LTL-X RETROMETER Manual
Contents
1. 44 eae 45 47 Mounting the wet night rails for rain measurements 48 uni a 50 FUP PEIN DIE 51 COMMUNICATION FACILITIES 51 COonmmuniCation Spe Cli Cat 51 A EIN DIED 52 SPECIFICATION 52 FCC UIC Ses 52 Error Bookmark not defined Environmental Character Sti Cs 53 IVES CHAD _ _ ___ 53 A 54 TNC YY 54 vi LTL X Retrometer DELTA SECTION 1 OPERATING INFORMATION LTL X introduction The LTL X retroreflectometer is a portable field instrument intended for measuring the retroreflection prop2. Example change HANS to JANS 1 Use and to place the upper cursor on J Press the OK button to accept J and further 3 times to accept the following letters This places the lower cursor after the end of the name The upper cursor will now stay on INS DELTA EDIT USER A BCDEF H J 0 gt R DELINSEND 5 T UVW X 20 0 1 2345 6 7 8 9 Use gt to select END and press OK to finish editing Finished Diagnosis Press the MENU button Highlight the line DIAGNOSIS Press the OK button and the menu showing INSTRUMENTS BATTERY BOARDS and MISCELLANEOUS will be seen Each gives information aimed at extended service and factory use All the information will be printed out if you press the PRINT button Choosing output device Press the MENU button Highlight the line PRINT OUTPUT by pressing the UP button once SETTINGS SERIES ID LOG AVERAGE DIAGNOSIS PRINT OUTPUT INT By pressing the OK button you can change the output device The two possibilities are Int The built in printer will be used for output Ser The communication port will be used for output The help system Press the HELP button to show a context dependent help page Pressing HELP once more will present a general help menu in which you can highlight a subject by using the UP or DOWN button and the press the OK button to show the help text
3. 47 CFR FCC Part 15B Class Power supply Built in 12 volt 2 1 Ah NiMH External charger power supply Friwo FW7530 15 100 240 VAC 15VYDC CDaren Approx hour 50 min Hats er ZO MIN e T3 15A Powersupply 9720 MN T3 15A Pati MeMO 1500 measurements Data retention Troni purchase 5 years USB 52 LTL X Retrometer DELTA Environmental characteristics Temperature 0 C to 45 C 32 F to 113 15 to 55 5 F to 131 F ING I EE AE E ew tay nee cara ES 85 and non condensing Battery must be fully charged Mechanical characteristics NER SSR RTI 573 mm 22 56 in 222 mm 8 74 in 538 mm 21 18 in lt 40 9 20 165 eee 20 kg 45 Ibs Construction Aluminum Polymer A Silicone
4. 31 TBE 33 Ne ihe Genet 33 33 34 NICW S S OI O 35 LOS as 35 SENA ____________ ___ 30 Other eis sa ena 37 PUNCH 37 JEE 38 SLOSS 39 CHOOSING Ce VICE 39 The IPS yS 39 TROLS and warnine 39 DELTA LTL X Retrometer TABLE OF CONTENTS DC hAUICSEHIMNGS 7 USER TCSEL oane God ga ets 40 a ee ae ee Ree 40 SECTION 4 MAINTENANCE OE 41 41 41 Ae cee rasan sac re tees rosa oleracea ms rer rea ae E 41 43 MESA INN IER EE ER E AEE EA EE E 43
5. Errors and warnings When a measurement is taken a status number is generated and saved in the log together with the measurement The status number reflects various conditions concerning the measurement If a problem occurs a warning icon LW or an error icon is Show above the HOME screen and an audible alarm is sounded if enabled and error is stored in the log To view the nature of the problem press the UP button and the warning error icon will be highlighted and the most severe problem will be stated in the message line underneath Then press the OK button to view a total list of problems starting with the most severe Press the OK button alternatively BACK or LEFT to return to the HOME screen If the problem did not hinder the completion of the measurement the erroneous RI value will be saved in the log together with a status number which can identify the problems when the log is evaluated using the RSC program DELTA LTL X Retrometer 39 Default settings user reset At power up a combination of buttons can be pressed to reset the active instrument setting and restoring the default settings Forced English menu and standard contrast If the instrument is set to a foreign language and you can not find the language select menu do the following Turn off the instrument Press and hold the a button while turning on the instrument Now you can find the language select menu and select the language you want If you do not
6. dled as such The LTL X 15 factory calibrated Nevertheless start measurements with a calibration Study the display for any warning or error icons See also Section 4 Maintenance Note Keep the light trap dust protection window and ceramics on the calibration unit clean Keep the battery fully charged A well charged battery is more resistant to aging and damage High temperature conditions Display If the display is exposed to intense direct sunlight during a longer period of time the display could become overheated To reduce heat an IR reflecting filter is mounted on the display It is recommended to close the protective display shield The shield also protects against damages and scratches Daylight readable displays are vulnerable to high temperatures High temperature will de crease the display service life When the display temperature exceeds 50 122 F an audible alarm will sound The alarm will sound for 20 second and then pauses for one minute This sequence continues until the temperature is lowered or the instrument is turned off The alarm can be suspended for one minute by pressing any key Battery The battery is rated to maximum 45 C 113 F operating temperature 16 LTL X Retrometer DELTA SECTION 3 THE USER INTERFACE Series selection User selection Error or Warning GPS __ Battery Measuring gj 8 2 A 2001 NOV 14 12 45 30 Series D name HIGH
7. MOVING and type FIXED NUMBER Highlight the third line and press the OK button to focus on the NUMBER digits Then use the UP or DOWN button to change the value between 2 and 25 Finally press the OK button to confirm the new value or you can amend changes by pressing LEFT or BACK The default setting is 4 RESET Highlight the fourth line and press the OK button to reset the calculated average value and reset the number of measurements included in the average to zero DELTA LTL X Retrometer 37 Editing names From certain points you arrive to the EDIT menu e g by choosing NEW from the series list 38 1 Accept the highlighted letter with OK or select a new letter with gt 4 To delete the marked letter select DEL To insert before the marked letter select INS insert 2 Press the OK button to accept The cur sor moves one place to the right and the next letter is highlighted 3 Repeat 1 2 to correct or add new letters To move backwards select and press the OK button the required no of times This mode is cancelled by using gt nov LTL X Retrometer 4times OK gt EDIT USER EDIT USER ABCDEFGH BC DEF GH J K U R DELINSEND S Q 5 TU VWXYZ TU VWXYZ 01 0 12 23 456789 345 6 789 HANS 1 4 JANS 1 4
8. Battery status see pg 43 DELTA LTL X Retrometer 17 Lower Icon row e From the lower icon row you can select a road marking icon that will be saved together with the measurement in the log see pg 21 for future measurement identification Ac cess the icons by pressing the DOWN button Use the LEFT or RIGHT button to mark the preferred icon Pressing DOWN again shows more icon rows from a roll stack of four rows One row marked with a PR for Preset can be preset by the user see pg 31 and is saved separately for each measuring series It will be the active icon row ready for selection when a measuring series is selected The measuring schedule upload see pg 40 includes series ID and the six preset icons for each series e Activate the marked icon with the OK button or exit with the HOME ft or UP A button The selected icon 15 now shown 1 the left side of the HOME screen and the instrument is again ready for measuring e Other functionality regarding the lower icon row Activating an already selected icon will cancel the activation and remove the icon from the main display and no icon will be saved by the next measurement When the meas urement display is selected with the MENU button or the BACK button the lower icon row will be the same as when the measurement display was last shown Pressing DOWN and then UP in the HOME screen will show the row with the currently selected icon marked Pushbuttons ox When t
