RAC-100 & 200 Manual
Contents
1. inside the vehicle Plug the cable into the MDS jack labeled To DMI as shown in Figure 2 3 It does not matter which end of the cable is plugged into the MDS or DMI 6 Route the Red 12 Volts and Black Ground power cables directly to the vehicle s battery This can be done us ing the same feed through location that was used for the VSS Cable If out of convenience you elect to obtain the Figure 2 4 Power Plug in 12VDC and ground from a fuse panel or other location under the dashboard make sure it is a constant 12 volt source and not one that is switched off with the ignition key We also recommend the circuit should have as few devices as possible to avoid 2 4 Distance Bandi m Chapter 2 Installation voltage fluctuations from Turn Signals Brake Lights etc Plug the power cable into the hole labeled Power on the MDS as shown in Figure 2 4 A diagram of the complete installation for the MDS is shown in Figure 6 on page 2 6 Adjusting the Vehicle Speed Sensor Pulse Rate The signal pulses coming from the vehicle speed sensor are generated for use by the vehicle s computer engine transmission control fuel manage ment ABS brakes etc The pulse rate can vary from 4 000 to in excess of 100 000 pulses per mile The MDS will condition and amplify these pulses for use by the DMI Since the higher pulse rates are not required for accurate dis tance measurements the2. To exit the real time mode press the C HOLD key then the PRINT key RAC 100 and 200 User s Manual Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 This command instructs the RAC 200 to output data previously stored in memory Use the following steps to output the memory to a printer or com puter Once this command is entered DAUD is displayed along with the last baud rate used Make sure the baud rate you se lect is the same as the setup in the serial communications port in your computer see the Appendix for more information on the RAC 200 s RS 232 format Using the ADD or SUB keys you can select the following baud rates 300 600 1200 2400 4800 9600 or 19200 bps After selecting the baud rate to be used press ENTER Loc 0 will then be displayed If you want to output ALL used memory locations press ENTER To start outputting at a cer tain memory location other than zero 0 key in the desired starting location then press ENTER CodE 0 will then appear To output ALL used memory lo cations press ENTER To output just those locations with a specific code number key in the desired code then press EN TER dt mm dd yy will then be displayed with the last date used You can keep this date the same or key in the current date press ENTER id will appear If you wish to use an Identification Num ber key it in 6 digits maximum and press ENTER The output will then begin
3. RAC 100 200 User s Manual If you have any questions about the use of the RAC 100 or 200 please call the following number 1 215 491 4899 Monday Friday 8 00 AM to 5 00 PM Eastern time You may also contact us by fax at 1 215 491 4889 or by e mail at salesO jamartech com For more information on our products or for the latest news in product development visit our web site at www jamartech com For support information specific to the RAC 100 or 200 go to www jamartech com RACSupport htm Address any correspondence to JAMAR Technologies Inc 151 Keith Valley Road Horsham PA 19044 1411 Volume 3 0 March 2002 11 Table of Contents Table of Contents Technical Support sassssssussussssnssssssssussssssssssssssssnssssssnesssunsnse ii Introduction to the RAC 100 and 200 sscsssssssssssssssssessesseeees 1 1 What are the RAC 100 and 2002 1 2 How Do They Work ee ee 1 3 Quick Start G de sulla aa iaia ig 1 4 Installation 7 ille 2 1 Before You Begin o canili elia ti 2 2 Installing the Modular Distance Sensor 2 3 Installing the RAC Instrument i 2 7 Calibration rante 3 1 Automatic Calibration 3 2 If Your DMI Fails to Calibrate 3 4 Manual Calibration Procedure 3 6 Key Functions amp Operating Pro
4. This key is used to activate the Distance Pulse Output feature of the DMI Refer to the Distance Pulse Output procedure on age 4 5 for more detailed information on how this feature can Distance be usedi Pulse Output Chapter 4 Key Functions amp Operating Procedures Procedures RAC 100 Interval Distance This feature allows you to determine the distance between points of interest such as telephone poles signs pavement markings etc You can activate this mode at any time as long as you are not already in a different mode such as Pre Distance Calibrate or Count Hold Step 1 Atthe point you wish to begin measuring intervals Point A press the number 1 key and id will be displayed on the far left digits The distance display will start at zero 0 and begin counting If you already had a distance on display it will not be lost When you exit the Interval Distance mode it is included in the total traveled distance Step 2 When you get to reference point press the 2 key The first interval distance A to B will be displayed and stay on display until the next interval When you get to the next interval press the 2 key again The display will then show the distance from to Continue pressing the 2 key at each reference point and the distance between each reference point will be displayed C to D D to E Eto etc There is no limit as to the number oftimes you can use the 2 key to display t
5. Use only Jujo Paper Co paper part number TP411 28CL Figure A 1 The outside of the thermal paper is at the front RAC 100 and 200 User s Manual This page was intentionally left blank Glossary RAC 100 200 User s Manual Refer to the page number listed after each entry for more information Add black button used to count up or add value to the screen on the DMI Page 4 4 Baud Rate speed at which data is transferred to a computer The RAC 200 s baud rate ranges from 300 to 19200 Page 4 14 Cal blue button on the DMI it is used when calibrating the DMI or to manually enter a new calibration number Page 4 3 calibration course known distance used when calibrating the DMI One thousand feet is ideal but it should not be less than 500 feet Page 3 2 calibration number a number unique to each vehicle that represents the pulses from the transmission received over a set distance This number should be as near to 0 500 1 200 as possible and is necessary for the DMI to count Page 3 2 CLR Clear black button on the DMI that resets the distance or time to zero Page 4 4 C Hold Count Hold red button on the DMI which stops the compu tation of distance pulses Page 4 2 D Hold Display Hold red button on the DMI which stops the display but allows the DMI to continue accumulating distance internally Page 4 Di DMI generic industry term meaning Distance Measu
6. screwdriver etc or your finger press the Sensor Test button for a few seconds The DMI should count when the button is pushed What number it counted doesn t matter as long as it did count If the DMI did count everything from the MDS up to the DMI is okay and the problem is most likely a poor connection at the vehicle s speed 5 3 RAC 100 and 200 User s Manual sensor Make sure you have a good electrical connection at the tap in point Once you are sure you tapped into the correct location it is always better to wire solder the connection After checking the connection plug the VSS Input connector back into the MDS and try the DMI again 4 Perform a Tap Test The Tap Test will determine if the distance pulses being sent from the MDS are getting to and being processed by the DMI The Tap Test is performed using the rotary switch on the MDS First make sure you note the current position of the rotary switch 1 2 4 8 16 32 or 64 as you will have to return the slot back to this same position after the test is completed Next turn on the DMI Press the C HOLD key just like you were be ginning to measure Using a small screwdriver rotate the switch be tween the Tap and Test positions four or five times Note that when the switch is turned clockwise until it stops it is at the Test position The DMI should register The count shown does not matter just as long as the DMI did register a count If it did count the c
