Home

UT Series Manual - Larson Systems Inc.

1. e 47 5 3 How to Use Memory Save Retrieve E H Mode 48 5 3 1 How to save the C rrent ANg cig ere ee Aa AA 48 5 3 2 How to Retrieve Previously Saved Settings aaa AANGAL 48 5 3 3 How to Clear the Current Se TGS 2ccicdscncattedseenntenccctecsatesenedecccstaseecindeuainceceetesacasaeadeeetdaaacsaesacs 48 6 0 SOT asta yn II E E E 49 6 1 The Sort TANGERE LAPAG Ac 51 ARMA AAA o o E 51 01 2 TISSU OI e odio AA case eae eee eed AA AN 51 E PP AA AN 51 6 1 4 Terminate aNG AANGAL AA 51 O dior RP eer ee eee ERR er Ce rer eer corre ree 51 6 1 6 Flap Condition amahan aaa TATANTANAN 51 6 2 How t Entera Sorn Table AA 53 6 3 How to Set the Sort OptiONS oocccccccoconcncnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnrnrennrnnnninncans 54 6 4 How to Enter the Sorting Test Specifications La aaa ti es 55 6 5 How to Save and Retrieve the Sort Table Kaman AKA AA ABA 57 6 6 Howto Start the Sort TeSt AA AA APA AA 58 lii Table of Contents continued asaan kanaba ANAN NENG ndn Page 6 7 How to Clear the Sort Table and Save the Sort Options ssssssssssss 59 6 8 ETS Occur While ONG etc 59 Sa Ba 0 to Disable SOI KA 59 7 0 Maintenance Calibration and Diagnostics 11 a 60 7 1 Maintenance EM 60 Ta did Dust COVEN na ii 60 zo vas AUN El ANAN AA AANI 60 Pl DUE Protector ci iui AA 60 71 4 Fuse eee er eee ere eee eer ee eer eee ee er cee re eee ieee reer ere rere eee eee re tree
2. Larson Systems Inc S Lengt Delay Tolerance Force Cycles Rate Test Point Shift Key LED Indicator 3 3 Data Panel continued 3 3 3 Individual LED Indicator Lights See figure below The display panel has a number of single LED indicator lights which verify the various functions and operations selected during programming Some lights are single function indicators while others are dual function The single function lights are listed below The functions for each of these lights are defined in section 3 3 4 F L L F Rate Preset F L or I T Peak Force Pause Delay Offset Bad Good Indicates Force at Length measurement Indicates Length at Force measurement Indicates Spring Rate force unit length Indicates the Preset function Indicates Free Length or Initial Tension Indicates the Peak Force Indicates a pause step in a program Indicates a delay step in a program Indicates a zero Force or Length at a selected point Indicates at least one bad Test Point Indicates all Test Points are good The dual function lights are listed below The functions for each of these lights are defined in section 3 3 4 Mode Located to the right of the Mode key Selecting Test mode turns the light ON while select ing Program mode turns it OFF Incremental and Absolute Located to the right of the Mode light Selecting Incremental turns the lamp ON while selecting Absolute turns it OFF Extension a
3. Enter 10000 and press ENT 10000 appears in the Cycles entry S Length Delay Tolerance Force Cycles Rate Test Point Y n m r The display changes and an 04 appears in the Test Point entry Test Point 04 is ready to be entered Repeat steps 3 6 for Test Point 04 Force Length After repeating steps 3 6 an 05 appears in the Test Point entry Test Point 05 is ready to be entered Repeat steps 8 and 9 for Test Point 05 Positoning Move After repeating steps 8 and 9 an 06 appears in the Test Point entry Test Point 06 is ready to be entered This example continues on the next page qa 95 4 10 18 19 20 21 22 23 24 25 26 21 28 29 36 Fatigue Test continued Repeat steps 11 14 for Test Point 06 Preset Cycle After repeating steps 11 14 an 07 appears in the Test Point entry Test Point 07 is ready to be entered Repeat steps 3 6 for Test Point 07 Force Length After repeating steps 3 6 an 08 appears in the Test Point entry Test Point 08 is ready to be entered For the final Positioning Move Test Point 08 enter 3 0 length entry then press ENT 3 0000 appears in the Length entry and the Force entry flashes ie Enter 99999 force value then press ENT TWICE This tells the Tester to do a Positioning Move which will move the upper platfrom to 3 0000 in Press the lt OPT gt key
4. Mode Global Parameters are entered in the E P mode where E P means Enter Parameter Global Parameters are set in the Test mode and affect all tests The tables on the facing page list the EP Index and Data Numbers and their associated functions for the various Global Parameters The following steps explain how to enter the Global Parameters 1 Press the lt Mode gt key so that the Mode light is ON indicating the Test mode 2 Press the lt 7 key E P Enter Parameter appears in the LED Display and a zero flashes The Tester is waiting for an EP number 3 Enter the four digit EP number For example the EP number for the print format is 1234 To enter this number press 1234 then press lt Ent gt 4 Two more numbers illuminate on the LED Display The Index Number is on the left The Data Number is on the right Tester is in E P E P 1234 mode is displayed N N AY Ki L Belay ma Tolerance Force Cycles Rate J J Index Number Data Number 5 Press the lt Ent gt key to scroll through the Index Numbers To continue the above example pressing the lt Ent gt key will scroll through Index Numbers 0 1 and 2 6 The Data Number is the flashing number This number represents the data associated with the dis played Index Number 7 To continue the above example press the Ent key until the Index Number shows 000 The D
5. The following steps will be performed when this method is used Please note that in step 1 the upper platform may stop as much as 0 050 inches BELOW the Free Length This may damage some very short springs If this is objectionable use the method described in section 3 10 2 1 The upper platform goes down at a moderate speed measuring the force at small intervals When two consecutive force measurements are unequal i e one zero force and one non zero force the upper platform stops 2 The upper platform then goes up at a slow speed measuring the force at small intervals When two consecutive force measurements are the same i e zero the upper platform stops 3 The upper platform then goes down again at a very slow speed stopping when it reads the zero force from step 1 The length at this point is the Free Length of the spring 3 10 2 Start BELOW the Free Length This method is a little more complicated than the previous method However the advantage is that there is less overall travel for the upper platform which will allow for faster testing Also this method may be more suitable for some very short springs that may be damaged by the method described in section 3 10 1 To start below the Free Length slowly adjust the upper platform using the jog switch until it is at least 0 005 in below the estimated Free Length Then run the Free Length Test section 4 2 The following steps will be performed when this method is used
6. E O Enter Option appears in the LED Display and a zero flashes The Tester is waiting for an EO number Enter 4 then press Ent Enters the Programmed Abort Option The Data Number lower right flashes 000 Enter 1 then press Ent Turns on the Programmed Abort Option Speed Leng Delay Tolerance Force Cycles Rate Test Point n T P Condition gt Press the lt OPT gt key TWICE Exits Options function and returns to Program mode Press the lt Mode gt key The Mode light is ON indicating the Test mode Press the appropriate Jog Button so that the Length display is greater than 2 5000 Place the test spring on the lower platform Press lt 0 gt to tare or zero the Force Press the Start Test Button For Test Point 01 Force Length The upper platform will lower to 1 500 in The display will BRIEFLY show the Length to be 1 5000 the Force will show 21 905 and the Tolerance will show 4 8 The Good light will be ON an S will appear indicating the Test Spring was within specification Speed Length Delay Tolerance Force Cycles Rate E Test Point 4 10 Fatigue Test continued 30 31 32 33 34 For Test Point 02 Positioning Move The upper platform will position itself to 2 0000 in The display will BRIEFLY show the Length to be 2 0000 The Force and Tolerance readings have no significance in
7. P mode Enter 4085 then press lt ENT gt Enter 0 then press lt ENt gt Turns off the Shunt Calibration Press lt gt TWICE to exit the E P mode Returns the Tester to test mode na a A 9 N gt 6l 7 3 Verifying Calibration continued 7 3 2 Using a Calibrated Spring The chart below will be used as an example to explain the method using a calibrated spring The information listed is the length and force data for a calibrated spring with a range of 0 10 Ibs The tolerance listed at the bottom of the chart refers to the length measurements This particular spring would be useful to check the calibration of the 11 Ib Load Cell To verify the calibration using this method the user would first select a calibrated spring that would cover the range of the Load Cell in use The user would then enter the data corresponding to that particular calibrated spring into the Universal Tester Finally the user would run the test described below If all ten Test Points pass the calibration check within the spring s tolerance limit then the Tester is still calibrated However if ANY of the test points fall outside the tolerance limit then the Tester must be recalibrated The procedure is detailed below 2 7564 2 5624 2 3673 2 1701 1 9716 1 7728 1 5871 1 4088 1 2365 1 0650 Press 0 to tare or zero the Force Press the lt Mode gt key so that the Mode light is OFF indicating
8. appears in the LED Display and a zero flashes The Tester is waiting for an EO number Enter the EO number for the Sort Table which is 100 To enter this number press 100 then lt ENT gt Tester is in E O 100 E O mode is displayed ay A S Leng Delay Tolerance Force Cycles Rate E Test Point Index Number Condition Test Point or or Flap Terminate Three more numbers illuminate on the LED Display The Index Number is on the left Press the lt ENT gt key to scroll through the Index Numbers The number in the bottom right corner flashes This number has a dual function and can be either the Test Point or the Terminate To enter a value simply enter the number then press lt ENT gt For example pressing s15 then ENT enters the number 01 Next the number above the Test Point Terminate flashes This number also has a dual function and can be either the Condition or the Flap To enter a value simply enter the number then press lt ENT gt For example pressing 1 then ENT enters the number 001 The display then automatically scrolls to Index Number 001 To enter the data for the next Index Number go to step 5 When all of the information for the Data Table has been entered press the OPT key TWICE This will return the Tester to the Program mode 99 6 3 How to Set the Sort Options Once the Sort Tab
9. Measurement Units The measurement unit s LEDs will change to reflect the user s selec tion To select one of the Other combinations of units Ib mm nt in g in kg in oz in or oz mm the user must select Other using the Shift 7 keystrokes both LED s OFF The user must then set up the Other Measurement Units parameter to select the desired force length units See section 5 1 4 16 3 4 Initialization Initialization establishes a reference point for Force and Length measurements After Start up the Universal Tester is ina temporary manual operating mode for initializing the Tester The initialization procedure must be performed before beginning any tests The initialization for Compression must be performed before Exten sion However initialization for Extension need not be performed if the Tester is only being used for Compres sion testing During initialization the Tester resets to a 10 force at zero length For Compression testing the Tester resets by lowering the upper platform and touching the lower platform with a 10 force applied For Exten sion testing the user must attach two hooks to the platforms and adjust the upper platform until the two hooks are coupled The Tester then resets by raising the upper platform until the two hooks touch with 10 force applied Step by step procedures for initialization are detailed in section 4 1 for Compression and section 4 11 for Extension 3 5 Manual
10. Please review section 4 0 How to Operate Your Tester and section 5 0 Setting Global Parameters Options and Memory Functions The procedure to set up a Sort test is summarized in table 6 0 below The steps include setting up the Sort Table setting the three Sorter options entering the Sorting Test Specifications saving the Sort Information and testing the springs Table 6 0 Procedure to Set Up a Sort Test EO 100 Enter the Sort table sections 6 1 6 2 EO 01 O Set the Flap option section 6 3 EO 02 Set the Sorter Plunger Enable Disable option section 6 3 Prom mode Ener tne Sorina Ten Spectre cocine e 1 mode Save Na Sor Iman 1o a menor hes n09 EC TF 49 6 0 Sorter continued 6 1 The Sort Table The Sort Table is a summary of the desired sorting steps and is similar to a written computer program A Sort Table must be drawn up for each sort procedure Table 6 1 is an example of a Sort Table Each of the new terms used in the Sort Table are defined below 6 1 1 Index Number The index number defines each line on the Sort Table similar to a line in a written computer program Up to 50 lines can be programmed Index Numbers 000 049 Each line on the Sort Table consists of a pair of numbers which are either the Test Point Condition pair or the Terminate Flap pair Note The Test Point is always paired with the Condition and the Terminate is always paired with
11. Sorting or RS 232 Command not enabled RS 232 device not detected RS 232 timeout ee Program Mode Illegal key pressed in length offset Fe 8 0 System Error Codes continued 42 Program Mode Attempting to insert test point when at the max allowed Program Mode Attempting to delete a blank test point Fe Program Mode Memory locations full O a Program Mode RS 232 Memory locations write protected DEM 60 Program Mode Length specified is tess tran zeo 61 Program Mode Lengih specified is greater than max 62 Program Mode Specified force is less than alowed 65 Program Mode Specified fore is greater than alowed 68 Program Mode Rate test points motvald 69 Program Mode Rate test points are the same 72 Program Mode Preset or delay are less than zero 73 Program Mode Force or length not specified for preset command Initial tension is either less than zero program Mode length or greater than half length scale pe Trying to exit program mode Programi Mone with no test loaded RS 232 Inbound RS 232 communication improperly recieved Recieved XG Command Sum check incorrect when sending Roars RS 232 with sum check values po 86 RS 232 RS 232 command not recognized Working Limits Platform below lower limit O a Working Limits Platform above upper limit 4 l 90 RS 232 EP number not found ft y 91 RS