9. bat tery by using an inverter When storing the instrument for a long period of time fully charge the battery It is possible to install a larger battery pack to increase the operating time for the instrument This is also recommended when using a GPS DELTA LTL X Retrometer 41 Replacing the battery A worn out battery will not hold a charge very long When the battery is worn out it must be replaced The user can do this The battery is located in a compartment at the Loosen the big screw at the battery cover rear of the tower To replace the battery re You can now remove the cover move the screws from the back cover and re move the cover COM 15 DC Lift out the battery of the compartment Press the snap on clip on the connector and carefully withdraw it from the printed circuit board The battery can now be removed and replaced Refit in reverse order Please check your local regulations for disposal of the battery THE BATTERY SUPPLIED WITH LTL X IS SPECIALLY DESIGNED FOR THE INSTRUMENT TO ENSURE SAFE USE IF A NON DELTA SUPPLIED OR APPROVED BATTERY IS USED WITH LTL X DELTA CAN TAKE NO RESPONSIBILITY FOR ANY DAMAGED CAUSED DUE TO THE PERFORMANCE OF THIS BATTERY 42 LTL X Retrometer DELTA Battery status The capacity of the battery can be seen from the icon in the upper icon row Indicates that the battery is fully charged Indicates that the capacity of the battery is high to fair
10. button Press the OK button to accept the name The instrument will now return to the HOME screen Enter a new series ID Do the same as above but select NEW from the series list or select MENU SERIES ID 30 LTL X Retrometer DELTA ENTER ID Proceed by spelling the series name see Editing pg 38 Removing a series ID This will remove the series ID from the selection list Press the MENU button and select SERIES ID DELETE DELETE SERIES ID 1 ROAD 2 HIGHWAY 1 HIGHWAY 2 HIGHWAY 3 1 1104 2001 11 04 2001 Use UP or DOWN to select the series that should be deleted Accept by pressing the OK but ton A confirm menu 15 shown DELETE SERIES YES ALSO IN LOG Select with UP or DOWN and accept with OK Note All measurements in the selected series will be erased from the log setting the road marking icon Six of the 24 icons symbolizing road markings can be programmed as individual presets for each series ID and will be ready for selection when a series ID 15 selected Press the MENU button and select SERIES ID to enter the SERIES ID menu SERIES ID a OK ACTIVATE OFF ENTER ID EDIT DELETE PRESET ROAD MARKINGS ee HIGHWAY 10 used 6 200 This menu shows in the bottom of the display the name of the actual series the number of used series out of the total and the current preset row of markings for the actual series To edit the preset marki
11. control calibration unit 10 LTL X Retrometer DELTA Mount the reference calibration unit and perform a complete traceable calibration Replace the reference calibration unit with the control calibration unit and make a normal measure ment Label the Control Calibration unit with the value and the date Warnings and errors An error or warning icon will appear in the upper row of the display if the LTL X detects a problem Press the UP button A to get a description of the most serious error or warning Now press the OK button to display a total list of all errors or warnings related to the meas urement Sound setting Press the MENU button a and select SETTINGS SOUND Select KEY CLICK or SOUNDS to set the individual sound levels for key click and warning error sounds Use the UP A or DOWN button to set the level Accept the setting by pressing the OK button A loud ad ditional beep can be selected by pressing the OK button when BEEP is highlighted Miscellaneous The HOME screen can be activated at any time by pressing the HOME button Reset log Press the MENU button a and select LOG CLEAR DATA Now select from the menu LAST ALL or SERIES Date and time Press the MENU button and select SETTINGS DATE amp TIME Use the UP and DOWN buttons to set the time and date Accept the setting by pressing the OK button Power save Press the MENU button and select SETTINGS AUTO OFF Use Aand to edit the auto tur
12. the list shown Only the log entries will be erased The series will still be available in the series select list Amending clear data The clear all option can be amended but only until a new measurement is taken To amend clearing all data again choose LOG CLEAR DATA ALL DATA If you have not taken meas urement after having deleted ALL DATA the menu will now look like this CLEAR ALL DATA YOK YES UNDO Simply choose UNDO and OK to restore the log DELTA LTL X Retrometer 33 Viewing the log Press the MENU button and select LOG VIEW LOG VIEW LOG LAST DATA This menu gives the possibility to view or print data from either the last measurement from all measurements or from one of the measure series stored in the log The figure below shows the ALL menu RL TIME STATUS gt 12 34 55 1 2 3 4 5 4 1 2 3 4 5 2 1 2 3 4 5 1 1 2 3 4 4 2 1 2 3 4 27 2001 NOV 12 f PRLC Avg 159 1 4 HIGHWAY 10 5 5 In each line the menu shows the RI value the time and the status starting with the most re cent measurement To view a list of the individual errors warnings in the status print out the measurement see below By pressing the DOWN or UP button the individual measurements are highlighted and corre sponding data are shown in the bottom of the display These data are date users initials av erage information series ID number of measurement total measurement
13. value is defined as a circle s radius when centered at the true position encloses 50 of the data points in a horizontal scatter plot Thus half the data points are within a 2 D CEP circle and half are outside the circle Setup Setup is used to separate between advanced or basic users The basic settings reduce the num ber of menus available to the user For example in basic menu operation users cannot clear the log The following menu points can be selected in basic mode Settings user date amp time display sound setup Log status Diagnosis Print output 28 LTL X Retrometer DELTA To change the setup press MENU and select SETTINGS SETUP Pressing OK will toggle be tween ADVANCED and BASIC To return from setup press BACK LEFT or HOME Auto off To save power the instrument can be programmed to automatically shut off if not used When communicating with RSC program the instrument will not power down automatically Press the MENU button and select SETTINGS AUTO OFF Use UP and DOWN to edit the auto turn off time The off time can be set from 60 300 sec in intervals of 60 sec or it can be deactivated OFF DELTA LTL X Retrometer 29 SERIES ID Working with series ID name The purpose of a series ID The series ID 15 a label For example it could be the name of the road Although measurements can be performed without selecting a series ID it is convenient to group name the measurements for each g
14. A LTL X Retrometer User select user initials 1D If a user icon hi is displayed in the upper icon row on the measuring display press the UP button if necessary or to mark the user icon Press the OK button to enter the user select menu For further information see Selecting a user id pg 21 Series ID select name From the HOME screen measure display press the UP button Ato mark the road icon Press the OK button to enter the series ID select menu Select a name from the list using UP or DOWN and accept with OK Calibration The instrument is supplied with two calibration units a reference calibration unit black and a field calibration unit red The reference calibration unit is factory calibrated and traceable to PTB The field calibration unit must be calibrated against the reference calibra tion unit by the user at suitable intervals The reference calibration unit is stored in the black protection box and the field calibration unit in the grey protection box Two steps are required for a complete calibration zero calibration and reference calibra tion The instrument will guide you through the procedure Calibration procedure e Zero calibration Press the CALIBRATION button once Mount the calibration unit underneath the front end of the instrument by tilting the instrument slightly backward Make sure that the end pins on the side of the calibration unit fit into the slots in the LTL X It 15
15. C program see pg 40 There are 24 icons to select from Six of the icons can be programmed as individual presets for each series see pg 31 and will be ready for selection when a series is selected 22 LTL X Retrometer DELTA The procedure From the HOME screen press the DOWN button Then use the LEFT or RIGHT button to highlight the wanted icon Pressing DOWN steps through and displays the four icon rows Pressing UP will return to the HOME screen without selecting a new icon Pressing the OK button will activate the selected icon The selected icon is now shown in the left side of the measuring field and the instrument is again ready for measuring Deactivating the profile icon Activating an already selected marking icon will cancel the activation and remove the icon from the main display Setting the date and time Date and time is always shown in the display Every measurement taken is marked with the date and time so it is essential that the settings are correct Press the MENU button and select SETTINGS DATE amp TIME Press OK and the time format sub menu 15 shown Setting the time format DATE amp TIME a OK TIME FORM 12 DATE FORM Y MMM D SET TIME 02 34 56 PM SET DATE 2001 NOV 24 Press OK when TIME FORM is highlighted The time format menu is shown TIME FORMAT Highlight the preferred time format by using UP or DOWN Press OK to accept Setting the date format DELTA LTL X Ret
