No
The voltage from the regulator is regulated not dropped to provide a constant 10v to the gauge.
If you did it the other way the reading would fluctuate as the battery voltage fluctuated.
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| smiths temperature gauge https://www.ausmini.com/forums/viewtopic.php?f=2&t=83375 |
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| Author: | mad-mk1 [ Wed Nov 06, 2013 4:20 pm ] |
| Post subject: | smiths temperature gauge |
hey gurus, i believe im in a pickle. well i think i am anyway. i have an aftermarket loom (classicwiring looms) which adds a few extra things (immobilizer etc) and does away with a few things. leaving me with headlight relays and a blade fuse box etc. i am running classic gauges all smiths, and im wondering about wiring up the temperature gauge. how would i go about it? the places i have read, tell me to take 10v from the voltage stabilizer to one pin on the gauge and the other too the sender. could i just take 12v from the fuse box, and i would likely need a resistor or something? sorry for the dumb questions! cheers jamie |
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| Author: | minijcar [ Wed Nov 06, 2013 5:52 pm ] |
| Post subject: | Re: smiths temperature gauge |
No The voltage from the regulator is regulated not dropped to provide a constant 10v to the gauge. If you did it the other way the reading would fluctuate as the battery voltage fluctuated.
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| Author: | Mick [ Wed Nov 06, 2013 7:17 pm ] |
| Post subject: | Re: smiths temperature gauge |
minijcar wrote: No The voltage from the regulator is regulated not dropped to provide a constant 10v to the gauge. If you did it the other way the reading would fluctuate as the battery voltage fluctuated. As well, you can't judge the amount of current the gauge consumes as it changes with temperature, so the resistor would be at best a guess, and not represent the correct reading across the range. |
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| Author: | minijcar [ Wed Nov 06, 2013 7:52 pm ] |
| Post subject: | Re: smiths temperature gauge |
Ohms law |
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| Author: | mad-mk1 [ Wed Nov 06, 2013 7:56 pm ] |
| Post subject: | Re: smiths temperature gauge |
My issue is I don't use the voltage stabilizer, unless I have missed something when it was wired |
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| Author: | phillb [ Wed Nov 06, 2013 11:08 pm ] |
| Post subject: | Re: smiths temperature gauge |
mad-mk1 wrote: My issue is I don't use the voltage stabilizer, unless I have missed something when it was wired Your standard fuel gauge should also be running off the voltage stabiliser. I would recommend an electronic stabiliser instead of the old original one too. |
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| Author: | mad-mk1 [ Thu Nov 07, 2013 7:59 am ] |
| Post subject: | Re: smiths temperature gauge |
Ok looks like I need to do some more research into this. Where would you start with an electronic one? |
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| Author: | drmini in aust [ Thu Nov 07, 2013 8:40 am ] |
| Post subject: | Re: smiths temperature gauge |
mad-mk1 wrote: Ok looks like I need to do some more research into this. Where would you start with an electronic one? PM Wombat, he makes em cheap with 3 flying leads so you just hook up as per usual. I can't remember what the chip is.. Can either put it in the original can or just hide it in the wiring. |
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| Author: | S_Squirel [ Thu Nov 07, 2013 8:48 am ] |
| Post subject: | Re: smiths temperature gauge |
L78 10 CV L78 3 pin regulator 10V constant http://www.ebay.com.au/itm/L78xx-Series ... 2ecb188cc0 Cheers |
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