Results 1 to 10 of 10
  1. #1
    Join Date
    Sep 2001
    Posts
    18,589

    Default old VDO rev counters.

    I have tow of these rev counters and have forgotten how to wire them up, they have four terminals, (+) (-) (24) (12). Anybody know how to wire them up on 24 volt system.
    If I agreed with you we'd both be wrong.

  2. #2
    Join Date
    Nov 2013
    Location
    Perth WA
    Posts
    2,439

    Default Re: old VDO rev counters.


  3. #3
    Join Date
    Nov 2001
    Location
    Me: Johannesburg South Africa Yacht: Richards Bay East Coast Africa
    Posts
    7,347

    Default Re: old VDO rev counters.

    Quote Originally Posted by ccscott49 View Post
    I have tow of these rev counters and have forgotten how to wire them up, they have four terminals, (+) (-) (24) (12). Anybody know how to wire them up on 24 volt system.
    If you can give me the VDO part number I an look up in my manual as there are several different types of VDO rev counter
    Life is too short not to have a sea view
    Distantshaws tinyurl.com/yclt6l68

  4. #4
    Join Date
    Sep 2001
    Posts
    18,589

    Default Re: old VDO rev counters.

    Quote Originally Posted by Rogershaw View Post
    If you can give me the VDO part number I an look up in my manual as there are several different types of VDO rev counter
    two numbers on it, N 02 030 401 and 44 700 - 80 000. Please.
    If I agreed with you we'd both be wrong.

  5. #5
    Join Date
    Nov 2002
    Location
    Colwell Bay
    Posts
    5,711

    Default Re: old VDO rev counters.

    Do they connect to a mini gen or a tacho sense output on the alternator?

    That makes a difference.

  6. #6
    Join Date
    Sep 2001
    Posts
    18,589

    Default Re: old VDO rev counters.

    Quote Originally Posted by burgundyben View Post
    Do they connect to a mini gen or a tacho sense output on the alternator?

    That makes a difference.
    Eyup Ben! Alternator sensed.
    If I agreed with you we'd both be wrong.

  7. #7
    Join Date
    Nov 2002
    Location
    Colwell Bay
    Posts
    5,711

    Default Re: old VDO rev counters.

    Quote Originally Posted by ccscott49 View Post
    Eyup Ben! Alternator sensed.
    Ahoy Scotty!

    You need power and ground to the instrument, then a wire from the alternator sense output, usually marked with a ~ symbol like a sine wave, to the same terminal on the back of the tacho also usually marked with a ~ like symbol.

  8. #8
    Join Date
    Sep 2001
    Posts
    18,589

    Default Re: old VDO rev counters.

    dont have a sine symbol, just 12, 24, plus and minus.
    If I agreed with you we'd both be wrong.

  9. #9
    Join Date
    Nov 2002
    Location
    Colwell Bay
    Posts
    5,711

    Default Re: old VDO rev counters.

    Quote Originally Posted by ccscott49 View Post
    dont have a sine symbol, just 12, 24, plus and minus.
    In which case, I would connect plus and minus to a switched power supply and to ground.

    I would connect the tacho output on the alternator to 12 or 24 accordingly.

    (Don;t blame me if it goes up in smoke!)

  10. #10
    Join Date
    Sep 2001
    Posts
    18,589

    Default Re: old VDO rev counters.

    Thats what I reckoned, be 24 for me, as I am 24v system.
    If I agreed with you we'd both be wrong.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Latest YBW News

Find Boats For Sale

to
to