16. D DATE amp TIME LOG AVERAGE DIAGNOSIS PRINT OUTPUT DISPLAY CONTRAST BACK LIGHT SERIES ID SOUND VOL PRESET MARK LOG CLEAR DATA CLEAR LOG LAST DATA ALL DATA SERIES DATA SERIES DATA DIAGNOSIS INSTRUMENT BATTERY MMC OMU MIS Figure 5 Menu tree 20 LTL X Retrometer DELTA SETTING UP FOR MEASUREMENTS Selecting a user ID The user ID user profile 15 used to identify the operator and 15 saved in the log together with each measurement It consists of up to four characters for instance initials of the operator s name If enabled it can be seen at the lower left side of the measurement display Measure ments can also be taken without a user ID Eight user 10 can be stored in the instrument Certain instrument settings are stored individually for each user Selecting a user will restore these settings Following settings are stored e All sound settings SMART key Back light timer Instrument auto off timer Advanced basic menu setup The select procedure ID 1 Ifa user select icon Ky is not seen in the upper icon row Press the MENU button and select SETTINGS USER SELECT to display the SELECT USER menu 2 Ifa user select icon is seen in the upper icon row Press the UP button Then if necessary use the LEFT or RIGHT button to highlight the user icon Press the OK button The SELECT USER menu is shown SELECT USER Now use UP or DOWN button to highli
17. LTL X RETROMETER Manual On site quality control of road markings amp road surfaces in accordance with CEN ASTM specifications DELTA Venlighedsvej 4 2970 H rsholm Denmark Tel 45 72 19 40 00 Fax 45 72 19 40 01 DISCLAIMER The information contained in this document is subject to change without notice DELTA LIGHT amp OPTICS MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL INCLUD ING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHAN TABILITY AND FITNESS FOR A PARTICU LAR PURPOSE DELTA LIGHT amp OPTICS SHALL NOT BE LIABLE FOR ERRORS CONTAINED HEREIN OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE FURNISHING PERFORMANCE OR USE OF THIS MATERIAL Caution Changes modifications not approved by the re sponsible party could void the user s authority to operate the equipment NOTE This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user wi
18. RF capacity is low You should recharge the battery Cx The battery is almost empty The battery voltage is shown as it was at the last measurement in idle when the instrument is on but not taking a reading and in loaded mode when xenon lamp 15 charging Select the battery icon with UP LEFT and OK The display will then show the voltages Fuses Two fuses are located in the battery compartment The charging fuse protects the battery against short circuit and other errors in the charging connector charger or charging system The battery fuse protects the battery and electronics against short circuit and other errors in the electronic system Always replace a blown fuse with one of equal rating See Electrical Characteristics pg Error Bookmark not defined 10 change the fuses you need access to the battery compartment See replacing battery pg 42 Carefully unscrew the plastic cap fuse holder by using e g a coin Pull out the fuse from the cap and insert the new one and reassemble Charger fuse Main fuse Lamp The lamp is a long life xenon type and requires no maintenance Only trained personnel should replace the lamp when replacement is required DELTA LTL X Retrometer 43 Calibration unit Reference The road marking is simulated by a piece of white ceramic the reference mounted on an aluminum profile Ceramics have very stable optical properties because of the smooth surface The reference Zero Sig
19. WAY 10 o EO Measurement result 153 User initials S h pric oO Average of a series of measurements Date and time Measurements taken of total Figure 4 Display Display and keyboard layout The user interface consists of a rectangular display surrounded by push buttons The display has two main modes the measurement display HOME screen and the menu dis play The instrument will start up with the measurement display shown The display area 15 divided into four areas a large main display in the middle an icon row at the top a message or cap tion field underneath and an icon row at the bottom Measurement display Here the last measured RI value is presented with large digits together with other information On the graphic above all possible information is shown in the display If a function is deac tivated it will not be shown The actual date and time is always shown Upper icon row The upper row of icons is accessed by pressing the UP button A One of the icons 15 then highlighted inverted and can then be activated by pressing the OK button The other icons in the row can be accessed by using the LEFT lt 4 or RIGHT buttons The meanings of the icons are from left to right e Series ID name selection e User ID initials selection Can be switched off see pg 21 e Error warning alarm Will be shown in case of an error warning see pg 39 e GPS indication see pg 26 e
20. ___ __ 17 CIS playera e A aaea e E 17 UPPL ON TOW maraa A 17 EON CP AC OO 18 18 PG ae UU A 20 SETTING UP FOR IN ES 21 auser 21 Sclectine aTOad 22 he Gale am 23 conas and 25 Stes He sound NE Ve 25 CCEA TAM GAS 25 SMART Ke 25 AUX TUMCHOMS EN E A 26 26 29 i E 30 Working wath 30 PCN AV 30 SCLICS 30 SND 30 Reno vino series 31 the road marking
21. e protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense LTL X Retrometer DELTA SECTION 7 OPERA TING INFORMA 7 ELE A OCCU OM 7 EEA Te PEAT 8 8 9 Important guide lines for the correct use of the LTL X 12 SECTION 14 GENERAL TNFOR 14 Themes re TAC 14 Opti rese ______ _ _ 15 NOES ONCOL gt 16 Hig temper alike Saesaare 16 SEC TION 17 THE USER INTERFACE 17 Display and key DOarG lay
22. e signal has not been corrected and thus would not improve the accuracy of the position data In some regions 1 the northern parts of the continent the position of the satellites over the equator can make it difficult to receive the signals when trees or mountains obstruct the view of the horizon EGNOS is the European counterpart of the WAAS satellite and the same limitations apply Press the MENU button and select SETTINGS AUX highlight DGPS and press the OK button and the DGPS sub menu is shown AUTO will automatically search for a DGPS satellite When DGPS correction 15 selected the data is not necessary corrected immediately it can take time to receive and process the correction signal LTL X will show if the correction data is used The GPS icon in the upper row of the display will include D If the GPS icon 15 selected a line in the GPS screen will show the DGPS system used If no correction system is selected N A will be displayed The log data will also record the status of the correction system When saving the log using the RSC2 program the column FIX will show the value 2 if the DGPS correction was used DELTA LTL X Retrometer 27 It is not possible to see which correction system was used For further information about the GPS system and WAAS EGNOS webpages can be found that describe the systems and how they function Map datum The default map datum system is WGS84 There are more than 200 d
23. ecessary to disassemble the light trap to clean it efficiently Using a fine brush clean pressurized air or a soft paper tissue cloth and some window cleaning liquid can do the clean ing Calibration The LTL X is factory calibrated and very stable but a calibration should always be carried out before starting a new series of measurements The instrument is supplied with two calibration units a reference calibration unit black and a field calibration unit red The reference calibration unit is factory calibrated and traceable to PTB The field calibration unit must be calibrated against the reference calibration unit by the user at suitable intervals The reference calibration unit is stored in the black protection box and the field calibration unit in the gray protection box Figure 6 Calibration Calibration Two steps are required for a complete calibration zero calibration and reference calibra tion The instrument will guide you through the procedure Calibration procedure e Zero calibration Press the CALIBRATION button once Mount the instrument upon the calibration unit This is done by tilting the instrument slightly backward and then insert the unit underneath the front end of the instrument Make sure that the pins on the side of the unit fit into the slots in the LTL X It is important that the calibration unit faces with the dark opening towards the in strument tower The display will show the correct ori