12. 1 The upper platform goes up at a slow speed measuring the force at small intervals When two consecu tive force measurements are the same i e zero the upper platform stops 2 The upper platform then goes down at a very slow speed stopping when it reads the first zero force from the previous step The length at this point is the Free Length of the spring 19 3 11 Initial Tension Function Tension springs are made with a force applied to the spring while it is being wound The initial tension for a spring is the force required to overcome this intrinsic force present in the spring The coils of the spring will separate once this force is overcome The Initial Tension function determines this force An example of this method is described in Section 4 11 Initial Tension Test The spring to be tested must first be placed on hooks between the two platforms and there must be no tension zero force on the spring Also a Length L must be entered The default value is 0 1 in The following steps will be performed when this method is used 1 The upper platform goes up at a moderate speed measuring the force at small intervals When two consecutive force measurements are unequal i e one zero force and one non zero force the upper platform stops 2 The upper platform then goes down at a slow speed measuring the force at small intervals When two consecutive force measurements are the same i e zero the upper platform stop
13. 5 Enter 12 0 force value then press ENT 12 000 appears in the Force entry and the Tolerance entry flashes Larson Systems Inc Speed Delay Tolerance Cycles 28 4 7 Conditional Force Length with Tolerance Test continued 6 Enter 8 0 the tolerance in percent 8 0 appears in the Tolerance entry The tolerance value in percent must be between 0 01 and 99 9 Larson Systems Inc Speed Delay Tolerance Cycles 7 Press ENT The Length entry flashes 00000 indicating that the Tester accepted the data Press the Mode key The Mode light is ON indicating the Test mode Press the appropriate Jog Button so that the Length display is greater than 2 5000 Place the Test Spring on the lower platform Press 0 to tare or zero the Force 10 Press the Start Test Button The upper platform lowers to 2 0000 in After the test is complete the platform returns to the starting position 11 The Force obtained at the specified Length is displayed The Length will show 2 0000 and the Force will show 12 451 The Tolerance is displayed as a percentage of error The Tolerance will show 3 8 The Good light will be ON and an S will appear indicating the Test Spring was within specification Larson Systems Inc Speed Length Delay Tolerance Force Cycles Rate e Test Point 12 Since the Tolerance was within specification the G
14. Table section 6 1 There are 300 Memory Save Retrieve heading locations The Universal Tester can also store up to 1320 test points which can be divided up into the 300 memory settings This arrangement provides on average between 4 and 5 Test Points per memory heading The Memory Save Retreive functions are performed in the Program mode The procedure is detailed below 5 3 1 How to Save the Current Settings 1 Press the Mode key so that the Mode light is OFF indicating the Program mode 2 Press the Save key E H appears in the LED Display and a zero appears in the upper right corner The E H stands for Enter Heading which is short for Enter Memory Heading Location 3 Enter a number between 1 and 299 The number is displayed in the upper right corner of the LED Display Tester is asking the Memory Heading user to Enter Heading Location 23 bcm N M S Belay HEN Tolerance Force Cycles Rate 4 Press ENT to complete the procedure The Tester returns to the Program mode 5 3 2 How to Retrieve Previously Saved Settings 1 Press the Mode key so that the Mode light is OFF indicating Program mode 2 Pressthe Retrieve key 3 Enter the Memory Heading Location a number between 1 and 299 4 Press the lt ENT gt key to complete the procedure Tester returns to Program mode 5 3 3 How to Clear the Current Settings This proced
15. Wait until the Length display reads 0 0000 The Tester is initialized for Length in the Extension mode 12 Carefully press the SLOW DOWN Jog Button so that the hooks can be uncoupled The upper platform lowers so that the hooks can be uncoupled 13 With the hook in the reverse up position press the SLOW UP Jog Button until the hooks are apart The Length display displays the distance between the two hooks 14 Press lt 0 gt The Force shows a near zero value The Force has been tared 39 4 12 Initial Tension Test Extension Mode Tension springs are made with a force applied to the spring while it is being wound The initial tension for a spring is the force required to overcome this intrinsic force present in the spring The coils of the spring will separate once this force is overcome The Initial Tension function determines this force Exercise 4 9 Power Up and Initialization Extension Mode must be performed before this exercise is at tempted The Tester must first be initialized for Extension Testing 5 10 11 40 Press the Mode key so that the Mode light is OFF indicating the Program mode Press Retrieve then press ENT Clears the previous test specifications Press Shift then press 4 lt Ext Cmp gt Extension Compression function Switches from Compres sion to Extension mode The Extension Compression light is ON indicating Extension mode Press Shift
16. buttons 2 up and 2 down Upper and lower platforms Interchangeable Load Cell One Load Cell is included with the order Length measurement accuracy of 0 001 with a 0 0004 resolution e Force measurement accuracy of 0 1 of the selected load range e Selectable measurement units Force at length measurement e Length at force measurement e Programmable force and length Multiple test points e Test point commands Jump to Insert and Delete Tare weight capability Manual and programmable abort feature to stop a test in mid test e LED light emitting diode information screen and LED indicator lights e Auto Load Ranging Automatically switches load range at 20 of full scale The lower range of O 20 has ten times the resolution as the upper range 1 3 Options The following optional hardware items are also available through LSI e Printer and connecting cable with printer buffer for faster testing Guide pins and rods to protect from buckling springs e Calibrated Load Cell weight kit and force meter N I S T traceable e Extension cable and calibration manual High resolution length scale 0 0001 inch resolution 0 0005 inch accuracy e Extension hooks 100 Ib 500 Ib and 1000 Ib capacity for extension testing Wire clamping fixtures e Foot Switch for hands free operation automation interface required e Dust Cover 1 4 List of Software Features The following chart lists the var
17. computer or other data collection system through the Tester s RS 232 port The Tester has a built in computer that stores the current test data and the statistical summary information from each test cycle at the end of each test series Printing test data from the Tester to the printer eliminates manual data entry and data entry errors and provides a hard copy for com parison reference and storage Data from the Tester may also be collected onto a computer with Windows 95 98 operating system The LSI Universal Testing Manager UTM program software available from LSI is required for data collection on the computer The user can download test data for storage retrieval and statistical analysis The user can also retrieve test parameters for faster set up and standardized testing procedures RS 232 port Audible alert Automation port Serial Printer connection Universal Tester 2 4 Printer Installation The printer is packaged independently of the Tester Place the printer next to the Tester or in a convenient spot in close proximity to the Tester Connect the printer to the Tester by connecting the interface cable from the serial connection on the printer to the RS 232 port on the Tester as shown in the figure on the previous page Connect the printer to an appropriate outlet 110 or 220 VAC using the power cord 2 41 Operational Controls The following are the basic operational controls for the printer For m
18. display will show 23 000 25 4 5 Solid Length Test Solid Length is the minimum length of a spring and is at the point where the coils touch The Solid Length test is similar to the Length Force test To runa Solid Length test select a Force large enough so that the coils touch but not too large as to cause the coils to misalign This example will use a Force of 75 Ibs The Universal Tester comes equipped with overload stops so that me chanical damage to the Load Cell will not occur if too large of a Force is selected ke Solid Height 0 6610 in 1 Press the Mode key so that the Mode light is OFF indicating the Program mode 2 Press lt Retrieve gt then lt ENT gt Clears the previ ous test specifications 3 Press Shift then press 9 lt L F gt the Length at Force function The L F light is ON and the Length Force entry flashes 0 0000 4 Enter 75 0 force value then press lt ENT gt 75 000 appears in the Force entry and the Length entry Force flashes 24 Rate 5 Press the Mode key The Mode light is ON indi cating the Test mode 6 Pressthe appropriate Jog Button so that the Length display is greater than 2 5000 Place the Test Spring on the lower platform Press 0 to tare or zero the Force 7 Press the Start Test Button The upper platform lowers until the spring reaches the specified force 75 000 Ibs At this point t
19. failures during the previous steps the Tester must be repaired by an LSI service technician Please note the specific failures when calling LSI as this will help the service technician quickly diagnose the problem LSI may be contacted between 8 00 AM and 4 30 PM Central Time at 763 780 2131 67 8 0 System Error Codes 68 4 Testin Force requested with offset 9 is greater than allowed force Timer failed at start up Master Board 3 Ja Attempting to jog in direction 9 of force when past full scale Tesing Jog Forceovefead Testing Jog Attempting to jog beyond max length boo 0 6 Printing Erorin calculating springrate Analog 7 Powerup Memory chip checksum error temer Boar Board 8 3 Manual Mode Tare is past full scale Initializin Attempting to initialize with more 9 than 10 applied force Ram Check Failed Master Board Manual Testing Trying to start test with interlock open Fe Testing Jog Interlock enabled while jogging Fe Manual Mode Load cell ID not found in E squared Fe Manual Mode Attempting a test with invalid specs Po Manual Mode Attempting a function that is not enabled os 29 EP EP or EO number not found Program Mode 30 Program Mode Invalid memory location or RS 232 EP number greater than 300 31 Program Mode EP or EO number less than 0 RS 232 or entry less than min allowed Memory location is greater than Program Moca allowed but less than 300 DL 36 Program Mode Printing
20. fan filter located on top of the data panel prevents dust from entering the data panel At a minimum the fan filter should be replaced quarterly If the Universal Tester is in a high particulate atmosphere the fan filter should be replaced more often Replace with LSI part no 011 4000 09 7 1 3 Surge Protector Since microcomputer components are sensitive to power line high voltage transients and IF noise consider installing a power conditioning noise filter and voltage spike protector Such as Radio Shack IF Filter Spike Protector Part No 61 2785 for trouble free operation 7 1 4 Fuse When necessary replace the power fuse located in the back of the Tester behind the cover plate in the lower left corner The replacement fuse must be a 5 amp Slo Blo fuse Littelfuse 313005 or equal If the fuse burns out frequently notify LSI 7 2 Calibration Keeping the Universal Tester calibrated is very important LSI recommends that every Tester be cali brated on a regular basis The frequency of calibration is largely dependent on use and operating conditions Heavy usage and adverse operating conditions require more frequent calibration Initial calibra tion should occur after three to six months of use If no calibration adjustments are required the period can be extended A one year calibration interval is typical 7 2 1 On Site Calibration Service LSI technicians can provide calibration and a general checkup of your Universal Tester at y
21. force reading after power up may indicate an over stressed Load Cell Jog amp Length Check Using the Jog Buttons move the upper platform up and down several inches several times Drive Check Start Buttons Initialize the Tester by pressing the Start Test Button Notice that the Tester s upper platform should come down and contact the lower platform for several seconds then the upper platform should rapidly rise to 2 0000 inches The Lenth display should show 2 0000 inches 7 4 Diagnostics continued 9 Length Check Carefully jog the upper platform down SLOWLY until it makes contact with the lower platform apply a slight load and notice the display length should read zero 001 inches Gauge blocks may also be used to verify the length 10 Keypad Check Press the lt Mode gt key then press lt 7 gt lt 8 gt lt 9 gt lt Shift gt Next press lt CLR gt then press lt 4 gt lt 5 gt lt 6 gt lt OPT gt Next press lt CLR gt then press lt 1 gt lt 2 gt lt 3 gt lt PRT gt Next press lt CLR gt then press s15 lt ENT gt Finally press lt Retrieve gt s05 lt ENT gt then press lt Save gt s05 lt ENT gt These steps verifiy the operation of the keypad 11 Return to Test Mode Press 1 ENT Mode to return to the Test mode If each of the previous steps were performed without incident the Universal Tester system is functioning according to LSI s specifications If there were
22. length value then press lt ENT gt 1 5000 appears in the Length entry and the Force entry flashes no 5 Enter 23 0 force value then press ENT 23 000 appears in the Force entry and the Tolerance entry flashes 6 Enter 10 0 tolerance value then press lt ENT gt 10 00 appears in the Tolerance entry Sor yee S Delay Tolerance Cycles Leng Force Rate Test Point 7 The display changes and an 02 appears in the Test Point entry Test Point 02 is ready to be entered 34 4 10 10 11 12 13 14 15 16 17 Fatigue Test continued Enter 2 0 length value then press lt ENT gt 2 0000 appears in the Length entry and the Force entry flashes a Enter 99999 force value then press lt ENT gt TWICE This tells the Tester to do a Positioning Move which will move the upper platform to 2 0000 in oe Speed Length Delay Tolerance Force Cycles Rate Test Point The display changes and an 03 appears in the Test Point entry Test Point 03 is ready to be entered Press Shift then 6 lt Preset gt function The Preset light is ON and the Force entry flashes E Press ENT The Length entry flashes Skips over the Force entry and allows a Length entry Enter 1 5 and press ENT 1 5000 appears in the Length entry and the Cycles entry flashes 000
23. the Flap 6 1 2 Test Point The test point is the condition that is being evaluated For example a test point might involve measuring the force of a spring when compressed to 2 inches The default value is O Up to 1320 test points may be entered into the Tester 6 1 3 Condition Once a test point has been evaluated there are six conditions that can describe the results of the Test Point The default setting is OO 00 Default 01 Satisfactory 02 Bad Low 03 Bad High 04 Not Satisfactory Bad Low or Bad High 05 Not Low Satisfactory or Bad High 06 Not High Satisfactory or Bad Low 6 1 4 Terminate The value for the terminate is always 00 and signals the last line in a flap condition See section 6 1 6 for the definition of flap condition 6 1 5 Flap The flap refers to the particular flap on the Sorter The default flap is OO which means no flaps are actuated 6 1 6 Flap Condition A flap condition includes one or more Test Point Condition pairs plus one Terminate Flap pair After the Universal Tester tests a spring the Sort Table is checked If all the test point conditions compare the same as those for a given flap condition then the specified flap is actuated When a flap condition is found to be true no other flap conditions will be checked If all of the flap conditions are false then the default flap OO is actuated This means that no flaps will be
