RetroSign GR1 & GR3 Retroreflectometer User`s Manual
Contents
1. 22 USB SDSCINCAUOM SERIE TEES ED 22 Bluetooth specification agent beds aged EN E shaves aged EU te sacs 22 APPENDIX C Quick Guide for RetroSign Extension Kit 24 e TR 24 ei REPERI 24 Operation with the RFID 0 24 RetroSign GR1 amp Retroreflectometer APPENDIX Di GP S 26 GPS ra nera si CCo rtr br cere 26 Controlling the GPS function from the menu 27 APPENDIX E RFID aiken 28 nig BE eee S 28 PRE ID SOC PEERS 28 APPENDIX Result and Info Pages examples 29 APPENDIX RSC for RetroSign GR1 amp 31 RSC Log durmp exarmJple 32 APPENDIX Using the Bluetooth option E 33 Using the Bluetooth link to do 33 Commands that can be used on the BT 35 4 RetroSign GR1 amp Retroreflectometer Section 1 Introduction RetroSign introduction The RetroSign Retro2. bit 8 Warning in measurement 0 bit 9 Low Lamp current 0 bit 10 Low V Bat warning under load 0 bit 11 Low V Bat Warning in idle mode 0 bit 12 Very low V Bat Error 0 bit TBD 0 bit 14 TBD 0 bit 15 TBD 0 Translates to 0x0000 for normal operation Bak Description define comment 0 Zero zero done 1 no valid zero values 1 Calib Calib done 1 no valid calibration values 2 Rm Rm factor Ok 1 no valib calibration factor 3 Leak High Leak 1 high background signal detected 4 Signal High Signal 1 converter overrun detected 5 Zero Error zero error 1 converter underrun detected during zero 6 Old Cal used Old Cal Val 1 using old calibration values 7 Mes_Error Error in Measurement 1 error detected in measurement 8 Mes_Warn Warning in Measurement 1 warning detected in R measurement 9 Lamp Lamp Current 1 lamp current error detected during measurement 10 Battery Battery warn condition 1 low battery condition detected during measurement 11 Bat_Warning Battery low warning 1 the battery voltage is getting very low 12 Bat_Error Battery low error 1 the battery voltage is to low to perform a measurement 1 3 TBD TBD 0 14 TBD TBD 0 15 TBD TBD 0 38 RetroSign GR1 amp Retroreflectometer
3. Enabled PC time on 5 iBl xl RSC Instrument setup interface RetroSign GR1 amp GR3 Retroreflectometer 31 RSC Log dunp ean pe Log dump example Fd Microsoft Excel 5 1234 5 ALL xls x a question For help x Be File Edit Insert Format Tools Window Help LBE A 5 4 aM 0 ara 10 BUEZzEE fa 2 7 Y Reply with Changes End Review gt Aa abl iv s B 42 f E ES B c pie H K o P R 5 p 1 RSC GR3 Log Report ES Firmware RS GR3 Version 3 23 DELTAfc 26 02 2009 1 3 Sensor ld 5 1234 5 4 RetroSign Date Time 2009 03 03 14 21 00 5 Index Date Time 0 2 ROS R1 0 Status Mode Seq ID 10 cnt Lat Long Sat Fix HDOP GPS Datum GPS UTC RFID Remarks ErrorT ext 6 526 2009 03 03 14 18 01 228 70 51 0 MES DELTA 19 5552 45995N 01229 74868E 11 1 088 wess4 131730 E00700001DEDBF7D 525 2009 03 03 14 17 55 229 70 52 0 MES DELTA 18 5552 46000N 01229 74880E 11 1 088 9584 131723 EO0700001DEDBF7D 8 524 2009 0303 14 17 48 229 70 52 0 MES DELTA 17 5552 46003N 01229 74873E 11 1 088 0584 131717 E00700001DEDBF7D 9 523 2009 03 03 14 16 55 228 70 51 0 MES DELTA 8 5552 45473 01229 74805 10 1 101 wess4 131624 0070000237159 10 522 2009 03 03 14 16 51 228 70 49 0 MES DELTA 7 5552 45071N 01229 74813E 10 1 101 wessd 131619 E007000023F159CF 4
4. 0 10 mm is optional To achieve the smaller aperture the reduction unit is simply mounted in front of the lens barrel Disable the Calibration Monitor when using the Reducer See Menu Items on how to disable the monitor IMPORTANT Remember always to calibrate the instrument after changing the aperture setting Note e RetroSign is an optical precision instrument handle with care e Store in clean and dry environment e Do not recharge after using the instrument only briefly e Never remove the battery when the instrument is ON e Carefully check and clean the reference the reading is very sensitive to contamination RetroSign GR1 6 Retroreflectometer 13 Section 3 General Information RetroSign GR1 amp GR3 The RetroSign Retroreflectometer measures the Ra coefficient of retroreflected luminance parameter The R parameter represents the retroreflection of the road signs seen by drivers of motor vehicles by headlight illumination Physically the Retroreflectometer is a small hand held instrument It is constructed in aluminum housing containing elec tronics and an optical system The measurement trigger button and the replaceable battery are housed in the handle The RetroSign is controlled by a micro controller that executes a measurement automatically when the trigger is acti vated The result and status are shown on the LCD display The result and other related information is automatically transferred
5. 33 and for GR3 it will normally be the value from the the primary observation angle but it depends on the selection made in the RetroSign For details see the menu items section To take new measurements just press RA again If no measurements are made the Extension kit will keep the RetroSign on for approximately 4 minutes where after the Extension kit automatically shuts down The RetroSign will then shut down according to the time out for the instrument If an error occurs during a measurement the Extension kit will show Err Operation with the RFID option Turn the instrument on enable the RFID option see menu item section and turn the instrument off again Mount the RFID reader on the front and connect the cable to the front connector Turn the instrument on again and observe that the display shows RFID Found Press the RA button on the extension kit The display first shows Then changes to 998 indicating that the reader is ready 998 24 RetroSign GR1 amp Retroreflectometer Press the Ra button again the display once again shows Hoist the instrument to the sign so that the RFID reader comes into close proximity of the RFID tag mounted on the sign When the reader gets close enough to the tag to read it the display changes to 999 indicating that the tag has been read 999 Place the instrument on the sign and press Ra again The instrument performs the R measurement and displays the result on the exte
6. 74818E 01229 74835 01229 74837 01229 74863 01229 74937 01229 74957 01229 68800 01229 68561 _ m 0 ren ren e 0 88 5584 0 88 w GSo4 0 88 wW GSo4 1 01 8584 101 6584 1 00 8584 1 01 8584 101 6554 1 01 8584 1 01 WGS84 1 01 8584 0 88 5584 0 88 0584 2 18 W GSe4 2 18 W GS84 99 99 1 6554 131730 131723 131717 131624 131619 131615 131611 131558 131552 131551 131545 131431 131425 131410 131357 131347 E00700001DEDBF7D E00700001DEDBF7D E00700001DEDBF7D E007000023F159CF E007000023F159CF E007000023F159CF E007000023F159CF E0078120ADD15778 E0078120ADD15778 E0078120ADD15778 E0078120ADD15778 007000023 159 007000023 159 E007000023F159CF FFFFFFFFFFFFFFFF FFFFFFFFFFFFFFFF Status 0 Read Status RSC main user interface data has been read from the instrument RetroSign Setup E Enabled Actual DGPS OFF New DGPS DFF Soun Enabled DATE and TIME year month Google Earth Installed YES wu Ok X Cancel lips Datum hour Auto Time Actual Hew Hean Calculation Time sec Value Disable DATUM Enabled disabled Head Instrument Date and Time LCD Backligh Enabled Time sec New Value 5 HFID Enabled Calibration Monito Head
