect and retrieve channels L
37. ect when a bit or a group of bit changes This detection is for when the bit goes from Off or a floating condition to On Drops by This is to monitor an absolute change in the channel from another value The Drops by Is typically a change from a maximum attained If you want to monitor an absolute change from a minimum consider using Increases by Drops by relative While the Drops by is an absolute value the Drops by relative is a relative value in Again this would by a drop from a maximum attained Increases by This is to monitor an absolute change in the channel from another value The Increases by is typically a change from a minimum attained If you want to monitor an absolute change from a minimum consider using Drops by Increases by relative While the Increases by is an absolute value the Drops by relative is a relative value in Again this would by a drop from a minimum attained Trigger value Enter the value for the trigger In case of bit detection specify the bit number Page 27 of 27 TESTLOOP Your Personal Lab Assistant Trigger units Select the units for the trigger In case of bit detection no units are required Reaction This is important It determines the next action that will occur now that our events have triggered Here are the options Activate next check When you wanta check to trigger launch another check this is t
38. ed in the channel base only position units can be selected Stop 25mm Value where to stop looking for the maximum force Stop unit Will probably be the same units as Start unit although other dimensional units can be used for this search Value AT No use in this case Unite value No use in this case A word on Channel Base Channel base is the tool that determines where to look on the curve Typically Force and Stress are on the Y axis while Position Time and Deformation are on the X axis You would usually use an X Channel Base to narrow a search for a Y result and vice versa Page 34 of 34 TESTLOOP Your Personal Lab Assistant Some test results need another parameter for their determination This is where Value AT and its units will be used The following explanation of each point and our examples will demonstrate how this parameter is being used Parameter settings for test results As you have now learned it is possible but sometimes also necessary to specify an area on the curve where to search for the result Here are the possibilities and requirements for each result Maximum Not mandatory If the parameter fields are left blank the maximum force of the entire test area will be reported To narrow the search the Channel base needs to be specified Since Maximum refers to the value of each channel at the MAXIMUM FORCE Y axis the C
39. er and over which might trigger some mistakes Save and Close will again store this product ready to be tested Our products have been created now we need procedures to test them 5 3 Creating a new test procedure To create a new test procedure to be used over and over again we define itas a template in Template and Settings from the main menu Click on Manage to access the procedure templates The following page will appear The top section of the screen displays the list of available procedures The lower part shows the settings for the selected procedure within the 4 tabs Sample Information Test Sequences Rupture and Events and Results Page D of 5 TESTLOOP Your Persona Lab Assistant lt Templates and systems configuration Procedure Templates Device Setup List of Procedures m Name Description Test Type Test Direction Elongation Elongation A vinir General Purpose Tension Positive Rupture Rupture LASTI Console Tension Tension Positive Bord Flexion LASTI Console 3 Pont Feson gt Compression Posiive Test diinsertio Pour moi ASTM Console Compression v Tension Positive Test de longueu V rifier la possibilit d avoir une bo Le mien Lm60 General Purpose v Compression Positive Sample Information Test Sequences Ruptures and Events Specify Sample Dimensions Compensation Axes ConsoleForce Unit
40. ge button to the left This will remove the procedure from the list and move it into the Associated Procedures list It will now look like this Associated Procedures Templates and Settings Name Procedure New test compaction3 a Manage Add Edit Delete fi 3 mm v gt Flexural test Edt T ae compaction4 IB Edt T longation Nail Pull Edt Rupture Now the Nail Pull IB and Flexural Test have all been associated with the product 13 mm They are no longer available from the Templates and Settings although they have not been deleted Adapting a Procedure for a Product Now that the procedure is associated it can be adapted specifically to this product For instance you can use the same template for a 13 mm board and an 18 mm board but the speed and the default thickness will differ for a flexural test To adapt the procedure to the product click on the Edit button that Is to the right of the name of the procedure The following window will come up The top row lists the name of the procedure being used its description the reference to the standard and the machine setup required or being used to perform the test The name of the procedure can be changed here but you should keep a reference to where it originates For Instance Flexural Test can be renamed to Flexural 13 mm Atleast you Know it originates from your Flexural Test template The same thing applies to the Descri
