WPS 500 vs FLUKE PV350 PRESSURE TRANSDUCER

[@SuperMarioDiagnostics]

I have the pv350 and am pretty satisfied with it, but if i were you get a pico. For sure I'd buy a wps. But i wouldn't dare throw away the fluke

[@rrmech11]

Exactly Mario

[@kyhomegarage3430]

Well said my friend.👍👍

[@kellyr9388]

You answered alot of my question for equipment. Thanks you for your efforts.

[@billyyoder8171]

Thank you Ramon. Good job. I appreciate your videos. Have a blessed and safe week.

[@8power0]

I appreciate both of them .

[@rrmech11]

Yes

[@kyhomegarage3430]

Very reliable precision tools👍👍

[@secretsquirrel9722]

Would you consider now testing " The Gadget Playlist's" 12v transducer against these 2 as an updated test to see comparative accuracy?

[@kyhomegarage3430]

I don’t have that pressure transducer but it looks promising.

[@bartscave]

Is the fluke accurate below 0 psi, in the intake vacuum pocket?

[@johnaclark1]

Interesting video, Ramon. I have a couple of generic pressure transducers with some cables that I made for my Vantage and Vantage Pro. I haven't tried them for in-cylinder pressure testing as I assumed they weren't good enough. However, after watching this I may go experiment with them. I saw in another comment here that you call yourself "100% KZbin certified." I, too, am the same and while I haven't yet mastered the scope as well as you have, I have fixed some cars that local shops couldn't fix. When you watch the right channels you can become very knowledgeable and your channel proves that. Well done!

[@kyhomegarage3430]

johnaclark1 thank you my friend. KZbin has unlimited source of knowledge. I wouldn’t be able to fix anything more than tie rod ends but thanks to KZbin automotive family sky is limit how much we can achieve. I am so glad that I am not the only one DIY who can use professional diagnostic equipment. Keep up good work my friend.😁😁👍

[@johnaclark1]

@@kyhomegarage3430 You are correct! The key to KZbin is watching the right channels. In no particular order, ScannerDanner (premium & free), New Level Auto, South Main Auto, Pine Hollow Auto Diagnostics, as well as your channel are included in those channels.

[@dave3390]

Yes @@johnaclark1 they do work adequately. I purchased the ebay transducers and cable for my vantage pro and had success at least with the ones I purchased.

[@jgeorges3061]

Ramon, awesome you impress me every time i watch ur new video always good info and new things to learn thank you and cheeeeeers.

[@kyhomegarage3430]

j georges thank you my friend. I am glad you enjoyed this video. Cheers

[@juergenscholl2843]

Ramon , as always thanks go out to you. I got one question about the fluke sensor: Are the newer versions of this sensor still working properly? I was told by various sources that fluke a couple of years ago changed the internal design/digital signal processing and the result is a too low resolution, chopped signal. I'd then suppose your PV 350 is at least 3 years old because of the accurate signal. Thanks again for your time and dedication.

[@kyhomegarage3430]

juergen scholl I didn’t know that. My unit is made in USA and its probably 4-5 years old. It would be shame if Fluke changed design on this tool. I will do some more research. Thank you my friend. 👍

[@MasterChief-sl9ro]

They have not changed the design for over 25 years. So you were told wrong.

[@therealspixycat]

You could swap both transducers or did you have both transducers on the same cylinder?

[@Caradonia]

Hi, I have the PV350 but can't find a way of connecting it to the car. I have the WPS500 hose that goes in the cylinder, but what's the part that connects the PV350 to that?

[@MasterChief-sl9ro]

You just need an adapter that threads into the Connector that the Fluke comes with. Just a normal shop air hose connector for the PICO hose..

[@stevepark5504]

A transducer training course by John Thorton , suggests using the Kpa setting. One PSI = 6.9Kpa so setting the unit to Kpa gives 7 times the resolution of the PSI setting. Seven data points per PSI. I mounted a 9v battery holder to the outside of my PV350's case. I like to take the battery out when it's not in use. The external holder allows me to do it without fussing with that tiny screw.