24. the platform down in the Slow speed Down Fast Press to move the platform down in the Fast speed Manual Abort The Jog Buttons can also abort the programmed test that is currently running The user may do this by pressing one of the Jog Buttons This action will immediately stop the test at the current Test Point 11 3 3 Data Panel continued 3 3 2 LED Display The LED Display is a large 3 in x 5 in black display that has six red LED Light Emitting Diode clusters for an easy read out of programming parameters and test conditions The figure below shows the LED Display along with the Shift Key LED Indicator The Shift Key LED Indicator tells the user if the lt Shift gt key has been pressed In the Program mode the LED Display will flash either zeros or dashes The zeros indicate that a numerical input is required The dashes indicate that a numerical entry is optional and the user may pass to the next entry The six clusters are identified by the titles around the LED Display The clusters are defined as follows 12 Length Distance of the upper platform above the lower platform Force Rate Load Cell Force and Spring Rate force unit length Test Point Programmed Test Point being evaluated Tolerance Cycles Specified Tolerance or of cycles for preset testing Speed Delay Upper platform speed or programmed time delay T P Condition Evaluation of Test Point being measured H Bad High L Bad Low S Satisfactory
25. then press 2 F L or 1 T gt the Free Length or Initial Tension function The F L or I T light is ON The Length entry flashes 0 1000 The Tester automatically sets the default length for the Initial Tension test which is 0 1000 in Force Rate Press ENT Sets the Length to the default value of 0 1000 in The user may enter any length L This example uses the default value of 0 1000 in The length L is used to calculate the initial tension Force Rate Press the Mode key The Mode light is ON indicating the Test mode Press the appropriate Jog Button so that the spring can be attached to the two hooks without any tension applied to the spring Press 0 to tare or zero the Force Press the Start Test Button The upper platform adjusts until the spring is at zero Force The upper platform goes up and stops at the length L 0 1000 in in this example and the Force is read 4 12 Initial Tension Test Extension Mode continued 12 The upper platform goes up and stops at the length 2L 0 2000 in in this example and the Force is read tp PA L 2 0 100 in 2L 0 200 in Cm L Step 10 Step 11 Force is Step 12 Force Spring at measured at is measured at zero Force Length L Length 2L 13 The Initial Tension is calculated by extrapolating backwards f
26. this step S Lengt Delay Tolerance Force Cycles Rate e Test Point For Test Point 03 Preset Cycle The Length will show 1 5000 and the upper platform will preset the spring to 1 5 in 10 000 times The Preset Cycles will counted Preset Cycle S Leng Count Delay iam a Tolerance Force Cycles Rate e Test Point k The Tester will immediately continue where For Test Point 04 Force Length Step 29 will be repeated For Test Point 05 Positioning Move Step 30 will be repeated For Test Point 06 Preset Cycle Step 31 will be repeated For Test Point 07 Force Length Step 29 will be repeated For Test Point 08 Positioning Move Step 30 will be repeated except that the upper platform will position itself to 3 0000 in Since the Tolerance was in spec for Test Points 01 04 and 07 the Force Length tests the Good light was ON and the S was displayed The S actually resembles a 5 If the Tolerance was out of spec for any of the three Test Points 01 04 or 07 then the Bad light would be ON An H indicating high out of spec or an L indicating low out of spec would be displayed Also the Tester would stop at the out of spec Test Point and display that Test Point s results For example if the Tolerance was in spec for Test Points 01 but not for Test Point 04 then the Tester would stop at Test Point 04 and display the results After the test is complete
27. 02 23 00 Ib 1 500 in EN Spring Rate 22 00 Ib in Press the Mode key so that the Mode light is OFF indicating the Program mode Press Retrieve then ENT Clears the previous test specifications An 01 appears in the Test Point entry indicating Test Point 01 is ready to be entered Press Shift then press 8 lt F L gt the Force at Length function The F L light is ON and the Length entry flashes 0 0000 Enter 2 0 length value then press ENT 2 0000 appears in the Length entry and the Force entry flashes i Press ENT again An 02 appears in the Test Point entry indicating Test Point 02 is ready to be entered The Length entry flashes 0 0000 Enter 1 5 length value then press ENT 1 5000 appears in the Length entry and the Force entry flashes ya Press lt ENT gt again An 03 appears in the Test Point entry indicating Test Point 03 is ready to be entered The Length entry flashes 0 0000 Press lt Shift gt then press 5 Rate function The Rate light is ON and POO flashes in the upper left corner The Tester is waiting for the first point of rate calculation to be entered 4 9 Two Point Force Length with Spring Rate Test continued 12 13 14 15 16 17 18 19 20 21 22 Press 1 then press ENT PO1 appears POO flashes in the u
28. 232 RS 232 request for force or length from wrong mode Free length time out perg 96 Testing Test stopped by user with jog switch 69 9 0 Warranty Information The LSI testing system parts and labor are warranted against defects in material and work manship to the consumer for a period of one year from the date of purchase This warranty covers all parts except consumable items It applies only to machines and accessories which have been installed and operated in accordance with instructions in our reference manuals have not been tampered with in any way misused suffered damage through accident neglect or conditions beyond our control and have been serviced only by authorized personnel Larson Systems Inc is not responsible for loss in operating performance due to environmental conditions such as humidity dust corrosive chemicals deposition of oil or other foreign matter spillage or other condi tions beyond our control There are no other warranties expressed or implied and Larson Systems Inc shall not be liable under any circumstances for incidental or consequential damage Procedure for warranty service 1 Request an RMA number from Larson Systems Inc 2 Ship the tester freight prepaid to LARSON SYSTEMS INC 10073 Baltimore Street NE Note Any shipment Minneapolis MN 55449 4425 sent freight collect Phone 763 780 2131 will be rejected Fax 763 780 2182 3 Warranty determination will be ma
29. 4 3 3 Data Panel continued 3 3 4 Key Pad continued Ext Cmp lt shift gt lt 4 gt The Extension Compression function switches between the Extension and Com pression modes The default mode is Compression Rate lt shift gt lt 5 gt The Rate key is used in the Program mode This key will tell the Tester to calculate the Spring Rate force unit length See section 4 9 Two Point Conditional Force Length and Spring Rate Test for an example of the use of this function Preset lt shift gt lt 6 gt The Preset key is used in Program mode This key allows the user to program a number of continuing strokes in a test program See section 4 6 Preset Multiple Cycles Test for an example of the use of this function Jump to TP lt shift gt lt OPT gt This key allows the user to jump from one Test Point to another in the Program mode It is useful when editing an existing program Press the lt Jump to TP gt key then press the number of the desired Test Point Speed lt shift gt lt 1 gt The Speed key sets the speed of the upper platform The default setting is 15 0 in min To set the speed press the lt Speed gt key enter the desired speed within the range of 0 1 to 120 in min and press lt ENT gt The new speed will be displayed F L or I T lt shift gt lt 2 gt The Free Length or Initial Tension key is used in the Program mode This key will tell the Tester to determine the Free Length in a
30. Button The upper platform low ers to 2 0000 in the specified length After the test is complete the platform returns to the starting posi tion The force obtained at the specified length is displayed The length display will show 2 0000 and the Force display will show 12 000 Leng Force Rate 24 4 4 Length Force Test 3 Test Point 01 1 500 in 23 00 Ib 1 Press the Mode key so that the Mode light is OFF indicating the Program mode 2 Press lt Retrieve gt then lt ENT gt Clears the previ ous test specifications arson Systems Inc 3 Press Shift then press 9 lt L F gt the Length at Force function The L F light is ON and the Force entry flashes 0 0000 4 Enter23 0 force value then press lt ENT gt 23 000 appears in the Force entry and the Length entry flashes Es 5 Press the lt Mode gt key The Mode light is ON indi cating the Test mode 6 Press the appropriate Jog Button so that the Length display is greater than 2 5000 Place the Test Spring on the lower platform Press lt 0 gt to tare or zero the Force 7 Press the Start Test Button The upper platform low ers until the spring reaches the specified force 23 000 Ibs After the test is complete the platform returns to the starting position The length at the specified force is displayed The Length display will show 1 5000 and the Force
31. Compression Extension to be initialized The offset will be remembered between extension Initialization sae n se and compression tests The offset will also be stored with a test if the Memory Save Retrieve is used 4 14 Setting Working Limits Working Limits are software length limits that you can program so the test will stop if the length limit is reached Working limits can be set for all tests and once programmed are good for all test points in a test When a test is stored with the Memory Save Retrieve feature the Working Limits are saved with the test To set the Working Limits press the SHIFT key then the PRT Offset key This will bring you to the Offset screen The O displayed in the Test Point display the lower right display tells you that you are in the Offset screen Press the ENT key twice to scroll through the offsets you will not be adjusting these After you have pressed the ENT key twice you will be in the Working Limits screen You will see a L in the Test Point display The upper display Length is for the upper length limit and the lower display Force is for the lower length limit Enter a number for the Upper limit and press the ENT key to move to the lower limit or just press the ENT key to move to the lower limit Enter a number for the lower limit and press the ENT key or just press the ENT key to exit the Working Limits screen You may set either an upper limit or a lower limit but you do not have to se
32. Compression test or the Initial Tension in an Extension test See sections 4 2 Free Length Test and 4 12 Initial Tension Test for examples on the use of this function Peak Force lt shift gt lt 3 gt This key determines the Peak Force during a programmed test Delete TP lt shift gt lt CLR gt This key deletes the current Test Point in the Program mode Insert TP lt shift gt lt ENT gt This key is used to enter a Test Point in the Program mode Pause lt shift gt lt 0 gt This key enters a pause in the Program mode When a pause is encountered in a program the Tester will pause until the two Cycle Start Buttons are pressed Delay lt shift gt lt gt This key enters a delay up to 99 min in the Program mode When a delay is encountered the Tester will halt for the specified time then continue The delay is entered as a four digit number MMSS where MM minutes and SS seconds Offset lt shift gt lt PRT gt This key is used to specify an offset amount to be added to the initialization values for either Length or Force The default setting is zero Press the lt Offset gt key The current offset values will be displayed The Offset indicator lights turn on the Length display will flash and a O will appear in the Test Point display lower right Enter the Length Offset then press lt ENT gt Next the Force display will flash Enter the Force Offset then press lt ENT gt I
33. Heading 005 Press Mode to return to the Test mode Mode light is ON indicating Test mode To retrieve the programming steps press Mode Mode light is OFF indicating Program mode then Retrieve then 5 then Mode Mode light is ON indicating Test mode Place the Calibrated Spring on the lower platform and press s07 to zero the Force Press the Start Test Button The Tester will check the Length at the specified Force for all ten Test Points For each test point the Force Length and Tolerance is displayed After the test is complete press ENT to scroll through the displays for all ten Test Points If the Universal Tester is still properly calibrated the Good green light will be ON If the Tester was out of calibration then the Bad light would be ON Also an H indicating high out of spec or an L indicating low out of spec would be displayed for each individual test point that was out of spec If this is the case then the Tester must be recalibrated 63 7 3 Verifying Calibration continued 7 3 3 Using Gauge Blocks and Weights This method is the most thorough of the three verification meth ods and is carried out in three steps Deflection Length and Force Each step is detailed below The Spring Tester Calibration Package available from LSI is required when using this method The Calibration Table on the next page is used to record the results
34. IR 0 1 TIR 0 005 TIR 0 13 TIR 2 Ibs 11 Ibs 22 Ibs 110 Ibs 200 Ibs 550 Ibs 8 8 N 48 N 97 N 490 N 889 N 2 455 N 0 9 kg 4 9 kg 9 9 kg 50 kg 90 kg 250 kg em or e os 2 1 000 Ibs 2 000 Ibs 3 000 Ibs 10 000 Ibs 4448N 8 896N 13344N 44482N 88 965N Accuracy 453 kg 907 kg 1360 kg 4 535kg 9 071 kg Resolution x 2 Resolution is display limited to XXXX X 2 0 Initial Set Up 2 1 Unpacking Remove the unit carefully and check the contents with the enclosed packing list Confirm that all items ordered are received The warranty is in the User Manual Section 9 0 and has space to record the model designation serial number and the date of receipt of the Tester Make these entries at once 2 2 Setting Up the Tester Place the Universal Tester on a level and stable work area where the user can perform the testing in a comfortable manner The lower platform should be at a height to allow ease in loading testing and removing testable items and the displays should be easy to see The UT 25 and UT36 Testers must be leveled using a precision level placed on the base plate The leveling feet must have equal pressure The Universal Tester requires 1 5 amps of electrical power from a 50 60 Hz outlet The Tester will require a 110 volt or a 220 volt outlet depending on how the Tester was configured 2 3 Data Acquisition Data from the Universal Tester may be collected onto a printer a