24. ee pg 48 In this operation the illumination measurement field is placed just in front of the horizontal base cover allowing the continuous wetting Centre of illumination field i Observation field 6 10x60 mm liurnination field approx 200x45 mm Figure 2 Measurement field 14 LTL X Retrometer DELTA Continous wetting operation wet night accessories mounted Approx 322 mm 13 7 Observation field Illumination field approx 610x60 mm approx 200x45 mm Figure 3 Measurement field with wet night accessories mounted The tower of the LTL X contains the illuminating and observation system and the control electronics At the bottom of the tower an optical system with mirror directs a beam of light toward the road surface through a dust protection window A polymer shielding covers the measuring area for normal operation see above The LTL X 15 controlled by multiple microprocessors It 15 operated with an extractable key board located at the top of the retrometer It executes the measurement automatically by push of a button and presents the result on a display The result is automatically transferred to the internal memory The measurement along with its corresponding time date and other data can be printed using the built in printer Optical principle The optical system in the LTL X is covered by a patent pending A long life xenon lamp in the top of the tower generates the light
25. elect SERIES to view the list of series VIEW SERIES 1 ROAD 2 HIGHWAY 1 HIGHWAY 2 HIGHWAY 3 1 1104 2001 11 04 2001 The menu shows a series ID in each line By pressing DOWN or UP the individual series are highlighted and corresponding number of measurements taken and the date interval for the measurement are shown in the bottom of the display These data are the number and the date interval for the measurement taken in the series Highlight a series and press the OK button to view the individual measurements To return to the VIEW SERIES menu press the OK or the BACK button Printing Highlight a series name and press the PRINT OUT button to print all the series data from the highlighted measurement to the end newest data of the log Highlight a measurement in the individual display and press the PRINT OUT button to print the log from the highlighted measurement to the end of the series The printing can be aborted at any time by pressing and holding the PRINT OUT button or the ON OFF button for about 0 5 sec Release the button as soon as the printing stops Log status To see how much of the memory is used press the MENU button and select LOG STATUS LOG STATUS LOG USED 104 LOG FREE 1396 SERIES USED 15 SERIES FREE 235 DELTA LTL X Retrometer 35 In the case shown above there 104 measurements in the log leaving room for 1396 more There are 15 measuring series
26. en the wheels Figure 10 Mounting the wheels 50 LTL X Retrometer DELTA APPENDIX COMMUNICATION FACILITIES Communication specification LTL X is equipped with a USB connection that enables the use of standard Windows PC for downloading measurement records from the internal data log The PC connects to the LTL X using the USB device connector on the rear of the instrument and a cable coming with the instrument DELTA LTL X Retrometer 51 APPENDIX B SPECIFICATION General characteristics 1 24 2 29 EguivalentobDservor distineo 30 OODSELYV aU ONAN GUL Al spread 0 17 Type 30m CEN Illumination angular spread horizontal 0 33 Hilumination aneular spread 7 0 17 Field of measurement 50 mm 2 0 inch Lenet my 200 mm 7 9 inch Min reading med m 1x haat Max reading medi gt eee eee 2000 EN 300440 1 V1 6 1 2010 301489 1 V1 8 1 2008 EN 301489 3 V1 4 1 2002 ee ee 60950 1 2006 60950 22 2006
27. enance It uses a thermal paper roll width 57 5 0 5 mm 2 26 in diameter 31 mm 1 22 in Replacing paper Replacing the paper is simple First pull the little lever out with your finger and the cover will open into the paper roll compartment Insert the new paper roll and let a short paper tail hanging out at the top Close the cover with a firm push and with some of the paper sticking out DELTA LTL X Retrometer 47 Mounting the wet night rails for rain measurements In order to move the measurement field outside the horizontal base cover as shown on figure 3 page 15 the two wet night rails should be mounted You will find two wet night rails in the carrying case Be aware of that there 15 a left and a right one Bushing for the wet night rail Mount the wet night rails by insert the rails into the bushing underneath the LTL X 48 LTL X Retrometer DELTA Fasten the wet night rails in the lid with the screws delivered with the rails Make sure that the LTL X is resting on the rails before lightening the screws The Wet night rails are now ready for use After use dismount the wet night feet by reversing above operations DELTA LTL X Retrometer 49 Mounting the wheel unit option A wheel unit can be mounted in the rear of the instrument for easy transportation during heavy use The wheels are mounted easily to the rear by fastening the two nuts mounted on the wheel block Nuts for fast
28. entation of the calibration unit Make sure that the calibration unit and the light trap are clean Press the OK button to start zero calibration During calibration the lamp will flash a number of times DELTA LTL X Retrometer 45 Figure 7 Placing the calibration normal e Reference calibration Now the instrument is ready for the next step and the display will tell you to rotate the calibration unit so that the white face is facing the instrument tower Again it is important that the pins on the side of the unit fit into the slots in the LTL X Press OK to begin the reference calibration Check the value displayed and if necessary adjust the calibration value shown in the display so it matches the value stamped on the calibration unit Press the OK button to perform the calibration The calibration procedure is now complete Remove the calibration unit and store it properly Press OK to return to the measurement display The instrument automatically compensates for zero signal leakage and other known errors and calculates a calibration factor This process is fully automatic If the calibration routine is followed precisely the retrometer will now display true Always store the reference calibration unit in a dry and clean environment 46 LTL X Retrometer DELTA Printer The printer is a high speed high quality mini thermal printer It has only a few moving parts and does not require any special or periodic maint
29. eographical spot road or part of a road for easier recognition of each measurement The series ID for such a group of measurements will be saved in the log together with the measuring results The ID must be selected prior to the measurement The individual measurements in a group can further be labeled by selecting a road marking icon see pg 31 corresponding to the actual road Measurements taken with the same series ID are automatically marked with a unique number The instrument can store 250 series D s The series ID can be entered manually but it is far more convenient to enter the series D s in the RSC program see pg 40 and transfer them to LTL X Activate To use the series ID it must be activated Press the MENU button and select SERIES ID ACTIVATE By pressing OK you can toggle between ON and OFF to activate or deactivate the series ID function Press the HOME button to return to the HOME screen When the series D is off no ID is shown in the display and ID s in the log marked No Selecting a series ID From the HOME screen press UP If necessary use the LEFT or RIGHT button to highlight the road icon 2 Press the OK button The SELECT SERIES menu is shown SELECT SERIES 470 NEW ROAD 2 HIGHWAY 1 HIGHWAY 2 HIGHWAY 3 Now use the UP or DOWN button to highlight a series name If the symbol gt is displayed in the top right corner then more series can be accessed by pressing the RIGHT