41. hannel base should probably be an X axis type of channel Position Time Deformation Value AT and Value units are not considered Minimum Not mandatory If the parameter fields are left blank the minimum force of the entire test area will be reported Ifa test goes in tension and compression or compression then tension such as an inserton extraction test the Minimum will be a negative value If the test is only in one direction it may become very useful to specify a search area for the Minimum otherwise it will more than likely return to zero the force was at zero when the test started To narrow the search the Channel base needs to be specified Since Minimum refers to the value of each channel at the MINIMUM FORCE Y axis the Channel base should probably be an X axis type of channel Position Time Deformation Value AT and Value units are not considered Upper Yield Not mandatory Upper yield is a turning event where the force after originally creeping up starts going down The upper yield is that peak and the software will determine this peak from the start of the test If a search area was to be specified Upper Yield can therefore be used to find a peak in a specific area of the test Upper yield is a force phenomenon so the Channel Base should be an X type channel Value AT and Value units are
42. he option to use It is used for rupture detection because if we were to start the real rupture detection immediately that is the force drops by 50 for instance it always triggers right away This is due to the small variation of load when the machine is idle It could represent only one or 2 bits of resolution but itis enough to trigger a break So we first let the force reach a certain value force becomes greater than 50N for instance so that it is constantly creeping up Then we can Activate the next check which is to look for a drop in force by a certain percentage of the maximum it reached The Activate next check is used again for starting to look for the yield When the force has reached a given value that is it becomes greater than that value the command of the machine is then constant while in the elastic region of the material If the command increases by a certain percentage say 10 e g the material is yielding so It is time to change the control mode We can initiate this by selecting the Go to Sequence No in the reaction and by specifying that number underneath Record values The values are recorded anyway so this option specifies to do only this at this time Return End oftest Same as in the Test Sequences the machine returns to the origin where it started the test and the test terminates Stop End oftest Same as in the Test Sequences the machine stops and the test terminates
43. hen you need to remove the sample before returning the machine to the origin to make sure the grips don t hit while returning Return End This is the end of the test and the machine can return to the original position ready to start the next test Replay sequence This feature can be used for cycling testing You can instruct the machine to go back and redo the sequences it did from a given sequence Please note that there is no use to ask the machine to redo the same sequence because IT HAS ALREADY ATTAINED the destination If you d like the machine to redo the same sequence remember that it started doing it from the previous one You then have to specify the previous stage This feature needs information from Replay sequence and Number of replay below Hold time Hold tme unit If Maintain destination and Hold position have been selected you can specify how long you want the destination or the position to be held Replay sequence Enter here FROM which sequence the replay starts Number of replays Enter here the number of times the replay of the sequences should be done IMPORTANT AND USEFUL FEATURE IN TEST SEQUENCES TESTLOOP will record the values at ALL available channels which can be selected in the Test Results tab at EACH sequence Let s say you wanted to know the load ata given distance you can add a sequence with a destination at THAT specific distance The load value will be ava
44. ilable in your Test Results To know what the load is after a waiting period of time this would be to evaluate relaxation of a sample for instance A second sequence is required which will be identical but with a Hold time instead Page 23 of 23 The programmed steps would look like this TESTLOOP Your Persona Lab Assistant Sequence Number 1 2 Sequence Type Load to 25 Wait 1 min Speed Contral 2 Position JJ2 Position Speed Value 100 100 Speed Units mmimin mmimin Ultimate Lirit eo eo Limit Units mm mmi Destination Control JJ StrainP JJ2 StrainP Destination value 25 25 Destination Units Strain Strain Action Hold position Hold position Hold Time T 1 Hold Time Unit 5 min Replay Sequence Number of Replays In this example the machine would move to 25 of the specified thickness of the sample let s say we are testing foam and since we are holding for Os TESTLOOP will record the values of all channels at that position and move on to the next stage Because the next stage is at the same position the machine will not move at all and will execute the only different parameter which is the waiting time of 1lmin Atthe end of the minute the values of all channels are recorded again and they will be available for selection in the Test Results tab Here are the settings for our examples OSB Flexural Test sequences for flexural testing are simply to move to a given preload in order t
45. ion is calculated between 2 limits See first peak and the valleys are the lowest values between where the curve goes below the regression line and where it goes above It is possible to specify an offset from the regression line to make a valley valid TESTLOOP will report how many valleys it found and their average Area under the curve The Area under the curve is the energy absorbed by a sample during a test Itis expressed in force X deformation If the deformation gauge Is present the Area under the curve calculation can be based on that channel Otherwise the position channel will be the basis for the calculation 5 4 Selecting Results and Setting Parameters for Calculation To select the desired test results simply click on the check box next to it The result will appear in the Selected Test Results window It Is first displayed as it appears on the tree but once in the selected window the name can be edited the units selected and the format of the test result applied See the example for the maximum load Sample Information Test Sequences Ruptures and Events Results Available Test Results Selected Test Results Elements Selection Al Mame E _ Units Format j ET Result selection o Points sexi ee mmm N El Points J I Maximum Moment O f Lm60 Position O Force Points Maximum LM60 Fo Tine E Strain LJ ee Stress E pie g E Minimum r E Lme0 Value AT Position L