7. to 2 55 seconds key in 255 and press ENTER Keep in mind that if you use a long output duration your signals will run together at high speeds A 10 millisecond pulse duration is usually adequate for sending pulses to a laptop computer and will not create a problem at normal highway speeds If you are using DPO capability for a long period of time the tone heard with each output pulse can become somewhat unnerving To activate the DPO signal without tone Step 1 Select the desired unit of measurement Step 2 Press the DPO key Step 3 Key in the desired Distance Interval press ENTER Step 4 Key in the desired signal output duration then press the SUB key The DPO signal will now operate without any tone NOTE When the DMI is turned off the DPO Distance Interval resets to 0 thereby deactivating the output The signal output duration previously used will remain in memory until changed CAUTION The DPO signal can be used to control potentially hazard ous equipment When activated the DPO could cycle this equipment at any time If you are working with this type of equipment TURN OFF the DMI which will deactivate the DPO signal 4 6 Chapter 4 Key Functions amp Operating Procedures Key Functions RAC 200 FEET MILE METER TIME RAC 200 JAMAR TECHNOLOGIES INC Figure 4 2 RAC 200 Key Layout The RAC 200 contains all of the same key functions as the RAC 100 Re fer to pages 4 1 to 4 4 for more info
8. Kit or a Modular Distance Sensor Quick Kit Use the following instructions for installation of the MDS Kits 1 Find a location under the vehicle dashboard that will allow fairly easy access to the MDS Do Not mount the MDS on the heater ducts or where the heater vents will blow directly onto it Attach the MDS using the nylon ties or Velcro provided as shown in Figure 2 1 Figure 2 1 MDS Mounted Under Dash 2 Locate the 2 wires coming from the Vehicle s Speed Sensor VSS On most Ford and Chrysler pick up trucks the best place is on the rear end differential housing using the rear ABS signal On General Motors pick up trucks the best place is the VSS at the transmission On many vehicles both trucks and autos you can go to the cruise control signal or to the vehicle ECU which is often located under the dashboard Your local Auto Truck dealer can usually tell you where the VSS can be located on your vehicle If you need additional assistance contact JAMAR All wires and the MDS itself should be kept away from any heat source that could cause melting 3 Route the red and black end of the 20 grey AS VSS cable through the firewall This can usually be done by using an exist ing rubber grommet where other wires pass through the firewall If you cannot locate an existing hole CAREFULLY drill a small hole large enough for both the VSS cable and the 12Volt Ground wires EXTREME CAU TION must be taken t
9. To see the SPEED and elapsed TIME associated with each event press the T S key SPEED will be shown on the two far left digits elapsed TIME hours minutes seconds will be shown on the remaining six digits To go back to viewing the code and distance press the T S key again If while viewing the memory you forget what memory location you are view ing press and hold the ENTER key The display will show you the current memory location being displayed To exit Memory View press the VIEW key Chapter 4 Key Functions amp Operating Procedures Memory Clear This feature allows you to clear all memory locations that have been stored in the RAC 200 Note that when using this feature all memory locations are cleared To clear the memory use the following steps Step 1 The RAC 200 must be in COUNT HOLD to clear the memory Once this is done press the ERSE key and ErASE will be displayed Step 2 Press the ENTER key while ErASE is displayed The display will step through all of the memory locations 0 999 which takes about eleven seconds When completed ALL memory lo cations will be erased and the display will return to Count Hold If after pressing the ERSE key you decide against clearing the memory lo cations do not press the ENTER key just press any other key An error code E 0 will appear you will exit the MEMORY CLEAR function and the DMI will return to its normal operating state RAC 100 and 200 User s Manual
10. key can be used to Pre Distance the display to enter a known distance starting point You can also add to or subtract from any distance currently displayed You do not have to be in Count Hold to perform the Pre Distance function It can even be done while measuring Step 1 Press the P DIST key and will appear on the far left digits Step 2 Key in the desired distance Step 3 To change the distance display to read the value just keyed in press ENTER A If you just want to add the value to the current distance press the ADD key B To subtract the value from the current dis tance press the SUB key This key allows you to select whether to display your Speed or elapsed Time Step 1 Pressing the T S key one time will show the Speed of your vehicle in the two far left digits At the same time distance will be displayed on the remaining six digits Speed indicated will be in miles per hour or kilometers per hour depending on the unit of measurement Step 2 Pressing the T S key a second time will indicate elapsed TIME in hours minutes and seconds and the TIME LED will be on Although distance is still being computed it will not be displayed simultaneous with TIME Count Hold controls the time event there fore time is being calculated only while actually mea 4 3 RAC 100 200 User s Manual 8 Cl 2 amp 2 a 2 7 bers suring While displaying time you can rese
11. long as the DMI did register a count If it did count the cable from the MDS to the DMI and the instrument itself are OK If the DMI did not count the problem is most likely a bad cable to the DMI or the DMI itself is bad If available try another DMI and repeat the Tap Test If the second DMI doesn t count the problem has to be the cable between the MDS and the DMI Once the test is complete return the Rotary Switch to the previous position If the previous steps do not correct the problem contact us using the infor mation on page 11 3 5 RAC 100 and 200 User s Manual Manual Calibration Procedure It is very common to use one DMI on a plug in basis between a number of different vehicles that have been equipped to accept the instrument Install ing additional vehicle kits on other vehicles is an inexpensive and cost ef fective means to greatly expand your measuring capabilities Obviously each vehicle so equipped would have to be calibrated and the number re corded If you are moving the DMI from vehicle to vehicle you will need to enter the correct calibration number for each vehicle before use The following procedure assumes the calibration number for a particular vehicle has already been determined and recorded Step 1 Step 2 Step 3 Step 4 Slide the ON OFF switch to ON The RAC 100 200 will complete a brief Self Test the current calibration number will be displayed with a three second tone then C H 0 000 w