7. F will damage the battery Do not short circuit the battery Do not dispose with household waste To remove the battery swing the battery retaining spring over and disengage the battery from the handle See Section 4 Battery for further information on charging Remote control External trigger option Optional By connecting a remote trigger box to the rear connector on the instrument it is possible to do measurements using an extension pole As an accessory an Extension pole kit can be supplied Computer interface The instrument is equipped with a device USB port this allows complete remote instrument control and measurement data collection Use the Road Sensor Control RSC software to offload measurement records or to control the RetroSign Use of the USB connection requires the installation of a special software driver on the PC which can be found on the instrument CD See Appendix B Communication facilities Support flange The support flange is provided with cross hair markings It makes it easier to decide the measuring position when taking measurements on small objects e g letters and numbers on a sign Aperture reduction For special measurement requirements on small targets the RetroSign can be mounted with a special aperture reducer adaptor this reduces the field of measurement to either 15 mm 0 6 in or 10 mm 0 4 in depending on the unit used The 15 mm is supplied with the RetroSign while the
8. Setting this control to off completely silences the instrument 10 RetroSign GR1 amp GR3 Retroreflectometer Off Timer Power Saver This function controls how long the instrument stays ON when not used This function is to preserve power before powering off Changed values and setting will be saved and selecting a value less than 60 seconds will disable this function Mean Calculation Calculate and display mean values The Mean values are calculated and displayed together with the number of measurements used for the calculation Shift to main display screen 2 see appendix F by pressing to see the calculated values In display line 2 the value MC shows the number of measurements used to calculate the mean value See appendix F The display shows both the measured value raw and the calculated value mean When the main display screen 2 press gd two times to clear the mean calculation Enabling this function affects the way the RFID function works See appendix E Calibration Monitor Calibration factor monitor The build in calibration monitor is used to check the calculated calibration factors against minimum and maximum lim its it can be disabled this should be done when using the aperture reducer s as this can result in factors outside the normal limits marking the measurements with a calibration warning The normal limit checking is designed to be a safeguard against errors in the calibration procedure When the
9. disable n 1 enable MCC 0 xxxx off and reset MCC 1 xxxx on and reset QVB Query Battery Voltage QVB n xxxx n in Volt Query Sequence ID QID ssssssssssss xxxx Sequence ID string 36 RetroSign GR1 amp GR3 Retroreflectometer S IDssssssssssss SID sssssSSSSSSS XXXX Qll info string xxxx QFV s xxxx RFI RFI n RFI n xxxx TSO TSO 1 xxxx 5 1 2 3 4 OAS 5 51 52 53 54 Set Sequence ID string Query Instrument Information e g RS GR3 2 0 DELTA 18 04 2007 563D Query Firmware version S type ver firm cdate Query RFID enable status Set RFID enable disable n 0 disable n 1 enable Turn Sensor Off Sensor turning off Memory write status s 0 no error Query Instrument Status sl status 0 se below s2 status 1 s3 status 2 s4 status 3 RetroSign GR1 amp GR3 Retroreflectometer 37 Status Code Breakdown Status 0 is the same status word contained in the normal log record Ignore Status 1 to status 3 Status 0 XXXX XXXX XXXX XXXX bit 0 Zero error 0 bit 1 Calibration error 0 bit 2 Rm Factor error 0 Leak error 0 bit 4 Signal error 0 bit 5 zero measurement error 0 bit 6 Using old calibration values 0 bit 7 Error in measurement 0
10. fully charged Battery getting low Battery discharged measurement not possible GPS position fix strikeout if no fix Display backlight is on Mean calculation enabled RFID option installed and enabled optional Bluetooth option enabled and connected optional Bluetooth option enabled but not connected optional RetroSign GR1 6 GR3 Retroreflectometer 7 Perform a measurement Place the instrument front on the surface to measure Start the measurement by pressing the red trigger knob on the handle The display shows WAIT for the duration of the measurement approx 2 seconds A sound signals the end of the measurement and the result is displayed together with other relevant information If errors or warning conditions are detected during the measurement sequence this will be shown as Err or Warn to gether with the result Sequence ID The RetroSign has a built in function to mark each measurement with a user defined name Sequence ID and a unique 2 Sequence Number automatically generated by the instrument The Sequence ID and the Sequence Number will also be stored in the log The maximum length of the Sequence ID text is 12 alphanumeric characters 1 The sound generation has to be turned on in the menu The Sequence number can be edited from the menu Keyboard functions Keyboard layout Trigger on handle zn Push shortly to switch on the instrument ud Trig Redisplay the last mea
11. is the absolute record number in the log Column K GPS Longitude information Column B The date and time for the measurement Column L Number of satellites used Column C Measured R values for 0 2 Column M Fix type 050 fix 122D 3D 2 D GPS 6 estimated Column D Measured R values for 0 5 Column N HDOP figure for the horizontal fix quality Column E Measured R values for 1 0 Column MAP datum information Column F Instrument Status for this measurement Column P GPS Universal Time Code Column G Measurement mode ZER FCM MES Column Q RFID Tag code 16 x F if undefined Column H Defined Sequence ID Colume ZR User Remarks Column l Sequence ID counter Colume Status code in legible form Column J GPS Latitude information 32 RetroSign GRI amp Retroreflectorreter APPENDIX Using the Bluetooth option Using the Bluetooth link to do measurements The procedure depends on the state of the mean calculation and the use of the RFID option RFID option turned OFF and the mean calculation disabled 1 Send to start a measurement 2 The instrument prompts with DRM 1 4E28 the command has been activated 3 After about 2 seconds the instrument sends the result string see below RFID option turned OFF and the mean calculation enabled 1 Send MCC1 to initiate a new mean calculation sequence 2 The instrument prompts with MCC 1 3EFB 3 Send DRM to start a measurement 4 The in
12. observation angle MC is the number of measurements used in the mean calculation Date and time for the measurement is also shown If the RFID option is on and a tag has been red the tag code will be displayed in the empty line e g RFID E004010001800745 GPS Information see appendix D for explanation of the displayed values Latitude Longitudes Sat B HOOP 2 45 est Serpuicesio RCIT Measurement information page showing for each observation angle the measured raw values for ZV Zero signal DV Dark signal leak 1 4 and LV Light signal with lamp on CF The calculated calibration Ds 4 factors and CN The used calibration normal values VI Battery E 31 Voltage in Idle condition VL Battery Voltage under load lamp on 2 I 163 and IL Lamp current 15 d IL Lamp t ILI Into EH Messy rene Ha 1 RetroSign GR1 6 Retroreflectometer 29 Information on warning and error conditions for each angle Warn amp Err bs Ae ms e Error condition cero alib ation w Warning condition _ h High signal Overrun Analogue to Digital Converter status Ok Overrun or Underrun Calibration factor Ok or out of limit error Lamp status Ok or Error nto Pages od ern Information on LOG and RFID Memory type and size Memory Info 50512 Log Records 3 522 Hew Records 176 Numbe
