We got a batch of the Pico WPS500 pressure transducers in today.  Still sorting out some details but we have a page up now for them.  We will be updating this page with any changes.

http://www.autonerdz.com/wps500.html

Hi Tom,

Does it measure pressure like the PV350 rather than pressure difference like the FLS...?

Can it measure wet pressure...?

Thanks,
Joe
:)

tom,
in a previous reply you mentioned strange things happening with other transducers by snappy, ats, etc.  are these kinds of issues a non issue with this particular transducer?

here is your earlier reply:
"We have hit a snag regarding an odd behavior of certain types of transducers we had never really explored.  We are not sure yet, but it seems the type of transducer design as well as the materials impact this behavior.  Many we have looked at, as candidates for this new package, have tested perfectly on the bench but under dynamic conditions, found during a running compression tests, the negative pressures skew.  They show negative pressures that are impossible.

Many of this type are in use today and marketed by Snap-On, ATS and others.  These sensors are just not suitable and do not meet our standards for accuracy.  As you know, our group is a discerning bunch.  But, we are not being too picky here, these are all wildly inaccurate.  Some have software compensations that are designed to cover up the problem but they do not solve it.

We do think we are heading in the right direction with this and will soon be looking at an entirely different design transducer that I hope will not exhibit these issues.  Once we do, we will have something quite unique and superior.  We want to actually solve the problem, not cover it up.  

The goal here is to get a transducer setup that is versatile, accurate, and produces a clean detailed pattern.  More on this, as it develops.

We will eventually produce a presentation detailing the issues and comparing behavior of different units.  Hopefully along with one that is the way it should be...."

Joe,
     Yes this will measure pressure like the PV350, only much cleaner and capable of measuring very low pressures, used it yesterday to measure evap vacuum decay.  There are some examples on our store page http://www.autonerdz.com/wps500.html including fuel pressure.
When the zoom feature is used, the signal is AC coupled and the results are similar to a Firstlook. Otherwise it is measuring actual pressure.

Crackerclicker,
      Many of the transducers we tested were producing impossible results. For example, when compression testing with a custom probe built from sensor specs, we were finding vacuum readings on the intake stroke of -17 PSI.  From what I understand, this is due to the effects of both the time between pressure changes and sudden changes in temperature due to quick pressure changes. The pico transducer performs well under these conditions.

Brian

Joe,

Not running on all cylinders here at Autonerdz headquarters today.  Storm knocked out everything and I am at least temporarily back online until the next one hits tonight.  Brian is telecommuting today because he didn't get hit so bad at his place.

Brian covered it but I just wanted to add that yes, it does wet pressure.  In fact, it has a neat little bleed valve which allows you to bleed out all the air so that trapped air does not interfere with reading small pulses.

Also, just to repeat here what I posted in the Open Forum:

Autonerdz is having our 10 year anniversary on January 1st.  Hard to believe it has been that long since we launched this insane business venture.

We have been racking our brains trying to come up with a way to celebrate and give something special to our customers as a way of saying thank you.

We thought about all kinds of things but none that wouldn't cause someone to be disappointed.  If we gave 10% off for a time, for example, then everyone who already purchased that item would feel like they missed out and want the special extended to them.

So...we nixed all those ideas.  Just no way to prevent that from happening....

Oh, but wait.....no one has purchased one of these transducers yet...they just got here.  There is no one to gripe if we do a 10 year anniversary special on these.  

So, that is what we are doing.  We are starting the party early and you can get 10% off on this item until the end of the year.

Just enter '10years' as a coupon code in the online shopping cart during checkout, or call, to complete your order before Dec 31st.  This offer is subject to availability.  Cannot be combined with any other discount.  Only available when you purchase direct from Autonerdz.

Brian,
Tom,

Thanks for your replies.

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Too bad about the storm, hope everyone/everything is ok.

Regards
Joe

So it's ok to use it to measure fuel pressure directly...

I don't imagine it could be used to measure oil pressure, could it...?

If so, how do you clean it out...?

Brian Haley wrote on Nov 19^th, 2009 at 9:59am:

Joe,      Yes this will measure pressure like the PV350, only much cleaner and capable of measuring very low pressures, used it yesterday to measure evap vacuum decay.

Brian do you have the file of that evap test?


Tom

wow! negative 17 psi is a helluva vacuum!  so, for example, the modis (and others) have software that "hides" this, or compensates?

I uploaded the Evap test data file to the drop site.

Brian

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I understand it can be "wetted" with gasoline...

what about oil or atf...?

Joe,

OK, I'm sure.  Compatible with "Brake, clutch and other hydraulic fluids."  

Might be a good idea to flush out the chamber afterward just to keep it nice and avoid cross contamination..Cleaning is easy and covered in the included manual.

well my xmas present is sorted! was going for renewing my group memebership! been in before i know what im missing! buisness is good so that will be next!

Tom Roberts wrote on Nov 20^th, 2009 at 1:07pm:

Joe, OK, I'm sure.  Compatible with "Brake, clutch and other hydraulic fluids."   Might be a good idea to flush out the chamber afterward just to keep it nice and avoid cross contamination..Cleaning is easy and covered in the included manual.

Tom, ok, thanks.  ;)

 Should anyone want to make up their own adapters  and retain the original coupling to the transducer  they are Foster MFG. CO. 2 series.
   You can go to http://www.couplers.com/page.php?P=distributors and find a distributor nearest you.
 Attached is a pdf for the sockets and plugs available in the 2 series.

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Additional compression hoses are now available for the WPS.  We have beefed up the contents of the kit now to include these and more.

For those of you that missed out on the 10% off anniversary deal that ended Dec 31st, there is no reason to cry.  :'(

Even though the cost is a little higher, with all the extras, we have priced out the new kit package at 10% off list....so the present deal is just as good as before.  

For those of you that purchased the previous packages, we now have the additional kit contents available separately.

Tom, do you have any pics of the additional content...?

Joe,

go to:
http://www.autonerdz.com/wps500.html

there is a pic of the kit with the new hoses and additions

hope the link works

dave

Dave, thanks.