SPEED GENERATOR INTERFACE UNIT
Contents
1. WWW ORKOTADIGITAL COM DSL 1 E DIESEL TACH INTERFACE UNIT This unit can provide a tachometer signal to drive a standard ignition system tachometer The input signal can be from a tachometer output from the alternator from a gear tooth sensor reading the flywheel teeth or from an engine timing gear sensor In addition to the setup mode calibration using gear tooth count fine adjustment can be done during normal operation to fine tune the gauge needle position if needed The and buttons allow fine adjustment to be performed with the engine running Here is a general overview of the DSL 1 s control functions Each of the different applications below will be described in detail starting on page 2 in this manual Setup Set input mode Select the input mode depending on your application Ait alternator W terminal tach signal FLY flywheel gear tooth sensor signal Er timing gear tooth sensor signal Begin with the key off 2 Press and hold the SET switch while turning the key on The display will show the current version code 3 Release the SET switch The display will show SEt 4 Press and release the SET switch The current input mode will be shown ALE FLY or 9r Press and release the INC switch to change the input mode Press and release the SET switch to save it 5 The CAL value will be set next See the detailed instructions listed later in the manual for your specific application Set output2. ess and release the INC switch until in is shown 5 Press and release the SET switch Press and release the INC switch to select 5 19 P L or End 6 Press and release the SET switch Press and release the INC switch to change the setting press and release the SET switch to save it Trouble shooting guide Problem Possible Cause Solution Tachometer will not work No power to DSL1 Check the power and ground terminals lights are off on the DSL 1 Should be 11 15 V dc Tachometer will not work No input signal Test for 1 20 volts AC at the signal dot is on steady in terminal with the engine running DSL 1 set for wrong input Change the Setup 5 19 option type See instructions on page 1 Grounding interference Make sure both the speed sensor and DSL 1 are grounded at the same point Tachometer will not work Wrong output type Try switching from normal output dot is flashing to the high voltage output High voltage boost required Use HI VOLT to drive gauge and jumper NOT USED terminal over to HI VOLT Tachometer will not DSL 1 set for wrong input Change the Setup 5 19 option to LU read at low RPM type See instructions on page 1 Tach signal is too low Check sensor connections for ground problems or shorts Test the ground connection between DSL 1 and sensor Check for another device loading down the sensor Tachometer will not DSL 1 set for wrong input Change the Setup 5 19 option
3. h output high voltage tach output jumper to HI VOLT output for some early Toyota tachometers IN a z o iva O aD Zz irr z GROUND SIGNAL IN NOT USED Hi vort NORMAL S Ss Ss N Ss N ours DIESEL TACH INTERFACE POWER dakotadigital com SET Gear tooth sensor Calibration Adjust with engine running To increase the tachometer reading press and hold the push button switch To decrease the tachometer reading press and hold the push button switch Preset or adjust The calibration value tooth count can be set from 32 254 1 Begin with the key off 2 Press and hold the SET switch while turning the key on The display will show the current version code Release the SET switch The display will show SEE 4 Press and release the INC switch until FLY is displayed then press and release the SET switch 5 The display will show the hundreds digit of the currently stored calibration value Press and release the INC switch to set this from 0 2 for your desired calibration value 6 Once finished press and release the SET switch to move to the tens digit Press and release the INC switch until your desired value is shown 7 Press and release the SET switch to move to the ones digit Press and release the INC switch until your desired value is shown 8 Press and release the SET switch to save the ones digit and finish 9 The display should now show the next me
4. l com 12V Accessory Power 1 2 rate tach output GROUND standard tach output Sensor ground not used high voltage tach output Alternator W terminal jumper to HI VOLT output for some early Toyota tachometers Determining required calibration ratio It is easiest to begin with the CAL ratio set to 1 00 The new calibration ratio to make the tach read correctly is found using the equation below Actual RPM Tachometer reading calibration ratio Calibration Adjust with engine running To increase the tachometer reading press and hold the push button switch To decrease the tachometer reading press and hold the push button switch Preset or adjust The calibration value can be set from 0 250 4 00 1 Begin with the key off 2 Press and hold the SET switch while turning the key on The display will show the current version code Release the SET switch The display will show SEE 4 Press and release the INC switch until ALE is displayed then press and release the SET switch 5 The display will show the ones digit of the currently stored calibration value Press and release the INC switch to set this from 0 4 for your desired calibration value 6 Once finished Press the SET switch to move to the tenths digit Press and release the INC switch until your desired value is shown 7 Press the SET switch to move to the hundredths digit Press and release the INC switch until