46. irection Elongation Elongation A vinir Lm60 General Purpose Tension Positive Rupture ASTM Console Tension Tension Positive Bord Flexion ASTM Console 3 Point Flexion Compression Positive Test dinsertio Pour moi E Console Compression Tension Positive _ Test de longueu Verifier la possibilit d avoir une bo General Purpose Compression Positive Sample Information Test Sequences Ruptures and Events Specify Sample Dimensions Compensation Geometry Rectangular X Span 438 2 mm 1143 mm Thickness 16 3 mm of max force of max force of max force of max force Rigidity Use Rigidity Rigidity ce O 7 Save Exit Exit without Saving OSB B itis a General purpose tension positive test where the sample geometry is not considered because it is constant at 50 mm x 50 mm therefore the test results are directly expressed in N or lbf Sample Information Test Sequences Ruptures and Events Results Compensation A Toe in Unit Use Format 50 mm 0 00 le gt of max force J of max Force Parallel Lenath sj mm L 40 000 x of max force gt of max force Rigidity Use Rigidity Rigidity Unit Mel eony eat OSB Nail Pull Itis a General purpose tension positive test where sample geometry is not considered so the settings
47. irst Peak Mandatory TESTLOOP needs the Channel Base with the Start and Stop values so that it can determine the linear regression line Then the first peak that crosses that line is the first peak that can be expressed as a Force or a Strength Force Width or Force Thickness See the graph below Average of Peaks Mandatory TESTLOOP needs the Channel Base with the Start and Stop values so that it can determine the linear regression line Then a peak is the highest value above an imaginary line that is distant from the regression line by the value specified in Value AT between a cross going above the regression line and falling under the regression line All the peaks found are averaged and reported as a Force or Strength Force Width or Force Thickness See the graph on page 39 Only the peaks between the Start and Stop values will be used Average of Valleys Mandatory TESTLOOP needs the Channel Base with the Start and Stop values so that it can determine the linear regression line Then a valley is the lowest value below an Imaginary line that is distant from the regression line by the value specified in Value AT between a cross going below the regression line and going above the regression line All the valleys found are averaged and reported as a Force or Strength Force Width or Force Page 39 of 39 TESTLOOP Your Persona Lab Assistant Force Thick
48. ist will grow as more types of instrument become available Comm Port Select the proper communication port number On most computers Comm lor Comm 2 is available and up to Comm 8 can be added Baud rate The baud rate is the communication speed between the instrument and the computer through the Comm port LM60 machines can go up to 115 200 bauds while LM 120 and LMD220 machines can use 460 800 bauds For Console type machines this setting has no effect because the communication speed is established by the Console program Sampling rate This field affects mainly LM and LMD machines where the data transfer rate to the computer can be set The typical value is 50Hz and this is very good for most static tests Unless the computer seems too Slow to handle this transfer speed itis best to leave it at 50Hz Higher transfer rate can be used up to 200Hz for LM 60 machines up to 500Hz for LM 120 machines and up to 1000Hz for LM D20 machines Setup number Again this is only applicable to the LM and LMD machines which can store up to 4 machine configurations The same electronics can be used to control a servo mechanical frame and a servo hydraulic frame This option allows you to select the appropriate machine Most electronics though have been configured specifically for one machine only unless you know otherwise always use Setup 1 Connectand retrieve channels To retrieve available channels from your machine click on
49. its You can select your preferred units that will appear by default throughout the program and position should be displayed It should also be inverted in compression Only a few machines move in the same direction whether it is a tension or a compression test In this case the direction should NOT be inverted for these machines Force The force channel is the main channel of testing machines In most tests the maximum force will be recorded Even if you are only interested in the stress you will need the force channel since the stress is a calculation of the force over the geometry of the sample The obvious type of units for force is Force and you can set the default units you would like to see every time you select a force measurement You will be able to change it of course when setting the measurement The force should be displayed and inverted in compression test although the scale type of machines will require the force channel not to be inverted during a test Deformation Deformation is a more generic term for a channel that measures the deformation ofa sample In tension test an extensometer can be used to measure the true Elongation of a Sample while an LVDT can be used to measure the real deflection during a flexural test In any case the purpose was to measure the Deformation of the sample Note The Deformation channel is not always present and if you don t have a device to measure it the channel will prob
