In cab indicator lights triggered off a hobbs switch

J

JasonCzerak

New member
There's no good spot I could find for this question since I'd like to get all makes (and views) on this question

So, I'm looking to hook up a hobbs switch not to turn on a device or active a system, but to indicate proper pressure has been reached with a simple light of some sort.

I'd like this light to be visible during the day and at night with out blinding me.

Suggestions?

Incandescent or LED doesn't matter.

This application will be for my water system. I'll get an adjustable hobbs and tune it to where the water pressure should be at WOT. It would be nice to know that the water runs out/ pressure isn't there with a simple light like this without reading a gauge. So it comes on at WOT, so that means it can't be a distraction to my visibility while driving "on the track". should it be dark out. ;-)
 
I wired mine to a hobbs switch, and put it in the pillar next to my boost gauge. I could tell the light was on without having to directly look at it, and didnt blind me either.
 
here is a pic of my fuel pressure warning light, hooked to a hobbs switch in my case i used it for fuel pressure, if the pressure dropped below 12 psi it would turn on the auto meter warning light
 

Attachments

  • DSC_0068.JPG
    DSC_0068.JPG
    55.4 KB · Views: 72
Graphic Man said:
here is a pic of my fuel pressure warning light, hooked to a hobbs switch in my case i used it for fuel pressure, if the pressure dropped below 12 psi it would turn on the auto meter warning light
Click to expand...

ahh, but damn, that's ugly hanging out off the gauge like that. . ;-)


anyone have a more "cleaner" install for
 
Here's where I mount all my indicator lights.
DSC01177.jpg

DSC00990-2.jpg


The 3rd gen shows lock-up and the 2nd gen shows when the water isytem is on and at full voltage on the controller.

Jared
 

Attachments

  • DSC01177.jpg
    DSC01177.jpg
    94.8 KB · Views: 10
JaMan said:
Here's where I mount all my indicator lights.
DSC01177.jpg

DSC00990-2.jpg


The 3rd gen shows lock-up and the 2nd gen shows when the water isytem is on and at full voltage on the controller.

Jared
Click to expand...

Kinda what I was looking for

Easily visible at day and night? what kinda of lights are they? where I can get them? Hobbs switch-able I'm assuming.
 
I would mount the hobbs switch on a hose of some form. The vibrations from the motor have been known to make the switch jump on and off.
 
JasonCzerak said:
Kinda what I was looking for

Easily visible at day and night? what kinda of lights are they? where I can get them? Hobbs switch-able I'm assuming.
Click to expand...

Yup day and night, I got mine at Radio Shack for about $2/each and yes mine were ran off a Hobbs switch.
 
I've never liked using pressure switches, cheap ones especially, on a fluctuating or fast-changing pressure source. Some of them, like the Barksdale Little General in the center of my tool box rail, are just clunky and wonky. Set 'em to 50 PSI on a solid air supply, but if gets an air bubble in it it'll water hammer against the contacts and not get a clean signal until 70 PSI.

I prefer to use a pressure transducer, a comparator and a potentiometer. The pressure transducer outputs a voltage or amperage proportionate to the pressure, then a comparator turns something on when the transducer's signal gets above the potentiometer's signal. It tends to be more reliable and cleaner that way, and you can mount the little pot wherever you want.

Might want to consider a buzzer instead of a light; that way you don't have to take your eyes off the road.
 
Hmmm buzzer...... Not a bad idea either. and you can hide the bugger.

Rarely, if ever is the stereo on when "going fast" so that might just be a really good idea
 
You must log in or register to reply here.
Back
Top