35. Larson Systems Inc Loz UT User Manual Universal Testers UT 11 UT 24 UT 25 amp UT 36 August 2004 Part No 060 1000 0029 00M LARSON SYSTEMS INC UT 11 24 25 amp 36 SERIES UNIVERSAL TESTER User Manual LARSON SYSTEMS INCORPORATED 10073 Baltimore Street NE Minneapolis MN 55449 4425 This manual could contain technical inaccuracies or typographical errors Changes are periodically made to the information herein These changes will be incorporated in new editions of the manual COPYRIGHT 2004 Larson Systems Inc LSI All rights reserved No part of this manual may be reproduced by any means without written permis sion of the author except portions necessary for internal use only by the purchaser of the LSI system Table of Contents fee eee ne eee eee Page 1 0 About the Universal Tester System cccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeaeeseeeeeeeeeseeeeeeees 1 1 1 Description VV Matt Can do iaa aa 1 1 2 Standard Features gt M 2 SA OT 2 1 4 List of Software Features occccccccccccccnccnnnnonononononnnnnnnonnnonnnnnnnnnnnnnnnnnnnRnnnRnnnRRnnRnnnRnnnRnnnrnnnenrenerenninnss 3 19 Sale and Use OV SIS AO m 4 al EG dep es Ee TN Ea 4 1 5 2 Guide Pins and Guide Rods e 4 Lo MEU Stopping ii A 4 1 54 LEoad CellProtecion sia 4 10 SPSCIICALOMS AA LOTES 5 2 0 Initial Set Up PAA NA 6 A AA 6 2 2 Setti
36. Testing After Initialization the operator may conduct a manual test by simply inserting springs or other testable mate rial between the two platforms Pressing a Jog Button will move the upper platform which will apply a force and establish a length necessary to conduct the test The Force and Length are monitored on the LED Display for operator use Manual testing can be useful for single point tests or special laboratory develop ment tests The Force may be tared or zeroed in the Test mode Press the lt 0 gt key to zero the Force up to the load cell capacity Manual testing can only be performed in the Test mode The Universal Tester is in the Test mode immediately after the initialization To switch back into Test mode after being in Program mode see section 3 7 3 3 6 Programmed Testing The Universal Tester is designed for convenience in performing repeated tests or special one time tests Changing to the Program mode permits the user to input programmable information into the Tester See section 4 0 for specific examples of programming the Universal Tester Section 3 3 4 Key Pad also briefly explains each of the programmable functions 17 3 7 Test Mode and Program Mode After Start up the Universal Tester is in a temporary manual operating mode for initializing the Tester To change the operating mode simply press the Mode key The Tester System has two operating modes Test and Program 3 7 1 Test Mode is for initi
37. actuated 51 6 1 The Sort Table continued Table 6 1 Example of a Sort Table Flap 000 01 003 if TP 01 is Bad High 03 Condition A 001 00 001 then actuate Flap 01 01 Flap 004 if TP 01 is Not Satisfactory 04 and Condition B 01 002 if TP 01 is Bad Low 02 00 002 then actuate Flap 02 Flap 005 01 001 if TP 01 is satisfactory 01 Condition C 006 00 000 then actuate Flap 00 or ooj End of Sort Table The example in table 6 1 will be discussed step by step This example is for a spring that is tested at one test point TP 01 After the Universal Tester tests the spring the computer compares the results in order to determine how the Sorter flaps should be actuated which will allow the spring to be placed into the proper bin Please note that the Sort Table example is written with more commands than is needed This was done to adequately explain the concept of the Sort Table Flap Condition A Index Nunbers 000 and 001 is a test for flap 01 If the result of the test is a Bad High 03 result then Flap Condition A is true and then flap 01 will be actuated If the testis false then Flap Condition A is false and the computer moves on to Flap Condition B Flap Condition B Index Numbers 002 003 and 004 is a test for flap 02 Flap Condition B is also an example of a compound test i e more than one test point condition pair This means that Test Point 01 must be both Not Satisfacto
38. alization calibration manual operation and starting a programmed test This mode is signified by the Mode light being ON and by the Force and Length entries on the LED Display being displayed 3 7 2 Program Mode is for entering specifications to set up a repeatable program The Program mode is signified by the Mode light being OFF and one or more of the LED Display entries flashing on and off In programming mode the display will flash either zeros or dashes The zeros indicate that a numerical input is required The dashes indicate that a numerical entry is optional and the user may pass to the next entry 3 7 3 Switching Between Test Mode and Program Mode When switching between Test mode and Program mode it is sometimes necessary to enter a value for the length This step is necessary immediately after initialization and is also necessary if the previous test specifications have been cleared The following steps show how to switch between Test and Program modes under these circumstances 1 Make sure the Mode light is ON indicating the Test mode 2 Press the lt Mode gt key Enters the Program mode 3 Press lt Retrieve gt then lt Ent gt Clears the test specifications 4 Press lt 1 gt then lt ENT gt Enters a value of 1 for the Length 5 Press Mode Returns to Test mode 3 8 Printing Results When the printer is connected and turned on as described in section 2 4 it can provide a record of the tes
39. and 20 100 of full capacities 20 bit internal force resolution Deflection Compensation Load cell amp frame 3 1 5 Safety and Use Considerations Caution A compressed or extended spring has stored potential energy Use care to release this energy in a controlled manner to avoid possible injury 1 5 1 Eye Protection The operator must wear eye protection when near or using the Universal Tester An exception can be made when a guard is used to confine the spring to the test machine area 1 5 2 Starting and Stopping The Universal Tester has a start test button located on the data panel To start each automatic test press the start test button The Tester also has a Start and Emergency Stop Button Start Stop Button Turning the switch clockwise will turn on the power to the Tester Pressing the button turns off power which stops the drive motor and extinguishes the LED Display and all indicator lights Caution If the upper platform is applying force on a test spring when the Uni versal Tester is turned off the Tester s upper platform remains in its current position This action can cause a hazard particularly if the test spring is in high tension Make certain the face shield is installed on the Tester 1 5 3 Guide Pins and Guide Rods LSI STRONGLY RECOMMENDS the use of the guide pins or the guide rod for any springs that may have a tendency to buckle or collapse during testing Without the guide pins or guide r
40. ata Number is flashing 000 8 Press 0 then press Ent The Tester accepted the entry 0 for Index Number 000 This entry tells the Tester to print the specifications The Tester then automatically scrolls to Index Number 001 9 Press the lt gt key To continue the above example this entry tells the Tester that the user is finished modifying the Print parameters The Index and Data numbers disappear and a flashing O appears The user may now enter another EP number 10 To enter a new EP number and modify its data go to step 3 11 Press lt gt to exit the Global Parameters function This will return the Tester to the Test mode 43 5 1 How To Set Global Parameters E P Mode continued 5 1 1 Printing Tells the tester how to print the test information 1234 0000 0 print the specification Test Specs 1 do not print the specification 001 0 print headings on all pages Test Results 1 do not print the results 2 99 print headings on first page only 100 120 time delay after 10 data points 100 0 0 seconds 101 0 1 seconds gt gt gt incr 0 1 second for each Data Number lt lt lt 120 2 0 seconds 002 0 print headings on all pages Test Summary 1 do nat print the summary 2 99 print headings on first page only 5 1 2 Shunt Calibration Turns the internal shunt calibration on and off 4085 0000 0 shunt resistor off
41. atform Press 0 to tare or zero the Force Press the Start Test Button The Test Point numbers appear for both Test Points The Length obtained at the specified Force is displayed for both Test Points The Tolerance is displayed as a percentage of error For Test Point 01 The Length will show 2 0954 the Force will show 12 000 and the Tolerance will show 4 8 The Good light will be lit and an S will appear indicating the Test Spring was within specification For Test Point 02 The Length will show 1 4587 the Force will show 23 000 and the Tolerance will show 2 8 The Good light will be ON an S will appear indicating the Test Spring was within specification S Leng Delay Tolerance Force Cycles Rate Test Point Since the Tolerance was within specification for BOTH test points the Good light was ON and the S was displayed The S actually resembles a 5 If the tolerance was out of specification for EITHER test point then the Bad light would be ON An H indicating high out of spec or an L indicating low out of spec would be displayed for each test point that was out of spec After the test is complete press lt ENT gt to scroll through the displays for both test points 31 4 9 Two Point Force Length with Spring Rate Test gt O SS 10 11 22 Test Point 01 12 00 lb 2 000 in Test Point
42. bination of weights on the lower platform to obtain a force of 90 of the Load Cell s maximum force Record the Force reading in line L Calculate the error by subtracting the Force reading from the actual weight Enter the error in line L Remove the weights from the lower platform The procedure to verify the calibration using gauge blocks and weights is complete UT model C7 UT Load Cell max weight gt 2 0 1000 in 2 2 5096 max length 7596 max length Max length 0 5 in ws og x KO y JA ona AN Completed by 2 L EE ws 65 7 4 Diagnostics The purpose of this section is to provide a few simple diagnostic instructions These instructions will help the user assess any problems with the Universal Tester before calling the LSI service technician The following instructions cover the User Interface Start Up Sequence and allow the user to diagnose any problems with the use of the Display Panel Key Pad Jog Switch Display Screen and LED Lights These diagnostic steps can be performed without the use of any tools and without disassembling the Universal Tester Any additional problems should be diagnosed and fixed by the LSI service technician User Interface Start Up Sequence The following is a list of what to expect during a normal start up pro cess Turn the red Start Stop Button clockwise to activate the power The fan should spin up to speed indicating that power is pres
43. connectors are fully disengaged lift the Load Cell and remove it from the Tester Store the Load Cell in a suitable protective place Load Cell Main Frame connector connector 2 5 2 Load Cell Installation 1 Place the Load Cell on the base of the Tester with the Load Cell connector lined up with the main frame connector Exercise care and slide the Load Cell toward the main frame so that the connectors are fully engaged and the Load Cell is snug against the main frame Install the top two large cap screws then the lower two or four large cap screws and tighten until the bolts are snug First tighten the TOP TWO cap screws to 10 ft Ib torque using a torque wrench Do not over tighten Next tighten the BOTTOM TWO or four cap screws to 10 ft Ib torque using a torque wrench Do not over tighten 9 3 0 Features and Controls 3 1 Start Stop Button The figure below shows the location of the red Start and Emergency Stop Start Stop button Turn the Start Stop button clockwise to turn on the power The fan starting and a self test of the Data Screen and the LED lights verify power to the Tester During the start up procedure the Tester goes through a self diagnostic test of the computer RAM program memory Data Screen LED lights and the audible alert The Diagnostic Manual explains all of the internal tests that occur during start up For best results the Tester should be energized for about 30 minutes to ensure stabili
44. d press lt ENT gt 1 5000 appears in the Length entry and the Cycles entry flashes 000 Enter 5 and press ENT 5 appears in the Cycles entry 8 An 02 appears in the Test Point entry Test Point 02 is ready to be entered The Length entry flashes 0 0000 9 Press the lt Mode gt key The Mode light is ON indicating the Test mode 10 Press the appropriate Jog Button so that the Length display is greater than 2 5000 Place the Test Spring on the lower platform Press lt 0 gt to tare or zero the Force 11 Press the Start Test Button 12 The Length will show 1 5000 and the upper platform will preset the spring to 1 5000 in five times Leng Force Rate Test Point 2i 4 7 Conditional Force Length with Tolerance Test The 8 tolerance means that an acceptable E force at 2 000 in would be between 11 04 Ib and 12 96 lb Test Point 01 12 00 Ib 8 2 000 in 1 Press the lt Mode gt key so that the Mode light is OFF indicating the Program mode 2 Press Retrieve then ENT Clears the previous test specifications Press Shift then press 8 lt F L gt the Force at Length function The F L light is ON and the Length entry flashes 0 0000 4 Enter 2 0 length value then press ENT 2 0000 appears in the Length entry and the Force entry flashes Speed Delay Tolerance Cycles
45. de at the factory Warranty service will be processed promptly 4 The tester will be returned freight prepaid per LSI s current shipping procedures On site warranty repair service is available at a minimal cost The customer is responsible for the travel expenses incurred On site warranty repair service is only available within the continental U S A Model Designation Serial Number Date of Receipt 70 USE Larson Systems Inc 10073 Baltimore Street NE Minneapolis MN 55449 4425 www larsonsystems com 763 780 2131 1 877 780 2131 Fax 763 780 2182 info larsonsystems com pm VISA
46. during and after the fa tigue test This example first subjects the spring to a Force Length test 23 00 Ibs 10 at 1 500 in The 10 Tolerance means that an acceptable Force at 1 500 in would be between 20 7 lbs and 25 3 Ibs The upper platform is then positioned using the Posi tioning Move to reset the upper platform to 2 000 in The spring is then preset 10 000 times After the Preset Cycle the spring is subjected to the Force Length test again Test Points 02 amp 05 Positioning Move 2 000 in M E Test Points 03 amp 06 Preset to 1 500 in 10 000 x Test Points 01 04 amp 07 Force Length 23 00 Ib 10 1 500 in The Programmed Abort feature will be turned on so if the Force at 1 500 in is not within the specified Tolerance the Tester will stop the test The Positioning Move 10 000 cycle Preset Cycle and Force Length test are repeated to complete fatigue test One final Positioning Move allows the spring to be removed from between the platforms 1 Press the Mode key so that the Mode light is OFF indicating the Program mode 2 Press lt Retrieve gt then lt ENT gt Clears the previous test specifications An 01 appears in the Test Point entry Test Point 01 is ready to be entered 3 Press Shift then press 8 lt F L gt the Force at Length function The F L light is ON and the Length entry flashes 0 0000 4 Enter 1 5