50. n the machine is stopped at the end of the test otherwise the nail would re enter in the piece of wood if the machine was returned Sample Information Test Sequences Ruptures and Events Results Test Sequence Sequence Number 1 Sequence Type Separate Speed Control LM60Position Sal Speed Yalue So Speed Units rammin x Ultimate Limit 50 Limit Units mm Destination Control LM60Position x Destination Value 20 Destination Units mm x Action Stop End ea E MEE EEE EEEE EEr ANN Replay Sequence Number of Replays METAL Tensile As dictated by the standard the metal tensile testis a bit more elaborate and requires 4 distinct sequences A preload needs to be applied and then the machine has to switch to a stress rate until the sample yields The Rupture and Events module can be used for yield detection More will be covered in this section But in case the yield is not detected a destination value has been set at the expected maximum yield value of the material so that the machine switches to the next sequence which is to drive in strain control for the duration of the yield period The destination control becomes the switch now for the next sequence which is to terminate the test at a faster soeed to break which will be detected again in the Rupture and Events tab NOTE By now you will have understood that Test Sequences and Ruptures and Events module work together to control the steps
51. ness See the graph on page 39 Only the valleys between the Start and Stop values will be used ri i et HLL i E U T SS E n M j lM PET ini Area under curve Not mandatory This is the energy calculated using the Position Force Position of the Deformation gauge Force X Deformation If nothing specified the energy will be calculated over the entire test To specify the evaluation area use the Channel Base and set the Start and Stop Units of Force Stress Strength Time Position StrainP Deformation and StrainD if Deformation gauge is present as well as the percentage of Maximum Force Stress can be used to narrow the evaluation area The Value AT is not used here Test Sequences Not used Only the value of the channels at the end of the selected sequence can be reported Rupture and Events Not used Only the value of the channels when the event hits can be reported The Force on the JJ2 machine at maximum in the standard points Is first expressed as Points Maximum JJ2 Force The field can now be customized to a more meaningful expression To do so simply click once in the result name it will be surrounded by a dotted line Type over the new name Maximum Force is appropriate The units will remain in N but the format has been changed to 0 0 Page 40 of 40 Available Test Results El Result selection El
52. ngth S za 0 of max force Parallel Length J L jo of max force w iO B hak ai of max force wi o of max force Axes ConsoleStrainP Unit Strain a Min 1 Rigidity Use Rigidity Rigidity m L x labs Page 20 of 20 iategratio on TESTLOOP Your Personal Lab Assistant To program a test sequence a few fields are required and they are presented to you this way Sample Information Test Sequences Ruptures and Events Results Test Sequence gt Sequence Number F 2 Sequence Type Preload Conditionning Speed Control ConsolePosition ConsolePasition Speed Value So 1431 Speed Units Immimin mmmn ay Ultimate Limit 10 J100 Limit Units Imm Imm Destination Control ConsoleForce ConsolePasition gt Destination Value 2 J50 Destination Units bf mm x Action Next l Return End pa Ei Hold Time Unit E z Replay Sequence Number of Replays You can program as many sequences as you want There are no limits Here is the explanation of each field in more details Sequence number Enter the number in which you want the steps to be executed 1 2 3 etc Sequence type This identifies that sequence or it performs a specific option When you move into this field a drop down arrow will appear and 2 selections are available Preload and Conditioning Prelo
53. nt TESTLOOP TESTLOOP C has a unique way of presenting results What was observed is that Products are tested instead one or many Standards which provide a Testing Procedure Page 5 of5 TESTLOOP Your Persona Lab Assistant Associ Test Temples mma Doniu iliii 4 MA H define poodud a lieioop i Smirgo 1 5 Po aie ae Pra leticon Sampe D 2 10 Pa Prod TeadioopC Saia 0 1 Pa Fpocl 1 L L 1 Teip iare 10 3 leioop E Sampe D TTT TTT TTT Iodioop FSamplelD 2 T TF CTTI PF tT fT id Torst clita You will notice that the results are displayed and or combined using a unique key called here Sample ID The grouping key Sample ID and other possible keys are described in this manual in the Creating a new product section on page 10 Starting the application By launching the application the following screen appears This is the main screen which is divided into 4 distinct sections Products Associated Procedures Templates and Settings Manage Table of Results 5 1 Page 6 of 6 TESTLOOP Your Personal Lab Assistant Products To create and define the products to be tested Associated Procedures Those procedures that will be used to test the products Templates and Settings To create templates of test procedures to define the machines and other software parameters Table of Results Where th
54. o zero the machine position at that point and then to allow the machine to move far enough in this case 50mm so that the sample breaks The Rupture and Events module will take care of stopping the test when the sample breaks Sample Information Ruptures and Events Results Test Sequences d Sequence Number af HE E i Sequence Type Ti Preload Conditionning Speed Control ConsolePosition ConsolePosition ee amie B Speed Units mm min mmjmin E Ultimate Limit Mo io B zt Limit Units mm mm Destination Control ConsoleForce P ConsolePasition l de U Ea i Destination Units bf imm z E action Next lt Return End i a Eor pape ge E l Hold Time Unit E E E Replay Sequence Number of Replays _ Page 24 of 24 TESTLOOP Your Personal Lab Assistant OSB B In the case of the IB test a single sequence is required where the machine will move to 20 mm which is plenty to separate the blocks Again the Rupture and Events will take care of Stopping the machine where the blocks separate The machine is stopped at the end for the Sample to be removed before returning the machine to Its original position Because the sample has expanded separated during the test the 2 holders would hit each other if returned then OSB Nail Pull The nail pull procedure will be the same as the IB except it will be pulled a bit longer to allow the nail to come out Agai