13. or nothing at all The battery type is DL123A 3V 1 300 mAh or similar RetroSign GR1 amp Retroreflectometer 25 APPENDIX D GPS GPS Implementation The GPS function is activated when the GPS Option has been enabled in the menu Due to the fact that the GPS re ceiver first has to receive signals from several satellites before it can calculate its position it will take a short time before a Good Fix can be achieved Typical this process will take only a few seconds but depends on how long the device has been out of use and also on how far it has been moved away from the last fix position When the GPS function is enabled but no fix has yet been calculated the icon row shows strikeout When a position has been calculated the Icon changes to and the position and status will be updated The GPS position data and status can be displayed by selecting Info page GPS This is done by pressing two times from the main result display See Appendix F Result and Info Pages Into TEE GPS UTC ra Latitude Longitude TEE 2343 SEHStTest Serviced _ Line2 UTC 113758 universal time code London time Line 3 Latitude 5552 45837N format ddmm mmmm Line 4 Longitude 01229 75178E format dddmm mmmm Line 5 X Sat 06 Number of satellites used Line 5 Fix D_GPS Fix type Line 6 HDOP 2 45 Horizontal Dilution Of Precision Line 6 Datum WGS84 Map reference system Line 7 SBAS Test Satell
14. the values Reduced aperture option When the instrument is configured for measurements with reduced aperture the calibration monitor should be disabled This changes the checking of the calculated calibration values and displays the m icon to alert the user that this op tion has been selected The instrument must be recalibrated whenever this function is enabled or disabled See also paragraph Aperture Reduction in this section for further information RetroSign GR1 amp Retroreflectometer 9 Menu system General menu operations When in measurement mode pressing t or activates the menu system When in menu mode use the and to scroll through the functions or to change values Press to select or accept the displayed function or value In some menus the a key is used to switch between different selections Pressing fd terminates the menu and switches back to the results display Use t to scroll through the menu list as shown below using reverses the list Menu items Sequence ID Measurement ID A measurement series can be assigned a unique ID that is logged together with the results Each measurement made with the ID is also assigned a sequence number that automatically increments by one for each measurement The Sequence ID is shown as Seq ID string where string can be up to 12 alphanumeric characters e g CARLANE 1 XY To edit the sequence ID press The display changes to show the de
15. to the internal non volatile memory The RetroSign is operated from a small keyboard on the left hand side of the Retroreflectometer The Retroreflectometer control is also possible using a USB device connection The USB con nection is used to transfer data records to a PC for further processing Factory calibrations The RetroSign GR1 and GR3 is factory calibrated This calibration is carried out using a standard The reference s Ra value is measured in the laboratory using traceable methods and equipment The enclosed reference cap should be used for verification and recalibration of the Retroreflectometer Measurement geometry GR1 and GR3 type ASTM The illumination angle is 4 The offsets between the illumination and the primary observation angle are 0 2 GR1 and the three observation angles are 0 2 0 5 and 1 0 GR3 respectively The measurement area is approx 30 mm in the standard configuration 15 mm or 10 mm when using the reduced aperture adaptors Sign Illumination angle 4 Observation angle 0 2 ASTM geometry 14 RetroSign GR1 amp GR3 Retroreflectometer GR3 type CEN The illumination angle is 5 The offsets between the illumination and the primary observation angle are 0 33 GR1 and the three observation angles are 0 33 0 5 and 1 0 GR3 respectively The measurement area is approx 30 mm in the standard configuration 15 mm or 10 mm when using the reduced ape
16. 4 521 2009 03 03 14 16 46 228 70 50 0 MES DELTA 6 5552 45965 01229 74824E 10 1 101 wess4 131615 X E007000023F159CF 12 520 2009 03 03 14 16 43 228 70 51 0 MES DELTA 5 5552 45962 01229 74828E 10 1 101 wess4 131611 E007000023F1598CF 13 519 2009 03 03 14 16 29 228 70 51 0 MES DELTA 4 5552 45989 01229 74818E 10 1 101 wess4 131558 0078120 0015778 1141 518 2009 03 03 14 16 26 227 70 50 0 MES DELTA 3 5552 45986 01229 74835E 10 1 101 6584 131552 0078120 0015778 15 517 2009 03 03 14 16 22 228 70 50 0 MES DELTA 2 5552 45984N 01229 74837E 10 1 101 wess4 131551 E0078120ADD15778 16 516 2009 03 03 14 16 16 229 70 51 0 MES DELTA 1 5552 45470 01229 74863E 10 1 101 wess4 131545 0078120 0015778 515 2009 03 03 14 15 03 228 70 50 0 MES C8 3 555245005N 01229 74937E 11 1 088 9584 131431 E007000023F159CF 18 514 2009 03 03 14 14 57 228 70 50 0 MES 2 5552 45993 01229 74957E 11 1 088 wess4 131425 X 007000023 159 19 513 2009 03 03 14 14 44 228 70 50 0 MES C8 1 5552 50156N 01229 68800 05 1 2 18 9584 131410 E007000023F159CF 20 512 2009 03 03 14 14 28 228 70 50 0 FCM 0 5552 50160 01229 68561E 03 1 2 18 9584 131357 FFFFFFFFFFFFFFFF E 511 2009 03 03 14 14 18 228 70 50 2 ZER C8 0 00 0 99 99 5584 131347 FFFFFFFFFFFFFFFF Calibration Error 23 IM 4 b Ready ar 2 The example shows the output from the log dump program saved as excel file Column A The log index number e g 504
17. Monitor is enabled the 1 icon displays when disabled the J icon displays IMPORTANT the instrument must be recalibrated whenever changing form normal to reduced aperture and vice versa Remote Box Display Select result for extender box display The remote trigger can only display one result at a time this function selects which result to display on the remote trig ger unit the normal setting would be the primary observation angle of 0 2 or 0 33 Display Backlight Control LCD backlight The automatic LCD display backlight function can be disabled Doing so will allow for more measurements on the same battery charge as backlighting consumes lots of energy DGPS Mode Select GPS position correction method Optional The GPS receiver can use different methods to obtain greater position precision by using different correction signal sources Depending on the location different systems can be selected WAAS should be used in North America EGNOS should be used in Europe Auto should select the best possible available correction signal However not all systems may be fully operational or they may be in test modes Selecting a wrong correction system might actually reduce the precision Disable Don t use any correction signals RetroSign GR1 amp GR3 Retroreflectometer 11 GPS State Control the GPS function Optional The GPS receiver can be disabled if desired the main reason for doing this would be to reduce