12. survey stored in memory To step through simply press the VIEW key again The display will show the starting loca tion of the next survey By continuing to press the VIEW key you will be able to see the starting location of every survey stored in memory To select the desired starting location press the ENTER key If you already know the memory location you wish to start at 0 999 key in that location number and press the ENTER key 49 RAC 100 and 200 User s Manual Step 3 Step 4 Step 5 Step 6 CodE 0 will be displayed At this point you are able to re call a specific code number either all memory locations that have just a specific code i e code 50 or all memory locations regardless of the code number To view all memory locations press ENTER To view only the memory locations that have a specific code number key in that code number and press the ENTER key The data for memory location 0 code number and distance will be shown Of course if you only requested to see a spe cific code number i e 45 for 45 mph speed signs the first memory location with that code will be selected Using the ADD and SUB keys you are now able to step forward or back ward through the memory locations Remember that if you selected to see only a specific code as you step forward or backward through the memory you will see only the locations with that specific code number such as all the locations with 45 mph speed signs
13. MDS incor porates a divider circuit to reduce the pulse rate This is done by adjusting Figure 2 5 the rotary switch on the front of the Rotary Switch Adjustment MDS as shown in Figure 2 5 Modular Distros Although your particular vehicle vary generally Chrysler and Ford vehicles use a 4 to 1 ratio position 4 on the switch while General Motors vehicles use a 16 to 1 ratio position 16 on the switch To adjust the ratio use a small screwdriver to rotate the switch until the slot in the switch points to the desired ratio Note that when the switch is turned counter clockwise until it stops it is at the I to I ratio The adjustments go from to 1 1 pulse into the sensor 1 pulse out through 64 to 1 64 pulses into the sensor 1 pulse out The Tap Test positions are explained in the troubleshooting section on page 3 4 You may need to adjust the ratio again based on the results of the calibration procedure de scribed in Chapter 3 Any time you change the pulse ratio you will need to re calibrate the DMI Once you have installed the MDS install your RAC 100 or 200 using the instructions on page 2 7 RAC 100 200 User s Manual DMI Connector de Battery a Ground Black ee The number of pulses per mile from a vehicle will vary with the make and model Your calibration factor should be between 500 and 1 200 If not adjust the rotary switch then recalib
14. Printing and Serial Port RS 232 Output The Print feature allows you to output data from the RAC 200 in one of three ways 1 Into the WinRAC software program This program is com patible with the Windows 95 98 NT 2000 ME and XP operating sys tems and comes with RS 232 cable power supply and manual It has the following features e Reads directly from RAC 200 Converts Event Codes to Plain Language text Capable of merging multiple surveys together Provides extensive color reports and graphs e Allows real time data collection from the RAC 200 Allows direct control of the RAC 200 from a laptop Refer to the WinRAC manual for information on how to retrieve data from the RAC 200 2 Into an independent software program The data from the RAC 200 can be output to any communications program that has been configured properly to read the serial port Refer to the appendix for more infor mation on the RAC 200 s RS 232 format 3 Directly to a printer Data can be output directly to a printer such as the DPU 414 Thermal Printer available from JAMAR Refer to the Appendix for Operating Procedures for the DPU 414 printer When outputting data to an independent communications program or the DPU 414 printer the following Print commands should be used When using the WinRAC program follow the procedures described in the WinRAC manual This command will do a test print us ing a complete set of character
15. able from the MDS to the DMI and the instrument itself are OK If the DMI did not count the problem is most likely a bad cable to the DMI or the DMI itself is bad If available try another DMI and repeat the Tap Test If the second DMI doesn t count the problem has to be the cable be tween the MDS and the DMI Once the test is complete return the Rotary Switch to the previous position 5 If after checking these items the DMI still does not count contact us using the information on page ii Q My DMI counts while the vehicle is not moving What s wrong A There are three possible causes for this 1 Your wiring may be picking up stray pulses from the vehicle This can occur if the wiring is too close to the alternator spark plugs dis tributor cap or engine coil 5 4 2 Your ground wire may not be connected properly Double check its connections 3 Your Modular Distance Sensor may not be working correctly Contact JAMAR using the information on page ii for information on getting replacement parts My DMI will not turn on What s wrong A There are several possible causes for this 1 You may have a loose connection Double check all connections at the MDS DMI to make sure they are tight and at the correct locations 2 There may be a problem with the telephone jack on the power signal cable Check to make sure the contacts are not bent 3 Check the fuse between the MDS and the battery If the internal
16. actor such as 1 to 1 or 1 to 2 Refer to the Ad tween 500 and 1 200 justing the Vehicle Speed Sensor Pulse Rate sec If not you need to ad tion in Chapter 2 for more information on this just the rotary switch Several calibration runs may be necessary to de on your MDS termine which division factor is best for your ve hicle 3 3 RAC 100 and 200 User s Manual If Your DMI Fails to Calibrate If your DMI fails to count during calibration perform the following opera tional checks Step1 Locate the Sensor Test button on the front upper right of the MDS shown in Figure 3 1 When pressed this will gener ate an internal low level signal that is fed directly into the VSS Input circuit First unplug the Figure 3 1 Sensor Test VSS Input connector from the right side of the MDS Second turn on the DMI and press the C HOLD key just like you would prior to starting a measurement Next using a small pointed object pen pencil screwdriver etc or your finger press the Sensor Test button for a few seconds The DMI should count when the button is pushed What number it counted doesn t matter as long as it did count If the DMI did count everything from the MDS up to the DMI is okay and the problem is most likely either a poor connection at the vehicle s speed sensor or the connection is not at the correct loca tion to get the vehicle speed signal The speed sensor output is generally at the transmission or the r
17. ance into the DMI Page 4 3 RAC Road Analysis Computer Brand name for JAMAR s distance measuring instruments RS 232 Serial output a feature of the RAC 200 it allows collected data to be dumped directly into a computer or printer Page 4 12 Sensor Error Detection SED a feature of JAMAR s DMIs it alerts the user to a sensor malfunction Page 5 2 Stor Store green button on the RAC 200 it is used for the memory store procedure Page 4 7 4 8 G 3 RAC 100 and 200 User s Manual Sub black button used to count down or subtract value from screen on the DMI Page 4 4 T S gray button on the DML it allows you to select the display for your elapsed time or speed Page 4 3 unit gray button on the DMI it selects the desired unit of measurement from miles to feet to meters Page 4 3 View yellow button on the RAC 200 it is used for the memory view procedure Page 4 7 WinRAC software available from JAMAR for use with the RAC 200 The program can analyze data downloaded from the RAC 200 as well as collect data in a real time mode Page 4 12 Notes RAC 100 200 User s Manual
