JAMAR Technologies RAC Plus Series User Manual Download Page 1

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Summary of Contents for RAC Plus Series

Page 1: ...i...

Page 2: ...ot extend to any products which have been subject to misuse neglect accident incorrect wiring not our own improper installation or use in disregard of instructions furnished by JAMAR This warranty doe...

Page 3: ...astern time You may also contact us by e mail at sales 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 supp...

Page 4: ...tance Sensor 2 3 Installing the RAC Instrument 2 7 Calibration 3 1 Automatic Calibration Procedure 3 2 If Your RAC Fails to Calibrate 3 5 Manual Calibration Procedure 3 7 Key Functions Operating Proce...

Page 5: ...1 1 Chapter 1 Introduction to the RAC Plus I Plus II Chapter 1 Introduction...

Page 6: ...sor technology The RAC Plus I and RAC Plus II DMIs have been designed with features to provide you with a versatile and functional instrument that can be learned in a very short time The RAC Plus II c...

Page 7: ...inimal The MDS is not just an improvement over other electronic interface type sensors First and foremost its proprietary circuitry allows more accurate slow speed measurements by sensing signals as l...

Page 8: ...ent with your vehicle Once your RAC has been calibrated you should perform a test measurement over a known distance This will ensure that the instrument has been calibrated correctly To do a test meas...

Page 9: ...2 1 Chapter 2 Installation Chapter 2 Installation...

Page 10: ...o 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 ho...

Page 11: ...ignal On 2005 and later Ford trucks connect at the top rear of the transmission tail shaft on 4x4 where the transmission meets the transfer case with the JAMAR red wire to the vehicle s blue yellow wi...

Page 12: ...ions Insulate using electrical tape or silicone 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 5 Route the black DMI...

Page 13: ...pulse rate This is done by adjusting the rotary switch on the front of the MDS as shown in Figure 2 5 Although your particular vehicle may vary generally Chrysler and Ford vehicles use a 4 to 1 ratio...

Page 14: ...SS located on top of the rear end housing instead of at the transmission It will normally be a 2 wire output small gauge wire Connect the red and black wires of the long 20 VSS cable to the wires from...

Page 15: ...of the dashboard if that is your preferred location For best results attach the L bracket so that the bottom of the L is facing away from the RAC as shown in figure 2 7 Using the two L brackets allows...

Page 16: ...RAC Plus User s Manual 2 8...

Page 17: ...3 1 Chapter 3 Calibration Chapter 3 Calibration...

Page 18: ...more than 500 feet One thousand feet is ideal but the course can be any distance over 500 feet for example 623 feet from pole to tree Your course should be straight and accurate so take the time to m...

Page 19: ...eing shown in D 1 This is not the distance being traveled so don t panic when the display doesn t equal the actual length of your calibration course When you reach the end of the course stop your vehi...

Page 20: ...g and stop ping at the course markers Important Ideally the calibration number used should be between 500 and 1 200 If your cali bration number is below this range you need to use a higher division fa...

Page 21: ...C did count everything from the MDS up to the RAC 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 location to get...

Page 22: ...nd Test positions four or five times Note that when the switch is turned clock wise until it stops it is at the Test position The RAC should register The count shown does not matter just as long as th...

Page 23: ...ehicle The following procedure assumes the calibration number for a particular vehicle has already been determined and is stored in memory Step 1 Slide the ON OFF switch to ON The RAC Plus will comple...

Page 24: ...tion number for the vehicle selected Step 5 Press Enter to return to the initial menu screen then press Enter again to exit the menu function The new vehicle number and or calibration number is stored...

Page 25: ...4 1 Chapter 4 Key Functions Operating Procedures Chapter 4 Key Functions Operating Procedures...

Page 26: ...provides power to the RAC Plus When turned on the RAC will do the following 1 Initiate internal Self Test sequence 2 Display calibration number in D 1 and vehicle number in D 2 along with a 3 second t...

Page 27: ...2 The display of speed is not interrupted by either the Count Hold or Display Hold keys The Menu key allows you to select from a variety of func tions After pressing the Menu button the Add and Sub ke...

