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Vdo Programmable Tach With Hourmeter



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4 bmob k6 rdgpooaUYImm Programmable Tachometer Dimensional Drawings 80mm 85mm4 100mm 80mm 85mm4 100mm332 84mm356 89mm416 sensor necessary to provide the signal to your newVDO Tachometer is not included This sensor is available from your auto parts dealer Part numbers for VDOHall Effect Sensors are 340 011 340 012 340 013 and340 014 The VDO Generator Sensor is Part 340 001VDOs Inductive Sensor is Part 340 0201 Refer to Diagram B for dimensions The 3mm80mm3 85mmdiameter of about 3 85mm4 100 mmtachometer requires a hole diameter of about 4 100mmpanel remember that the panel cannot be more than 20 mm32 Careful measuring is a must for proper mounting ofyour tachometer An improperly placed hole would be acostly mistake so measure everything twiceREMEMBER THERE ARE NO SECONDCHANCES ONCE YOU HAVE MADE YOURHOLE MEASURE TWICE CUT ONCE3 Cut the hole If you do not have a hole saw the exactsize needed use the closest size and carefullywiden the hole with a halfround file or other similar4 Note If you plan to calibrate your tachometer performthis step Place the tachometer in the opening andsecure it with the supplied VDO SpinLok clamp asshown in Diagram C You may also mount the an optional VDO mounting bracket and nutsI Mounting the Tachometer1 Prepare insulated spade terminals for use with thetachometer Make sure all wires are long enough toreach the necessary positive and negative terminals andany wires from the sensor2 Connect the wire from pin 4 to a switched 12 voltor 24 volt source A switched 12 or 24 volt wire canbe found coming from the ignition switch Follow thiswire to a junction and attach the wire from pin 4 atthis junction ie fuse block etc3 Connect a wire from pin 5 to a constant 12 or 24volt source4 Attach the wire from pin 3 to a ground negativesource One such source can always be found where thebattery is attached to the metal frame of the vehicleUse an appropriate connector to ground this wire5 Attach the wire from pin 8 to the positive tachometer signal source usually a terminal on the igbutt splice and a crimping tool6 Attach the wire from pin 7 to the negative terminal of the sender or floating ground usually aterminal on the ignition coil or the generator in a diesel7 Crimp a spade connector onto a short wire andattach the connector to a terminal on one of the supplied lamp sockets This lamp socket is referred to asSocket A8 Crimp the other end of the short wire along withII Wiring the TachometerThe VDO Programmable Tachometers featured inthis installation manual are available in three diameters 3 80 mm3 85 mm100 mmAll tachometers can be programmed to function withgasoline engines or with diesel engines and can be usedwith most ignition coils These instructions describethe installation wiring calibration and operation of allVDO Programmable tachometers analog display clearly shows thenumber of revolutions per minute and the LCD displayshows the accumulated engine hours This display isalso used in the programming calibration and fine tuning of the VDO Programmable pulses needed by the tachometer are providedEffect sender or an inductive sender depending on thetype of engine If you are not sure where to tap theignition to get the necessary signal consult your or contact the engine Information Read these before installing thetachometer Do not deviate fromassembly or wiring instructions the battery ground beforemaking any electrical Socket Push in Bulb 12volt GE 161 or SpinLok Mounting instructions contain gauges of different sizes must determine the size of your gaugebefore cutting any holesHole saw or jigsaw may not be needed spade andor tool andor soldering ironTachometer Installation andfor Programmable Tachometer with Sheet 0 515 012 037Rev yoeRH4 yoeRH4 xneQG3 xneQG3 xneQG3 xneQG3 zmydyzSzKB91 mdSKB91 QJC5 QJC5 QJC5 QJCbd5fhj t Ignition Electronic Control Box alternator Generator and Inductive U 114 B7B6gNdXB T2GUl W7Ln3VxxG If you know the exact calibration value for the vehicle andtype of sensor you are using that value to manually calibrate the tachometerTo calibrate your VDO Tachometer manually1 Press and hold in the button on the tachometer as youstart the engine Hold in the button until the word is displayed on the LCD readout2 As soon as you see the word release the buttonAfter a few seconds the display will start flashing a series ofnumbers factory default the value of the ignitionin your vehicle For example a number like P 1470 willshow on the display with each digit flashing in turn fromright to left except the rightmost digit a zero which isfixed3 As each number flashes press the button and hold ituntil the correct digit appears Refer to Diagram HFor example lets say the number that represents the cortem in your vehicle is 165 Whenyou begin the manual calibration process the LCD displaysa default value When the first digit starts flashing pressthe button to start cycling through the numbers When thenumber 5 appears release the buttonAt this point the number 5 is set and the digit to its immediate left begins to flash Press the button again andhold it until the number 6 appears Release the buttonRepeat the procedure until the 1 appears Again releasethe button At this point the correct calibration for combination has been properly setinour example 165 After a few seconds the value you have entered will be downloaded intothe tachometers microprocessor and the LCD display revert to its normal mode Manual calibration of the tachometer is now completeIn the future you can use this method to update the calibration value stored in the computer should it ever This function also allows you to manually adjustthe calibration value after you perform the automatic calibration