18. and show the Header information Memory Locations Event Codes Distance Interval Distance Elapsed Time and Speed At the end of that particular survey END SURVEY will be output and the next survey stored in memory will be output WITHOUT a new header It will be up to you to keep records so that you can identify which survey pertains to a specific route or street and the begin and end ref erence points When all surveys in memory are output the DMI will exit the Print function 4 14 Chapter 4 Key Functions amp Operating Procedures Wireless Infra Red Remote Option If your RAC 100 200 Distance Measuring Instrument has the Wireless Remote Option you will be able to control some basic operating features of the DMI without having to use the keys on the instrument These func tions are e C HOLD Count Hold D HOLD Display Hold INTERVAL DISTANCE 2 Key e UNIT Miles Feet Meters e CLEAR ENTER While it is not necessary to have a direct straight line access from the re mote to the DMI you should try to mount the DMI so that when you oper ate the remote keys there is not more than a 45 degree angle between the remote and the lens on the DMI For convenience Velcro is supplied with the remote that will allow you to attach the remote to the dashboard of the vehicle within easy reach To use the remote pull it off the mounting location point it towards the DMI and press the desired function keys The remot
19. appears on thedisplay showing the first available empty memory location 0 999 If there is nothing in memory the location will be 0 If you have not erased the memory the first empty or unused memory lo cation will be shown Step 2 To continue storing data at the memory location shown press Step 3 ENTER To start at a different location than that shown key in that memory location then press ENTER CAUTION If you decide to start at Location 0 you will overwrite any data stored in subsequent memory locations The two digits to the left of the distance displayed identify the numeric code number Using a numeric code 0 99 your are able to identify the events you wish to inventory As an ex ample an intersection to the right might be a 1 to the left a 2 a bridge a 6 a culvert a 12 a 45 mph speed limit sign a 45 etc As you see an event ahead of you key in its code number us ing the numbered keys The number will appear on the two far left digits When you reach the event using a reference point on the vehicle press the ENTER key The EVENT CODE DISTANCE SPEED and elapsed TIME are stored in memory The two far left digits will show waiting for the next event code If you are going to use a single digit code a zero will always precede the first digit Should you key in an incorrect code you can overwrite it by simply keying in the correct code 4 8 Step 4 Chapter 4 Key Functions amp Operating Proced
20. cedures ccscccssscsssscsssscesssees 4 1 Key Functions RAC 100 ii 4 2 Procedures RAC 100 0 ii 4 5 Interval Distance i eta 4 5 Distance Pulse Output DPO 4 5 Key Functions RAC 200 i 4 7 Procedures RAC 200 u arie ta 4 8 Memory Store eiii 4 8 Memory View gt rinitis reload 4 9 Memory Cleat cani 4 11 Printing and Serial Port RS 232 Output 4 12 Wireless Infra Red Remote Option n 4 15 Troubleshooting snesssesossesesssstsnecssenassesesessessencosennssssnsss 5 1 Error Codes nina adrian 5 2 Frequently Asked Questions 5 3 Appendix 1 Connection and Output Formats A 2 Specifications 0 rai ii A 3 DPU 414 Thermal Printer Operating Procedures A 4 Glossary Aigen hessen G 1 111 RAC 100 and 200 User s Manual This page was intentionally left blank iv Chapter 1 Introduction to the RAC 100 and 200 RAC 100 and 200 User s Manual What are the RAC 100 and 200 The JAMAR Technologies Road Analysis Computer RAC Models 100 and 200 are accurate easy to use distance measuring instruments DMI that use state of the art microprocessor technology The RAC 100 and 200 DMIs have been designed with features to provide you with a versatile and functi
21. ction or faulty sensor Corrective action must be taken prior to continuing measurements Frequently Asked Questions My DMI will not count What s wrong A In most cases when a RAC 100 or 200 won t count it is not the unit itself that has the problem It is usually a problem with the interface sen sor or wiring Check the following 1 Ensure the DMI has a calibration number in memory The DMI will not count if there is not a number in memory As you switch on the DMI the calibration number will be displayed for about three seconds The factory uses 900 as the test number If no number is listed refer to the Manual Calibration Procedure on page 3 6 for information on how to enter a number 2 Ensure that you are attached to the speed sensor output It is gen erally at the transmission or the rear differential If you are unsure about being attached to the correct output disconnect the plug and move the vehicle If the speedometer does not function you have chosen the cor rect plug wires 3 Perform a Sensor Test Locate the Sensor Test button on the front upper right of the Modular Distance Sensor When pressed this will generate an internal low level signal that 15 fed directly into the VSS In put circuit First unplug the VSS Input connector from the right side of the MDS Second turn on the DMI and press the C HOLD key just like you would prior to starting a measurement Next using a small pointed object pen pencil
22. e Your course should be straight and accurate so take the time to measure the course using a 100 tape Mark the beginning and ending points so they can be seen from inside your vehicle Remember the course length can be any accurate distance over 500 feet so for convenience you could use a telephone pole or other marker as reference point Your RAC 100 200 Step1 ON OFF switch to ON Your DMI will perform a brief Self Test The current Calibration Number will be displayed for approximately three seconds then 0 000 will appear with the decimal between the C amp H flashing Step 2 Align your vehicle to the marker at the beginning of the course using a reference point on or in the vehicle such as a window post door handle your shoulder etc Step 3 Press the UNIT key to select feet The FEET LED will come on and 0 will be displayed Step 4 Press the CAL key CL 0 will show up The instrument is asking for the Course Length Key in the length of your calibration course in feet using the numeric keypad and press the ENTER key 0 is again on the display Press the C HOLD key C H will go off 3 2 Chapter 3 Calibration Step 5 Drive the calibration course The count you see represents the pulses seen from your transmission sensor and not the distance being traveled so don t panic when the display doesn t equal the actual length of your course Step 6 When you reach the end of the course stop y
23. e control is powered by a standard 9 volt battery To gain access to the battery for replacement remove the two 2 screws on the back of the remote control unplug the battery make sure you align the connectors with the proper and terminals on the battery and plug in the new battery Replace the screws If your RAC 100 200 has a dark lens on the lower right below the display window it has the Remote Option If there is a black plastic cap in this lo cation you do not have the Remote Option however this option can be added at a later date RAC 100 and 200 User s Manual This page was intentionally left blank 5 Troubleshooting RAC 100 and 200 User s Manual Error Codes The following Error Codes will be displayed if you fail to properly instruct the RAC 100 200 to perform a particular function The unit is more than willing to communicate with you but you must instruct it what to do in a specific sequence If you exceed its capabilities or do not properly tell it what you want you will see an Error Code E E0 E2 E3 E4 ES E7 E9 This only appears during a Memory Erase function Ifthe ERSE key is pressed to complete the erase function you must then press ENTER If you hit any other key 0 will be displayed and the RAC 200 will exit the Erase function This will only appear during a PRINT 8 Memory Dump and indicates that the RAC 200 cannot communicate with the DPU Printer or c