55. of the test Page 25 of 25 TESTLOOP Your Persona Lab Assistant 3rd TAB Rupture and Events By now you will have understood that the Test Sequences and Ruptures and Events module work together to control the steps of the test The Rupture and Events section is very useful While Test Sequences instruct the machine what to do itdoes not allow reacting or changing to unpredictable phenomena when they occur Rupture which is an event and other events can be monitored during a test and a specific action can be taken when they hit Here is an overview of the Rupture and Events tab Sample Information Test Sequences Ruptures and Events Results Rupture and Events gt Pe Order Reference 9s 2 Detection Channel LM60Force LM60Force Trigger Type Becomes greater Drops by relative Si Trigger Yale 50 5a Trigger Units _ e E a E Reaction Activate next check Return end of test Bit or Sequence Number Add automatic rupture detection You can program as many events as you want and they are all being monitored at once The most useful event is the rupture event and it will be used to describe the use of this module Here is how it looks once the Add automatic rupture detection is depressed Rupture and Events Order Reference 1 2 Detection Channel 112 Force JJ Force Trigger Type Becomes greater Drops by relative Trigger Value 50 50
56. oment N Stiffness capacity Nm REPORT Ear EE rerorr 438 15 18 32 114 30 3357 013 839 654 15536 500 33595 032 438 15 18 92 114 30 3461 985 796 863 17089 000 34512 784 438 30 17 85 114 30 4205 004 927 129 18475 323 33583 805 438 20 18 50 114 30 3838 268 898 369 18114 567 35458 233 438 15 17 50 114 30 4117 412 868 601 17388 000 29892 317 438 15 18 14 114 30 4184 284 943 624 18986 500 35561 120 436 15 17 84 114 30 3081 529 913 489 13524 000 32483 579 438 15 17 84 114 30 4176 834 916 582 18331 000 33434 250 438 15 18 00 114 30 3657 612 864 768 16341 500 32048 764 438 15 17 85 114 30 3892 092 853 241 17100 500 31515 100 438 15 18 00 114 30 3781 163 928 664 16893 500 35430 6873 438 15 18 78 114 30 2811 508 724 852 438 15 17 97 114 30 4664 125 932 358 438 15 18 47 114 30 2742 886 746 572 438 15 17 51 114 30 5992 262 1036 710 438 15 18 33 114 30 4313 934 860 886 438 15 18 65 114 30 4699 450 878 441 438 15 18 14 114 30 5127 078 984 151 438 15 18 87 114 30 3290 646 751 298 436 15 18 85 114 30 2966 696 775 044 438 15 114 30 877 489 AB 95 3t 99 E B eroe eon i 1 1 1 1 1 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 REPORT Once the results are displayed it is possible to group them up using identifiers as per ou
57. on Once the products and the test templates are created simply Select the product Select the test procedure and Test No menus or right click menus to get lost into All functions are available right from the windows which makes it very efficient and flowing Controls the testing machine based on the procedure s instructions You can create an infinite number of test procedures based on international standards or your own standards Extensive analysis of results with a multitude of points and calculations available All machine controls are available from either the machine s keypad the keyboard or the mouse Graphs and measured values are displayed in real time ata typical 50Hz Simultaneous sampling on all channels to a maximum of 200Hz for LM60 machines and 500Hz for LM 20 machines Dynamic table of results with automatic grouping by Sample ID User can create more grouping columns Flexible easy to use and complete Whether you are an experienced computer user or not or even new to testing software you will be able to get the benefits of TESTLOOP C quickly with its logical and simple presentation The parameters are easily accessible and presented in a logical order so you won t get lost in numerous menus and windows Testing procedures are associated with products and then fine tuned You are ready to test To identify the various measurements and calculations related to materials
58. orming test Flexural test JJ2 Resize Graph vit Export Edit Parameters Test Results Channel Force From fa To 10000 Units bF X AXIS Chann Position v From jo To fio Units mm Y This window announces at the top that you are in the Performing Test section with the name of the procedure being used in this case Flexural Test The graph is already scaled using the default values that have been programmed in the procedure and itis possible to change the scaling values and channel displayed by using controls in the Y Axis and X Axis sections to the right of the graph Channel Channel Force Position From i From fo To 10000 To fio Units Units IbF ror Starting a testis now very appropriate to show how easy itis to USE TESTLOOP Page 44 of 44 TESTLOOP Your Persona Lab Assistant Above the graph there is a toolbar related to actions performed on the graph itself bal ala To the right of the graph there is a section titled Graph First select the product Then click on the Graph for the procedure you wish to use This will be used to display the graph number with the possibility of showing or not showing the graph in the graph window Explanation on the use of this feature will follow when the testing procedure is described On the top right corner the Resize Graph button allows you to use the whole page to display the graph
59. ption which can now be more specific to the product being tested Moving the mouse pointer over the field will display the whole text The reference to the Standard can also be changed but NOT the machine setup As for the procedure itself only the Test Type and Test Direction cannot be changed You can literally edit everything else add remove or edit Test Sequences add remove or edit Events and add remove or edit Test Results la b EN Page 42 of42 integrat Da TESTLOOP Your Personal Lab Assistant Please refer to the configuration of a test in Templates and Settings for more information on how to setup a test NOTE If you are to remove a Test Sequence or and Event itis BETTER to check if there are any results associated with them and remove them first Each procedure associated with a product can be edited adjusted the same way See below Associated Procedures Templates and Settings Procedure New test compaction3 a Manage Add Edit Delete 13 mm X Edit A y compaction4 Edit i Elongation Nail Pull Edit 7 Rupture This will take you to the test screen shown in 6 3 6 3 The Performing Test Window This is the window for our flexural test If you are using an LM of LMD type of machine you will recognize the controller replica that will appear in the new window Page 43 of 43 TESTLOOP Your Persona Lab Assistant lt Perf