5. mode Select the output gauge cylinder count 4 6 or 8 1 Begin with the key off 2 Press and hold the SET switch while turning the key on The display will show the current version code 3 Release the SET switch The display will show SEt 4 Press and release the INC switch until Jue is displayed 5 Press and release the SET switch The current cylinder count will be shown 4 6 or E A 2000 rpm output signal will be generated reflecting the current cylinder count for gauge testing 6 Press and release the INC switch to change it press and release the SET switch to save it MAN 650530 ALTERNATOR TACH INTERFACE UNIT SEE ALE For using a standard 4 6 8 cylinder tachometer on a diesel engine the DSL 1 E can convert a signal from the W terminal on an alternator and convert it into a tachometer signal for a standard gas ignition system tachometer Not all alternators have a W terminal The unit is adjustable to allow for the different numbers of poles on the alternator as well as different pulley sizes on the engine and alternator Calibration should be done using a light tach or another known reference for engine speed The DSL 1 E has an adjustable range of 4 00 to 0 250 Calibration can be set using the setup mode and display or adjusted in real time while the engine is running Wiring instructions are provided below o z oO c fe D 2 w o DIESEL TACH INTERFACE SIGNAL IN dakotadigita
6. nu option 5 19 Turn the key off o 3 MAN 650530 TIMING GEAR TACH INTERFACE UNIT SEE Or Convert a signal from an engine timing gear tooth sensor to an ignition tachometer signal For using a standard 4 6 8 cylinder tachometer on a diesel engine the DSL 1 E can convert a timing gear sensor signal into an a standard gas ignition signal Calibration is accomplished by determining the number of teeth on the timing gear or using another tachometer as a reference Consult a vehicle service manual to determine the sensor color code and connection The GROUND terminal on the DSL 1 E should be connected to a good ground The SIGNAL IN terminal will connect to the timing gear sensor signal Connect the POWER terminal to 12V accessory power NORMAL terminal will provide the standard signal to the tachometer If your tachometer will not read from this then try the HI VOLT terminal DIESEL TACH INTERFACE dakotadigital com 12V Accessory Power J Uei rate tach output GROUND standard tach output Sensor ground not used high voltage tach output Timing gear signal jumper to HI VOLT output for some early Toyota tachometers Calibration Adjust with engine running To increase the tachometer reading press and hold the push button switch To decrease the tachometer reading press and hold the push button switch Preset or adjust The calibration value tooth count can be set from 1 64 1 Begin
7. of purchase Send no money We will bill you after repair Dakota Digital Limited Lifetime Warrant DAKOTA DIGITAL warrants to the ORIGINAL PURCHASER of this product that should it under normal use and condition be proven defective in material or workmanship for the lifetime of the original vehicle it was installed in such defect s will be repaired or replaced at Dakota Digital s option This warranty does not cover nor extend to damage to the vehicle s systems and does not cover removal or reinstallation of the product This Warranty does not apply to any product or part thereof which in the opinion of the Company has been damaged through alteration improper installation mishandling misuse neglect or accident This Warranty is in lieu of all other expressed warranties or liabilities Any implied warranties including any implied warranty of merchantability shall be limited to the duration of this written warranty No person or representative is authorized to assume for Dakota Digital any liability other than expressed herein in connection with the sale of this product LN F Q a a eee oe Phone 605 332 6513 BeA Denz 1oux Falls 571 Fax 605 339 4106 ee ae www dakotadigital com on V dakotasupport dakotadigital com Copyright 2011 Dakota Digital Inc