47. ecessary periodic calibrations 7 3 1 Shunt Calibration The Universal Tester has a standard force approximately 85 of the Load Cell s full scale hard wired into the computer s circuitry When the Shunt Calibration is turned on the LED will display the Shunt Calibration force If this displayed force does not closely match the original Shunt Calibra tion force recorded on the calibration certificate then the Tester is out of calibration This simple test makes verifying the calibration very easy The procedure for the Shunt Calibration method is detailed below Press 0 to tare or zero the Force Press the lt Mode gt key so that the Mode light is ON indicating the Test mode Press the lt gt key Enters the E P mode Enter 4085 then press lt ENT gt 4085 is the four digit EP number for the shunt calibration Enter 2 then press lt ENT gt Turns on the Shunt Calibration Press lt gt TWICE to exit the E P mode Returns the Tester to test mode The LED Display shows the Shunt Calibration force in the Force display Compare the displayed value to the Shunt Calibration force recorded on the calibration certificate m um BI He m A noo If the displayed value is outside the specified range recorded on the calibration certificate then the Tester must be recalibrated Refer to the UT Calibration Manual e Press the lt gt key Enters the E
48. ent The following is what the user will see 1 2 66 Lights All lights including the LED s will flash then go blank Master Board Memory Check Anumber will be displayed in the lower right corner of the display This number will increment with each internal test performed The numbers will count from O through 10 Software versions 30 2 and older will count to 7 Software versions 30 3 through 30 5 will count to 9 Software versions 30 6 to present will count to 10 Display Check Next all lights will light up for about half a second then the display will shut down from left to right showing all lighting elements followed by the lights on the front panel which will flash mo mentarily to show that they are operational Software Version Check Next the internal software version will be displayed in the upper right corner of the display for 3 seconds This feature is only on software versions 30 6 to present Pre Initialize Check The display should now have 3 sections flashing just zeros and the force display should read a force close to zero assuming no force is currently being applied Force Check Press down on the lower platform and release to confirm that the force displayed increases then returns to zero Next lift on the lower platform and release to confirm that the force displayed decreases then returns to zero Record the value of the no load force then zero the force by pressing O Note A high
49. erable until the alarm condition is corrected 2 4 4 Printer Ribbon Replacement Turn off the power and remove the access cover remove the used Ribbon Cartridge and replace with a new one Replace the access cover and turn on the printer 2 5 Changing the Load Cell Note Before changing the Load Cell power down the Tester by pressing the Start Stop Button The Load Cell is located on the front of the Tester under the lower platform A variety of Load Cells ranging from 2 Ib to 20 000 Ib capacity are available from LSI The Load Cell is held in place on the Tester with four or six large cap screws The numerous small cap screws hold the Load Cell together Each Load Cell is a complete assembly and it is unnecessary to disassemble the unit to change to a different load rating Locations of the four capscrews 2 5 Changing the Load Cell continued 2 5 1 Load Cell Removal 1 2 First remove the large cap screws that hold the Load Cell onto the BASE the Tester Next remove the large cap screws that hold the Load Cell to the rear VERTICAL SUPPORT MEMBER Exercise care and slide the Load Cell forward and away from the vertical support member to disconnect the Load Cell connector Note Exercise care when removing the Load Cell The Cell can scratch the surface of the base which could cause possible errors in parallelism measure ments for subsequent re installed Load Cells After the Load Cell and main frame
50. ero value for the Force Delay Flashing E s Tolerance Cycles Warning The display must show flashing EEEEE for Extension mode initial ization not flashing 00000 for Compression mode initialization Initializing the Tester in Compression mode with the hooks attached to the platforms can damage the Tester and Load Cell 7 Press the appropriate Jog Button until the platforms are at least 3 inches apart This action will separate the platforms to allow enough room for the Extension Hooks to be attached 38 4 11 Power Up and Initialization Extension Mode continued 8 Attach the Extension Hooks Screw the small hook into the lower platform Screw the large hook into the upper platform by swinging the hook into the up position Tighten by hand Do not over tighten Ep Small Hook Large Hook Large Hook Large Hook for lower platform down position up position reverse up position for upper platform for upper platform for upper platform 9 With the hook in the reverse up position turn the Jog Switch counterclockwise to lower the upper platform so that the two hooks can be coupled The hooks should only be coupled not touching 4 E Coupled Hooks Use care when lowering the upper platform so that the hooks do not press onto each other with force 10 Press the Start Test Button The upper platform raises until the two hooks touch 11
51. et the Sorter Delay Option EO 103 10 Press 5 then lt ENT gt Tells the Tester to set a 0 5 second delay between the time the plunger is deactivated and the time the flaps are deactivated o o uo m 11 Press lt OPT gt The Tester accepts that entry An E O appears in the LED Display 12 Press lt OPT gt again to exit the Options function This will return the Tester to the Program mode 54 6 4 How to Enter the Sorting Test Specifications The Sorting Test Specifications are the values of Length Force Tolerance and or Rate that are entered into the Universal Tester s memory The Tester compares this information with the springs that are tested to decide how the test springs should be sorted The example that will be used in this this case will be the Conditional Force at Length Test with Tolerance Test This test is also detailed in section 4 7 The specif ics of this test and the procedure for entering the data into the Tester are listed below Conditional Force Length with Tolerance Test The 8 tolerance means that an acceptable force at 2 000 in would be between 11 04 Ib and 12 96 lb Test Point 01 12 00 Ib 8 2 000 in 1 Press the Mode key so that the Mode light is OFF indicating the Program mode Press lt Retrieve gt then lt ENT gt Clears the previous test specifications Press Shift then press 8 lt F L gt the Force at Length function The F L lig
52. ey is used 1 2 3 to retrieve programming steps See section 5 3 2 for more information on the use of this key DeleteTP Pause Delay Inc Abs OPT The Option key is used to introduce individual test specifications and sorting options See section 5 2 for more information on the use of this key Insert TP Save vere V iev PRT The Print key actuates the printer to print the display ENT or the entered specifications See sections 3 8 and 5 1 1 for more information on printing Memory CLR The Clear key clears the previous entry ENT The Enter key enters the displayed value into the program memory and advances through the program steps in the Program mode This key also advances through the Test Points of a programed test immediately after the test has run Measurement Units lt shift gt lt 7 gt The default setting is pounds and inches Ibs in See sections 5 1 3 and 5 1 4 to review or change the Measurement Units F L lt shift gt lt 8 gt The Force at Length key is used in the Program mode This key will tell the Tester to display a force at a particular spring length See section 4 3 Force at Length Test for an example of the use of this function L F lt shift gt lt 9 gt The Length at Force key is used in the Program mode This key will tell the Tester to display the spring length at a particular force See section 4 4 Length at Force Test for an example of the use of this function 1
53. ghout this section 1 2 58 Place the Test Spring on the lower platform Press 0 to tare or zero the Force Press the Start Test Button The upper platform lowers to 2 0000 in After the test is complete the platform returns to the starting position The force obtained at the specified length is BRIEFLY displayed The Length will show 2 0000 and the Force will show 12 451 The tolerance is displayed as a percentage of error The Tolerance will show 3 8 The Good light will be ON and an S will appear indicating the Test Spring was within specification S Length Delay This screen will be BRIEFLY displayed Tene Force Cycles Rate X Test Point TO Since the tolerance was within specification the Good light was ON and an S was displayed The S actually resembles a 5 If the tolerance was out of specification then the Bad light would be ON An H indicating high out of spec or an L indicating low out of spec would be displayed After the test is complete the LED display will change and display the Flap Number which is the same as the Bin Number The user should then deposit the spring into the designated bin The spring order 1 2 3 etc will also be displayed Bin Number Flap Number Force Rate Spring Order first spring in the series to be tested Test Point TD Pandaian Press the lt ENT gt key to disp
54. he user should watch the spring and determine if the coils touched but did not misalign 8 Afterthe test is complete the platform returns to the starting position The length at the specified force is displayed The Length display will show 0 6610 and the Force display will show 75 000 9 If the coils touch but do not misalign then the user may accept the displayed length as the Solid Height If the coils do not touch then the test should be re peated with a larger force If the coils misalign then the test should be repeated with a smaller force Leng Force Rate 26 4 6 Preset Multiple Cycles Test The Preset test is typically used on new springs to condition them be fore running a Force at Length or a Length at Force test The Tester can be programmed to preset to either Force or Length This example shows how to preset to a Length Preset to 1 500 in 5 1 Press the lt Mode gt key so that the Mode light is OFF indicating the Program mode 2 Press lt Retrieve gt then lt ENT gt Clears the previous test specifications 3 An 01 appears in the Test Point entry Test Point 01 is ready to be entered 4 Press lt Shift gt then lt 6 gt lt Preset gt function The Preset light is ON and the Force entry flashes 2 5 Press lt ENT gt The Length entry flashes Skips over the Force entry and allows a Length entry Enter 1 5 an
55. ht is OFF indicating the Program mode 2 Press the Save key E H appears in the LED Display and a zero appears in the upper right corner The E H stands for Enter Heading which is short for Memory Heading Location 3 Enter a number between 1 and 299 The number is displayed in the upper right corner of the LED Display Tester is asking the Memory Heading user to Enter Heading Location 23 Speed Leng Delay Tolerance Force Cycles Rate x Test Point 4 Press ENT to complete the procedure The Tester returns to the Program mode 6 5 2 How to Retreive a Previously Saved Sort Information 1 Press the Mode key so that the Mode light is OFF indicating the Program mode 2 Press the Retrieve key 3 Enter the Memory Heading Location a number between 1 and 299 4 Press ENT to complete the procedure The Tester returns to the Program mode 57 6 6 How to Start the Sort Test After the Sort Table Sort Options and Sort Test Specifications have been entered and after the Sorting Infor mation has been saved the Tester is ready to sort springs If sorting springs using the mechanical sorter refer to the Automated Testing System Operator s Manual part no 60 1000 035 for detailed information on using the automated Sorter with the Universal Tester If sorting springs manually use the procedure below This procedure continues with the same example cited throu
56. ht is ON and the Length entry flashes 0 0000 4 Enter 2 0 length value then press ENT 2 0000 appears in the Length entry and the Force entry Delay Tolerance Cycles 55 6 4 How to Enter the Sorting Test Specifications continued 5 Enter 12 0 force value then press ENT 12 000 appears in the Force entry and the Toler ance entry flashes Larson Systems Inc Speed Delay Tolerance Cycles 6 Enter 8 0 the tolerance value 8 0 appears in the Tolerance entry The tolerance value in percent must be between 0 01 and 99 9 Speed Delay Tolerance Cycles 7 Press lt ENT gt The Length entry flashes 00000 indicating that the Tester accepted the data 8 Press the Mode key The Mode light is ON indicating Test mode 56 6 5 How to Save and Retrieve the Sort Information The Sort Table and the Sort Options are saved together with the Sorting Test Specifications This Sorting Information is saved to and retrieved from the Tester s memory in the same way as described in section 5 4 How to Use Memory Save Retrieve To review the functions are performed in the Program mode and the procedure is detailed below Note Saving sort information will reduce the memory available to other Save Retreive specifications 6 5 1 How to Save the Current Sort Information 1 Press the Mode key so that the Mode lig
57. ion function The F L or I T light is ON arson Systems Inc 4 Press the Mode key The Mode light is ON indicating the Test mode 5 Pressthe appropriate Jog button so that the Length display is greater than 2 5000 Place the Test Spring on the lower platform Press s07 to tare or zero the Force arson Systems Inc 6 Press the Start Test Button The upper platform lowers until the spring is at its Free Length length at zero force The Length reading on the LED Display will show 2 5000 in the Free Length 29 4 3 Force Length Test Test Point 01 12 00 Ib 2 000 in a 1 Press the Mode key so that the Mode light is OFF indicating the Program mode 2 Press lt Retrieve gt then lt ENT gt Clears the previ ous test specifications arson Systems Inc 3 Press Shift then press 8 lt F L gt the Force at Length function The F L light is ON and the Length entry flashes 0 0000 Leng 4 Enter 2 0 length value then press lt ENT gt 2 0000 appears in the Length entry and the Force entry flashes Ng 5 Press the lt Mode gt key The Mode light is ON indi cating the Test mode Force Rate 6 Press the appropriate Jog Button so that the Length display is greater than 2 5000 Place the Test Spring on the lower platform Press s07 to tare or zero arson Systems Inc the Force 7 Press the Start Test