30. er Serial output 37 Series id 28 Setting the log type 34 Setting the preset profiles 29 Setup 26 Advanced 26 SMART key 23 Sound level 23 Specifications 50 Stray light 14 Time 21 Traceable 42 U Upper icon row 15 User 10 19 User interface 15 User reset 38 Users 26 V View Series data 33 Viewing the log 32 W Warning icon 37 Warnings 37 Wheel unit 48 Window 39 WAAS 25 13 Z Zero calibration 43
31. erties of road markings in car headlight illumination the value coeffi cient of retroreflected luminance 15 used is a measure of the lightness of the road marking as seen by drivers of motorized vehicles in car headlight illumination The road is illuminated at an angle of 1 24 and the reflected light is measured at an angle of 2 29 which corre sponds to an observation distance of 30 meters This is relevant for a motorist s viewing sit uation under normal conditions is an important factor in the ON SITE quality control of road markings The operation of the retrometer is very simple and requires minimal instruction The LTL X measures the retroreflectivity and calculates according to international agree ments Results are presented in plain text on a large graphic display Error messages or warn ings are shown in the display in case of any problems during use The built in printer and memory provides registration of measurements with corresponding date and time and other important data The following data is also registered if enabled DELTA LTL X Retrometer 7 e Name of measuring series road name e Profile icon for road marking e User initials GPS data if installed Communication with a PC using the RSC program see pg 40 allows for data exchange with other PC programs extended command calibration diagnostics and other facilities A rechargeable NiMH battery powers the LTL X giv
32. f the readings fixed or moving average options Reason A road markings retroreflectivity varies from area to area It is not unusual to see variations of 5 20 when the instrument is moved even less than 10 mm 2 in either di rection Obstructions in front of the LTL X Ensure the pavement marking to be measured 15 clear of any obstructions at least 1 meter 40 inches in front of the LTL X For example do not stand in front of the instrument when tak ing the reading and do not have anyone else standing in front of the instrument while taking the reading Reason The observation field of the LTL X extends beyond the front opening of the instru ment RPM s retroreflective materials in front of the LTL X Recommended Procedure Ensure there are no retroreflective materials not belonging to the marking at least 1 meter 40 inches in front of the LTL X For wet road markings this dis tance is 2 meters 80 inches Examples of such materials are raised pavement markers high visibility clothing and shoes with retroreflective properties Whenever the user suspects that materials ahead affect the reading the material should be covered with a dark cloth Reason The observation field of the LTL X extends beyond the front opening of the instru ment and such retroreflective materials can cause false readings 12 LTL X Retrometer DELTA Protection of the display display shield For the protection of the display and longevity of the instr
33. fication of this AoC 80_LTL X US_AoC 001 We DELTA Dansk Elektronik Lys amp Akustik Venlighedsve 4 H rsholm DK 2970 H rsholm declare under our sole responsibility that the product Product name LTL X Retrometer Trade name DELTA LTL X Type or model All types pursuant to the referenced trade name to which this attestation relates is in conformity with the essential requirements and other relevant requirements of 47 CFR FCC Part 15 The product is exempted from other specific FCC rule parts than the general rule parts 15 5 and 15 29 pursuant to specific rule part 15 103 c as it is intended solely for use as industrial test equipment However the product is verified according to the specific rule parts 47 CFR Part 15B subpart 15 107 Class A 47 CFR Part 15B subpart 15 109 Class A The equipment is safety tested with CB Scheme certification under the internationally harmonized safety standard IEC 60950 1 2005 2nd Edition Am 1 2009 Supplementary information The equipment incorporates a GPS module Technical file held by the undersigned Place and date of issue of this AoC July 1 2012 Signed by or for the manufacturer Signature of authorized person Name in print Pernille Veje Vice President QA RA amp E NOTE This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonabl
34. for the measurements After a field stop the light 1s collimated by a lens and deflected through a mirror toward the road The reflected light from the road uses the same mirror and lens Between the lens and the pho to detector field aperture stops define the observation area The illumination field 15 inside in the observation field This 15 important to assure correct measurement on profiled markings spectral correction is achieved by use of advanced optical filters DELTA LTL X Retrometer 15 Notes on error sources Stray light can occasionally enter the instrument but will be insignificant under normal meas urement conditions Before each measurement the LTL X automatically evaluates the leak age and compensates for it before the readout In case of a significant leakage level a warning or error message 1s given and special precautions may be necessary Instrument leak drift and offset errors are compensated by means of data obtained during the calibration procedure It is very important to keep the light trap the dust protection window and the ceramic on the calibration unit clean The LTL X illumination angle is 1 24 relative to the road surface Because of this small an gle accurate placement on the road is important Avoid pebbles and abnormal irregularities The LTL X must be parallel and in contact with the marking surface The LTL X retrometer is a rugged instrument but it is an optical instrument and must be han
35. ght a user name Press the OK button to accept the name In case 1 press the HOME button to return to the HOME screen In case 2 the apparatus will automatically return to the HOME screen Changes made to the above mentioned individual instrument settings are automatically stored in the selected user ID User names can be edited from the menu SETTINGS USER EDIT see editing pg 38 DELTA LTL X Retrometer 21 Selecting OFF will deactivate the user function and set all individual instrument settings to default Clear user SELECT EDIT CLEAR SEL AT START NO Clearing the user id will rename the user name to its default name U1 to U8 and all individ ual instrument settings are set to default SELECT USER Select at start USER JOHN SELECT EDIT CLEAR SEL AT START YES ee Enabling SEL AT START will force the user to select a user ID each time the LTL X 15 turned on The last used user ID 1s automatically highlighted Press the MENU button and select SEL AT START Press OK to toggle between YES and NO selecting a road marking icon The purpose of a road marking icon The road marking icons are used as labels for the individual measurement corresponding to the measured road marking and will be saved in the log together with the measuring result The icon will then be presented together with the corresponding measurement when viewing the log see pg 34 or by using the RS
36. he OK button or leave unchanged by pressing BACK LEFT or HOME The BACK LIGHT time is changed in a similar way WARNING Using the backlight will drain the battery faster Setting the sound level Press the MENU button and select SETTINGS SOUND Select KEY CLICK or SOUNDS to set the individual sound levels for key click and warning and error sounds Use the UP or DOWN button to set the level Accept the setting by pressing the OK button or leave un changed by pressing BACK LEFT or HOME A loud additional beep can be selected by pressing the OK button when BEEP is high lighted This beep will be heard when a measurement cycle is completed It lets the user know that it is ok to lift the instrument and move it to a new location Setting the language Press the MENU button and select SETTINGS LANGUAGE Use the UP or DOWN button to select a language Accept by pressing the OK button or leave unchanged by pressing BACK or LEFT English can always be selected at power up by pressing and holding the HELP key before ON is pressed This will override any language selection Setting the SMART key function This button is user programmable to one of several functions e g to clear the last meas urement Press the MENU button and select SETTINGS SMART KEY DELTA LTL X Retrometer 25 SMART KEY SELECT SERIES CLEAR LAST MEAS RESET AVERAGE SER ID ON OFF Use the UP or DOWN button to select the SMART key function Accept by press