processPULSETo use the mode1 Press the button on the back of the tachometer hold itin and turn on the ignition Release the button whenthe tachometer display reads 2 Now you must enter two values one for the number ofcycles in the engine you are using the second for the number of cylinders in the engine To program the tachometerfor use with a 4cycle 6cylinder engine for example pushand hold the button until the digit 4 appears Release thebutton for a second then push and hold it again until thedigit 6 appears as shown in Diagram G Then release thebutton After several seconds the display will automatically revert to its normal modeProper mounting of the VDO Tachometer015 015015 012015015 015015 012015015VDOA number comes up whenyou release the buttonDigits begin with the seconddigit from the modes as displayed on the Tachometers LCDVDOThe display lists the selectionmode as the mode as and the mode as When you see the method you wish to use let go ofthe button and that function will be enabledSee Diagram FProgramming the tachometer for the number of cylinders in your gasoline engine can be done easily usingthe mode1 Programming the CylinderEngine type Hold button in until the leftmost digit rotates to the number 4 Thenrelease the button briefly Hold in the button again until the correct number of cylinders comes up inthis example 6C When finished release the button The display will show the correct numberof cycles and cylinders for your enginein our example 4 cycles and 6Calibration of the VDO Tachometer with Hourmeter is arelatively simple procedure and can be accomplished inany of three waysBy programming in the number of cycles andthe number of cylinders in the gasoline engineBy the input of the known the diesel engine and ignition system beingused with the a reference point for adjustmentor fine tuningmile mode as xxxxxxx When you see the method you wish to use letgo of the button and that function will be enabledSee Diagram FIII Calibrating the Tachometera second piece of wire long enough to reach the lightswitch Attach this connector to a terminal on the remaining lamp socket whichwill be referred to as Socket B9 Reconnect the battery and turn on the ignition tomake sure the tachometer is working When you turn onthe ignition the tachometer will do an automatic selftest During this selftest the pointer moves over thewhole scale range and the LCD display shows the wordshow the current working hour on the engine hourmeterSince this is the first time power has been applied to theinstrument the reading will be 00 See Diagram Eeverything is working properly the installation is complete If it isnt recheck your wiring and your connections and try the selftest againYou gain access to the calibration functions by pressingthe button on the back of the tachometer and holding itin the button the display will throughthe three calibration methods and stopping on each oneDuring 32 Volts100 mA600 mA with light4 F to 158 DATATo access and use the fine calibration function1 Press and release the pushbutton on the back of thetachometer This enables you to adjust the ratio between 20 and 20Adjustments are made in pressing and holding the button When the adjustmentis complete release the button After a short time thedisplay reverts back to its normal mode See Diagram Jfor examples ofDisplay 1 00 difference to the adjusted valueDisplay 2 20 difference to the adjusted valueDisplay 3 25 difference to the adjusted valueTO COMPLETE THE Step 4 of Section One on Page 1 When thetachometer is secure in the panel your installation is4 Fine the ignition is on and power is supplied to thetachometer you can select the fine calibration functionto very accurately adjust the running speed difference ratio This allows for compensation of over various speed ranges for example Thisfunction also allows for syncronization of two engines If you move the pointer past the upperlimit of the calibration range the LCD display willflash and you will only be able to adjust the If you move the pointer past the limit the LCD display will also flashand you will only be able to adjust the pointer upExample 1Example 2Example 3To manually calibrate the pointer on the analog display1 Press and hold in the button on the tachometer as youturn on the ignition and start the engine Hold in thebutton until the word shows up When it doesrelease the button Set the RPM using a reference tachometer at a value above idle eg 2000 RPM2 Press the button once and the word will bedisplayed on the LCD readout Press it twice rapidlythen release it for a second and the word displayed So if you need an upward calibration of thepointer press the button once If you need a press the button twice rapidly and release it3 When either or is showing press the buttonagain and hold it in If you hold the button in for just ashort time the pointer will move slowly either upwards ordownwards depending on which mode you selected Thisallows for a very accurate adjustment of the pointer Holding the button in for a longer period of time makes thepointer move between 30 and 100 are possible butmust be done WITH A REFERENCE Analog Pointer You can adjust the calibration of the tachometers analogdisplay the pointer showing revolutions per minute function onthe LCD readout The pointer can be repositioned anywhere within the calibration range of the pointer by pushingand holding in therear of the is recommended that these adjustments be doneonly by experienced mechanics4 When you have repositioned the pointer where youwant it release the button and wait If no further adjustments are made within one minute the tachometer willrevert back to the normal operating modeyqKJm4f V Quality Quality Quality Version Distiller 705 Windows0 515 012 037 Programmable Tach with hourmeter rev 0301p65


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