60. r example the In Test field shows really well this great possibility Now click on the column header hold and drag the mouse up to the shadowed space then release New lines have been thus created which will include the average of grouped items without considering zeroed values 7 2 Page 53 of 53 Products Associated Procedures Templates and Settings Add Edit Delete Procedure New test Tensile Compression N Metals Tensile Bord v Table of Results et Sample ID Span mm Thickness mm Width mm Mor psi Moe ksi Moment N Stiffness capacity N m REPORT mhtest 1 438 168 18 14 114 30 3796 726 871 636 17176 648 32890 412 g Intest 2 438 15 18 10 114 30 3665 781 869 350 16862 833 33412 2681 Si i 438 15 1814 11430 4184 284 943 624 18986 500 35561120 438 15 17 84 114 30 3081 529 913 489 13524 000 32483 579 438 15 17 84 114 30 4176 834 916 582 18331 000 33434 250 438 15 18 00 114 30 3657 612 864 768 16341 500 32048 764 438 15 17 85 114 30 3892 092 853 241 17100 500 31515 100 438 15 18 00 114 30 3761163 928 664 16893500 35430 873 438 15 18 78 114 30 2811 508 724 852 438 15 114 30 2742 886 746 572 In test 3 438 15 18 35 114 30 40059 342 1913 918 0 000 To remove the grouping simply put the column header back to the level of other headers Reports Two types of report are availabl
61. re 6 possibilities but only the ones available with your machine will be displayed _Machinename Position This is the typical speed control which Is a rate of displacement _Machinename Force This is a rate of loading _Machinename Deformation Through the use of an extensometer this is a rate of deforming _Machinename StrainP This is a rate of straining when no extensometer is present Machinename Stress This is a rate of stressing _ Machinename StressD Through the use of an extensometer this Is a true rate of straining Ultimate limit The ultimate limit is that limit in the control mode we do not want to exceed before reaching the destination For instance you may want to move at 100 mm min to a preload of 5N The machine is then moving at the given speed waiting to hit the 5N But if the sample is not loaded or is weaker than the specified preload the machine will never stop The ultimate limit allows you to add an extra value to monitor In this case you can specify not to move past 10 mm There are 2 important things to know about the ultimate limit 1 The units are those of the speed control channel i e if the speed is in mm min the ultimate limit units will be mm If the speed units are N s the ultimate limit units will be N 2 Ifthe ultimate limit hits e g is reached before the destination the machine will try to move on to the next sequence The ultimate limit is not an error but ano
62. rigin position 0 Toe In Rigidity This field is used to compensate for the machine load cell rigidity Every system flex to a certain degree When the machine crosshead displacement system is used to make calculations after a test e g modulus of elasticity offset yield etc the frame load cell flexion is taken into consideration since the displacement is measured at the motor not on the frame itself Itis possible to correct for such behaviour by entering the machine setup rigidity factor into this field Then the position at any given load will be corrected using this factor It is always possible to use or not use the rigidity factor After a test if you select to include the compensation or to remove it simply select the desired option in test parameters and click on calculate in test results The curve is adjusted and the results recalculate using or not using the factor Here are the settings for our examples OSB Flexural It is a 3 point bend test of a rectangular sample of B mm thickness x 15 mm width x 32 mm span Compression is positive since the crosshead will be moving down to apply the load and the graph axis has been setso that the live curve will be fully displayed in the graph window Page 18 of 18 TESTLOOP Your Persona Lab Assistant lt Templates and systems configuration Procedure Templates Device Setup List of Procedures Name Description Standard Device setup used Test Type Test D
63. s and the scaling factors during the test If you want those parameters to be changed permanently do it by clicking the Edit Parameters button The settings are on the first tab called Sample Information abu Page 5lof5l tat Note Do not open the Edit Parameters window during a test Do so prior to a test or after a testhas been completed 6 6 End of Test When the test has completed the Test Results window comes up again looking slightly different Showing in bold now are the test results only to bring your attention to them before any other action is taken The buttons at the bottom are also different Here is whatcan be done now The information entered previously can still be edited If you have made a mistake with the product direction the operator the Prod ID they can be edited right from this screen The sample dimensions can be edited as well but changing them affects the test results If you do change them make sure you click the Calculate button so that the results are adjusted accordingly Changing the units of the results and any of the results parameters using the Edit Parameters button may affect the test results Make sure you click the Calculate button after making a change to make sure the results are updated Pressing Next will SAVE this result and Start a new test immediately The data entered from the previous test will be pre entered automatically Make ch