58. ious features in each of the five optional software packages that are available from LSI B Bronze S Silver G1 Gold 1 G2 Gold 2 P Platinum Thru Rod Test buckling springs up to 1 3 8 and 6 1 8 inch diameters on some models Jog Switch Five position for accurate length positioning Manual Testing Mode Select desired test lengths and forces Compression Testing Perform compression tests per user defined specifications Manual Abort Manually stop a test in mid test Programmed Abort Stop a programmed test in mid test based on tolerance of a particular test point Extension Testing Perform pull tests per user defined specifications Force Length Offset Program desired force length offset during test Speed 0 15 in min with full force capacity or 0 120 in min w reduced force capacity Force Length Testing Measuring force at a given length Length Force Testing Measuring length at a given force Spring Multiple Rate Calculated between any two test points RS 232 Printing Data Communications Port to UTM PC package Presetting Scragging Exercise springs prior to testing Free Length Measurement Measure compression spring free length English Metric Units Select from Ib in N mm g in g mm or oz in Individual Conditional Testing Print display results as Good Bad High or Bad Low for each test point Push Button Zeroing Tare out loads up to load cell capacity Auto Load Ranging Auto shift between 0 20
59. lay the Length Force and Tolerance information Repeat the procedure for each spring that needs to be sorted 6 7 How to Clear the Sort Table but Save the Sort Options To clear the Sort Table but save the current Sort Options and Sort Specifications set the first Sort Table entry to O save the Sort Information to an unused Memory Heading Location then retrieve from that same loca tion 6 8 If Errors Occur While Sorting If an error occurs during a test the test point in error will be displayed at the end of the test and sorting will not be performed At this point the platform will stop If sorting springs using the mechanical Sorter the upper platform may be in the way of the plunger Refer to the Automated Testing System Operator s Manual part no 60 1000 035 for information on how to troubleshoot the Sorter when errors occur 6 9 How to Disable Sorting To disable Sorting set the Index entry to 000 and the Test Point entry to 00 59 7 0 Maintenance Calibration and Diagnostics 7 1 Maintenance 7 1 1 Dust Cover To ensure trouble free operation of the electronic components avoid exposing the Uni versal Tester to moisture heat corrosive elements or excessive dust Consider purchasing a dust cover available from LSI Part no 059 001 008 for the UT 11 series Part no 059 001 009 for the UT 24 Series 7 1 2 Fan Filter A fan inside the data panel circulates air to keep the electronics from overheating The
60. le has been entered into the tester and saved setting the Sort Specifications is the last step before starting a sort test This procedure is explained in section 5 2 How to Set Options but a specific example will be used here In this example the following options are to be set e Do not actuate any flaps if no flap conditions are found to be true EO 101 e Enable the plunger EO 102 e Seta 0 5 second delay between the time the plunger is deactivated and the time the flaps are deacti vated EO 103 The procedure to set these Sort Options is detailed below 1 Press Mode so that the Mode light is OFF indicating the Program mode 2 Press lt OPT gt E O appears in the LED Display 3 Press 101 then ENT to set the Sorter Default Flap Option EO101 4 Press O then ENT Tells the Tester to actuate no flaps if no flap conditions are found to be true Tester is in E O mode E O 101 is displayed IN Ng AY S Leng Delay Tolerance Force Cycles Rate a The 0 is entered here Press lt OPT gt The Tester accepts that entry An E O appears in the LED Display Press 102 then lt ENT gt to set the Sorter Plunger Enable Disable Option EO 102 Press 0 then lt ENT gt Tells the Tester to actuate the plunger as normal Press lt OPT gt The Tester accepts that entry An E O appears in the LED Display Press 103 then lt ENT gt to s
61. mbination of gauge blocks on the lower platform to obtain a length of 25 of the Tester s maximum length 5 Lower the upper platform until the Force reading is about 45 of the Load Cell s full scale Enter the length of the gauge blocks and the Length reading in line E 6 Calculate the error by subtracting the Length reading from the length of the gauge blocks and enter the error in line E 7 Repeat steps 4 6 for the following lengths and enter the results in the following lines of the Calibration Table Enter the results for 50 of the maximum length in line F Enter the results for 75 of the maximum length in line G Enter the results for the maximum length 0 5 in in line H o Raise the upper platform and remove the gauge blocks from the lower platform 9 Continue on to the next section Force 64 7 3 Verifying Calibration continued 7 3 3 Using Gauge Blocks and Weights continued Force 1 Leave the upper platform raised With no weight on the lower platform record the Force reading in line J 2 Calculate the error by subtracting the Force reading from the actual weight Enter the error in line J 3 Place the appropriate combination of weights on the lower platform to obtain a force of 45 of the Load Cell s maximum force Record the Force reading in line K Calculate the error by subtracting the Force reading from the actual weight Enter the error in line K Place the appropriate com
62. nc Abs lt shift gt lt gt The Incremental Absolute key is used in Program mode The Absolute setting is the default In the Absolute setting the present Test Point will be referenced relative to the initial setting i e zero Force and zero Length In the Incremental setting the present Test Point will be referenced relative to the previous Test Point If the first Test Point is an Incremental Test Point it will be measured relative to the starting Length and Force 15 3 3 Data Panel continued 3 3 5 Measurement Unit Indicators The Measurement Unit Indicators pictured on the right confirm the selection of force and length units Two side by side LEDs located to the left of the LED Display confirm the selection of force and length units The default setting is pounds and inches Ibs in O Ib in O e N mm g mm O O other O 0 The left LED ON indicates pounds and inches Ibs in the default setting The right LED ON indicates newtons and millimeters nt mm Both LEDs ON indicate grams and millime ters g mm Both LEDs OFF indicate one of the Other combination of units is designated Ib mm nt in g in kg in oz in or oz mm See section 5 1 4 sob The Universal Tester allows the operator to easily select Ib in nt mm or gm mm To select one of these three measurement units press the Mode key so that the Mode light is OFF Program mode Then press lt Shift gt then s75
63. nce using the Tester For more detailed descriptions of the features refer to Section 3 0 Features and Controls 4 1 Power Up and Initialization Compression Mode This exercise describes how to power up the Tester and how to initialize the unit for Compression testing 1 Turn the Start Stop Button clockwise The Tester powers up and goes through a self diagnostic After wards the display screen shows flashing zeros indicating the Tester must be initialized Bel elay Flashing zeros Tolerance Cycles 2 Press the Start Test Button The upper platform lowers and touches the lower platform then raises to a distance of 2 0000 inches The Length display reads 2 0000 The Force display shows a near zero value for the Force The Tester is now initialized for Compression testing S Leng Delay Tolerance Force Cycles Rate Test Point 3 Press the Jog Buttons to move the platform up and down The Length display accurately displays the distance between the two platforms 4 Press s05 The Force display reads 0 000 The Force has been tared or zeroed Z2 4 2 Free Length Test Length at Zero Force Free Length 2 500 in 1 Press the Mode key so that the Mode light is OFF indicating the Program mode 2 Press lt Retrieve gt then lt ENT gt Clears the previous test specifications Press lt Shift gt then press 2 lt F L or I T 5 the Free Length or Initial Tens
64. nd Compression Located to the right of Offset light Selecting Extension turns the lamp ON while selecting Compression turns it OFF eh E i Offset 3 Compression O O O O Rate Preset O Bad Good FLO PeakO O or IT Force O O Jog Up Fast Pause Delay O avy Down Down Fast Mode O O O Test Incremental O Prog J O Absolute 13 3 3 Data Panel continued 3 3 4 Key Pad The Key Pad see figure below is used for entering data to the system and operating the program controls The keys and their functions are described below 0 9 a and black These keys are used for numerical entry Q The zero key is also used in the Test mode to zero the Force This key is also used in the Test mode to enter the E P mode see section 5 1 Mode Key The Mode key switches the system between Test mode and Program mode Section 3 7 further explains Units F L L F how to switch between the Test and Program modes Shift Key The Shift key is used to select the second func 9 tion printed above each black data entry key An audible alert also beeps when the Shift key is pressed Exi Comp Rate Preset dumpto TP i OPT Memory Save Key The Memory Save key is used to store programming steps See section 5 3 1 for more informa tion on the use of this key Speed FLorIT PeakForce Offset Memory Retrieve Key The Memory Retreive k
65. ng Up the Tester anna AAA A AAA 6 2 3 Data ACGUISIION Ee EE 6 ZA Printer IMStANAUGN aaa naan AA NAAANINAG NAG 7 2 4 1 Operational Controls 0 00000maaana aa cece cece eee e eee e eee ee encase eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeteeeeneegs 7 2 4 2 Bo no a AA AA aaa 7 ZAS P nter Ala Ms atan 7 2 4 4 Printer Ribbon Replacement oococcccnnncnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnrnnnrnnirineenines 7 2 9 Changing the Load MEER 8 2 5 1 Load Cell Removal siii E E E a x VA V E E A ESA TEERAA 9 2 5 2 Load Cellinstalanon ct KANG APANG ans 9 3 0 Features and Controls NBA 10 rh Stat Stop BUON nasa ta ata doi lo 10 3 2 Start Test Button aaa 10 3 9 Data Panel iecit vae A as 11 391 JON BULONG mee E 11 9 9 2 BED DISDIEN MET 12 ss Individual LED Indicator WINS sii cil Gala 13 3 34 Key Pad AA AS 14 3 3 9 Measurement Umit NNR LOTS rU 16 34 Ihitlalzaton waaa INANG BABALA LAGA ANAKAN DA ANN 17 E cB UNI cio A o o E o ARA 17 3 6 Programimed leStiNg script 17 at TestiMode ana Program MOOD trad 18 Oiled Test ModE cenital sA dit tadas 18 3 2 Program ModS e NTC 18 3 7 3 Switching Between Test Mode and Program Mode eese nenne 18 3 8 Pin ng PSUS ucc cae LER inui d com pn x laa nord ea A o Mu UR ERU ER DID SENE 18 sd POSO MOVE sra UA REDEE 18 Al AR A 19 3 10 1 Start Above the Free Length curan 19 3 10 2 Start Below the Free LENY aorta 19 311 I
66. nitial TENSION scatcesnvencunedsadevanunde AAA E a awed 20 3 12 Abort Test Function cece 21 3 12 1 Manual Aban ps he e e HR Oe C D e RR T e RE Ee RE eu ER T S RR ERR BR 21 als Programmed ADOM M a 21 3 123 Abort Test Blond ont d ind we oa n Oa d Eu ea 21 3 13 Fatigue Test Preset Multiple Cycles Test ua enit trtum tn rent rtr aor retentu ak ktes nint nha p nn 21 3 14 Adjustable Travel Limit Switch Option aicut na GG KAKANAN ANAKAN AA 21 Table of Contents continued seccion NANANA ILAAN AA AA Page 4 0 How to Operate the Universal Tester 2 00000000000000 aesssssaassaaasasass000ssssssssssns 22 4 1 Poweripand intializing ESANG NAINA AANI ANG 22 4 2 Fee Length Ka AAO AABANG Q 23 43 Force Length A PP 24 44 Length Force TeSt AABANG nirea AG NAA 25 Ao Sold Length oc fc m 26 40 Preset Multiple Cycles Test 2a AA NAN DAA AA 27 4 7 Conditional Force Length Test with Tolerance Test ccceceeeeeeeseeceneeeenseeeesececeneneeeenees 28 4 8 Two Point Conditional Length Force with Tolerance Test ccceccceeeeeeeeeeeeeeeeeeeeeeteneeeeeeeeeees 30 49 Two Point Force Length with Spring Rate Test 32 4 10 Fatigue LES e 34 4 11 Power Up and Initializing Extension Mode cccceessesseseecceeeeeeseseeneneeneneenesseseceeneneeense 38 4 12 Initial Tension Test Extension Mode wecicciccisssccnsezccsnassawudeanvnetevanen
67. od the test spring may release from between the test platforms and could cause injuries When in doubt use the guide pins and or guide rods as shown in the fig ure to the right The guide pins and guide rods are avail able from LSI 1 5 4 Load Cell Protection During normal testing modes manual or programmed the Tester monitors the load cell reading and will not permit an overload to occur However in the Calibrate mode IT IS POSSIBLE TO OVERLOAD THE LOAD CELL Load cell monitoring will continue in the calibrate mode If the load cell is overloaded an error code E04 appears on the display and an alarm will sound to alert the user to the overload Spring Guide Rod Optional Upper Platform Spring Guide Pins Optional Lower Platform Note Larson Systems Inc is not responsible for damaged load cells due to overload 1 6 Specifications Length Specifications Range Resolution standard scale 0 0 0004 0 0 01 01 01 do 0 001 0 03 0 001 0 03 0 002 0 05 0 002 Resolution high resolution scale 0 0001 0 0091 Accuracy high resolution scale 0 0005 00008 Deflection Compensation measured w 0 1in gauge lt 0 001 lt 0 001 block at 5 95 of full scale Parallelism measured at 4 corners at 2 00 in with 200 Ib load 0 001 TIR 0 03 TIR 0 001 TIR 0 03 TIR measured at any length with 200 Ib load 0 002 TIR 0 05 TIR 0 003 TIR 0 08 TIR 0 004 T
68. of the calibration check All references to line A line B etc refer to the Calibration Table The table may be photocopied for subsequent calibration checks The Deflection Length and Force error values must be within the specification limits listed in section 1 6 If any of the error values are outside the specified range then the Tester must be recalibrated Refer to the UT Calibration Manual Deflection 1 Press the Mode key so that the Mode light is ON indicating the Test mode 2 Press s05 to tare or zero the Force 3 Place a 0 1 inch gauge block on the lower platform 4 Lower the upper platform until the Force reading is about 596 of the Load Cell s full scale Enter the Length reading in line A 5 Lower the upper platform until the Force reading is about 9596 of the Load Cell s full scale Enter the Length reading in line B 6 Calculate the error by subtracting line B from line A and enter this value in line C 7 Continue on to the next section Length Length 1 Leave the 0 1 inch gauge block on the lower platform 2 Lower the upper platform until the Force reading is about 45 to 55 of the Load Cell s full scale or 100 Ibs whichever is lighter Enter the gauge block length 0 1 in and the Length reading in line D 3 Calculate the error by subtracting the Length reading from the gauge block length 0 1 in and enter the error in line D A Raise the upper platform and place the appropriate co
69. ood light was ON and an S was displayed The S actually resembles a 5 If the Tolerance was out of specification then the Bad light would have been ON An H indicating high out of spec or an L indicating low out of spec would be dis played 29 4 8 Two Point Conditional Length Force with Tolerance Test For Test Point 01 the 8 tolerance means that an acceptable length at 12 00 Ibs of force would be between 1 84 in and 2 16 in For Test Point 02 the 10 tolerance means that an acceptable length at 23 00 Ibs of force would be between 1 35 in and 1 65 in Test Point 01 2 000 in 8 Test Point 02 12 00 Ib 1 500 in 10 23 00 Ib 1 Press the Mode key so that the Mode light is OFF indicating the Program mode 2 Press lt Retrieve gt then lt ENT gt Clears the previous test specifications 3 An 01 appears in the Test Point entry indicating Test Point 01 is ready to be entered 4 Press Shift then press 9 lt L F gt the Length at Force function The L F light is ON and the 30 Force entry flashes 0 0000 Enter 12 0 force value then press lt ENT gt 12 000 appears in the Force entry and the Length entry flashes va Enter 2 0 length entry and press ENT 2 0000 appears in the Length entry and the Tolerance entry flashes Enter 8 0 the tolerance in percent Tolerance mu
