DIY Pressure Transducer

I calibrated it with a fluke pressure tester.

Accuracy is good I believe the transducer output signal is maybe too slow as previously discussed.


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Also verified the 5v output from the dc converter is good( checked with the scope)


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Pressure Transducer Sender Sensor... www.amazon.com/dp/B0748C27LN?ref=yo_pop_ma_swf


This what I bought


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Sooknanan wrote: Pressure Transducer Sender Sensor... www.amazon.com/dp/B0748C27LN?ref=yo_pop_ma_swf


This what I bought


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Those are the same ones that I got. I've replaced my homemade transducer with a WPS500 kit. Very happy with it

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Your waveform had the same issues as mine.


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Just an update with this PT dilemma. I bought the transducer posted on page 1 from ebay. It was worst than my original, it couldn't read anything under -3 psi so basically there was a flat line at the bottom of the waveform. The problem with the pic I posted before was, I didn't set the look up table to read vacuum pressures. I messaged a youtuber about the transducer he used and he said most new transducers having this same issue. You would have had a better chance of a quality one a few years ago.

So I tried a 0-100psi on running compression to compare to the 0-300 and it was similar.


After some filtering with the 0-300psi I got this. I will settle with this for now since the waveform is still readable.

why does the snap on model not have the have the 9volt power and step down converter?

store.snapon.com/Pressure-Transducers-Ki...500-PSI-P636904.aspx

and could we use one of these to use multiple tranducers at one time:?

store.snapon.com/Pressure-Transducers-Ki...Adaptor-P637559.aspx

and does anyone know what is inside this unit?

store.snapon.com/Pressure-Transducers-Ki...-Ultra--P737766.aspx

I guess for my Snapon Modis I will have to build this:

Description

• Adapts standard meter jacks to EEPV302AL, EEPV302AT and EEPV302AH pressure transducers (not included)

• Provides connection of transducer plug to standard meter jacks, and provides power to the pressure transducers

• Use up to two transducers simultaneously

• View results on VERDICT®/MODIS® Ultra/MODIS® Edge/VANTAGE® Ultra/M2 Meter


I am too cheap to buy one LOL Will have to sourse everything. see attached image

So this reads vacuum as well 29 in-hg?