18. RetroSign GR1 amp GR3 Retroreflectometer On site quality verification of road signs User s Manual DELTA Danish Electronic Venlighedsvej 4 2970 RetroSign GR1 amp GR3 Retroreflectometer 1 DISCLAIMER The information contained in this document is subject to change without notice DELTA MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL INCLUDING BUT NOT LIM ITED TO THE IMPLIED WARRANTIES OF MERCHANTIABILITY AND FITNESS FOR A PARTICULAR PURPOSE DELTA 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 Rev 1 3 Marts 2009 2 DatrnCinn 1 2092 atraraflartamatar Index Section Introduction e 5 2565 4555 242 5 RetroSign Retroreflectometer 6 lt WU 6 Section 2 Operating 7 eue es 7 7 Perform a 8 aera Dmm a RETE 8 c P 9 elTe e m 9 Menu Syste 4 22 545 22542051 55252228 C c m 10 si
19. V 60 Hz Charge ME a approx 15 minutes Data MEMON gt 250 000 measurements ACC NETTE E PEA E UM USB tag 13 56MHz 15015693 c Bluetooth RetroSign GR1 amp Retroreflectometer 19 Environmental characteristics Operation temperature O to 50 C 32 F to 122 F Storage temperalure 15 C to 55 C 5 F to 131 F anda Non condensing Mechanical characteristics LENGU ioe M 295mm 11 6 in oi PENNE Reena EET 83 3 3 in PSION ID PER 324 mm 12 8 in ATE amo c E 2 1 kg 4 6 lbs noo ooo RetroSign dimensions 20 RetroSign GR1 amp Retroreflectometer Carrying case content 7 MOQOWD ACTIO RetroSign GR3 Instrument with Lens Cap Quick Guide Warranty and Certificate Reference unit for calibration Battery charger emall Support flange Charger manual instrument CD aperture reducer 15mm 0 60 in Registration card and keys for case RFID reader unit USB A B communication cable Adaptor for Battery charger Shoulder strap Sample RFID tags RetroSign GR1 amp GR3 Retroreflectometer 21 APPENDIX B Communication Facilities USB specification The RetroSign is equipped with a USB conne
20. amp must be replaced only by DELTA or personal trained by DELTA RetroSign GR1 amp Retroreflectometer 17 Reference cap To make sure that the calibration of the Retroreflectometer is correct it is important that the surface on the reference cap is clean and undamaged Keep the cap protected and be careful not to touch the reference cap reflective side If the surface is stained scratched or broken the reference cap must be replaced In case of dust on the surface clean the reference cap gently by using a soft cloth with a mild household detergent Wipe carefully with dry linen cloth afterwards To ensure reliable measurements it is recommended that the reference cap is periodically recalibrated to a traceable standard DELTA Light amp Optics offers calibration traceable to PTB Physikalisch Technishe Bundesanstalt and NIST National Institute of Standards and Technology For information contact your local distributor or DELTA Light amp Optics Denmark Reference Standard Standard Reference cap Calibration The RetroSign is factory calibrated but a calibration should always be carried out before starting a series of measure ments The calibration process automatically compensates for instrument offsets leakage and other known errors and calcu lates calibration factors for each observation angle After a calibration the Retroreflectometer will display true Ra value
21. ata transfer extended control and diagnostics e Long lifetime battery e 230 V 50 Hz or 120V 60 Hz mains powered battery charger e Small support flange with cross hair e Aperture reducer 215 mm 0 60 in e USB cable e Shoulder strap e Carrying case Options e Extension pole kit with remote trigger display and large support flange e Advanced 16 channel GPS receiver e RFID Radio Frequency ID tag reader for measurement documentation using wireless smart tags e Bluetooth wireless communication link for wireless data and control e Fast 12V powered battery charger approx 15 minutes e Extra Battery Aperture Reducer 210 mm 0 40 in 6 RetroSign GR1 amp Retroreflectometer Section 2 Operating Information Getting started Turn the RetroSign on by pressing ON C After approx 2 seconds the display will show Calibrate the instrument if necessary See calibration section Icons RETROSIGH Wert 3 13 ASTH 4 6 2 Instrument status and operational mode are signaled by the use of icons Icons are shown in the top line of the display tl BOO H O When is shown the instrument is calibrated and ready for use Instrument is calibrated and ready Menu selected Calibration selected Zero calibration in progress Reference calibration in progress Calibration monitor active for normal aperture Calibration monitor disable for reduced aperture Battery
22. ca Renee Em 13 CONTO Me TD 13 SUPPO 13 Aperture FECUCTION NET 13 Section 3 General Information 14 RetroSign GR1 amp 9 14 Factory cT 14 Measurement 14 ype AS TM ce 14 CSR BBY Ss CEN assis isd ais ee tie ease sn dese eee a 15 SAFETY dum iau edid aia ae eee 15 Bane pc 15 Note on error SOUrcCeS acd 16 Section 4 Maintenalice cud a CENA PEE dE 17 CAN AE TM 17 mie d 17 BBcode tere 17 ee Sat m 17 T T m NT 18 PP P H 18 APPENDIX A 5 19 General characlerisucs ese E aces 19 Environmental characteristics Aa E 20 Mechanical cBaracterisli6S ee 20 case contentino aaa a A aAA co sy PEE 21 APPENDIX B Communication
23. ction that enables the use of a standard Windows PC to control instrument functions and for downloading measurement records from the internal data log The PC connects to the RetroSign using the USB device connector on the rear end of the instrument and a standard USB A B cable Important The connection requires the installation of a USB driver on the PC This has to be done before the instrument is con nected to the PC for the first time The driver can be found on the Instrument CD and can easily be installed from the main screen The instrument will not draw power from the USB connection Bluetooth specification The RetroSign can be equipped with a build in Bluetooth module that enables the use of a remote Bluetooth master de vice to control the instrument functions e g a Bluetooth enabled laptop PDA or even a smart phone To operate the instrument the master has to have a kind of application program that can handle the special instrument communication protocol In its simplest form this can be the windows hyper terminal using the Bluetooth channel as a serial comport The BT communication will under normal conditions work well for distances up to at least 10m 33Ft Enabling disabling the Bluetooth function Open the Bluetooth menu with the Up Down keys Blue Tooth OFF Blue Tooth Off Change tot Change tes scoverable Charge Sto Change H Lao Accept to Accept TEE Guit TEE Guit ElueTooth B
24. eader Selection for dump LHS n Set Log Header Selection for dump n 0 Normal Log Header Default n 1 Full Log Header TBD n 2 Special Log Header TBD n 0 Log Header Index Log record Date and time Measurement time RO0 2 R 0 29 5 0 59 R1 0 R 1 09 Status Instrument status 4 HEX char Mode Operation mode Seq ID Sequence ID ID cnt Number in sequence Lat Latitude N S Long Longitude E W Sat Number of satellites Fix Fix type HDOP HDOP info DATUM GPS DATUM UTC GPS Universal Time Code RetroSign GR1 amp 083 Retroreflectometer 35 2 R 0 29 calculated mean value 0 5 0 5 calculated mean value M1 0 R 1 0 calculated mean value M Cnt Number of measurements in the mean calc RFID RFID code 16 HEX char S xxxx String containing log header used LOG command LOG nm Dump n records starting m records down Omitting n and m returns latest log entry Omitting m returns n records from top Log dump according to selected Header LHS LOG Dump Latest Log entry LOG n LOG n Dump n records from top LOG n LOG nm Dump n records starting m records down LOG n m xxxx LNR Query number of unread log records LNR n xxxx Returns the number of unread Log records LRR Mark Log Records as read LRR 1 xxxx LST Query total number off LOG records LST n xxxx MCC Query Mean Calculation status and reset MCC n Mean Calculation Control enable disable n 0