64. sion best fit method Secant Mandatory The Secant ModulusP is the direct division of the Stress StrainP at any given point on the curve since it is referenced to zero StrainP TESTLOOP needs only the Channel Base and the Value AT Specify where you want to determine the Secant value at a given Force Stress Time Position or StrainP using these 3 fields Chord Mandatory The Chord Modulus is the direct calculation of delta Stress over delta StrainP no linear regression Channel Base Is required to establish the point 1 Start and point 2 Stop Force Stress Time Position or StrainP are all valid channels Value AT and Value unit are omitted Slope The slope is the same as the Elasticity but the Force Position is used instead This is actually the RIGIDITY of a material expressed in N mm Ibf in kgf cm etc Offset Mandatory The parameters for Offset should be the same as those for Elasticity The offset is the X value on the StrainP channel if the initial slope was drawn down to 0 on the Y axis ModulusD There are a few results under ModulusD and they are listed below All calculations in the following section are all based on the Deformation and or StrainD channels These results will only return values if a Deformation gauge is present and is being used such as an extensometer an LVDT etc E Modulusc Elasticity Secant Chord Slope Offset value Elasticity Mandator
65. t Remember that in our example the Prod ID was originally the automatic column created by TESTLOOP when the product was first created This is the main grouping denominator and all graphs for a given Sample ID are reloaded together and stored together because they form a unit that provides the final results the Mean and other statistics for a given batch Page 50 of 50 F Direction CD el Operator CD Production Date MB Mund Tr Direction Operator Production Date Cathy Ruel Prod ID Danielle Roberts Span mm Lucy Simon Thickness mm Mark Kingsley Width mm 114 3 NOTE lf you are using WinWedge with a bar code scanner your samples may be identified with a bar code Simply place the curser in the Prod ID field and scan the bar code The information will go directly in the field with NO mistake WinWedge will also do the same for the sample dimensions when used with callipers and gauges equipped with Comm ports Adjust your sample dimensions if required Before you go on notice also that the Graph window on the right has started to populate with the Sample counter and a check box already ticked This graph sample counter will be updated as you are testing Click on Start The machine will go through the test sequence reliably while your graph will be drawn live so that you can follow its progress You can use the Y Axis and X Axis controls to change the channels the unit
66. testing a lot of words are used and itcan become quite confusing attimes depending upon the industry you are active in Requirements To make sure you can utilize all the potential of your TESTLOOP C software please make sure your computer has the following resources Recommended computer system Pentium IV processor or equivalent running at 2 6 GHz 512 MB of RAM lfree COM port RS232 9 pin 115 kbauds 460 kbauds for LM 120 machines CD ROM for installation Windows 2000 Pro XP or XP Pro Separate video card with 28 MB of RAM noton board or shared video Monitor resolution of 1280 x 768 Please check with your I T that all TESTLOOP users are given lt lt Administrators gt gt rights on the PC where TESTLOOP is installed local computer This will ensure to be able to run the application properly 4 Page 4 of 4 TESTLOOP Your Personal Lab Assistant Minimum computer system Pentium Ill processor or equivalent running at 800 MHz or more 256 MB of RAM 1free COM port RS232 9 pin 15kbaud or 460 koauds for LM 120 machines CD ROM for installation Windows 2000 Pro XP or XP Pro Separate video card with 28 MB of RAM noton board or shared video Monitor resolution of 1024 x 768 Please note If your computer does not meet the minimum suggested above we might not be able to support your software Software installation The installation of TESTLOOP will install the following 3 components
67. the Force Sample area and the formula varies for other types of test but it is still based on the Sample size geometry A stress channel is detected and the measurements will be accurate if the Sample Information tab is filled out properly in the test procedure If you are not concerned with the stress you may choose not to display it The type of units for stress is Pressure and you can set the default units The invert in compression rule should follow that of the force StrainD StrainD is a calculation It is the ration of the change of form from the original form expressed as a ratio or as a percentage of change ratio x 100 The StrainD is established using a deformation gauge extensometer LVDTs etc and the calculation is one using the gauge length field in the Sample information tab StrainD calculation AD Gauge Length or the appropriate formula based on the test type StrainD will appear every time a deformation gauge Is detected StrainD uses Dim Dim type of dimension and the units can be strain ratio or strain ratio x 100 Channel inversion should follow that of the deformation channel Other channels created SpeedP SpeedF SoeedD and Command These channels will be used mainly for detection In load control for instance itis possible to detect if the load is yielding by looking at the Command or SpeedP if the value increases it means the machine is compensating be