8. th the key off 2 Press and hold the SET switch while turning the key on The display will show the current version code 3 Release the SET switch The display will show SEt 4 Press and release the INC switch until GUE is shown 5 Press and release the SET switch The display will show the current cylinder count and provide a 2000 RPM signal on OUT1 and OUT2 6 Press and release the SET switch to quit To test the input while driving 1 Begin with the key off Press and hold the INC switch while turning the key on The display will show t5t Release the SET switch The display will show Anytime either switch is pressed the display will update and hold the frequency This can be done to determine the type of signal being fed to the DSL 1 This information can be supplied to tech support to assist in setup and configuration of the unit 5 The unit will remain in this mode until the key is turned off PON Advanced Setup Change input signal settings These settings are set automatically when the setup mode is selected If needed they can be manually changed The signal type can be changed between low voltage and high voltage signal types The input pullup can be turned on or off 5 9 LoorHi P U anoraFF Begin with the key off 2 Press and hold the SET switch while turning the key on The display will show the current version code 3 Release the SET switch The display will show SEt 4 Pr
9. to H read at high RPM type See instructions on page 1 Tachometer will read Ignition wire too close to Route the sensor signal and ignition when the engine is off sensor signal wire or injector wires away from each other to avoid interference Signal In and OUT wires Route the input and output wires away routed too close from each other to avoid feedback Ground interference Make sure the speed sensor and DSL 1 are grounded together Sensitivity set incorrectly Change the Setup 5 9 option to H 1 SERVICE AND REPAIR DAKOTA DIGITAL offers complete service and repair of its product line In addition technical consultation is available to help you work through any questions or problems you may be having installing one of our products Please read through the Troubleshooting Guide There you will find the solution to most problems Should you ever need to send the unit back for repairs please call our technical support line 605 332 6513 to request a Return Merchandise Authorization number Package the product in a good quality box along with plenty of packing material Ship the product by UPS or insured Parcel Post Be sure to include the RMA number on the package and include a complete description of the problem with RMA number your full name and address street address preferred and a telephone number where you can be reached during the day Any returns for warranty work must include a copy of the dated sales receipt from your place
10. with the key off 2 Press and hold the SET switch while turning the key on The display will show the current version code Release the SET switch The display will show SEt Press and release the INC switch until 497 is displayed then press and release the SET switch The display will show the tens digit of the currently stored calibration value Press and release the INC switch to set this from 0 6 for your desired calibration value 6 Press and release the SET switch to move to the ones digit Press and release the INC switch until your desired value is shown Press and release the SET switch to save the ones digit and finish 8 The display should now show the next menu option 5 19 Turn the key off Slee N Diagnostic Testing The basic power up and operation can be verified with the display on the DSL 1E The dot in the upper left corner will be on steady when the unit is powered up and not getting a speed signal The dot will be flashing when a tach signal is present When the key if first turned on the display will show the current CAL value for a few seconds If both switches are pressed at the same time the current incoming tach signal frequency will be displayed If the frequency displayed has a decimal point then the reading is kHz otherwise the reading is Hz Both the input and outputs can be tested with special diagnostic modes To test the outputs and tachometer reading with the engine off 1 Begin wi
11. your desired value is shown 8 Press the SET switch to save the hundredths digit If the value is 1 00 or higher the calibration value will be saved The calibration set is done 9 If the value is 0 99 or lower the thousands digit will now be set Press and release the INC switch until the desired value is shown Press the SET switch to save and finish 10 The display should now show the next menu option 5 9 Turn the key off w 2 MAN 650530 FLYWHEEL TACH INTERFACE UNIT SEE FLY Convert a signal from a flywheel gear tooth sensor to an ignition tachometer signal For using a standard 4 6 8 cylinder tachometer on a diesel engine the DSL 1 E can convert a flywheel sensor signal into a standard gas ignition signal Calibration is accomplished by determining the number of teeth on the flywheel or using another tachometer as areference An inductive gear tooth sensor such as Dakota Digital Inc part 620008 should be mounted so the teeth pass by the end of the sensor The GROUND terminal on the DSL 1 E should be connected to a good ground The SIGNAL IN terminal will connect to one terminal from the sensor and the SENSOR GND terminal will connect to the other Connect the POWER terminal to 12V accessory power NORMAL terminal will provide the standard signal to the tachometer If your tachometer will not read from this then try the HI VOLT terminal DSL 1E 12V Accessory Power J 1 2 rate tach output GROUND standard tac
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