25. fined ID and a line showing the new ID To a start the new ID will be identical to the old ID Underneath the new ID the edit position is marked with an up arrow symbol Use the edit keys to make changes to the marked position When defining a new ID the sequence number will be reset to zero ID Count Display ID count for edit The auto incremented Sequence ID number can be changed use the normal edit keys to change the value Clear ID Set Sequence ID to undefined The display shows the defined sequence ID the ID can be set to undefined using the edit keys Use this option to completely remove the ID string Clear Work Log Set user log record counter to zero The display shows the number of records in the work log This function allows the user to reset the log record counter The function can be used when starting a new measure ment series without first reading the records already in the log It should be emphasized that no data actually is erased by this operation it is merely the presentation of the number of new records in the log that changes and it should also be emphasized that all old data records can still be read out at a later time Normally this counter will be reset by the PC program after reading the data to a file Sound Control Control generation of system sounds This function controls how the instrument uses sounds to report different conditions e g the end of a measurement cycle error conditions etc
26. ial number e g RS GR3 12345678 When connected the Bluetooth connected LED is turned on It is located near the USB connector on the instrument back plate The Bluetooth status can be checked in the Info Page Bluetooth here the device name and the ID of the connected Bluetooth master will be displayed A EL 3 123 5 5 5 123 Last Connected to 123123123BDC Dleconnected Connected to BT master 123123123BDC BT Enabled but not connected RetroSign GR1 amp Retroreflectometer 23 APPENDIX C Quick Guide for RetroSign Extension Kit Preparation Attach the adaptor plate to the instrument according to the Kit documentation Fasten the instrument to the extention pole and adjust the tilt head Connect the Extension kit cable to the appropriate connector on the rear end of the instrument Mount the support plate if needed Precation If the instrument is equipped with the bluetooth option make sure it is turned off if not the Kit will not be able to commu nicate with the instrument Operation Turn the RetroSign on Hoist the instrument to the measurement target observing the correct orientation Press the RA button on the extension kit The display first shows The instrument takes a measurement and the result is displayed e g 230 The value shown is the same as one of the results shown on the RetroSign For GR1 it will be the value from the pri mary observation angle 0 2 or 0
27. ite Based Augmentation Systems Line 7 Sys EGNOS The position correction system in use Line 8 Service 15 RCIT system service status bitmap 4 bit Fix The Fix type can be m NoFix Invalid position m 2D 3D Standard GPS m D GPS Differential GPS m Estim Estimated Dead Reckoning Fix HDOP The Horizontal Dilution Of Precision HDOP value in the range from 0 10 to 99 99 the lower the value the more accurate the position Fix Datum The Map reference system can only be changed with the RSC2 software Sys The DGPS mode received by the GPS unit it can be m GPS when no correction data is received m WAAS when correction data from the WAAS satellites is used m EGNOS when correction data from the EGNOS satellites is used m Unknown when ambiguous correction data Service Ranging C corrections 1 integrity T test mode All GPS Position data and status are stored in the internal data log and will be retrieved with the normal Log Dump ac tion 26 RetroSign GR1 amp Retroreflectometer Controlling the GPS function from the menu system Use the edit keys to select the GPS menu GPS State The GPS unit is on press to turn it off GPS State Off The GPS unit is off press 5 in a few seconds to turn it on position acquisition starts and a position fix should be ready Use the edit keys to select the DGPS menu The display can show DGPS Mode WAAS The DGPS mode is set to use the WAAS satelli
28. ity to the tag The instrument prompts 507 2 0814 when the tag has been read Place the instrument on the target and send DRM to do the measurement The instrument prompts DRM 1 4E28 the command has been activated ee es v 0 After about 2 seconds the instrument sends the result string see below RetroSign 0816 083 Retroreflectometer 33 Repeat steps 8 to10 until all measurements on the object has been done Example result string all in one line 4 2007 04 19 09 54 46 0 0 0 0 MES DELTA BT 64 5552 46167N 01229 75111E 07 1 1 09 WGS84 073735 0 12 0 00 0 00 1 E0078120ADD1501D 680B 34 RetroSign amp Retroreflectometer Commands that can be used on the BT connection Commands start with the char lt gt and must end with a Carriage Return code lt CR gt DRM Do R measurement RFID disabled DRM 0 4D27 Instrument not calibrated DRM 1 4E28 Executing measurement Result string xxxx one line DRM Do R measurement RFID enabled DRM 0 4D27 Instrument not calibrated DRM 1 4E28 Executing measurement 507 0 RFID device 507 1 xxxx Ready to read Tag 507 2 Tag Read ready to measure DRM Second Do R measurement DRM 1 4E28 Result string xxxx one line Result string example one line OF 20077 04719 11 17 49 0 0 0 0 5 77 5552 46178 4 01229 75047 09 1 0 81 5 84 090036 0 29 0 09 0 12 3 0078120 1501D 7DF1 LHS Query Log H
29. lueTooth Change tot Dizcouerable Change tot Dizcouerable Ch Sto Ch to Accept H to Accept ea to Guit TS Guit BT enn 3 BT menu 4 BT Menu 1 The BT unit is off change to On BT will try to reconnect to the last connected BT master BT Menu 2 The BT unit if off change to Discoverable BT unit will be turned on and made discoverable BT Menu 3 The BT unit is on change to Discoverable mode for connection to a new BT master BT Menu 4 The BT unit is on and connected break connection and change to discoverable mode Select desired function and press the Accept key 22 RetroSign GR1 amp Retroreflectometer When turned ON the instrument will try to reconnect to the last known Bluetooth master and will not be searchable By selecting the Discoverable mode the instrument can be discovered by other Bluetooth masters A Bluetooth ICON appears in the top right display corner It shows a broken Bluetooth symbol when not connected see Menu 3 When a connection has been set up the ICON changes to show the normal Bluetooth symbol See Menu 4 Note First time you whish to connect a Bluetooth master to the instrument you have to select the Discoverable option The Bluetooth master can locate and connect to the instrument The instrument will then automatically try to reconnect to the known master each time it is turned on Use the default access code 1234 on the master when asked The Bluetooth name will be RS GR3 ser
