cwinkler2 wrote on Jan 10
th, 2018 at 8:24pm:
am i not going to get good results with these?
That is correct. We tested many brands.. Snap-On, ATS, etc, as well as no name transducers. They all had the same issue:
They are not accurate under dynamic conditions such as running compression. Values are accurate during static pressure testing or when pressures change slowly. But values skew quite a bit when pressures change rapidly. We saw things like negative 30 pounds. Of course, there is no such thing... You will get a decent 'looking' waveform with the Snap-On but the devil is in the details.
The old design PV350 didn't have this problem but I understand the new one is not good (we have not tested one). So, I would have to say that I know of no other transducer currently available that is accurate other than the WPS.
Even if one of these was accurate, none of them allow you to burp the air out of the line. Therefore you always have air trapped in there that affects your readings when measuring liquid pressures.
Keep in mind that, as a Picogroup member, we will do our best to price match on anything Pico automotive for you.