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5872C Manual Version 5_4 

 

LASER 

CHECK 

 

 

Surface Roughness 

Measurement Gages 

 

O P T I C A L       D I M E N S I O N S

LLC

®

 

1 3 7   E a s t   A l t o n ,   S u i t e   B  

S a n t a   A n a ,   C A     9 2 7 0 7  

P H O N E :   7 1 4 - 6 6 8 - 9 1 1 5  

F A X :   7 1 4 - 6 6 8 - 9 1 1 9  

i n f o @ o p t i c a l d i m e n s i o n s . c o m

 

w w w . o p t i c a l d i m e n s i o n s . c o m  

®

 

Summary of Contents for LASER 5872C

Page 1: ...ement Gages O P T I C A L D I M E N S I O N S LLC 1 3 7 E a s t A l t on S u i t e B S a n t a A n a C A 9 2 7 0 7 P H O N E 7 1 4 6 6 8 9 1 1 5 F A X 7 1 4 6 6 8 9 1 1 9 i n f o op t i c a ld i m e n...

Page 2: ...ccessories and is not to be used otherwise or reproduced without written consent of Optical Dimensions LLC The Lasercheck gage is patented technology protected under US Patent Number 5 608 527 O P T I...

Page 3: ...7 SOFTWARE SETUP 8 To Install Lasercheck Software from Windows 98 2000 NT or ME 8 BASIC OPERATION USING CONTROL BOX PUSHBUTTONS 9 TURNING THE SYSTEM ON 9 Main Screen 9 CONTROL UNIT AND DISPLAYS 9 LCD...

Page 4: ...e Headtest Screen A 24 Measure Headtest Screen B 25 MEASURE ALIGN DIALOG BOX 26 Horizontal Alignment with Measure Headtest or Measure Align 26 VERIFYING ALIGNMENT PROCEDURES 27 SET HEAD CLOSE CORRECT...

Page 5: ...ay 40 Trigger pins 40 Power pins 40 Internal Opto relay Schematic 40 Typical Wiring Example 41 1 Using Unpowered Switches for inputs 41 2 Using Powered Triggering Device e g Proximity Sensors for Inpu...

Page 6: ...o 99 RH Power requirements 110 VAC 50 60 HZ 2 0 Amps max Storage Computer Requirements Windows 98 2000 NT or ME Available serial port Other Features Works on any material color rubber glass steel etc...

Page 7: ...ose specified herein may result in hazardous radiation exposure The measurement head emits a red visible 650 nm laser beam pulsing at a 10 to 50 Hz Each pulse contains as much as 90 microjoules of ene...

Page 8: ...urns must include required paperwork Incorrectly labeled and incorrectly prepared shipping and customs documents will result in delays to equipment being returned to customer The following statement s...

Page 9: ...sercheck housing and electronics are well grounded The head is sealed at all seams and holes to protect components from external contaminants The user should not open the measurement head If opened wi...

Page 10: ...rameters Lasercheck has been designed for a nominal height standoff of 1 055 inch 0 01 inches from the measurement surface Motions and vibrations within that tolerance range are monitored continuously...

Page 11: ...DB15 connector labeled Sensor which mates to the connector end of the measurement head cable The cable should be secured with the thumbscrews on the cable The computer cable provided is a serial null...

Page 12: ...holes provided on the side of the box with optional X Y Z head mount and optional mounting feet for bench top operation Mounting Holes Lasercheck is provided with four 10 32 mounting holes Labeled C i...

Page 13: ...has software that initializes electronics controls the LCD screen monitors the laser reads detector signals and calculates the alignment and surface roughness It also saves measurements in ASCII forma...

Page 14: ...s startup period you will see will see the words displayed on the LCD screen Once the electronics and software are fully executed you will see the LCD screen display Or the current version of the soft...

Page 15: ...nder external computer control or under control of the front panel pushbuttons This is determined by configuration of an internal user selectable setup file inside the control box When a setup file co...

Page 16: ...tion Instructions on changing screens is in the section named Control Unit and Displays in this manual The Control Box should be loaded with a proper setup file so that it is ready to communicate with...

Page 17: ...isplay Control of the Setup File Under the Setup menu select Open and pick a setup file to modify Use Uncal stp to start with Select the Display Control button and configure the X Scale to be from 1 t...

Page 18: ...oftware select the Perform Measurements push button This invokes the setup open dialog box When Lasercheck software is first installed on your computer sample setup files STP are loaded on your comput...

Page 19: ...op While the roughness display is running the Stop menu selection can be used to stop the data acquisition Selecting Start will restart the display The Stop Start cycle can be repeated as many times a...

Page 20: ...ned to the data graph screen and the new filename you have created will be present in the upper right corner of the graph Export Export can be used to export a text format file of the data named Lasrd...

Page 21: ...s for measuring individual parts being presented to the gage such as parts on a conveyor In this mode the few measurements made between a start input and a stop are averaged and only the single averag...

Page 22: ...moved over the surface In either case alignment must be maintained during relative motion An air knife can be used prior to the gage to clean coolant etc from surfaces to be inspected if necessary Sta...

Page 23: ...Next select the Automatic button and select Automatic for the Start and Stop options Select External for Save Options The name of the data file can also be generated and printed automatically or manu...

Page 24: ...of approximately 20 psi blowing on the surface Positioning Prox Sensors on Conveyor for Automated Inspection A start sensor should be mounted in a location that activates as soon as the surface to be...

Page 25: ...a setup file into the control box see the section in this manual under File Management Receive Command An example setup file would look like FILENAME Grind START_INPUT EXTERNAL1 RA_UNITS MICROINCHES R...

