7 replies to this topic

[mahesket]

Hi guys,

i have recieved my temp gauge today its a smiths electric one. i understand that to power the gauge i need to runa 10v supply from the voltage stabilizer.

i was reading through threads most of yesterday and couldn't find any information on how take the supply from the stabilizer i believe i need to get it from the I side of the unit, but how this is done i am unsure.

any help would be great in this matter as i need to find out whats going on with my engine temp.

i have an 1985 mayfair with the twin binacle infront of the driver.

Matt

[paulrockliffe]

You need a power supply fro your battery to the voltage stabiliser, then a wire from the voltage stabiliser to the correct terminal on the rear of the gauge, then a wire from the other terminal on the gauge to the temperature switch on the engine. The circuit is earthed through the engine.

If that isn't correct, then the one I put in this morning going to work!

[mahesket]

is that using the voltage stabilizer which is attached to the PCB behind the clocks? or by using a standalone voltage stabilizer just for the gauge.

How do i connect to the voltage stabilizer from the battery and then from there to the gauge? if its the one attached to the PCB.

[paulrockliffe]

is that using the voltage stabilizer which is attached to the PCB behind the clocks? or by using a standalone voltage stabilizer just for the gauge.

How do i connect to the voltage stabilizer from the battery and then from there to the gauge? if its the one attached to the PCB.

The one on the back of your gauge would already have power to it, so you shouldn't need to worry about that. I don't know where you'd take the wire off though without looking at one. If you know where the voltage stabiliser is you might be able to work it out. If you're really stuck or it doesn't seem like you can take a feed withotu damaging it, you could just get a stand alone voltage stabiliser and have it wired compeltely independent of the instrument binacle.

[mahesket]

cheers, hopefully i will be able to take it straight from the one on the instrument binacle if i can connect to the correct side without damaging the PCB.

[speedtrifle]

The attached might be of use.

Cheers,
Chris.

Attached Files

•  SmithsVoltageStabilizer.pdf   330.8K   13 downloads

[dklawson]

Chris, thanks for posting the PDF. There is actually a later copy (rev 1) that can be downloaded from:
http://home.mindspri...eStabilizer.pdf

Matt, my advice is don't try and tap into the existing stabilizer on a cluster type gauge package. Use the search feature here for other recent gauge related threads. Within the past month I posted the part number for a 1 Amp solid state 10V regulator chip you can order from Maplin. Solder wires to it, mount it on a metal bulkhead somewhere and wire it to the gauges. The chip will need an earth connection and a switched 12V supply. Others with later cars will be able to suggest specific fused lines to tap into.

As mentioned above, if you want to use the existing Smiths stabilizer (or if you want to install a stand-alone additional Smiths stabilizer) switched 12V power for the stabilizer is brought in on it's "B" (battery) terminal. EITHER gauge terminal can be connected to the stabilizer's output " I " (instrument) terminal. The remaining gauge germinal receives the wire connected to the sending unit. The stabilizer MUST have a good earth connection to work.

[mahesket]

Cheers for the above links there great i heard you mention that link in a previous post but couldn't find it thanks for posting it up, i'll hopefully get it sorted this weekend.