[@kyhomegarage3430]

steve park that makes perfect sense. I was thinking abut that. I think I will make look up table on my picoscope to make custom probe that I can use Kpa setting and pico will do conversion to Psi for me. Thank you for sharing 👍👍

[@mitzaelwtges3394]

Hello, I really liked your video. I have seen on some sites comments that apparently some pv350s (those of newer manufacture) do not work the same, that is, they do not give a good signal for the oscilloscope. Could you contribute any comments regarding this topic? Thanks

[@kyhomegarage3430]

Yes. Look for one that is made in USA 👍

[@faustogonzalez8397]

Great video , thanks so much !!

[@stephenmarshall5302]

hi Ramone, can I ask what screen recording software do you use? I enjoyed the video also

[@weldingjunkie]

gotta love the WPS this was a good video i came back to watch it again.

[@kellyr9388]

Please do the test on the verus as well. Regards

[@kyhomegarage3430]

Kelly R will do it soon👍

[@faruksabag6567]

Could you tell me how you customized the pv350 on the scope?

[@kyhomegarage3430]

Faruk Sabag look for video on my channel how to customize picoscope.👍

[@faruksabag6567]

@@kyhomegarage3430 I saw the video, does it customize the same as the 500 psi sensor ?

[@hightttech]

Excellent comparison.

[@kyhomegarage3430]

Thank you my friend.👍😊

[@burtpilon1735]

Great comparison of the 2 thx 👍🏻

[@kyhomegarage3430]

Burt Pilon thank you I am glad you enjoyed this video sir. 👍

[@burtpilon1735]

Have you ever used the snap on brand I kinda thinking about getting it but I’m doing as much research as I can before hand. You put a lot of time in your video and this is the perfect time for me to say thank you 👍🏻

[@kyhomegarage3430]

Burt Pilon I have not. Fluke is easier to use because you can use it any scope. It has it’s own power supply.👍

[@stephanevaucelles6378]

thanks for video

[@sterline80]

I had a fluke and it was so insanely noisy that it was borderline unusable. I got the pico and love it.

[@haywardsautomotive6156]

Great video Ramon...nice comparison!

[@kyhomegarage3430]

Hayward's Automotive thank you my friend. Cheers 👍👍

[@theGADGETSplaylist]

Lots going on here. So as not to have one lengthy comment, I'll address them 1 by 1 below:

[@theGADGETSplaylist]

The 8bit vs 12bit was directed at me, Ramon. That's OK. But you are enjoying 12bit vertical resolution with your high end PICO. Your waveforms would look very different, quality wise at 8 bit. Not that any of this would solve the accuracy problems you're experiencing.

[@theGADGETSplaylist]

Those inexpensive pressure sensors have a response time of

[@theGADGETSplaylist]

You selected 500 PSI Then, told us you meant 300 PSI But, ultimately went with 100 PSI. At least it seems to be the case.

[@theGADGETSplaylist]

It could be the pressure sensor is defective. But I smell a probe calibration mistake. I think the multiplier is wrong causing overshoot not only on the minimums but also the maximums on the compression towers. Boyle's Law applies to this type of work. Use the pressure and volume at the start of the compression stroke and the volume @ TDC (including the volume of the test hose) and calculate what the final pressure should be. The answer will be about half of what your waveform scale is displaying. Goes for the WPS500 and the FLUKE. They don't obey Boyle's Law either, though not as bad as your "calibrated" cheap sensor.

[@theGADGETSplaylist]

And finally, Ramon...we're all having fun here. You, me and our followers all like this stuff. There's a lot to it and it's all very interesting.

[@rrmech11]

Thanks for taking your time for showing. Where did you get your knowledge? Me myself was trained by one of the best. His name is John Thornton. Once I see this topic on KZbin I give props to him. He has a book for sale on Aeswave. It's Ass Kicking. Cheers

[@NewLevelAuto]

Ramon is the king of research! I love that this is not his career yet he invests so much of himself in becoming so versatile. I am proud to know him

[@kyhomegarage3430]

Richard Gill I am 100% KZbin certified. I’ve been in medical field for last 20 years working as OR technician. We use similar tools only difference is it must be sterile LOL. Very rewarding occupation. Most of my week I spend working with orthopedic surgeons putting broken bones together. So we use power tools, drills, screwdrivers ,hammers plates, screws etc. And than I come home and work in my home garage. Awesome 👍👍

[@dave3390]

AVI (auto video) training makes a training course and booklet that covers that and is hosted by John Thorton.

