Farringdon RCA5 Series Installation And Operating Instructions Manual Download | Manualshive

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The RCA50 Series of Tachometers

Installation and Operating Instructions

Revision 8

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Summary of Contents for RCA5 Series

Page 1: ...The RCA50 Series of Tachometers Installation and Operating Instructions Revision 8 ...

Page 2: ...The Push Button 2 4 Shift Lights 3 Setting Up Your Tacho 3 1 Using the Push Button 3 2 Number of Cylinders 3 3 Tell Tale and Other Modes 3 4 Ignition Pulse Filter 3 5 Shift Light Settings 3 6 Resetting the tell tale 4 Installing the Filter Unit Older Models Only 4 1 Purpose 4 2 Fitting 4 3 Commissioning 5 Troubleshooting ...

Page 3: ...conds Supply Current mean Less than 100 mA without shift lights less than 150 mA with shift lights Accuracy 100 rpm or 1 2 Fitting Your Tachometer 2 1 Mounting the Tachometer The RCA50 tachometer is 80 mm in diameter the RCA51 is 100 mm in diameter and the RCA52 120 mm and the hole in your dash should accept this diameter It will require 60 mm behind the dash to accommodate the depth of the instru...

Page 4: ...und or Chassis Red 12 volt Supply A fused 12 volt supply from the master switch or Ignition if there is no master switch Violet Trigger input Negative side of coil or to dedicated tacho output from engine ECU Grey Shift Light 1 Output Supplied shift light ONLY or 52 mm gauge tell tale enable Blue Shift Light 2 Output Supplied shift light ONLY Orange Backlighting Lighting 12 volts Black White and R...

Page 5: ...olt 50 mA signals that are designed to drive the LED shift lights supplied by Farringdon Do not connect filament type lights to these outputs it will not drive them Orange Blue Wire Connect this to the lighting supply a supply that switches to 12 volts when the lights are on 2 3 The Push Button Grey and Pink wires The push button should be mounted where you can reach it while being able to read th...

Page 6: ...n the following paragraphs numbers refer to the first digit on the tacho scale e g when setting the cylinders to 4 the white hand has to be set to 4000 rpm however this is marked maybe 4 or 40 To enter set up mode hold the push button down and then apply the power The tell tale needle will move to 1 the first set up item and the main hand will show the currently set no of cylinders When the needle...

Page 7: ...ty This may need to be changed to match the pulse from a special sensor For ignition coil connected wiring set it to positive Chronometric Action If this option is selected with settings 4 5 6 or 7 the tacho moves the main needle once every half second in the manner of the original mechanical chronometric movements This action is switched off after reaching 5000 rpm for 0 to 8 000 and after reachi...

Page 8: ... tale hand when in manual mode simply press the push button after the tell tale reading has been shown Important Notes Further steps in the set up process can be skipped at any time by switching off the tacho but only the settings that have been terminated with the 5 second long push button press will be saved If you increase a setting so that it reaches the maximum on the scale it will wrap round...

Page 9: ...t wire of the filter unit to the violet wire of the tacho b Connect the black wire of the Filter Unit to ground c Connect the negative of the coil to the green or blue wire The blue input provides more filtering than the green so start with the green wire Temporarily insulate the unused blue or green wire 4 3 Commissioning Set the tacho filter setting to 8 See Section 3 4 for details of how this i...

Page 10: ...s no rpm No or incorrect trigger pulse Make sure that the trigger pulse is greater than 5 volts and falls to less than 0 2 volts Set trigger pulse filter to 1 Tacho does not show correct rpm Trigger pulse setting is incorrect Check set up Set to factory setup start of section 3 and start again Call Farringdon for help Main hand drops to 0 above a certain rpm Filter setting is too high Reduce filte...

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