24. ear differential If you are unsure about being attached to the correct output disconnect the plug and move the vehicle If the speedometer does not function you have chosen the correct plug wires If you are at the correct location make sure you have a good elec trical connection at the tap in point Once you are sure you tapped into the correct location it is always better to wire solder the con nection After checking the connection plug the VSS Input connector back into the MDS and try the DMI again If the DMI counts you can proceed with calibration If the DMI still does not count go to Step 2 3 4 Chapter 3 Calibration Step 2 The Test will determine if the distance pulses being sent from the MDS are getting to and being processed by the DMI The Tap Test is per formed using the rotary switch E shown in figure 3 2 First make Figure 3 2 Tap Test sure you note the current po sition of the rotary switch 1 2 4 8 16 32 or 64 as you will have to return the slot back to this same position after the test is com pleted Mou lar Haime Boner c Fl Next turn on the DMI Press the C HOLD key just like you were beginning to measure Using a small screwdriver rotate the switch between the Tap and Test positions four or five times Note that when the switch is turned clockwise until it stops it is at the Test position The DMI should register The count shown does not mat ter just as
25. ent professionally installed contact a garage or speedometer shop in your area Calibrate your instrument Refer to Chapter 3 for detailed instruc tions on how this is done Your DMI will not accurately measure distance unless it is properly calibrated Perform a test measurement with your vehicle Once your DMI has been calibrated you should perform a test measurement over a known distance This will ensure that the instrument has been cali brated correctly To do a test measurement drive to your starting point and stop Turn on the DMI and wait until C H is shown on the right side of the display and zero is shown on the left side Next press the C Hold count hold button to release the instrument from count hold and then drive the distance to be measured Stop and or press the C Hold button once you reach the end of the distance to be measured Familiarize yourself with the features and options of the instrument that you will be using Refer to Chapter 4 for more detailed instruc tions on the functions and procedures of the RAC 100 or 200 Practice Before attempting to use the instrument on a job be sure you are comfortable with how to operate it 1 4 Chapter 2 Installation Chapter 2 Installation RAC 100 200 User s Manual Before You Begin Note The following instructions are for installing a RAC with a Modular Distance Sensor If you are installing a different type of sensor refer to the instruction
26. filament is broken the fuse has been blown My DMI counts in increments of 2 5 10 etc What s wrong A Your calibration number is too high The calibration number should be between 500 and 1 200 You can lower the calibration number by ad justing the jumper block within your transmission interface Refer to Chap ter 2 for more detailed information 5 5 RAC 100 200 User s Manual This page was intentionally left blank 5 6 Appendix RAC 100 200 User s Manual Connection and Output Formats Power Connector Eu Pin 1 Yellow 12 VDC Pin 2 Green Sensor Input Pin 3 Red DPO Pin 4 Black Signal Ground 4321 RS 232 Output Connector Pin 1 Blue Not Used Pin 2 Yellow Ground Pin 3 Green RS 232 In Pin 4 Red RS 232 Out Pin 5 Black Not Used Pin 6 White Not Used 6543721 RS 232 Output Format Baud bps 300 to 19200 Start Bits 1 Data Bits 8 Stop Bits 1 Parity None A 2 100 and 200 Specifications POWER 9 to 16 VDC negative ground DISPLAY 8 Digit Separate LED Indicators for unit measurement 60 High Intensity LED time count hold display hold ACCURACY 1 foot per mile RESOLUTION 1 foot KEYBOARD 21 25 for RAC 200 sealed single function 5 million opera tion with click amp tone feedback ON OFF slide switch WIRELESS REMOTE Capable of accepting Wireless Remote Option SPEED Two digit 0 99 MPH Fps KPH displayed sim
27. he interval distance between points of interest Step3 To EXIT the Interval Distance mode press the 3 key The display is now the total distance traveled so that you have not lost any distance traveled before going to the Interval Distance mode Distance Pulse Output DPO NOTE Use ofthe Distance Pulse Output feature with a Modular Distance Sensor requires a factory modification to the MDS Contact us using the information on page if you need to use this feature with an 5 When activated the distance pulse output will provide a 5VDC TTL level output pulse at a pre selected distance interval and signal duration This low level signal is provided on the red wire in the Power Signal cable The 5VDC signal can be used to send distance pulses to a 4 5 RAC 100 200 User s Manual computer or other device that can accommodate low voltage low current signals Should you wish to control a 12VDC high current device you will need our optional DPO Amplifier To activate a DPO signal with tone Step 1 Select the desired unit of measurement using the UNIT key Step 2 Press the DPO key and Po will be displayed Step 3 Key in the distance interval desired the distance at which you want the distance pulse to be output such as 001 miles 10 feet etc then press ENTER od 0 or a previously used output duration will be displayed Step 4 Key in the desired signal duration from 10 milliseconds key in 1
28. ibed in Mo bile Operation Step 2 Plug the RAC 200 into the JAMAR Power Supply Signal Gen erator Plug the AC Power Supply into the printer Step 3 Turn on both units The printer must be Off Line to advance the paper and On Line for printing Charging Printer Batteries The battery discharges when not used for a long period of time Recharge the battery immediately after purchase or after long periods of storage or inactivity Step 1 Turn off power switch Step 2 Plug the DC connector into the back of the Printer then the AC Adapter into an AC outlet Step 3 Allow the battery to charge 10 hours DO NOT charge continu ously for more than 24 hours Step 4 When finished charging unplug the AC Adapter then the DC connector from the Printer Loading Printer Paper Step 1 Using your thumb pull the paper holder toward the back of the Printer Fig A 1 Step 2 Lift the cover upwards Step 3 Turn power switch ON Step 4 Cut or fold the paper into an inverted V Fig A 2 Step 5 Place the paper roll onto the inside of the cover Step 6 Push the top of the paper into the inlet and feed it by hand un til you can see the top of the paper from the paper cutter Step 7 Press and hold the paper feed button until the paper feeds straight and smoothly When the paper is correctly set the Off Line lamp stops flashing and stays lit NOTE Red lines appear on both edges of the paper when the roll is about to run out