37. he message row shows MEASURE press the OK button to take a measurement In most other cases pressing the OK button will activate a highlighted selection ON OFF Turn the instrument ON or OFF Press the button to turn the instrument To turn it OFF hold down the button for about half a second until the display shows a farewell message When the instrument is on a short press on the button will turn on the display backlight Gf enabled see pg 25 HOME D Bring you back to the measurement display BACK Backward one step in the menu canceling new settings which has not yet been confirmed by the OK button In most cases the LEFT button has the same function 18 LTL X Retrometer DELTA HELP Present a context sensitive help text Another press on the button will open up a general help menu Menu a Selects the top level of the menu tree the main menu Use the UP and the DOWN buttons to scroll through the menu items Press OK to select the highlighted item In some cases it opens up future submenu levels SMART This button is user programmable to one out of several functions e g to clear the last meas urement see pg 25 CALIBRATE Starts the calibration wizard see pg 45 PRINT OUT Print out the last measurement or selected parts of the log to the internal printer or send data to the communication port see pg 39 DELTA LTL X Retrometer 19 The menu tree MAIN MENU SETTINGS SETTINGS USER SERIES I
38. ifferent map datums that can be selected The selected datum can be seen in the GPS menu The datum information is also stored in the log Warning Selecting the wrong map datum can result is substantial position errors For further information on selecting the correct map datum system please contact your local mapping software distributor Contact your local distributor for futher information on changing the map datum in LTL X More about the GPS The GPS unit will typically acquire satellite signals and process a position fix in 5 40 se conds If the GPS receiver has been turned off for a long period of time the time to first fix will take longer The GPS engine used have a navigation performance of 2 5 m The precision of the GPS receiver in the LTL X 15 determined by many factors A few listed below e Signal obstruction The GPS receiver requires a clear view of the sky Trees build ings and other environmental objects can affect the satellite signals e Satellite constellation and geometry e Multi path reflection of signal from buildings etc The Horizontal Dilution of Precision is a number that indicates the quality and preci sion of the received GPS data low values are better than high When the GPS is used the operating time for the LTL X will be decreased and you must charge the battery more often 9 CEP Circular Error Probable A statistical measure of the horizontal precision The CEP
39. important that the calibration unit faces with the dark opening toward the instrument tower The display will show the correct orientation of the calibration unit Make sure that the calibration unit and the light trap is clean Press the OK button to start zero calibration black calibration During calibration the lamp will flash a number of times e Reference calibration After zero calibration the instrument is ready for the reference calibration white calibra tion The display will tell you to turn the calibration unit so that the white face is facing the instrument tower Again it is important that the pins on the side of the unit fit into the slots in the LTL X Press the OK button to start reference calibration Check the value dis played and if necessary adjust the calibration value shown in the display so it matches the value stamped on the calibration unit Press the OK button to perform the calibration The calibration procedure is now complete Remove the calibration unit and store it properly Press OK to return to the measurement display For further details see pg 45 Control Calibration Use in case of doubt during on site measurement Follow the traceable calibration procedure using the red control calibration unit Use the RI value from the control calibration unit label Transfer of calibration value At regular intervals the traceable calibration value must be transferred from the reference cal ibration unit to the
40. in the log leaving room for 235 more Setting the log type You can choose between two different log types Erase oldest The oldest measurement will be overwritten by the newest measurement Warn At Full A warning will be issued when the log is full and the measurement will not be saved Press the MENU button and select log Highlight the line LOG TYPE by using the DOWN but ton CLEAR DATA VIEW LOG STATUS LOG TYPE ERASE OLDEST By pressing the OK button you can change the type of response when the log is full 36 LTL X Retrometer DELTA OTHER SETTINGS Average function An average function can be activated showing the average of the measured RI value calculat ed over a selectable number of measurements 2 to 25 The average mode can be fixed or moving In moving mode the average 15 always calculated from the last N measurements where N is the selected number of measurements In fixed mode the averaging will start over again when N measurements have been taken The average data is shown in the HOME screen at the lower right corner see picture pg 17 The average value is not stored in memory Press the MENU button and select AVERAGE AVERAGE AVERAGE ON TYPE MOVING NUMBER 10 RESET AVERAGE Use the UP or DOWN button to highlight the first line Press the OK button to toggle be tween AVERAGE ON and AVERAGE OFF TYPE Highlight the second line and press the OK button to toggle between type
41. ing hours of measurement capacity A mains powered battery charger power supply is supplied as standard The instrument can also be charged from a 12 18V source such as a car battery using an adapter LTL X retroreflectometer features Portable self contained instrument Small dimensions low weight Ergonomic operation height Fast measurement completed in less than 1 sec Measuring on dry and wet surfaces or the continuous wetting measurement method Will measure flat textured amp profiled markings Built in thermal printer Fully documented measurements with automatic data storage user and series identi fication for labeling and grouping measurements Audible signals during use RSC PC software for data exchange extended control etc Log data can be ex ported to applications such as Microsoft Excel Easy calibration procedure Traceable and accredited calibrated reflection standard User replaceable battery Fast charging approx hour Rechargeable from power adapter or a car battery using an adapter Average 2 25 readings Multiple languages Wheel unit Options GPS for precise logging of measuring location Large battery pack with more capacity for extended use between charges LTL X Retrometer DELTA Getting started Buttons HELP ON OFF MENU EJ SMART HOME ES PRINT OUT UP 4 LEFT 1 RIGHT JK center amp 2 UVVIN Figure Buttons Height adjustment Before using
42. ing the OK button ced lt The selected function is now accessed every time is pressed Setting the aux functions The Aux function is used to control auxiliary built in equipment e g a GPS receiver AUX GPS TIMER OFF DGPS WAAS Using GPS optional The GPS receiver is mounted inside the instrument drawing its power from the internal bat tery The GPS system is used to supply position data latitude and longitude to the log to gether with the measurement data If activated a GPS icon is shown 1 the upper icon row see picture pg 17 The icon will display the quality reliability of the GPS signal If DGPS Differential GPS is selected and a valid DGPS satellite is recognized D is added to the icon This 15 illustrated in the FAIR recep tion icon below In order to minimize the time required to get a GPS position fix after the LTL X has been turned on a GPS TIMER can be activated This timer will keep the GPS unit powered up for 30 minutes after the instrument has shut off If the instrument 15 turned back on within 30 minutes the GPS will acquire a valid fix quickly Below is an explanation of the GPS icon states The GPS Horizontal Dilution Of Precision value is below 5 D FAIR 4 t The GPS value is larger than 5 but the GPS can FIX NO 4 The GPS cannot FIX weak or signal The GPS position data HDOP value and the number of satellites used in the po