30. n causing the measurement to fail Doing measurements with a nearly discharged battery should be avoided as this might influence the measured values 16 RetroSign GR1 amp Retroreflectometer Section 4 Maintenance General care The Retroreflectometer is constructed for outdoor use in fair weather conditions The Retroreflectometer will withstand moist weather but caution must be taken against rain or splashes and dirt form traffic The RetroSign Retroreflectometer is a robust instrument but it is an optical instrument and must be handled as such Avoid exposing the instrument to high mechanical shocks and vibrations Avoid exposing the instrument to rapidly changing temperatures When not in use store the instrument in the caring case in a clean and dry environment Front lens The lens does not need special maintenance If dirty carefully moist the lens with ordinary window cleaning liquid and clean it with a soft linen cloth Battery The instrument is powered by a NiMh battery which under normal use requires no maintenance A battery charger is provided as a standard accessory for charging the battery from mains To recharge the battery first make sure that the instrument is off then release the battery retaining spring remove the battery from the handle and insert it in the charger Please refer to the enclosed charger instructions for operation A new battery or one which has not been used for an extended period
31. n the CD for details on the RSC software 2 RSC GR3 C Program Files DELTA Roadsensors RSC for Series Untitled Rsc File Setup About Firmware RS GR3 Version 3 23 26 02 2009 Sensor Id 5 12345 Connected to DELTA Roadsensor DATA LOG Total log Records 526 New log Records 526 Read Options EEE 14 17 55 229 70 e All Mew cnt 523 2009 03 03 14 16 55 228 70 522 2009 03 03 14 16 51 228 70 cnt 521 2009 03 03 14 16 46 228 70 510 510 520 2009 03 03 14 16 43 228 70 519 2009 03 03 14 16 29 228 70 Read Stop _ 14 16 26 227 70 2009 03 03 14 16 22 228 70 14 16 16 229 70 aa 14 15 03 228 70 2009 03 03 14 14 57 228 70 Oe 14 14 41 228 70 512 2009 03 03 14 14 28 228 70 511 2009 03 03 14 14 18 228 70 C Newest 526 C Selection Records Actually Read 16 Clear New 52 52 51 49 50 51 51 50 50 51 50 50 50 50 50 MES MES MES MES MES MES MES MES MES MES MES MES MES MES FCM ZER DELTA DELTA DELTA DELTA DELTA DELTA DELTA DELTA DELTA DELTA DELTA C8 C8 C8 C8 C8 19 18 17 5552 45995 5552 46000 5552 46003 5552 45973 5552 45971 5552 45965 5552 45962 5552 45989 5552 45986N 5552 45984 5552 45970 5552 45995 5552 45993 5552 50156 5552 50160 01229 74868 01229 74880 01229 74873 01229 74805 01229 74813E 01229 74824E 01229 74826E 01229
32. nsion kit 230 If the tag is read while the display shows 998 then pressing Ra will go directly to the measuring sequence displaying the result and completely skip the 999 display Doing multipoint measurements reading the RFID tag only once Enabling the mean calculation option has the consequence that the RFID tag only will be read when doing the first measurement in a multipoint series this means that pressing Ra again after having done the first measurement simply executes the next measurement The RFID code is logged together with the measurement results Important The Extention Kit MK 2 has no build in battery it is powered entirely from the instrument The Kit MK 2 can not be used together with the older RetroSign series of instruments The GR1 GR3 instrument firmware should be version 3 21 or greater See Appendix F Status Page for firmware version Battery The battery in the display module can be exchanged by carefully unscrewing the bottom plate and removing the battery container Insert the new battery Very important Notice that the red wire of the battery container must be connected to the terminal Assemble the Extension kit in reverse order Depending on use the battery should be changed at least once a year When not in use the Extension kit still uses a small amount of power so dismount the internal battery if storing for longer periods of time When the battery voltage is low the display will show LO BAT
33. oe mounted on the front of the instrument and connected to the front mounted connector The RFID function is activated when the RFID option has been enabled in the menu When enabled the tag reader is checked every time the instrument is turned on if the function is on and the reader has been detached the user is asked to disable the RFID function The reader is activated prior to every measurement on the first trigger action When the tag has been read the tag ID is displayed and the next trigger action will execute the measurement If the mean calculation function is on the reader will only be activated prior to the first measurement This makes it pos sible to do multipoint measurements without the need to read the tag for each measurement RFID spec e 13 56 MHz tags according to the ISO IEC 15693 e Reading distance 30mm with recommended tag type e Fast tag reading 28 RetroSign GR1 amp Retroreflectometer APPENDIX F Result and Info Pages exampies Switch between the Result and Info pages by pressing when not in menu mode All following examples are shown for the GR3 configuration GH1 instruments will only show values for the primary ob servation angle Main result display 1 showing instrument status icons result and status from each observation angle and the measurement ID text and sequence number Main result display 2 showing same information as 1 and addition ally the calculated mean values for each
34. of time will reach full performance only after approx 5 charging and discharging cycles The battery is equipped with a temperature monitor that only allows charging within a range between 0 C and 45 C 32 F and 113 F This ensures long battery life When used properly the battery can be recharged to 1000 times A substantial drop in obtainable measurements on a fully charged battery indicates that the battery is worn out and must be renewed The Battery and the charger are specifically designed for use in conjunction with one another Charging should be done only with the charger delivered with the instrument Do not expose the battery to heat or flames Danger of explosion Do not place the battery on a heater or expose to direct sunlight for long periods Temperatures in excess of 50 C 122 F will damage the battery Allow a warm battery to cool before charging When handling or storing the battery take special care to avoid possible short circuiting the battery contacts Avoid repeated consecutive rapid charges of the battery Do not recharge after using only briefly Note e The battery should be protected against impact Do not open the battery e Store the battery in a dry place e Due to environmental protection do not dispose the battery with household waste Lamp The lamp requires no maintenance At the end of the lamps service life the instrument will display a lamp error message and the lamp must be replaced The l