29. ill appear Press the CAL key CL 0 000 will be displayed DO NOT key in a calibration course length just press the ENTER key CF along with the current calibration number will be dis played To change this number key in the new calibration number and press ENTER C H 0 000 is displayed and the new calibra tion number is stored in the nonvolatile memory If you did not key in a new number and just pressed ENTER the old calibra tion number has been placed back into memory Select the desired unit of measurement and press C HOLD prior to measuring Once your DMI is properly installed and calibrated you are ready to begin accurately measuring distance 3 6 4 Key Functions amp Operating Procedures RAC 100 and 200 User s Manual Key Functions RAC 100 FEET MILE TIME RAC 100 JAMAR TECHNOLOGIES INC Figure 4 1 RAC 100 Key Layout Your RAC 100 has been designed for simple operation using large indi vidual sealed keys which provide a Click and Tone feedback This is the slide switch which provides power to the RAC 100 When turned on the RAC 100 will do the following 1 Initiate internal Self Test sequence u 2 Display calibration number with a tone for 3 seconds OFF ON 2 Set itself in Count Hold C H with decimal flashing 3 Set the unit to be used for measuring to the last unit used when shut off 4 Set itself to count UP 5 Set the Distance Pul
30. ng Procedures These instructions can be used to conduct surveys and download data us ing the DPU 414 Printer Refer to the printer s Operation Manual for more detailed information on the printer The DPU 414 Printer is a portable thermal printer that can operate on its internal rechargeable batteries or from the AC Power Adapter Used in the vehicle you are able to obtain a real time printout of Event Code Distance Elapsed Time and Speed With a full charge the batteries provide power for approximately 3000 printed lines When used in the office it is recom mended that you use the AC Power Adapter to extend battery life Mobile Operation Make sure you fully charge the printer batteries before beginning a survey and turn off the printer when it is not in use Step1 Make sure the POWER switch on both the DPU 414 and the RAC 200 are in the OFF position Step 2 Using the interface cable provided plug the snap in or 9 pin connector into the DATA port on the RAC 200 and the 25 pin D type connector into the top receptacle on the back of the DPU 414 printer Two screws on the connector can be tightened to ensure the connector does not accidently come loose Step 3 Turn on the RAC 200 and the DPU 414 The On Line light on the printer should be lit To advance the paper the printer must be Off Line Hold down the Feed button then put the printer back On Line to print Office Operation Step 1 Connect the RAC 200 and the DPU 414 as descr
31. o insure you do not drill into anything mounted on the opposite side of the firewall or cut any existing wiring 2 3 RAC 100 200 User s Manual Use the cable ties provided while routing the cable to the location for get ting the speed signal that you previously identified Attach the red and black wires of the VSS cable to the vehicle s speed sensor wires using the tap splice connectors provided The red wire goes to the high speed signal wire the black goes to the low speed signal wire NOTE The tap splice connectors are supplied for convenience for initial installation However we recommend that once the installation is com pleted and you have verified the instrument is working properly remove the tap splice connectors and solder the connections Insulate using elec trical tape or silicone Modular Saraor 4 Plug the connector of the VSS cable into the hole labeled VSS Input located on the right side of the MDS as shown in Figure 2 2 Figure 2 2 VSS Plug in 5 Route the black DMI cable from the MDS to the desired instrument location This will usually be routed between the doorpost and the dash board Make sure the cable will not be pinched when closing the door If the instrument is going to be mounted to the front of the dashboard you may want to bring the cable straight up the front of the dash There is adequate cable length to allow mount ing the DMI in any desired location
32. omputer Check the cable connections at both the DMI and Printer computer Make sure the Printer is On Line This will be displayed if you select an invalid Print function Any print request other than 5 6 7 or 8 will be considered invalid This code tells you that the last memory location 999 has been used Any further entries into memory will overwrite what had previously been stored in memory location 999 Prior to continuing you should dump the memory to the printer or via the RS 232 output to your computer Erase the memory locations before starting another survey This code tells you there is no data in the memory location selected This will only happen when doing a PRINT 8 Memory Output After the ES is displayed the DMI automatically exits the Print function This tells you that the DPO Distance Pulse Output duration selected is out of range The maximum time for output duration is 255 which equals 2 55 seconds This is the only Error Code that is not operator induced The RAC 100 200 s Sensor Error Detection identifies a sensor pulse error indicating that the DMI did not receive a pulse from the sensor This 5 2 Chapter 5 Troubleshooting is a rare error that will not greatly affect most applications as the distance lost will be equal to the value of your calibration number i e a calibration number of 874 equals 874 feet Should you see the E9 error on a frequent basis you probably have a loose conne
33. onal instrument that can be learned in a very short time The RAC 200 contains all of the features of the RAC 100 with the addition of memory storage and data output This allows for saving of information for later download to a computer or printer The RS 232 port used for down loading can also be used to control the unit in a real time mode from a lap top computer 28 whe Figure 1 1 RAC 100 and 200 Distance Measuring Instruments 1 2 Chapter 1 Introduction How do they work To use the RAC 100 or 200 DMI to accurately measure distance either a modular distance sensor MDS or mechanical transmission interface is used to send pulses to the DMI The Quick Kit which is a modified version of the MDS can also be used Most newer vehicles 1992 and newer have an electronic distance speed sensor inside the transmission which sends pulses to the vehicle s on board computer for use in the speedometer ABS braking system engine transmis sion control etc These vehicle generated signals can be as many as 100 000 pulses per mile which is far more than the DMI needs to accurately mea sure distance Further since the vehicle manufacturers are not concerned with accurate distance and speed readings at very low speeds your speed ometer may not move below 5 mph the signal strength at these low speeds is extremely minimal The MDS is not just an improvement over other electronic interface type sensors First and foremos
34. our vehicle so that you are exactly aligned with the end marker using the reference point on the vehicle used at the beginning of the course Press the C HOLD key and C H along with the pulses counted will be on the display Press the CAL key and CF along with the computed calibration number will be displayed Record this number for future reference Press the ENTER key Your calibration num ber is now stored in nonvolatile permanent memory and C H 0 is displayed The ss calibration number will stay in If you RAC does not memory for more than 40 years until Count during the cali you re calibrate or manually change bration procedure the calibration number You are able refer o the tro uble to view the current number every shiogtine sechon the next page time you power on the DMI os You should rerun the calibration course to verify the calibration for your vehicle Press C HOLD prior to measuring If this is the first time you have calibrated a DML you may want to run the course a couple of times to prac tice being properly aligned when starting and stopping at the course mark ers The calibration number used should be between 500 and 1 200 If your calibration number is below this range you need to use a higher division factor such as 1 to 16 or 1 to 32 by adjusting the rotary switch on your MDS Of course if the cali Your calibration bration number is too high use a lower division number should be be f