43. ll be required to correct the interference at his own expense Rev 15 August 2012 SW ver MMC V3 04 up LTL X Retrometer DELTA R amp TTE Declaration of Conformity DoC Unique identification of this DoC 80_LTL X EU_DoC 001 We DELTA Dansk Elektronik Lys amp Akustik Venlighedsve 4 H rsholm DK 2970 H rsholm declare under our sole responsibility that the product Product name LTL X Retrometer Trade name DELTA LTL X Type or model All types pursuant to the referenced trade name to which this declaration relates is in conformity with the essential requirements and other relevant requirements of the R amp TTE Directive 1999 5 The product is in conformity with the following standards HEALTH amp SAFETY Art 3 1 a EN 60950 1 2006 A11 2009 A1 2010 A12 201 1 EMC Art 3 1 b EN 301489 1 V1 8 1 2008 EN 301489 3 V1 4 1 2002 SPECTRUM 3 2 300440 2 V1 4 1 2010 Supplementary information The equipment incorporates a GPS module The equipment is Class radio equipment which can be placed on the market and be put into service without restrictions Technical file held by the undersigned Place and date of issue of this DoC July 1 2012 Signed by or for the manufacturer Signature of authorized person Name in print Pernille Veje Vice President QA RA amp DELTA Retrometer 1V US Attestation of Conformity AoC Unique identi
44. lp 37 HOME screen 15 1 Illumination field 12 13 Initials 19 Int Internal printout 37 K Key See Pushbuttons L Label 28 Lamp 41 Language 23 Leakage See Stray light Light trap 43 Lightness of the road 5 31 Log status 33 Log type 34 Low battery voltage 7 Lower icon row 16 LTL X Retrometer 55 Maintenance 39 Map datum 26 Measure display 15 Measurement 12 Measurement field 12 measurement number 10 Mechanical characteristics 51 Menu display 15 Menu tree 18 Mounting the plates feet s for rain measurements 46 Moving 35 N Name 28 Navigation performance 26 New series 10 28 Notes on error sources 14 Display 14 High temp 14 Sun 14 O Observation field 12 13 Off timer 25 Operator 19 Optical principle 13 Output device 37 P Photo detector 13 Placement on the road 14 Power save 27 Preset profiles 29 Printer 45 Protection window 39 Pushbuttons 16 Back 16 Calibrate 16 Help 16 Home 16 Menu 16 OK 16 ON OFF 16 Print Out 16 SMART 16 R Rain measurements 46 Receiver 24 Reference 42 Reference calibration 44 Removing a series id 29 Replacing the battery 40 56 LTL X Retrometer DELTA Reset 38 5 7 Road icon 28 Road marking profiles 29 RSC program 38 S SEL AT START 20 Select at start 20 S
45. n off time Data exchange communication The RSC program developed by DELTA for use on a PC allows data to be exchanged be tween the LTL X and a PC See RSC program pg 40 DELTA LTL X Retrometer 11 Important guide lines for the correct use of the LTL X Positioning of the instrument on the road marking Select an area of the pavement marking that is level when taking readings The red dot on the side of the base cover indicates the center of the measurement field on flat markings The measurement field is approx 45 mm wide and 200 mm long Ensure the pavement marking to be measured 15 free of debris before taking measurements Make sure that the instrument 15 stable positioned Reason The LTL X has three support pads each with a small footprint An uneven marking or a small piece of gravel trapped under one of the pads will move the measurement field and affect the reading Taking the measurement Press the green OK button to take a single reading Do not put pressure on the handle when taking a measurement Reason Pressure on the handle can affect the measurement geometry and thus influence the reading Number of measurements For accurate readings do not take just one reading of a road marking Three readings will give a more accurate result than one reading Five readings will give a more accurate result than three readings etc Take the readings in adjacent areas of the marking Let the instru ment calculate the average o
46. nal Figure 5 Calibration normal To make sure that calibration of the retrometer is correct it is important that the ceramics and light trap on the calibration unit is clean and undamaged Always keep the calibration unit well protected If the ceramic is stained scratched or broken the calibration unit has to be replaced and cali brated In case of dust on the ceramics surface of the traceable reference the use of com pressed air 15 recommended for removal To clean the ceramic reference on the field calibra tion unit the use of a soft damp cloth is recommended if compressed air fails to remove the dirt If necessary use a mild household detergent A calibration transfer must always be com pleted after the field reference is cleaned It is necessary to have the traceable reference avail able to perform the transfer prior to cleaning the field reference To ensure reliable measurements it 1s recommended that the calibration unit be periodically recalibrated to a traceable standard DELTA Light amp Optics offers calibration traceable to PTB Physikalsich Technishe Bundesanstalt For information contact your distributor or DELTA 44 LTL X Retrometer DELTA Light trap The zero signal is simulated by a light trap mounted in the calibration unit in the opposite end of the reference It is made of two glossy and black plastic sheets mounted at an acute angle If clean this will provide very efficient light absorbing device It is n
47. ng icons highlight the PRESET ROAD MARKINGS and press the OK button to show THE SELECT PRESETS menu DELTA LTL X Retrometer 31 SELECT PRESETS lt gt a OK 56 52 25 Ca ITE 0 010 0 The bottom line shows the present six preset icons Use the LEFT RIGHT UP and DOWN buttons to choose a new icon for the first position ac cept by pressing the OK button and the cursor frame will move to the second icon Repeat for all six icons and the programming is done You can amend at any point by pressing the BACK button and start over again 32 LTL X Retrometer DELTA THE LOG Each time a measurement is taken data is stored to the log The following data are saved if enabled Measurement result incl average Date and time Name of measuring series road name and sequence number Road marking icon User initials GPS data if installed Status The instrument can store 1500 measurements in the log Clearing data in the log Press the MENU button and select LOG CLEAR DATA CLEAR LOG LAST DATA ALL DATA SERIES DATA This menu gives the option to clear data either the last measurement all measurements or one of the measuring series stored in the log By pressing the OK button you will be asked to con firm the erasure of the data CLEAR ALL DATA 470 If you selected SERIES you may select the series you wish to delete from the log from
48. ow The protection window 15 accessible from underneath of the instrument The protection win dow 15 coated with a high efficiency anti reflection coating Take care not to damage this coating when cleaning Compressed air or a fine brush can be used for removing loose parti cles dust If this is not sufficient the window should by cleaned using a soft paper tissue or cloth and some window cleaning liquid Battery The LTL X retrometer is powered by a 12V NiMH battery Under normal use this battery requires no maintenance However it is recommended to keep the battery fully charged A ful ly charged battery is more capable of withstanding degeneration A battery charger power supply is provided as a standard accessory for charging the battery from mains The output cable of the charger is equipped with a connector matching the con nector in the instrument Connect the charger to an outlet and the instrument If the instrument was turned off the display will now show a moving text that explains the charging state Charging Trickle charging Charging done Is Charged and Charge Error The battery icon in the upper right corner will also indicate the charging state No harm will result from leaving the charger connected after the charging process However the instrument must be disconnected from the charger when disconnecting the battery from the wall outlet In addition the battery can be charged using any DC supply from 12 18 V such as a car
49. rometer 23 Use UP or DOWN until DATE FORM is highlighted Press and the date format menu is shown DATE FORMAT YOK MMM DD YYYY MM DD YYYY DD MMM YYYY DD MM YYYY YYYY MMM DD YYYY MM DD YYYY DD MMM YYYY DD MM Highlight the preferred date format using UP or DOWN Press OK to accept Setting the time Use UP or DOWN until SET TIME is highlighted Press OK and the time menu is shown DATE amp TIME TIME FORM 12 DATE FORM Y MMM D SETTIME 02 34 56 PM SETDATE 2001 24 Now use UP or DOWN to set the hour Press the RIGHT button to select the minutes and repeat the procedure for minutes and seconds Press to accept the setting Note the time in this menu 1s not live but it will synchronize the time shown in the HOME screen Setting the date Use UP or DOWN until SET DATE is highlighted Press OK and the date menu is shown Now use the same procedure as for setting the time 24 LTL X Retrometer DELTA setting the display contrast and back light The backlight time display shows how long the display backlight will be turned on To turn on the light briefly press DISPLAY CONTRAST 5 605 Press the MENU button and select SETTINGS DISPLAY Select CONTRAST and press the OK button The figure will be highlighted DISPLAY CONTRAST 5 BACK LIGHT 60s Now use the UP or DOWN button to change the contrast Accept by pressing t