35. r of new Log records RFID reader status or TAG code Total number of log records used Into Page Statys Miscellaneous information GR 1 5 sn 1888 HSTH ru Instrument type firmware version and serial number Power status amp Ok Battery Ok Li Low Bat Limit Sal Setting for the electronic offset and gain potentiometers Offset 201 177 195 139 OP back lign DAc 5 165 214 159 Lamp current DAC 133 RV Reference signal info RU 4175 B9922 nto Pages Instrument status flags cero 188 11 1 1 1 calibration status Status 0 Main status bitmap Status 8000 1l Status 1 3 secondary status bitmaps status 2 6353 5 Zero zero status The display always returns to Main 1 or 2 when performing a new measurement 30 RetroSign GR1 amp Retroreflectometer APPENDIX G more user friendly interface The RSC program runs on a Windows PC that has to have a USB port The instrument connects to the PC using a USB A B cable RSC for RetroSign GR1 amp The RSC program short for RoadSensorControl is used to download data records and to control the instrument from a The program installs a special USB device driver that is necessary for the PC to communicate with the instrument Note Install the driver before connecting the instrument for the first time See documentation included o
36. reflectometer is a portable field instrument intended for measuring the retroreflection properties of road signs in car headlight illumination The value RA coefficient of retroreflected luminance is used for the measure ment RA is a measure of the visibility of the road signs as seen by drivers of motorized vehicles in headlight illumination The RetroSign is available in different versions For type GR3 ASTM the sign is illuminated at an entrance angle of 4 and the measurements are made with angles be tween illumination and observation of 0 2 0 5 and 1 0 This is relevant for a motorist viewing situation under normal conditions For type GR3 CEN the sign is illuminated at an entrance angle of 5 and the measurements are made with angles be tween illumination and observation of 0 33 0 5 and 1 0 This is relevant for a motorist viewing situation under normal driving conditions For type GR1 SAFETY the measurement area is illuminated at an entrance angle of 5 and the measurements made with an observation angle of 0 2 angles used to measure Safety Clothing according to EN 471 The ASTM and CEN type instruments is also offered in a GR1 version with only the primary observation angles of 0 2 ASTM and 0 33 CEN The range of RetroSign instruments available are summarized below Ra is an important factor in the onsite quality control of road signs DELTA RetroSign Retroreflectometer The operation of the Retro
37. reflectometer is very simple and requires a minimum of instruction An error or warning mes sage is given in case of unreliable or measurement RetroSign 0816 GR3 Retroreflectometer 5 The RetroSign measures the retroreflection and calculates Ra according to international standards Results are pre sented on an LCD panel Each measurement can be marked with a user defined name measurement ID of up to 12 alphanumeric characters and an auto incrementing sequence number The memory provides on site registration of measurements with corresponding date time ID measurement status GPS position optional and RFID tag code optional The GR1 or GR3 is equipped with a USB port that gives easy PC access to measurement data and diagnostics The RetroSign is powered by a rechargeable battery offering many hours of measurement capacity A mains powered battery charger is supplied as standard RetroSign Retroreflectometer features e Portable instrument e Measurement in full daylight e Photopic corrected detector and source A e Automatic stray light compensation and error diagnostics e Measurement geometry and illumination corresponding to realistic viewing condition in night time traffic e Direct digital read out e Easy calibration procedure e Reference cap for calibration e Real time clock e Automatic data storage in non volatile memory e Automatic programmable power off function e USB port providing easy communication for d
38. rements Sign conditions The optical property of a sign alters when the retro reflective material becomes wet The RetroSign can take measure ments on wet or dewy sign surfaces but readings are not comparable with readings taken on dry signs Because of the special optical properties of micro prismatic sheeting precautions like turning the instrument correctly and holding it vertical should be taken to get correct readings Always use the RetroSign in the angle specified for the sign Normally the RetroSign instrument must be held in the vertical position Leakage During each measurement the RetroSign automatically evaluates the leakage optical background signal and the result are compensated before read out Leakage will under normal conditions not be significant Nevertheless leakage may occur and a warning will be shown in the display Leakage is primarily caused by stray light entering the optics between the sign and the instrument Instrument leak drift and offset errors are compensated for by means of data obtained during the calibration procedure so perform the calibration procedure carefully Low battery condition The instrument always monitors the battery voltage and automatically blocks for further measurements when the battery voltage gets very low Due to the nature of the battery it may happen when the instrument is turned on that the voltage will be high enough to start a measurement but not to turn the light source o
39. ressing the button and then BE Follow the displayed procedure Zero Mount the zero cap dark side on the instrument Press the or the trigger when ready The display shows WAIT while measuring and then shortly displays the measured zero values If the measured values are ok the instrument is ready for the next step in the calibration procedure If high zero values are measured a warning text will be shown and the user asked to check the black target and try again Reference Mount the reference cap reflective side If necessary edit the displayed reference value using E Or n until it matches the value printed on the reference unit press or the trigger to advance to the next reference value When all reference values has been checked and edited the instrument executes the calibration process WAIT is displayed during the actual calibration measurement and then the calculated calibration factors are shortly displayed If errors are detected during the calibration process a warning text is displayed and the user is asked to check the white target and retry the calibration by pressing or the trigger again The reference values will not need to be checked again When the calibration is successful continue by pressing KR or the trigger After a successful calibration the icon is shown and the instrument is ready for measurements It is good practice to do a measurement on the calibration unit immediately after the calibration to check