35. rate to reach a calibration number within this range Distance Sensor Note If the speedometer does not respond to vehicle movement sim ply reverse the RED and BLACK Fire wires to correct polarity Wall Vehicle Speed Sensor VSS Tap Splice Connectors Most vehicles should have a 2 wire output from the VSS Dodge amp Ford trucks may have the VSS located on top of the rear end housing instead of at the transmission It will nor mally be a 2 wire output small gauge wire Connect the red and black wires of the long 20 VSS cable to the wires from the vehicle s speed sensor Crimp on tap splice connectors are supplied for convenience on initial installation However we recommend removing the tap splice connectors and reconnecting using wire to wire solder once you are sure all connections to the VSS are proper Insulate with sealant electrical tape as needed Figure 2 6 MDS Installation Diagram 2 6 Installing the RAC Instrument The compact case design of the RAC 100 200 allows mounting of it in a number of convenient locations Popular locations include on the front of the dashboard above or below the dashboard or on the windshield using the optional windshield mounting bracket Wherever you decide to mount the instrument remember it should be within easy reach and the display should be visible without obstructions After mounting the RAC plug the black cable from the MDS into the DMI You may want
36. ring Instrument The RAC 100 and 200 are DMIs DPO Distance Pulse Output gray button on the DMI when activated it will provide a 5VDC TTL level output pulse at a pre selected distance interval and signal duration Page 4 4 4 5 EEPROM stands for Electronically Erasable Programmable Read Only Memory It contains the permanent memory of the DMI Page A 3 G 2 Glossary ENTR Enter black button on the DMI it accepts any number keyed into the display Page 4 4 Erse Erase red button on the RAC 200 it is used to clear all memory locations in the DMI Page 4 7 LED stands for light emitting diode the display used with the JAMAR DMI Page 3 Modular Distance Sensor MDS a device which when installed con ditions pulses from a vehicle s speed sensor to the DMI Page 2 3 nonvolatile memory the permanent memory of the DMI it is where the data and calibration number are stored It will remain here for up to forty years unless changed Page A 3 Prnt Print black key on the RAC 200 it is used to print data Page 4 pulses signals generated by a vehicle which when conditioned through a sensor are read by the DMI to calculate distance traveled Page 1 3 pulse rate the frequency at which pulses are sent to the DMI They can vary from 4 000 to more than 100 000 per mile Page 1 3 P Dist Pre Distance yellow button on the DMI it allows you to enter a known dist
37. rmation on these common keys The RAC 200 also contains four additional keys described here When used in combination with several of the number keys this key will output information to a printer or computer Re fer to the Printing and Serial Port RS 232 Output procedures Print on page 4 12 for more detailed information This key is used to set up the RAC 200 to store information in memory Refer to the Memory Store procedure on page 4 8 for more detailed information Store This key can be used to view the information for any of the memory locations to 999 that have been stored in the DMI Refer to the Memory View procedure on page 4 9 for more detailed information This key is used to clear the memory of the RAC 200 Refer to the Memory Clear procedure on page 4 11 for more detailed Erase information RAC 100 and 200 User s Manual Procedures RAC 200 The RAC 200 contains all of the same procedures as the RAC 100 Refer to pages 4 5 to 4 6 for more information on these common procedures The RAC 200 also contains several additional procedures described here Memory Store This feature allows you to store survey information in the memory of the RAC 200 This information can then be reviewed on the display or output to a computer or printer To store information in the RAC 200 use the fol lowing steps Step 1 Select the desired unit of measurement using the UNIT key and then press the STOR key Loc xxx
38. s alpha and numeric Chapter 4 Key Functions amp Operating Procedures This command instructs the RAC 200 to print Real Time without storing any data in the RAC 200 s memory Use the following steps to produce output in a Real time mode Step 1 Step 2 Step 3 Step 4 Once this command is entered d t mm dd yy will be dis played representing the past date used Key in the current date using the proper format such as 082100 for August 21 2000 then press ENTER i d will then be displayed This allows you to key in an iden tification number which could represent an operator code num ber or route number 6 digits maximum Once the ID is en tered press ENTER The printer will then print a Header showing Date Survey ID and identifiers for event unit of measurement time and unit of speed To collect data press the C HOLD key to release Count Hold As you see an event ahead of you key in the appropri ate code number which will be shown on the two far left dig its When you reach the event press the ENTER key This is the same procedure as described in the Memory Store section on page 4 8 The code number distance elapsed time and speed will be printed but not stored in memory There is no limit to the number of events you can record However the DPU printer does have a limit of about 3000 printed lines with a fully charged battery Continue this procedure until the sur vey is complete
39. s that came with the sensor itself The JAMAR RAC 100 and 200 distance measuring instruments DMI are very reliable instruments However there can be some external variables that could affect proper operation and the ability to accurately measure dis tance traveled By observing a few simple precautions you will be able to eliminate potential problems Do not install wires near any object that could cause stray pulses to be picked up such as the alternator spark plugs or engine coil Do not install the wires or sensor near any objects that will get hot such as the manifold The installation wires or sensor can melt if they are too close to a heat source Do not install wires near any objects that could vibrate and cut the wires Tire pressure should be the maximum suggested by the tire manufac turer typically 32 35 PSI cold The tire should have ample tread depth Steel belted radial tires are highly recommended Drive the vehicle 3 to 5 miles depending on climate to warm the tires up to normal operating temperatures prior to calibrating your DMI Refer to Chapter 3 Calibration for more detailed instructions Chapter 2 Installation Installing the Modular Distance Sensor Most newer vehicles 1992 and newer have an electronic speed output rather than a mechanical speedometer cable coming from the transmission With the newer vehicles you will need to install either a Modular Distance Sensor MDS Vehicle