Page 28: ...ed the brightness will drop one level until the lowest level is reached It will then jump back to the high brightness level Both D 1 and D 2 as well as the LED indicators are controlled by the Dim key...

Page 29: ...subtract off a distance currently on display in D 1 Note The RAC must be in Count Hold to use Pre Distance Step 1 Press the Menu key the 3 key then the Enter key At this point the unit is ready to ha...

Page 30: ...ar key or just let it continue to run To return to normal mode press the Menu key then the Enter key To Set Timer to Real Time Step 1 Press the Menu key then the 4 key then the Enter key D 1 shows the...

Page 31: ...interval and signal dura tion This low level signal is provided on the red wire in the power signal cable The 5VDC signal can be used to send distance pulsed to a computer or other device that can ac...

Page 32: ...top computer and will not overlap at normal highway speeds Step 4 Press Enter and you will be prompted to select whether or not you want an audible tone to sound when the DPO signal is triggered The 1...

Page 33: ...icatethattheDPOsignalhasbeen deactivated Step 4 Press Enter to return to the initial menu screen then press Enter again to exit the menu function You are now back in the normal mode with the DPO signa...

Page 34: ...s the Menu key then the 6 key D 2 then indicates that you are in the Memory Store function Step 2 Press Enter D 1 displays the last date that was used in the memory store func tion Note There is no ch...

Page 35: ...ll begin to count once the vehicle begins to move The four digits in D 2 display the numeric code numbers as they are keyed in Using a numeric code 0 9999 you are able to identify up to 10 000 separat...

Page 36: ...orrect number This must be done prior to press ing the Enter key Once you hit the Enter key the code that was in D 2 is stored in memory Step 8 When the inventory route is completed press the CH key K...

Page 37: ...Menu key then the 7 key to access the Memory Status function Step 2 Press Enter and the RAC will change to show the amount of memory remain ing and the number of surveys stored D 1 shows the percenta...

Page 38: ...tion Erase will be listed in both D 1 and D 2 Step 2 Press Enter and D 1 will begin flashing to alert you that you are about to clear ALL surveys in memory Step 3 Press Enter again and D 1 will change...

Page 39: ...l dis tance while D 2 will be used to show the Interval Distance Step 2 As you pass each reference point press the Enter key D 1 continues to show overall distance travelled while D 2 will lock on the...

Page 40: ...RAC Plus User s Manual 4 16...

Page 41: ...5 1 Chapter 5 Troubleshooting Chapter 5 Troubleshooting...

Page 42: ...ion you have chosen the correct 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...

Page 43: ...he cable from the MDS to the RAC and the instrument itself are OK If the RAC did not count the problem is most likely a bad cable to the RAC or the RAC itself is bad If available try another RAC and r...

Page 44: ...phone 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 filament is broken the fuse has been blown Q My RAC c...

Page 45: ...A 1 Appendix Appendix...

Page 46: ...are is designed to retrieve the data from the RAC Plus II and generate a report showing the data collected in the field You can also save the data in a variety of standard formats Excel spreadsheet Ac...

Page 47: ...riety of formats Allows real time data collection from the RAC Plus II to your laptop or PDA custom Map data Refer to the WinRAC Plus manual for specific information on how to retrieve and process dat...

Page 48: ...ezes display without loss of distance Pre distance Capability of starting at known distance or Add Subtract desired distance value from current distance display Interval Distance Display of distance b...

Page 49: ...esets the distance or time to zero Page 4 4 CH Count Hold red button on the RAC which stops the computation of distance pulses Page 4 2 DH Display Hold red button on the RAC which stops the display bu...

Page 50: ...ed Page 1 3 pulse rate the frequency at which pulses are sent to the RAC They can vary from 4 000 to more than 100 000 per mile Page 1 3 P Dis Pre Distance menu function of the RAC it allows you to en...

Page 51: ...No ______________________ Cal Factor _________________ Veh Odometer _______________ User Initials ________________ Date _________________________ Veh No ______________________ Cal Factor ____________...

Page 52: ...RAC Plus User s Manual A 8...

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