MCL-4027 - Dakota Digital
Contents
1. Dakota Digital MCL 4000 SERIES 1 7 8 LED TACHOMETER MCL 4027S R Dash Panel Gauge ya C clamp Thumb Screw MCL 4027 Function RED fused 12V with key on RED WHITE optional tach pull up for computer tach signals BLUE night dimming input BLACK ground for gauge GREEN switch input GRAY tachometer signal input failure to calibrate the tachom eter may cause erratic and incorrect readings 10 rom resolution 100 rom res above 10 000 Adjustable warning point from 2200 14 600 RPM Hi RPM recall Fast or slow display update rates Optional display dimming feature MOUNTING The MCL 4000 series gauge requires a round hole 1 7 8 diameter It should be inserted into the opening from the front and the U clamp will be installed from the back Tighten the two nuts on the U clamp so that the gauge is secure Gauge depth to the back of the case is approximately 1 3 8 Gauge depth including the mounting studs is about 2 1 8 TACHOMETER SETUP The MCL 4000 series tachometer has three setup menus cylinder setting update speed and warning point Setup is done using the green wire There is a momentary push button switch supplied that can be mounted anywhere so setup and the hi rpm recall function can be easily accessed Connect the green wire to one side of the push button switch and the other side to 12V Default settings are 2 cylinder slow update 5000 RPM warning point TO ENTER SETUP2. 1 start with the key off 2 Press and hold the switch and turn the key on the gauge should light and show Lr1 as long as the switch is held This is the software code and may be used to identify the product 3 Release the switch and the gauge will automatically scroll through the setup menus CYL SPa HI DnE a CYL is the engine cylinder setting selectable from 1 15 cylinders b SPd is the update rate of the display Slow SLo is about 1 2 second and Fast FSt is 1 8 second c HI is the warning point at which the gauge will flash to indicate redline settable from 2200 14 600 RPM d DnE end of setup menus 4 When the desired menu is displayed press and release the switch 5 The current value for the setting should be displayed 6 To change the settings press and release the switch 7 Once the desired value is displayed press and hold the switch to save the changes 8 the display will jump to DnE indicating the new setting has been saved 9 Press and release the switch when DnE is displayed to exit and return to normal operations or 10 The gauge will remain in setup and keep looping thought the menus until the power is cycled off then on MAN 650190 POWER RED WIRE Connect the red wire from the main harness to accessory power from the ignition switch Never connect this to a battery charger alone It needs to have a 12 volt battery connected to it Battery charge
3. 400 rom would be displayed as 11 4 The decimal point indicates the reading has changed from romx10 to romx100 The gauge can be set for a slow update which changes the displayed reading every 1 2 second or for a fast update which changes the displayed reading every 1 8 second The slow update rate is recommended for most applications since rapidly changing numbers can be difficult to read The tach may not read properly with dual fire ignitions FUNCTION SWITCH amp HI RPM RECALL GREEN WIRE The function switch is connected with one wire to a 12 volt source and the other wire to the green wire from the tachometer harness The function switch is used for calibration and to recall the highest rom reached since the last reset Pressing and releasing the function switch while the gauge is running will display HI and then the current high rom This will repeat every 2 seconds Holding the function switch for about 2 seconds will reset the high rom Pressing and releasing the switch will return the gauge back to normal operation NIGHT DIMMING BLUE WIRE Your display system has a dimming feature that reduces the display intensity Normally the system is at full brightness for daytime viewing When the blue wire has 12 volts the display intensity will be reduced Connect this to switch able 12V to enable this feature To have the system at full brightness all of the time leave the blue wire disconnected TROUBLE SHOOTING GUIDE Plea
4. otadigital com Copyright 2007 Dakota Digital Inc MAN 650190
5. rs have an unregulated voltage output that will cause the system to not operate properly GROUND BLACK WIRE amp RING TERMINAL The black wire is the main ground for the gauge A poor ground connection can cause improper or erratic operation Connect the ground to a good chassis ground directly to battery ground Also connect the ring terminal on the main harness to one of the mounting studs after the clamp has been installed before the thumb nut is screwed on to secure the gauge This provides a ground for the case of the gauge TACHOMETER SIGNAL GRAY WIRE The gray wire connects to the vehicle tach signal On point type and pointless distributors connect to the negative side of the coil This will sometimes be labeled TACH or DIST On distributorless ignition systems connect to the tach output wire or to the negative wire of one of the coils On MSD ignition systems connect to the tach output terminal For tach signals integrated into a vehicle wiring harness consult a service manual to determine the color code and location of the tachometer signal The tachometer signals from some engine computers require a weak 12 volt pull up for correct operation of the gauge Tie the gray and white red wires together if this is needed The tachometer is adjustable from 1 to 15 cylinder signals and setup is discussed above The gauge displays the engine romx10 from 300 9990 and romx100 for 10 000 18 000 2500 rom would be displayed as 250 and 11
6. se read this before calling Dakota Digital for technical assistance Problem Gauge will not light up Gauge lights up but does not read correctly Gauge always flashes Gauge will not dim Gauge remains dim at all times Gauge will not go into the SETUP mode Gauge displays Er1 Gauge displays Er2 Gauge displays Er4 Gauge displays Er followed by a number Possible cause Red wire does not have power Black wire is not getting a good ground Gauge is damaged Cylinder setting is not set correctly Loose connection on signal input Poor ground connection Voltage or wiring problem in vehicle harness Failing ignition system component more common on points style High warning point set too low Blue wire is not connected correctly Blue wire is getting power all of the time Switch is not connected properly Cylinder setting is invalid 1 15 cylinders Update speed error slow or fast High RPM warning point error 2200 14 6k Multiple errors have occurred and the error numbers have been added Solution Connect to a location that has power Connect ground to a different location Return gauge for repair See TACH SETUP in manual to change setting Check signal input wire gray wire Move gauge ground wire to different ground location Check wiring harness for loose damaged wires and check wire routing is not close to spark plug wires Check or replace ignition system components Adjust
7. the high warning points using setup menu Check wiring Blue wire should have 12 volts when dimming is desired Connect blue wire to 12v through a switch or leave unconnected Verify correct connection of switch to 12V and green wire See TACH SETUP in manual See TACH SETUP in manual See TACH SETUP in manual For Er3 see solutions for Er1 and Er2 For Er5 see solutions for Er1 and Er4 For Er6 see solutions for Er2 and Er4 For Er7 see solutions for Er1 Er2 and Er4 MAN 650190 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
8. warranty work must include a copy of the dated sales receipt from your place of purchase Send no money We will bill you after repair Dakota Digital 24 Month Warranty 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 within 24 MONTHS FROM THE DATE OF PURCHASE 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 Any action for breach of any warranty hereunder including any implied warranty of merchantability must be brought within a period of 24 months from date of original purchase 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 Dakota Digital 4510 W 61ST St N Sioux Falls SD 57107 Phone 605 332 6513 FAX 605 339 4106 www dakotadigital com dakotasupport dak
Download Pdf Manuals
Related Search