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Thread: How to convert your ashtray into a digital engine alarm for $39

  1. 4th December 2014, 09:45 PM #31
    leond
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    Quote Originally Posted by wedgetail37 View Post
    How to convert your ashtray into a digital engine alarm for $39.

    Hi, I am interested in the above method, but I need more info such as: Does the unit connect to the original temp sensor, Has anybody got this up and running and does it work well? probably many more questions. I am handy at car electrics but I am no genius. Does the controller come with a wiring diagram and does this system work efficiently. I have looked at many other options, but they are all quite expensive. Any info would be appreciated. Thanks Guys - Gerry

    PS. Mine is a Discovery 1


    Wedgetail37, FYI. I purchased the exact same unit from the same seller who is based in China and it took +4 weeks to arrive. Additionally this thermocouple 2M K Thermocouple K Sensor Probe FOR Temperature Controller | eBay was purchased.
    The Temperature Controller (TC) does come with broken English instructions [ame]http://www.sestos-hk.com/english/download/d1s-en.pdf[/ame]
    Suspect that the specifications have changed since the original post as I couldn't get the unit to work with that wiring included in the photo. The TC settings are correct from the original post however.
    Bench tested it last night with a 12v battery, some wire, a blow torch and LED light.
    If I tidy my work bench, could flick through a photo.
    Wanted to ensure the unit worked prior to drilling, screwing, cutting holes in my TD5 interior.
    In hindsight I should have purchased x2 TC so that a second one could be used to measure EGT.
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  2. 4th December 2014, 09:49 PM #32
    leond
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    Submitted twice Doh!
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  3. 4th December 2014, 10:37 PM #33
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    wedgetail37
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    Thank you Simon. I will give it a go when I receive from Ebay. Thanks again for your time and effort. Top informative post.
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  4. 27th May 2015, 11:58 AM #34
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    Unhappy Need help Simon

    Hi Simonmelb

    Got all the gear. running if off batteries in my shed at the moment whilst I set it up. It is wired exactly as your pic including the buzzer.

    I can read the temp and I can see the temp rise as I apply heat to the K sensor, but the alarm does not go off I have used the temp up and down buttons and tried different temps (eg 40c 60c and 98c) but still no buzzer.

    What do you reckon I have done wrong?? In anticipation thank you - Gerry (wedgetail37)
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  5. 27th May 2015, 06:18 PM #35
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    simonmelb
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    Hi Gerry,

    Did you change any parameters on the controller?

    Not sure if I mentioned this but there are 2 settings you need to change:

    Press and hold the SET key for 2+ seconds to get into the settings.

    Press and release the SET key to scroll through the parameters until you see:

    CtrL - changes this to 0 - which means the controller will work in On/OFF mode, not PID.

    CF - change this to 3 - which means the controller will work in cooling mode, that is close the contacts when the actual temp raises above the set temp. This was most likely the problem I think !

    Have fun with it !

    Cheers
    Simon

    **PS: Ive tried 2 locations for the sensor - the one towards the back of the head above the turbo, and attached to the coolant outlet elbow near the front of the head. I prefer the coolant elbow location as its closer to the true coolant temp. The rear location gets heat soak from the turbo I think, and gives erroneously high readings when under high load.
    Cheers

    Simon
    2003 D2a TD5, ACE, SLS, Vienna Green.
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  6. 28th May 2015, 03:02 PM #36
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    wedgetail37
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    Question Thank you Simon

    Thanks for your help Simon. I am very sure I have done exactly as you have done, but when I connect the sensor wires the alarm goes off and the temp reading goes all over the place. I think maybe I have a faulty unit. Not too worry, thanks again for your help. See ya - Gerry (wedgetail37)
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  7. 29th May 2015, 12:55 PM #37
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    DoubleChevron
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    Has anyone tried one of these:

    Digital Temperature Controller Thermostat 12V 10A 40?? 120

    They are $12.00 with the sensor included!

    seeya
    shane L.
    Proper cars--
    '92 Range Rover 3.8V8 ... 5spd manual
    '85 Series II CX2500 GTi Turbo I :burnrubber:
    '63 ID19 x 2 :wheelchair:
    '72 DS21 ie 5spd pallas
    Modern Junk:
    '07 Poogoe 407 HDi 6spd manual :zzz:
    '11 Poogoe RCZ HDI 6spd manual
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  8. 29th May 2015, 04:45 PM #38
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    vnx205
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    That appears to be the same as the one I fitted. It seems to work well.

    Best Tdi 300 Overheat Alarm

    1973 Series III LWB 1983 - 2006
    1998 300 Tdi Defender Trayback 2006 - often fitted with a Trayon slide-on camper.
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  9. 29th May 2015, 06:07 PM #39
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    Gary S11
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    I have two, and very impressed, one for water temp on a 3.9 disco and the other on the r380 cooler pipe for trans temp.
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  10. 29th May 2015, 06:42 PM #40
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    DoubleChevron
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    Quote Originally Posted by Gary S11 View Post
    I have two, and very impressed, one for water temp on a 3.9 disco and the other on the r380 cooler pipe for trans temp.
    perfect... i have a 3.9 rangie... was going to stick two in it... one on the slugomatic cooler pipe the other on the top radiator hose.
    Proper cars--
    '92 Range Rover 3.8V8 ... 5spd manual
    '85 Series II CX2500 GTi Turbo I :burnrubber:
    '63 ID19 x 2 :wheelchair:
    '72 DS21 ie 5spd pallas
    Modern Junk:
    '07 Poogoe 407 HDi 6spd manual :zzz:
    '11 Poogoe RCZ HDI 6spd manual
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