70. or L F use the same test result 5 2 7 Sorter Flap Option The default flap is actuated if no flap conditions defined in the sort table are true 0 do not actuate any flap normal 1 actuate flap 1 2 actuate flap 2 4 actuate flap 4 8 actuate flap 8 1 255 acuate combination of flaps 5 2 8 Sorter Plunger End of Test Option Turns on or off the plunger end of test signal The user may want to disable the plunger end of test signal during manual sorting 102 0 actuate plunger as normal default send end of test signal 1 disable plunger end of test signal 5 2 9 Sorter Delay Option This option specifies a delay between the time the plunger is deactivated and the time the flaps are deactivated This is the time it takes the spring to fall through the sorter The operator cannot perform another test until after this delay The delay can be set to any value between 0 and 25 seconds in increments of 0 1 s The delay in seconds data number entry x 0 1 0 1 second delay default 1 250 delay enabled 0 1 25 0 seconds 253 no delay flaps are disabled for manual sorting 234 no delay flaps are actuated until start buttons are pressed 255 no delay flaps are actuated until the next test changes the flap position 5 3 How to Use Memory Save Retrieve E H Mode The Memory Save and Memory Retrieve functions allow the user to save and retrieve the Options section 5 2 and the Sort
71. ore detailed information consult the manufacturer s handbook included with the printer ON OFF Switch Turns printer on or off Paper Lock Release Lever This lever has two positions 1 Back for friction feed of paper in roll form or individual sheets 2 Forward for sprocket drive of pin fed paper Platen Knob Allows the operator to feed paper manually Select Switch and Light Turns the printer receiving system on and off This switch has an indicator light When the Select Switch and light are on the printer is ready to receive data When the Select Switch and light are off the following three switches are operable 1 TOF Sets the position on the page for the first line of print 2 Line Feed Prints and feeds the paper one line at a time 3 Form Feed Prints and feeds the paper to the top of the next page Please Note If the Select Light goes out while printing press the Form Feed switch to print the output that remains in the printer s memory 2 4 2 Loading Paper Remove the access cover and manually insert and align the paper under the paper bail After inserting the paper press the paper lock release lever forward to confine the paper Turn on the printer and confirm that the paper was properly inserted by pressing the Line Feed button Adjust for the desired TOF set position 2 4 3 Printer Alarm The Alarm Light goes on when the printer is out of paper or when there is a motor alarm error The printer remains inop
72. our facility An NIST traceable certificate of calibration is included with this service 7 2 2 Factory Calibration Service The Universal Tester can be returned to our factory for calibration and a general check up It is then returned to your facility with a certificate of calibration 7 2 3 User Calibration LSI provides the necessary accessories and procedures for users to do their own calibrations The accessories include a User s Calibration Manual Certified Gage Blocks Certified Weights and a Load Cell Extension Cable For information on calibrating the Tester see Universal Tester Calibration Manual Part No 60 1000 014 60 7 3 Verifying Calibration The purpose of this section is to provide three different methods for the user to verify the calibration of the Universal Tester The ISO 9000 standards often require verification of the calibration of the Universal Tester If the Tester is out of calibration refer to the UT Calibration Manual or call LSI for assistance The three methods to verify the calibration are Shunt Calibration The fastest of the three methods but only verifies the force Using a Calibrated Spring Also fast and is a more comprehensive test than the Shunt Calibration test Using Calibrated Gauge Blocks and Weights The most time consuming test but is the most comprehen sive test Note These procedures are to be used only for daily calibration checks They are not intended to replace the n
73. pper right corner The tester is waiting for the second point of rate calculation to be entered LArDUN Qyolcil Hit Speed Length Delay Tolerance Force Cycles Rate r Test Point Press 2 then press ENT ENT lt ENT gt An 04 appears in the Test Point entry indicating Test Point 04 is ready to be entered The Length entry flashes 0 0000 Press the Mode key The Mode light is ON indicating the Test mode Press the appropriate Jog Button so that the Length display is greater than 2 5000 Place the Test Spring on the lower platform Press 0 to tare or zero the Force Press the Start Test Button The Test Point numbers appear for both Test Points The Force obtained at the specified Length is displayed for both Test Points For Test Point 01 The Length will show 2 0000 and the Force will show 12 000 For Test Point 02 The Length will show 1 5000 and the Force will show 23 000 For Test Point 03 The Rate will show 22 00 Speed Leng Delay Tolerance Force Cycles Rate r Test Point T P Condition k ad Radii 1 Padi aw After the test is complete press ENT to scroll through the displays of both Test Points Test Points 01 and 02 and the Spring Rate Test Point 03 33 4 10 Fatigue Test This example demonstrates how the Uni versal Tester can conduct a 20 000 cycle fatigue test and also demonstrates the test capability before
74. press ENT to scroll through the displays for each Test Point 3 4 11 Power Up and Initialization Extension Mode This exercise shows the user how to power up the Tester and how to initialize the unit for Extension testing In order to initialize for Extension Mode the Universal Tester must first be initialized for Compression Mode This exercise describes to the user BOTH the Compression and Extension initialization procedure 1 Turn the Start Stop Button clockwise The Tester powers up and goes through a self diagnostic After wards the display screen shows flashing zeros indicating that the Tester must be initialized 2 Press the Start Test Button The upper platform lowers and touches the lower platform then raises to a distance of 2 0000 inches The Length display reads 2 0000 The Tester is initialized for Compression mode Press the lt Mode gt key so that the Mode light is OFF indicating the Program mode 4 Press 1 then ENT Enters a value for the Length This is necessary to switch to the extension mode 5 Press lt SHIFT gt then press lt 4 gt lt Ext Cmp gt Extension Compression function Switches from Com pression to Extension mode The Extension Compression light is ON indicating Extension Mode 6 Press the lt Mode gt key Returns to Test mode The flashing EEEEE indicates that the Tester has not yet been initialized for Extension mode The Force display will be a near z
75. r may now enter another EO number To enter a new EO number and modify its data go to step 3 Press lt OPT gt to exit the Options function This action will return the Tester to the Program mode The tables on the next two pages list the EO Index and Data Numbers and their associated functions for the various Options 45 5 2 How To Set Options E O Mode continued 5 2 1 After Test Display Option Specifies the display at the end of a test O last Test Point is displayed default 1 99 Test Point 1 99 is displayed 100 the initial display is displayed If the Sorting Option is enabled then the inital display sort test count is displayed If the number gt the number of Test Points then the last Test Point is displayed 5 2 2 Automatic Platform Return Option After each test the upper platform returns to its initial starting position by default This option will override the default Three reasons a user may want to override the default are 1 Performing a height calibration 2 Moving quickly to a certain force or length while in Test mode 3 Testing a spring that cannot sustain a rapid fast return speed 2 0000 0 platform returns to start position default 1 platform remains at the last test point 5 2 3 Return Platform on Overload Option Returns the platform to the initial start position when an overload is encountered during a test 2 0000 0 7 do not ret
76. r when the specifications are cleared The specifications are cleared using the keystrokes lt Retrieve gt then lt ENT gt The following steps explain how to set the Options T 2 Press the Mode gt key so that the Mode light is OFF indicating the Program mode Press the lt OPT gt key E O Enter Option appears in the LED Display and a zero flashes The Tester is waiting for an EO number Enter the EO number For example EO number for the Automatic Platform Return Option is 2 To enter this number press lt 2 gt lt Ent gt Two more numbers illuminate on the LED Display The Index Number is on the left The Data Number is on the right Tester is in E O mode E O 2 is displayed eS S Belay Tolerance Force Cycles Rate K 7 Index Number Data Number The Data Number is the flashing number This number represents the data associated with the dis played Index Number To continue the above example press lt 0 gt then press lt Ent gt The Tester accepted the entry O for Index Number 000 This tells the Tester to return the platform to the start position after a programmed test is complete Press the lt OPT gt key To continue the above example this will tell the Tester that the user is finished modifying the Automatic Platform Return Option The Index and Data numbers disappear and a flash ing O appears At this point the use
77. rom the two Forces measured in steps 11 and 12 The Force display will show 0 1507 the Initial Tension The Length display will show 0 1000 the Length value entered in step 5 Leng Force Rate 4 4 13 Extension Initialization upper and lower platform attach the fixtures to each other then press the start button when the screen shows flashing E s The tester will perform an initialization proce dure to find the extension initialization offset This offset will be used to find the zero point for extension testing and is stored as a negative number in the length offset The reason a negative number is stored is that normal offsets section 3 3 5 are additive offsets that is the number in the offset is added to the length or force reading to adjust for situations like fixtures The extension initialization offset is used in a negative fashion the offset is sub E tracted from the length reading to find the extension zero If for whatever reason you cannot perform an extension initializa tion you can take precise measurements of your extension fixtures and enter the extension initialization offset manually You can enter the offset in the normal fashion for offsets section 3 3 5 Once an To initialize the tester in extension mode attach the extension testing fixtures to the offset is programmed for an extension test the tester will not have
78. ry 04 AND Bad Low 02 for Flap Condition B to be true If both of these tests are true then Flap Condition B is true and then flap 02 will be actuated If EITHER testis false then Flap Condition B is false and the computer moves on to Flap Condition C Flap Condition C Index Numbers 005 and 006 is a test for flap 00 the default flap If the result of the test is Satisfactory 01 then Flap Condition C is true and then flap 00 i e no flaps will be actuated If the test is false then Flap Condition C is false and the computer moves on to the next step in the Sort Table The next step Index Number 007 is the end of the Sort Table Since this is the end of the Sort Table the default flap 00 is activated This means no flaps will be actuated If one of the Flap Conditions are found to be true then subsequent Flap Conditions will not be checked For example if Flap Condition Ais found to be true then flap 01 will be activated Flap Conditions B and C will not be checked and the sorting test will end 22 6 2 How to Enter a Sort Table The Sort Table is entered in the E O mode where E O stands for Enter Option The EO number for the Sort Table is 100 The following steps explain how to enter the the Sort Table 1 2 Press Mode so that the Mode light is OFF indicating the Program mode Press the lt OPT gt key E O
79. s 3 The upper platform then goes up again at a very slow speed stopping when it reads the first zero force from step 2 4 The upper platform goes up and stops at the length L 0 1000 in in this example and the Force is read The upper platform goes up and stops at the length 2L 0 2000 in in this example and the Force is read 6 The initial tension is calculated by extrapolating backwards from the two Forces measured in steps 4 and 5 eee L 0 100 in 2L 0 200 in Y Step 3 Spring at Step 4 Force is Step 5 Force is zero Force measured at measured at Length L Length 2L 20 3 12 Abort Test Function The Universal Tester is designed so that the user can elect to abort a programmed test in the middle of a test run Three reasons a user may want to stop a running programmed test are 1 If the spring breaks or dislodges from between the platforms 2 If the spring does not meet the specified Tolerance for Length Force or Rate 3 If the user wants to change the features of a test in mid test The user can stop a test in one of two ways Manual Abort or Programmed Abort 3 12 1 Manual Abort The user may abort a programmed test while it is running by pressing a Jog Button This action will stop the test after the current Test Point To use this feature push and hold a Jog Button until the test is aborted The tester will complete
80. shunt calibration disabled 1 shunt resistor off press lt Shift gt lt 9 gt to enable A D calib 2 turn on shunt resister to check calibration 5 1 3 Powerup Measurement Units Sets the default units when the tester is turned on 4430 0000 O Ib in default 1 nt mm 2 g mm lt 56 Ib load cells Kg mm gt 56 Ib load cells 3 Other Measurement Units 5 1 4 Other Measurement Units Selects one of the following measurement units 4431 0000 O Ib mm default 1 nt in 2 g in or kg in 3 oz in 4 oz mm 5 1 5 Memory Save Retrieve Selects whether the Options Section 5 2 are saved to memory 8389 0000 0 save to memory default 1 do not save to memory 5 1 6 Skip Beep After Bad Test Tells the tester whether or not to beep after a bad test 9896 0000 O beep after each bad test default 1 do not beep after each bad test d 5 2 How To Set Options E O Mode Options are set for individual test specifications as opposed to the Global Parameters which are set for all tests Options are entered in the E O mode where E O means Enter Option Options include the upper platform start position and test point display Options also include the Sorting options See Section 6 0 Sorter for more information on the sorting features of the Universal Tester Unlike Global Parameters Options are set to default values when the Tester is turned off o