Page 26: ...f reflected and scattered light is used to calculate the surface roughness of the area illuminated by the laser beam The array is also scanned by software to find the specular beam when there is one a...

Page 27: ...the laser path and specular reflection from surfaces at three different distances from the head The bottom surface the farthest from the head shows the specular reflection missing the detector array T...

Page 28: ...e is perfectly horizontally aligned all laser reflection is back into the centerline of the Lasercheck head Directional Rotational Many man made surfaces have a dominant direction of roughness Strong...

Page 29: ...ned smoother surface Ra of about 5 microinches Because the surface is relatively smooth a well defined specular beam is maintained as it bounces off the surface into Lasercheck It displays itself as t...

Page 30: ...rough surface is at or make the rough surface look smooth to Lasercheck for just the alignment A reliable way to make a rough surface look smooth to Lasercheck is to wipe a thin film of oil on the sur...

Page 31: ...l alignment on cylindrical surfaces Remember SUM is a sum of all of the voltages from the detectors When horizontally aligned you will obtain the largest possible value on SUM because more light is re...

Page 32: ...Align set the horizontal alignment as close to optimal as possible This is done by maximizing the value of SUM displayed on Measure Headtest software or by maximizing the horizontal alignment percent...

Page 33: ...n the air You will see a dry stripe being created by the air knife Slide the air knife in its mount until the laser spot on the surface is centered in the dry stripe This provides optimal positioning...

Page 34: ...llustrating air knife positioning for surfaces approaching Lasercheck from the end of the box maximum 1 8 away Proximity sensors are also in the view The proximity sensors alert the electronics to per...

Page 35: ...TERNAL1 external inputs to the control box in conjunction with the Lasercheck Windows software controls measurements RA_UNITS This sets which units the Ra is displayed on the LCD screen The RA_UNITS o...

Page 36: ...sed for performing calibration measurements These files should be loaded on the Lasercheck controller Smooth Mode Measurements Using the button on the control box scroll until the LCD screen displays...

Page 37: ...uctions for using the Setup File and Calibration Template xls The spreadsheet is designed to step you through the calibration process from Step 1 through Step 6 Lasercheck calibrations often show thre...

Page 38: ...check calibration measurement values from the Lasercheck controller Then Left Click on the Push Button below labeled Insert Lasercheck Values to import the values into this spreadsheet program Select...

Page 39: ...of the Step 2 tab of the spreadsheet including instructions Adjust Max X Value Adjust Min X Value Use the scroll buttons to extend or contract the linear green curve and the associated data points th...

Page 40: ...bit an exponential relationship as the surface values get rougher Adjust Exponential Use the Coarse and Fine scroll buttons to match the exponential blue curve and the associated data points at the ro...

Page 41: ...roughness that have been performed in Step 2 through Step 4 If any regions of the best fit curves do not appear to best fit the data then go back to the relevant tabs and step back through the process...

Page 42: ...le Manual Input Setup File RECEIVE_NAME ProcessA set FILENAME ProcessA FILENAME ProcessA Cal_A1 0 50 START_INPUT MEAS Cal_B1 5 90 RA_UNITS MICROINCHES Cal_C1 0 00 RA_LIMITS 15 00 20 00 Cal_A2 0 00 LOW...

Page 43: ...n Setup File RECEIVE_NAME ProcessA set FILENAME ProcessA START_INPUT MEAS RA_UNITS MICROINCHES RA_LIMITS 15 00 20 00 LOW_ANALOG 15 00 HIGH_ANALOG 20 00 RA_THRESHOLD 12 00 CAL_TYPE EXPONENTIAL CAL1 0 5...

Page 44: ...the calibration software switches from providing values using smooth mode Ra calculation algorithms to providing values using rough mode Ra calculation algorithms RA_UNITS RA_UNITS indicates the units...

Page 45: ...C from internal power supply Pin 7 Ground of internal power supply Use only for powering external triggering devices that require power such as inductive proximity sensors and as Internal Opto relay s...

Page 46: ...l Box Voltage Pin 9 b Connect Triggering Devices between Ground Pin 7 and Input Pin Recommended Proximity Sensor Specifications DC NPN short to ground to activate shielded for most applications normal...

Page 47: ...sed if Out of Spec 6 Analog_Out Ground 0 10V 4 20mA 7 Not Used 8 Not Used 9 Ra_Limit Closed if Out of Spec NOTE Jumpers JP2 and JP3 on top board inside of control box must be set to configure 0 10V vo...

Page 48: ...43 NOTE 9 to 24 Volt power must be connected in series with Current Monitor Must be External power source Pin 1 Pin 6 4 milliamp LOW_ANALOG 20 milliamp HIGH_ANALOG 9 to 24 Volt EXTERNAL Power Source...

Page 49: ...heck Control Box directory on the computer In that directory a file named recvtxt bat is created Double click on that file A DOS prompt will appear asking for Comm Port Enter the com port number that...

Page 50: ...computer while this is displayed The PC will display a window with a bar graph indicating progress of the file transfer When all files have been transferred the control box will return to the File Sy...

Page 51: ...T is used to measure surfaces that have been ground UNCAL_R and UNCAL_S are setup files that are used to collect data from rough and smooth surfaces when creating a new setup file Creating Setup Files...

Page 52: ...ted the LCD screen will display MEASURE setupfile System files Prepare Computer The files named Headvc exe Sndhead bat and Zm exe should be found in the C Program Files Lasercheck 6212A Controller Sof...

Page 53: ...System Window and the DOS window on the PC will indicate that the file s have been successfully transferred Finish Exit the DOS program Power Cycle the control box turn the main power on and off again...

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