40. rture adaptors Sign Illumination angle 5 TT ee _ _ anm _ 7 Observation angle 0 33 2 CEN geometry GR1 type SAFETY The illumination angle is 5 and the offsets between the illumination and observation angle is 0 2 The measurement area is approx 30 mm in the standard configuration 15 mm or 10 mm when using the reduced aperture adaptors Cloth Illumination angle 5 CEN EN 471 geometry Battery The RetroSign is powered by a replaceable rechargeable battery which under normal operation will keep the Retrore flectometer operating for many hours The battery must be recharged by the included external charger See Section 4 Battery RetroSign 1 amp Retroreflectometer 15 Note on error sources Before measuring The RetroSign is factory calibrated nevertheless begin important measurements sessions with a calibration dust and smear from touching the optical surfaces might influence the measured values considerably It is very important to keep the instrument front lens and the white reference cap clean See also Section 4 Maintenance Instrument orientation The RetroSign can take measurements without being in close contact with the sign surface But to obtain the most reli able results the front of the RetroSign should be in contact with and perpendicular to the sign surface when taking measu
41. s Store the reference cap in a dry and clean environment 18 RetroSign GR1 amp GR3 Retroreflectometer APPENDIXA Specifications General characteristics Type ASTM Geometry ASTM E 1709 ree 4 observation 0 2 0 5 1 0 Type CEN Geometry CEN EN 12899 1 liim ATION asst seas ode A observation 0 33 0 5 1 0 Type SAFE Geometry CEN EN 471 ARON angle co beta pecie Ec a 5 observation 410 0 2 Light source angular 0 1 Receptor angular 0 1 Field of 30mm 1 2in LIONE SOU eu OL o ID S Illuminant A Receptor Precise eye corrected ASTM E1709para 6 4 2 for selected color filters Min reading d s A eae atas 0 Max reading cd Ixxm 2000 Electrical characteristics zi EN 50081 1 EN 50082 1 Power supply Replaceable NiMh 9 6 V 2 6Ah External charger Mains voltage 230 V 50 Hz Optional 110
42. strument prompts with DRM 1 4bE28 the command has been activated 9 After about 2 seconds the instrument sends the result string see below Repeat steps 3 to 5 until all measurements on the object have been done RFID option turned ON and the mean calculation disabled 1 Send DRM to start a measurement The instrument prompts with DRM 1 4E28 the command has been activated The instrument then prompts 507 1 0713 indicating that it is ready to read a RFID tag the instrument repeats the 507 1 0713 prompt until the next action Put the RFID reader in close proximity to the tag The instrument prompts 507 2 0814 when the tag has been read Place the instrument on the target and send DRM to do the measurement The instrument prompts DRM 1 4E28 the command has been activated E ae After about 2 seconds the instrument sends the result string see below RFID option turned ON and the mean calculation enabled Send MCC1 to initiate a new mean calculation sequence The instrument prompts with MCC 1 3EFB Send DRM to start a measurement The instrument prompts DRM 1 4E28 the command has been activated doe The instrument then prompts 507 1 0713 indicating that it is ready to read RFID tag the instrument repeats the 507 1 0713 prompt until the next action If the prompt is 507 0 xxxx then no RFID was detected Put the RFID reader in close proxim
43. surement result Clear the mean calculation when displayed Cancellation of current menu operation Turn Instrument Off Changed settings will be stored Select menu items Scroll keys when in menus Parameter and value increment decrement Start instrument calibration function Select change settings in menus Switch between result and status displays Activate selected functions Start R measurement Select quick calibration mode Select next calibration step Read RFID tag when mounted and enabled 8 RetroSign 0816 Retroreflectometer Calibration RetroSign features two levels of calibration Quick and Full Quick calibration is an everyday calibration using zero results and reference values from the latest full calibration This option may only be used with the same reference unit that was used for the full calibration Full calibration is used for high accuracy calibration of zero and reference Quick calibration Quick calibration is initiated by pressing the m button and then the trigger Mount the reference cap reflective side before triggering The display shows WAIT and the Calibration is executed immediately using previous defined refer ence values If the calibration fails the display shows a short warning message saying that the old calibration values will be used a status flag will be set and logged for this condition Full calibration Full calibration is initiated by p
44. tes for position corrections Use in the North American region DGPS Mode EGNOS The DGPS mode is set to use the EGNOS satellites for position corrections Use in the Euro pean region DGPS Mode Auto The DGPS mode is set to use the available satellites for position corrections DGPS Mode Off If DGPS mode is turned off the correction signals will be received but not used this can be desir able in situations where the correction satellites is very low on the horizon as would be the case at high latitudes Also take note that using a correction signal from a Satellite designed to correct position data for a different region can result in degraded precession this would be the case when using WAAS in Europe Switch between the different modes with the 1 2 key Changing the DGPS mode is only possible when the GPS unit is on GPS spec e 16 channel Receiver e DGPS for best position accuracy e Earth Datum WGS84 can be changed from RSC2 program e Fast Time To First Fix TTFF o 34scold start 5 TTFF with assisted GPS o lt 3 5 s hot start e Excellent navigation performance 2 5mCEP o 2 0 CEP with DGPS SBAS depending on accuracy of correction data RetroSign amp Retroreflectometer 27 APPENDIX E RFID RFID implementation The Multitag Reader Module is a proximity reading device supporting 13 56 MHz tags according to the ISO IEC 15693 specification The reader is easily attached to the device sh
45. the overall power con sumption maximizing the number of possible measurements on the available battery charge RFID State Control the RFID option Optional The GR1 and GR3 have an option for inputting data from an external RFID reader This will make it possible to use RFID tags to uniquely identify signs Enabling the RFID option changes the way the instrument behave when taking measurements When no reader is connected this option must be disabled When enabled the instrument will ask for a RFID tag on the first trigger When the tag has been read the instrument will do the measurement on the second trigger See appendix E When the Mean Calculation is enabled the instrument will only ask for the RFID tag on the first measurement in a se ries Mean Count 2 This allows for doing multipoint measurements with the same RFID code After clearing the mean calculation the instrument will again ask for the RFID tag on the first trigger Remove Latest Measurement undo the most recent measurement It is possible to remove the most recent measurement record from the work log To maintain data integrity only one data record can be removed and only if it is done before the instrument is turned off 12 RetroSign GR1 amp GR3 Retroreflectometer Battery charging Never disconnect the battery while the instrument is turned on as this may result in lost data and malfunction of the in strument Temperatures in excess of 50 C 122
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