40. se Output interval to zero pulses When in Count Hold C H will be displayed on the left digits with the decimal between C and H flashing If Speed Count is also being displayed C H is not shown The speed drops to Hold 9 but the decimal is flashing If C H is displayed the DMI will not count Press C Hold and C H will go off The DMI will now count as you drive Pressing this key will start or stop the computation of distance Pressing this key will stop the display from counting while internally the DMI will continue to accumulate distance Once pressed dH is displayed on the far left digits with the deci mal to the right of the H flashing If Speed is being displayed dH will not be shown but the decimal will be flashing Note You cannot put the DMI in both Count Hold C H and Display Hold dH at the same time If the DMI is already in Count Hold it will ignore Display Hold and vice versa Display Hold 4 2 Chapter 4 Key Functions amp Operating Procedures Pre Distance Time Speed This key selects the desired unit of measurement This can be done while measuring or at rest When pressed the distance will cycle from MILES to FEET to METERS and then back to MILES The LED indicating the unit of measurement selected will be lit This key is used when calibrating the DMI or to manually en ter a new calibration number Refer to Chapter 3 Calibration for more detailed instructions This
41. t its proprietary circuitry allows more accurate slow speed measurements by sensing signals as low as 10 Mv from the vehicle speed sensor Second it is designed to be mounted under the vehicle dashboard rather than under the hood as with other interface sensors This gets the MDS out of a severe heat and moisture environment and into a more controlled environment Third our exclusive internally generated Sensor Test and Tap Test features allow the user to verify proper sensor and instru ment operation Finally the Modular Design simplifies installation Older vehicles with mechanical speedometer cables use the mechanical transmission sensor which is screwed on to the transmission For informa tion on how to install this type of sensor refer to the instructions that came with the sensor The next chapter details how to install a modular sensor into your vehicle If your already have a sensor installed you may skip to Chapter 3 for in formation on calibrating your DMI 1 3 RAC 100 200 User s Manual Quick Start Guide The RAC 100 and 200 DMIs will allow you to accurately measure distance quickly and easily However before you can do this a few basic steps must be taken to ensure that you get the optimum performance from your instru ment Step 1 Step 2 Step 3 Step 4 Step 5 Install your DMI and its modular sensor Refer to Chapter 2 for de tailed instructions on this If you would like to have the equipm
42. t it to zero without resetting distance by pressing the CLEAR key Step 3 Pressing the T S key a third time cycles back to the first display of distance traveled The DMI is instructed to count up with this key This same key when used with the Pre Distance function will ADD the value entered to the current distance display The DMI is instructed to count down with this key The LED for the unit of measurement will flash telling you that you are subtracting distance Should you count down to 0 the DMI will provide a tone and automatically begin counting up This same key when used with the Pre distance function will sub tract the value entered from the current distance display A third but lesser used function is to turn off the tone when using the Distance Pulse Output This key resets the distance or time to zero 0 For added convenience CLEAR can be used on the run while measur ing This feature will allow you to establish a zero starting point without having to stop your vehicle in traffic or in the center of a busy intersection This key instructs the DMI to accept the previously keyed value on the display such as calibration number Pre Distance etc Remember that after keying in a value you must press the ENTER key These keys are used to identify and select the numbers desired for calibration pre distance distance pulse output etc They are also used in combination with other keys to perform certain functions
43. to consider allowing enough slack in the cable to permit a passenger to hold operate the RAC if necessary Regardless of the mount ing location velcro strips are provided for quick easy mounting amp removal of your RAC Once you have mounted your RAC and connected it to the MDS proceed to the calibration instructions in the following chapter RAC 100 and 200 User s Manual This page was intentionally left blank Chapter 3 Calibration 3 Calibration RAC 100 200 User s Manual Automatic Calibration Procedure In order to accurately measure distance your RAC 100 200 must know the exact distance that the vehicle will travel based on pulses from the vehicle s transmission The calibration number is the automatic calculation that rep resents the number of pulses received over a set distance This number once calculated will remain accurate for any instrument requiring a calibration factor until a change to the vehicle occurs such as different size tires put on the vehicle tire wear air added to the tires etc At that time you must re calibrate In order to calculate the calibration number for must be calibrated in YOU particular vehicle you must first establish a order to accurately calibration course The length of the course can measure distance be any known distance more than 500 feet 1000 feet is ideal In general a shorter more pre cise course is better than a longer imprecise cours
44. ultaneous with dis tance TIME Elapsed Real Time hh mm ss COUNT Bi Directional Up Down CALIBRATION Automatic amp manual w Non Volatile EEPROM Memory TEST System check on power up w display of Calibration Number AUTOMATIC DISTANCE CONVERSION Miles thousandths to Feet to Meters kilometers COUNT HOLD Stops accumulation of distance DISPLAY HOLD Freezes display without loss of distance count PRE DISTANCE Capability of starting at known distance or Add Subtract de sired distance value from current distance display INTERVAL DISTANCE Display of Distance Interval between events DISTANCE PULSE OUTPUT 0 5 VDC low going high user selectable in terval and duration SENSOR ERROR DETECTION Checks for sensor error due to vehicle s dynamic motion MEMORY RETENTION Non Volatile EEPROM for Calibration Number up to 50 years retention CIRCUITRY Solid state modular circuits EEPROM micro computer CASE ABS Non Warping Plastic DIMENSIONS 8 00 x 3 00 x 1 50 WEIGHT 9 oz OPERATING TEMPERATURE 0 C to 75 C INSTRUMENT WARRANTY 5 Years parts and labor MEMORY Storage up to 1000 Event locations 0 99 Event code identifiers Distance Time amp Speed RAC 200 Only DATA OUTPUT Serial RS 232 300 to 19 200 Baud rate user selectable RAC 200 Only EXAMPLE JAMAR Technologies RAC 100 JAMAR Technologies RAC 200 or equal A 3 RAC 100 200 User s Manual DPU 414 Thermal Printer Operati
45. ures number This must be done prior to pressing the ENTER key Once you hit ENTER whatever code was on display is stored in memory There are 1000 memory locations available 0 999 If you plan on conducting a number of different surveys it will be helpful later when downloading the data if you skip a number of memory locations at least one between surveys For example if Survey 1 starts at memory location 0 and ends at 57 set Survey 2 to start at 60 etc To exit Memory Store press the STOR key The display will go back to the normal measuring function NOTE Once in Memory Store you cannot change the unit of measurement displayed You can however select any unit of measurement when view ing or downloading the memory C H Count Hold and DH Display Hold will not be shown when using Memory Store However the appropriate decimal will be flashing indicating Count Hold or Display Hold Memory View This feature allows you to view survey information that has been stored in the memory of the RAC 200 To view this information use the following steps Step 1 Step 2 The RAC 200 must be in COUNT HOLD to view the memory Once this is done select the desired unit of measurement us ing the UNIT key then press the VIEW key Loc 0 will be displayed At this point you have the option of selecting the memory location you wish to start viewing or stepping through to begin at the starting location of an indi vidual
Download Pdf Manuals
Related Search