DaveFJ
|
| posted on 5/12/06 at 07:07 PM |
|
|
magnetic speed sensor?
Just recieved my new instrument set from the states (haneline teleflex) 
Very pleased with them and the service, however- they have supplied a pulse generator instead of a magnetic proximity sensor for the speedo feed.
because of the hasle (and cost) invovled I am thinking of just finding a suitable item in the UK rather than go through all the shipping/import duty
business again
So.. my question is....
where can I find a suitable sensor at a decent price? and are they all the same or do I need to match it to the speedo in some way?
if it makes any difference the pulsew generator they have supplied is a item HL148 - unfortunately it would stick out to far from the gearbox to fit
in the tunnel 
Dave
"In Support of Help the Heroes" - Always
|
|
|
|
|
numnuts
|
| posted on 5/12/06 at 07:24 PM |
|
|
Why dont you try ETB (digi dash) as they supply magnetic pick up's for the speedo 
|
|
|
Danozeman
|
| posted on 5/12/06 at 07:29 PM |
|
|
Iv got a push bike pick up on my acewell. Maybe that will work?? Just 2 wires to connect.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
|
|
|
hearbear
|
| posted on 5/12/06 at 07:42 PM |
|
|
www.europaspares.com
instruments - gauge senders - cobra range
Europaspares SC8904 4 magnet speedo sender £28.40
[Edited on 5/12/06 by hearbear]
3.9Ltr SSC Stylus should be fun
|
|
|
DaveFJ
|
| posted on 5/12/06 at 07:45 PM |
|
|
but will they work? are these things all the same ?
cheers
Dave
"In Support of Help the Heroes" - Always
|
|
|
hearbear
|
| posted on 5/12/06 at 07:49 PM |
|
|
I have it myself and it just makes and breaks as the magnets pass so you can send to earth or send feed to speedo
3.9Ltr SSC Stylus should be fun
|
|
|
Agriv8
|
| posted on 5/12/06 at 08:22 PM |
|
|
avoid the cheepie etb sender ( couldnt get that one to work ) a VDO one worked first time
regards
Agriv8
Taller than your average Guy !
Management is like a tree of monkeys. - Those at the top look down and see a tree full of smiling faces. BUT Those at the bottom look up and see a
tree full of a*seholes .............
|
|
|
pajsh
|
| posted on 5/12/06 at 09:32 PM |
|
|
Get this from RS. Product of an earlier thread (search on speedo sensor)
http://rswww.com/cgi-bin/bv/rswww/searchBrowseAction.do?obs=sObs&name=SiteStandard&No=0&N=0&Ntk=I18NAll&Ntt=reed%20switch%20m6&
;
Virtually the same as Europa and 1/3rd the price. Postage will cost you as much as the sensor but still less than half price.
I had a Europa one and it got broken as I mounted it badly. Replacement from RS is fine.
Same thing just one extra wire.
I used to be apathetic but now I just don't care.
|
|
|
grusks2
|
| posted on 5/12/06 at 10:14 PM |
|
|
Im looking at doing the same as i ordered a set of gauges from the states with a pulse sender for a ford box, but same old trouble, to big.
I tested the pulse sensor with a multimeter, it makes a circuit every 90 degrees, so a 4-magnet pick up in theory do the same.
Ive been looking as well for a pick in this country, rather than the states with more import tax. Never thought of RS
|
|
|
Agriv8
|
| posted on 6/12/06 at 08:49 AM |
|
|
quote:
Originally posted by pajsh
Get this from RS. Product of an earlier thread (search on speedo sensor)
http://rswww.com/cgi-bin/bv/rswww/searchBrowseAction.do?obs=sObs&name=SiteStandard&No=0&N=0&Ntk=I18NAll&Ntt=reed%20switch%20m6&
;
Virtually the same as Europa and 1/3rd the price. Postage will cost you as much as the sensor but still less than half price.
I had a Europa one and it got broken as I mounted it badly. Replacement from RS is fine.
Same thing just one extra wire.
good find !!!
Taller than your average Guy !
Management is like a tree of monkeys. - Those at the top look down and see a tree full of smiling faces. BUT Those at the bottom look up and see a
tree full of a*seholes .............
|
|
|
DaveFJ
|
| posted on 6/12/06 at 08:50 AM |
|
|
which one do i need off that RS components page though? whats the difference between
130 Vac and
NO 470 Vac
??? <guess i is well fick init?>
cheers
Dave
"In Support of Help the Heroes" - Always
|
|
|
02GF74
|
| posted on 6/12/06 at 09:55 AM |
|
|
quote:
Originally posted by DaveFJ
which one do i need off that RS components page though? whats the difference between
130 Vac and
NO 470 Vac
??? <guess i is well fick init?>
cheers
without looking, NO means normally open, so when the magent gets close to the switch, it closes.
Vac is voltage ac - we are looking at 12 V most so either is fine.
I had a look at maplins prices for the switch are
from £ 1.51, same for the magnet. you can buy magnet/switch combo (home alarm systems) for £ 2.29.
Quick look at the reed switch shows life is > 100 M operations, rough computation is 833 hrs @ 60 mph 
BTW, I have account with RS who are just up the road from me so if you want that part, PM me and I can get if for you - postage at cost.
|
|
|
DaveFJ
|
| posted on 6/12/06 at 02:05 PM |
|
|
OK here is the comparison table for the 3 reed switches from RS:
 
Description
As you can see 2 are N/O and one is C/O
they also have different switching current and capacity Sooooo.........
which one?
cheers
Dave
"In Support of Help the Heroes" - Always
|
|
|
greggors84
|
| posted on 6/12/06 at 02:59 PM |
|
|
Beware of the Maplins home security reed switch. I was a bit worried about how quick it would react. 4 magnets on the prob and it will need to be able
to spring back pretty quick.
And sure enough, on the rolling road, it got up to 50mph and just stayed there. Once the speed came down below 50mph it was fine again.
Ive got one of the RS ones and works fine. My needle moves a little, but i think that maybe the mount. Was fine for SVA.
Will see if I can find out which one it was. It was definately normally open. Is the bottom one definately normally closed?
Edit: Just checked and mine was the bottom one. Not sure what C/O means but it definately closes when I pass a magnet past it. As said works fine for
me.
[Edited on 6/12/2006 by greggors84]
[Edited on 6/12/2006 by greggors84]
Chris
The Magnificent 7!
|
|
|
Alan B
|
| posted on 6/12/06 at 03:26 PM |
|
|
I think C/O means changeover.....i.e. 3 contacts.... one common, one N/C, one N/O
Perhaps someone can confirm or tell me I am talking crap....
|
|
|
DaveFJ
|
| posted on 6/12/06 at 04:39 PM |
|
|
just had a read of the pdf for the c/o item and that does appear to be correct
So what are the benefits of the Acetal item?
Damn this is getting complicated huh!
Dave
"In Support of Help the Heroes" - Always
|
|
|