50. rubber boven Epoxy glass Printer Paper width dia 57 5 0 5 mm 31mm 2 26 in 1 22in DELTA LTL X Retrometer 53 54 APPENDIX DELIVERY LTL X Retrometer DELTA 3 30 meters 5 A Advanced 26 Amending clear data 31 Auto off 27 Aux functions 24 Average function 35 Fixed 35 Moving 35 Number 35 Reset 35 35 Back light display 23 Battery 39 Charging 39 maintenance 39 status 41 Battery status 41 Buttons See Pushbuttons Calibration 43 Calibration procedure 43 Calibration unit 42 Light trap 43 Reference 42 26 Clear user 20 Clearing data in the log 31 Communication 49 Communication specification 49 Continuous wetting 12 Contrast 23 Date 21 Datum 26 Deactivating the profile icon 21 Default settings 38 Delayed off timer 25 DELIVERY 52 Detector See Photo detector DGPS 25 Diagnosis 37 Display 23 Display shield 11 DELTA INDEX E Editing names 36 EGNOS 25 Electrical characteristics 50 Enter a new series id 28 Environmental characteristics 51 Error icon 37 Error sources 14 Errors and warnings 37 Fixed 35 Fuses 41 General 39 GPS 24 Activating the GPS 24 25 HDOP 26 GPS data 25 Group 28 He
51. s in that series and finally the marking icon selected if any Each time a measurement is taken a status information is generated If any error occurs the information can be interpreted by the warning error icon in the top line of the display The information is available until a new measurement is taken The status information is also stored in the log The status is a coded number where O zero indicates that every thing 15 ok GPS indicates that valid GPS data was stored with the measurement GPS NF indicates that the GPS had no fix during the measurement To get further information about the measurement the status number can be interpreted by the RSC program The arrow gt in the top indicates that there are more entries another page to view by either pressing the RIGHT button or using the DOWN button to roll the bar past the bottom Also if a left arrow lt appears 1 the top left corner you can access a previous page by press 34 LTL X Retrometer DELTA ing the LEFT button or rolling the bar out of the top by pressing the UP button To return to the log menu press OK or BACK Printing Press the PRINT OUT button to print the log from the highlighted measurement to the end of newest data the log The printing can be aborted at any time by pressing and holding the PRINT OUT button or the ON OFF button for about 0 5 sec Release the button as soon as the printing stops View series data In the log menu s
52. set a language the foreign language will return at the next start up Small factory reset This non destructive reset can be used to set parameters to factory standards but will not erase the log the series list the user list or the preferred markings Turn off the instrument Press and hold the button while turning on the instrument Factory reset This will set all parameters to factory standards and will also erase the log the series list and the user list Turn off the instrument a Press and hold the and buttons while turning on the instrument RSC program Main features of the RSC program delivered together with the LTL X e Transfer of log data to a pc e Export of log data to other programs e g spread sheets e Printing reports of the log data e Easy entry of series ID to make your measurement task efficient and reliable e Programmable user setup For more details see the separate user s manual for the RSC program found on the installa tion CD 40 LTL X Retrometer DELTA SECTION 4 MAINTENANCE General care The retrometer is constructed for outdoor use in ordinary good weather conditions It will stand moist weather with wet roads but caution must be taken against heavy rain and dirt The LTL X retrometer is an optical instrument and shall be handled as such Avoid shock and vibration if possible CAUTION To reduce the risk of electrical shock do not remove the cover Protection wind
53. sition calcula are saved in the log together with the Ry data Activating the GPS Press the MENU button and select SETTINGS AUX highlight the GPS line and press the OK button to toggle the GPS ON or OFF Press the HOME button to return to the HOME screen 26 LTL X Retrometer DELTA The GPS data be viewed from the HOME screen by pressing the UP button and then high lighting the GPS icon by using LEFT or RIGHT buttons Press the OK button to display the GPS data When the GPS data changes the display is updated If the GPS does not fix and a measurement is taken a warning menu appears You will be pre sented with the following options e Measure anyway e Skip measurement e Turn off GPS GPS delayed off timer Press the MENU button and select SETTINGS AUX highlight GPS TIMER and press the OK button to toggle the timer ON or OFF Press the HOME button to return to the HOME screen If the timer is activated a message showing the delayed off time is shown in the display when the LTL X is turned off DGPS WAAS EGNOS optional DGPS Differential GPS can improve the basic GPS accuracy If DGPS is used the GPS unit will receive correction data from the geostationary satellites such as WAAS EGNOS and others WAAS EGNOS reception does not require additional receiving equipment Currently WAAS satellite coverage is only available in North America Even though GPS users outside North America can receive WAAS th
54. the LTL X notice that the operating panel can be adjusted in height for ergo nomic considerations The height is adjusted by pressing the red knob on the front of the instrument and at the same time lifting the handle on the operating panel Release the knob and continue lifting until the handle locks Measuring Turn on the LTL X by pressing and holding the ON OFF button until the welcome message appears The display will then change to the measure mode An exception is when the instrument is set to ask for user identification see User select in this section Calibrate the instrument if necessary See Calibration in this section Place the instrument on the road marking Press the green OK button to take a measurement A measurement will be finished in approx 1 sec When the measurement is complete the Ry value will be displayed Data is automatically transferred to the data log If there is a problem with the measurement a warning icon or an error icon will pop up see Warnings and errors see pg 39 and an audible alarm will sound if enabled see Sound settings Measurements taken with a battery voltage that is too low are rejected or marked in the log and an error icon appears To print the last measurement data press the PRINT OUT button The Print Output function must be set to Int See pg 39 Printing can be stopped by pressing the PRINT OUT button or the ON OFF button for approximately 0 5 sec DELT
55. uments keep the display shield closed when the instrument is not used For further information please see section 2 FOR THE PROTECTION OF THE DISPLAY AND LONGEVITY OF THE INSTRUMENT KEEP THE SHIELD CLOSED WHEN THE LTL X IS NOT IN USE MIN 1m 40 TO RPM lt 4 gt A Remember LTL X is an optical precision instrument handle with care Keep the protection window and calibration unit clean Store in a clean and dry environment DELTA LTL X Retrometer 13 SECTION 2 GENERAL INFORMATION The measurement The LTL X retroreflectometer measures the Ry coefficient of retroreflected luminance pa rameter The parameter represents the brightness of road markings seen by drivers of mo tor vehicles by headlight illumination In the LTL X the illumination angle is 1 24 degrees and the observation angle is 2 29 degrees According to both ASTM and CEN standards this angle simulates a driver s viewing distance of 30 meters The instrument s illumination field is approximately 200 mm x 45 mm and the observation field is approximately 610 mm x 60 mm The dimensions are given for plane sur faces For real non planar road markings the fields are elongated The measurement field is identical with the illumination field The figure below shows the placement of the fields for normal and continuous wetting opera tions For continuous wetting measurements the instrument is raised 7 mm by mounting the wet night rails S
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