[@theGADGETSplaylist]

Not only is a non-defective, properly calibrated $12 generic pressure sensor adequate, it is better than the WPS500 at 100x the cost. The generic sensor will adhere to Boyle's Law. The WPS500 will violate it. Step on and step off and back on a bathroom scale rapidly. The dial will swing wildly past your weight and again past zero. The WPS500 exhibits this effect. It isn't properly dampened. It overshoots on its way up and again on its way down. The reported values are false. They lead to the false consensus that running compression PSI is 50% of WOT crank compression PSI. As part of my reply to Keith's negative comment on my channel, I stated my intent to make a video challenging that consensus. The lowly generic pressure sensor is better dampened. The readings will conform to Boyle. The compression towers will peak closer to 30% of WOT crank pressure.

[@kyhomegarage3430]

logical canuck sorry I didn’t see his comment. I have to look it up. Thank you

[@theGADGETSplaylist]

@@kyhomegarage3430 - posted on this video: kzbin.info/www/bejne/oYXYfqmqpbSai5Y&lc=z22eevnqgovds5eqf04t1aokgbj1jfxu002vmj3gpur4rk0h00410

[@DmitriyL_Arithmechanics]

@@theGADGETSplaylist Do you have evidence (links to waveforms, experiment reports) to back up such serious allegations regarding this particular brand of sensor? Also, how exactly do you apply Boyle's law to rapidly expanding/compressing gas?

[@theGADGETSplaylist]

@@DmitriyL_Arithmechanics - On what basis do you think "rapidly expanding/compressing gas" negates Boyle's Law? In a WOT crank compression test, all of these sensors, including the $15 generic sensor and mechanical gauge agree with each other. And all follow Boyle. On a running compression test, they diverge. Only the generic sensor and mechanical gauge (as best as it can be read) remain consistent with Boyle. I was hoping to do a video on the subject later. I'm in the middle of a house renovation here. I'll get to it when I can.

[@theGADGETSplaylist]

@@DmitriyL_Arithmechanics - and I've just discovered your channel. Interesting stuff, I subbed and will give it a good look...again, when this reno project is behind me:)

[@kirkabrahamson1148]

Great comparison Ramone. You are obviously joining the ranks of the super tubers (Keith Eric O Ivan and SD).........1 thumbs down.

[@kyhomegarage3430]

Kirk Abrahamson thank you my friend. I am nowhere near to those guys but I do my best to keep my channel going. Cheers 👍

[@NewLevelAuto]

This should be interesting

[@rrmech11]

Yes it is.

[@kyhomegarage3430]

New Level Auto thank you friends it’s always good to hear from you guys. Cheers 👍👍

[@MasterChief-sl9ro]

$500.00 vs $750.00.. The Fluke is the winner.. As I used a PV-350 for 25 years. It still works even after dropping it.. Just have them calibrated every 3 years.

[@kyhomegarage3430]

Master Chief 00117 my Fluke works great no complaints so far. I got mine used on eBay. Money well spent. Cheers my friend 👍👍

[@scientist100]

@@kyhomegarage3430 I just bought the PV500 and I hope that given that its a Fluke, it will be reliable as opposed to the one offered on eBay in a black box with yellow letters, that thing broke down on me on the first use, I bought a pressure sensor to use with it and it was much better. I got ripped off $200 bucks, the vacuum one doesn't even work when I tried using it in the intake.

[@scientist100]

@@kyhomegarage3430 I noticed there is no change in mine (no pulse), did I get a bad one?

[@kyhomegarage3430]

scientist100 did you check battery. With unit off you should read 0.5V

[@scientist100]

@@kyhomegarage3430 it just stays solid when it changes. Doesn't pulsate like it should. I only checked the vacuum though so it may not be sensitive enough or my unit is the new version that doesnt report like it should under an oscilloscope.

[@daviddeel4659]

Hey Ramon , I'm stuck on a vtec job , do you have an email or contact info please ?? Merry Christmas

[@kyhomegarage3430]

send my your contact info to my email [e-mail]. Thank you.

[@brianraglandsr.2349]

Thanks for sharing.

[@DK-vx1zc]

Very interesting. Thanks for sharing

[@kyhomegarage3430]

D K thank you my friend. I am glad you enjoyed this video. Cheers 👍

[@JoelAutomotiveInaction]

good stuffs

[@kyhomegarage3430]

Joel Automotive In action Thank you my friend. Cheers 👍