81. st be between 0 01 and 99 9 8 0 appears in the Tolerance entry Press lt ENT gt The Length entry flashes 00000 indicating that the Tester accepted the data An 02 appears in the Test Point entry indicating Test Point 02 is ready to be entered S Leng Delay Tolerance Force Cycles Rate Test Point TT gE9 T P Condition Haa edit act aw 4 8 Two Point Cond Length Force w Tolerance Test continued 10 11 12 13 14 15 16 17 18 19 20 21 Press Shift then press lt 9 gt lt L F gt the Length at Force function The L F light is ON and the Force entry flashes 0 0000 Enter 23 0 force value then press ENT 23 000 appears in the Force entry and the Length entry flashes Enter 1 5 length value and press ENT 1 5000 appears in the Length entry and the Tolerance entry flashes Enter 10 0 the tolerance in percent Tolerance must be between 0 01 and 99 9 10 0 appears in the Tolerance entry Press ENT The Length entry flashes 00000 indicating that the Tester accepted the data An 03 appears in the Test Point entry indicating Test Point 03 is ready to be entered Press the Mode key The Mode light is ON indicating the Test mode Press the appropriate Jog Button so that the Length display is greater than 2 5000 Place the Test Spring on the lower pl
82. t both limits Error codes because of the Working Limits are generated three places The first is in program mode If you try to exit Program mode and you have programmed a Length specification that is outside the Working Limits you will see either an E87 if you have programmed below the lower Working Limit or an E88 if you have programmed above the upper Working Limit The second place an error can be generated is when you press the start button If the platform is outside the Working Limits before a test is started you will receive either an E87 or an E88 if the platform is below the lower or above the upper Working Limit respectively You must then move the platform with the Jog buttons to be within the Working Limits Finally you will receive an error if the platform moves past a working limit while a test is being performed If a Working Limit is passed an E87 or E88 will be generated and the platform will stop for going past a lower or upper limit respectively and the error will be recorded on a printout if you have a printer attached 42 4 14 Setting Working Limits Continued When the platform stops for a Working Limit Error during testing it will not stop at exactly the specified Working Limit The platform will over travel by approximately 0 05 inches 0 125 mm Be aware of this fact when programming your specific limits 5 0 Setting Global Parameters Options and Memory Functions 5 1 How To Set Global Parameters E P
83. t rere errr reer errr ere 60 1 2 Calibration arriva a 60 LAN On Site Calibration Gel VIGB ci A ANA 60 7 2 2 Fablery Calibration ANI A A A GNE CES UDOUUNNE 60 1 23 serGalibratlon iaa io 60 7 3 Verifying Calibration a wens 61 Fo EEES N ole o aiii idad 61 7 3 2 USING Calibrated PURO maa A AA AA 62 7 3 3 Using Calibrated Gauge Blocks and Weiss 64 7 4 Diagnostics User Interface Start Up Sequence ssssssssssee Hem 66 8 0 System Error Cod sS irene cent ae ce settee AA AA AA 68 9 0 Warranty Information 00 a a wa at AA AA eae cae ence cca seated eee 70 1 0 About the Universal Tester System 1 1 Description What it can do The UT 11 UT 24 UT 25 and UT 36 series of Universal Testers are stepper motor driven testers that allow the operator to enjoy simple accurate testing capabilities with many built in features The Universal Tester sys tem is available in four length displacements with five different software package options The UT 11 has an 11 inch maximum length displacement or stroke The UT 24 has a 24 inch stroke the UT 25 has a 25 inch stroke and the UT 36 has a 36 in stroke The UT 11 Universal Tester is pictured below Larson Systems Inc 1 2 Standard Features The following features are standard on all Universal Tester systems e Emergency stop and start button e Safety shield and through rod capability for operator protection Compression testing Manual and programmed testing modes 4 jog
84. teieusdatacuvarsanscdaneatenedawacisducieanenns 40 4 13 Extension litiaza IN as waco AA AA 42 4 14 Setting Working LNAG aie kanaan NANG aban Sete aA ia O E S 42 5 0 Setting Global Parameters Options and Memory Functions 43 5 1 How To Set Global Parameters E P Mode aaa ridad 43 5 1 1 Printing OPUS e a 44 MEUS nuu APN aa NADA Sec escaped bss AA Adi 44 5 1 3 Power Up Measurement Units Option c ccc cece ecee aaa 44 5 1 4 Other Measurement Units Option 111111777 7777 cece cece cece cece cece ee Ennn nn nn nn nennen nennen 44 5 1 5 Memory Save IelIIBVB sisi 44 5 14 92 Skip Beep Aller Bad T6SL ot eine NAAN ia 44 mes How To Set Options CEO Mode ceacssscsunceatsnosuacnsaiainneetasasvansdlaneevenamecitnprgunmetditiiatedinansmeanineanudasanes 45 5 2 1 After Test Display Option 0000000 a 46 5 2 2 Automatic Platform Return Option 111111171 7 46 5 2 3 Return Platform Overload Option 2 2 ce cceccce cece cece cece cece e cece E EE a Ei 46 5 24 Programmed ALON OBUOED relata AA 46 5 2 5 Min Max Force on a Peak Force Test Option 1 77 7070000 ssasannna nauna anan asaan aaa naaa aaaaaaaaaaan 46 5 2 0 4 or 5 WAY SONNY sip 47 52 S ner Default Flap OpUOR ani NALANG eee 47 5 2 8 Sorter Plunger Enable Disable D DEO samaan tsactgiocbicduuandencigiummenupsahendavanbmcadtncaniaeuiyae 47 E A
85. test 3 14 Adjustable Travel Limit Switch Option The Travel Limit Switch should be positioned slightly above the highest testing point but below the maximum travel length for the part being tested Please note the switch does not engage immediately upon the plat form touching the switch the switch must be depressed slightly before it engages Positioning The Switch To adjust the position of the Travel Limit Switch loosen one or both of the wheel screws enough for the switch to begin moving and slide the switch to the desired position Tighten the wheel screws finger tight Switch Operation If the switch has been engaged during a test the tester will generate an Error 98 similar to an Abort Button press In this case however the Adjustable Travel Limit Switch will also lock out the motor To allow the platform to move again you must move the platform off the switch Do this by pressing the release button on the back of the tester computer head and jogging the tester in the appropriate direction to release the switch If the switch has been engaged while jogging no error will be generated but the motor will be disabled You must press the release button on the back of the tester computer head in order to jog off the switch 21 4 0 How to Operate the Universal Tester This chapter describes several examples of basic operations for the Universal Tester The step by step instructions are designed to give the novice user immediate experie
86. the Program mode Press lt Retrieve gt then lt ENT gt Clears the previous test specifications An 01 appears in the Test Point entry Test Point 01 is ready to be entered Press Shift then 9 lt L F gt the Length at Force function The L F light is ON and the Force entry flashes 0 0000 6 Enter 1 0 force value and press ENT 1 000 appears in the Force entry and the Length entry flashes Sa mom o Meo 7 Enter 2 7564 length value then press ENT 2 7564 appears in the Force entry and the Tolerance entry flashes al 8 Enter 0 5 tolerance value 0 5 appears in the Tolerance entry 62 7 3 Verifying Calibration continued 7 3 2 Using a Calibrated Spring continued 10 11 12 13 14 15 16 17 18 19 Id OVI Jyotii v Le Delay 2 Tolerance Force Cycles Rate bag Test Point Press lt Ent gt The display changes to Test Point 02 Repeat steps 5 9 while entering the values for Force and Length for each Test Point as listed in the table on the previous page Enter 0 5 for the tolerance value for each Test Point Be sure to press Shift then 9 lt L F gt function before entering each Force and Length Test Point Save these programming steps in a memory heading for use at a later date Press lt Save gt then s55 then lt ENT gt The Tester saves the programming steps into Memory
87. the current test point and then abort generating an error E96 3 12 2 Programmed Abort The user may also program the Tester to abort the test if the results do not meet the specified Tolerance for Length Force or Rate This feature is set as an Option in the Program mode When the Programmed Abort function is turned on the Tester will stop the test whenever a Test Point fails to meet the specified Tolerance When this occurs the upper platform will return to the initial position and the Tester will display the data for the out of tolerance Test Point See section 5 2 4 Programmed Abort Option for instructions on how to set this function Also see section 4 10 Fatigue Test for an example that uses the Programmed Abort function 3 12 3 Abort Test Button For testers equipped with this button it allows for the immediate stopping of a test when the upper platform is in motion When a test is aborted with the Abort Test button the E98 error code is generated 3 13 Fatigue Test Preset Multiple Cycles Test The Universal Tester has the capability to conduct a fatigue test The test uses the Preset Multiple Cycles feature to subject a spring or other testable material to a preset force or length for a specific number of cycles The UT system with the Preset option allows for a maximum of 99 cycles The UT system with the Fatigue Test option allows for a maximum of 10 000 000 cycles See section section 4 10 for an example of a fatigue
88. ting in four ways 1 In the Test mode press the lt PRT gt key to print the Force and Length measurements that are currently displayed on the LED Display 2 In the Test mode after a program has run the printer will automatically print out the test results In the Program mode press the lt PRT gt key to print a record of the current specifications 4 Inthe E P mode EP number 1234 the user can select how the Tester will print the test information See section 5 1 1 3 9 Positioning Move The Positioning Move is a type of Force at Length test where the user enters a specified value for the Length and the value 99999 for the Force This will tell the Tester to move the upper platform to the specified length without the precision of a typical Force at Length test This feature is useful to quickly move the upper platform to a specified length if the precision is not critical The precision of the Positioning Move is typically 0 001 in An example of a Positioning Move is included in section 4 10 Fatigue Test 18 3 10 Free Length Function The Free Length function determines the length of a spring with no force applied to the spring This function can be performed in two ways 3 10 1 Start ABOVE the Free Length This method is the easier of the two methods because it starts with the upper platform ABOVE the spring s Free Length An example of this method is described in Section 4 2 Free Length Test
89. ty and obtain optimal results To turn off the Tester push the Start Stop button This action will power down the motor and extinguish the display 3 2 Start Test Button The Start Test Button is located on the Data Panel in the lower right corner To start each automatic test press the Start Test Button Start Stop Button 10 3 3 Data Panel The Data Panel is pictured below and shows the location of the major parts of the Data Panel including the Start Test Button Jog Buttons the LED Display the Individual LED Indicator Lights and the Numeric Keypad LED Display Measurement Unit Indicators Key Pad O Larson Systems Inc Tolerance U Cycles Test Point Condition HO Bad HighO LO Bad LowO SO Satisfactory o e Extensi Offset compression O O Length Force 0 Rate TestO Point InsertTP Save Retrieve Memory Individual LED Indicator Lights Start Test Button Jog Buttons 3 3 1 Jog Buttons The Jog Buttons located in the lower right corner of the Data Panel controls the upper platform The Jog Buttons are operational during the Test mode but not during the Program mode There are 4 Jog Buttons Up Fast Up Down and Down Fast Up Fast Press to move the platform up in the Fast speed Up Press to move the platform in the up direction in the Slow speed Down Press to move
90. ure was performed several times in section 4 0 How to Use your Tester To clear the current settings simply retreive Memory Heading Location O which sets all settings to the defaults 1 Press the Mode key so that the Mode light is OFF indicating Program mode 2 Press the Retrieve key 3 Memory Heading Location 0 is displayed 4 Press the lt ENT gt key to complete the procedure Tester returns to Program mode 48 6 0 Sorter The Sorter is used to sort springs based on the results of a spring test performed on the Universal Tester The Sorter is pictured on the facing page with the Universal Tester After the test a sorter plunger pushes the spring down a chute into the Sorter The flaps on the Sorter are designed to deflect the spring into the appropriate bin If no flaps are actuated the spring will fall straight down to the center bin A 3 way sorter with the three bins is pictured to the right The Sorter software can be used to sort parts mechanically with the sorter connected or manually without a sorter connected A manual sort is accomplished by setting up the Uni versal Tester to display the flap number after the spring is tested The flap number would correspond to a bin number The operator would then throw the spring into the appropriate bin It is highly recommended that the user become familiar with the basic op erations of the Tester prior to setting up sorting specifications
91. urn platform on an overload default 1 7 return platform on an overload 5 2 4 Programmed Abort Option Set the tester to abort a programmed test if the results of a test point do not meet the specified tolerance for length force or rate 4 0000 0 do not abort test if result is out of spec default 1 abort test if result is out of spec 5 2 5 Min Max Force on a Peak Force Test Option Set the tester to test for the minimum or maximum force on a peak force test 5 0000 0 test for maximum force on a Peak Force test default 1 7 test for minimum force on a Peak Force test 5 2 How To Set Options E O Mode continued The following tables list the EO Index and Data Numbers and their associated functions for the various Sorting Options See Section 6 0 Sorter for more information on the sorting features of the Universal Tester 5 2 6 4 or 5 Way Sorting Option This option efficiently lets consecutive absolute F L or L F tests that have the same length for F L or force for L F use the same test result This allows tests to have different tolerances and utilizes 4 or 5 way sorting When the test point is finished the last programmed test of the identical set will be displayed The first and middle point s results can be reviewed by using the enter button when the entire test is finished 0 normal operation 1 consectutive absolute F L or L F tests that have the same length for F L or force f

UT Series Manual - Larson Systems Inc.

Contents

Download Pdf Manuals

Related Search

Related Contents