68. ther monitoring parameter Destination control Destination value Destination units Here you can specify what destination you want your machine to reach The possible destination channels are if the channels are present see above _Machinename Position To attain a specific crosshead position Machinename Force To reach a given load Machinename Deformation To reach a given deformation Machinename StrainP To reach a given strain based on machine position and parallel length Machinename Stress To reach a given stress or strength Machinename StressD To reach a given strain based on deformation and gauge length Action Once the destination is reached what do you want to do Here are the possibilities Next Automatically TESTLOOP looks if there is another stage to follow It you don t want to perform any other action than to move on to the next stage select this option Page 22 of 22 TESTLOOP Your Personal Lab Assistant Maintain destination This selection will hold the machine at the given destination If the destination is a load the machine will apply any movement required to make sure the load is held The destination can be maintained for the duration specified in hold time Hold position The machine stops and will keep that position for the duration specified in Hold time Stop End Stops the machine This is the end of the test This function is useful w
69. to test From then on you have the possibility to select required aggregate details The average and deviations are selected by default Note that other aggregate functions are also available such as Minimum Maximum Number of results and the Minimum maximum range Page 56 of 56 ine To make your report look professional TESTLOOP offers the possibility to insert the logo of your company which will appear centered at the top of each page of the report lt Reports S AGDARIBINS amp Bal gt gt e gt BERAOB SampleID F 3 Moe ksi Mor psi 899 3801 840 3357 797 3462 927 4205 898 3838 869 4117 944 4184 3082 4177 3658 3892 3781 2812 4664 2743 5992 4314 4699 5127 3291 2967 4186 3686 3915 Printed on 2006 02 28 16 40 50 Page 1 of 1 Rix 95 M 191 Ready LAB INTEGRATION INC 2576 Dunwin Drive Unit 6 Mississauga ON L5L5P6 tel 905 607 4385 Fax 905 607 7015 1888 244 0737 www lab integration com info lab integration com Copyright 2004 2006 Lab integration Inc Tesloop is a trademark of LAB INTEGRATION INC
70. umeric For entries such as values and quantities in numbers If units are associated with this field indicate them in the name such as Grammage g mY Date Will be used for automatic insertion of the test date It will be possible to change the date if you wanted the date to be the production date and if itwas tested a few days after Note Do not set the Data type of Sample ID to a date format even if you renamed it If all you wanted was to record the date set your Sample ID as a string and define your own date format when it s being entered prior to a test such as 2005 09 15 or 15SEP2005 This is the only field where you should not use Visible It will be used to display or not display the column in the table of results OSB Our OSB manufacturer wants to test their 13 mm board When the sample board is put aside it has a special number which will become our Sample ID renamed here Prod ID They also want to record the date of the test the direction of the board being tested and the operator Here is what the window would look like lt Add New product Product Name Description Name Visible Proc ID Y Test Date Direction Save and Close Cancel and Close Page B of B TESTLOOP Your Personal Lab Assistant The direction of the board is a repetitive field which will log whether the board was tested in the machine MD or cross machine direction CD
71. y The ModulusD of Elasticity is the initial slope of the Stress StrainD curve It is also called the Young s Modulus or MOE This is the region where the material exhibits elastic behaviour so if itis unloaded while in this area it will return to its original state The best method to determine the ModulusD of Elasticity is to use the Force as the Channel Base and to specify the Start and the Stop in PERCENTAGE units If you specify Percentage rather than absolute units N lof TESTLOOP will know you mean the Percentage of the Maximum Force It could also be determined between 2 Force values 2 Stress values 2 Time limits 2 Position values 2 StrainP values 2 Deformation values or 2 StrainD values Between the 2 values specified the ModulusD of Elasticity is calculated using the linear regression best fit method Page 38 of 38 TESTLOOP Your Personal Lab Assistant Secant Mandatory The Secant ModulusD is the direct division of the Stress StrainD at any given point on the curve since it is referenced to zero StrainD TESTLOOP needs only the Channel Base and the Value AT Specify where you want to determine the Secant value at a given Force Stress Time Position StrainP Deformation or StrainD using these 3 fields Chord Mandatory The Chord Modulus is the direct calculation of A Stress over A StrainD no linear regression Channel Base is required to establish the point 1 Start and point 2 Stop
72. your machine Here are the settings 0 1 2 4 4 16 6 50 8 85 1 2 3 8 5 32 7 10 9 100 Pressing 1 10 of maximum speed pressing 2 20 of maximum speed 3 30 of maximum speed ETC Press any number and watch the jog speed indicator on the right side of the display automatically change to the equivalent percentage You can also type in directly the speed you want your machine to go to Click once in the jog speed box The number will come on Type the desired speed in and use the arrows Itis thatsimple Page 48 of 48 Pressing the Up or Down arrow on the interface with the mouse on your computer will move the crosshead in the direction you are pressing It will move at the speed you have set for as long as you hold the button When you release the button the machine stops Important The Unit in this field will be the same as the one you have selected under Destination Value Directly at the bottom of the numbers the dot key on your interface has been converted to a Go to zero Zero key Pressing the dot key on the interface or Go to Zero key on the computer will bring your machine back to the zero Position g The key remains the same meaning that you may fine tune your position at a very low speed in either direction with using the digipoti digital potentiometer only If required click on the key and turn the Digipot

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TESTLOOP™-C User Manual