28?
Anyway, thank you all for your replies. Sounds like a 150 psi
sensor will be the safest.
I have no plans to tear down the supposedly brand new Renesis, so
for now no modifications.
Thinking about a before cooler pressure sensor too. I suppose the
only (easy) option is to drill and tap the oil metering pump
supply hole (which I've already plugged)?
I would like to also have a before oil cooler temperature sensor.
I guess I need to find a spot in the oil pan?
I suppose a 30 psi sensor is adequate for water pressure (assuming
I don't go with Evans non-pressurized system)?
Trying to source sensors, I looked in the places I had purchased
them decades ago (Newark, DigiKey, Allied) and was dismayed at the
availability and prices. In my original RV-3 I had used the solid
state MPX-5999 with barb from NXP USA.
A Google search finally lead me to a posting which led me to
Aircraft Spruce and a "Swift" pressure sensor. That led me to eBay
where there now is a wide selection of 5V (amplified) solid state
sensors with 1/8-27NPT housings.
These solid state sensors have (amplified) output voltages from
0.5 to 4.5 volts with a 5 volt supply (they even come in 12V
(10-25V) supply version for a bit more).
Yes, your engine monitor has to subtract (offset) the bottom by
0.5 volts (0 psi = 0.5 volts).
http://www.zenith.aero/forum/topics/swift-solid-state-oil-pressure-sensor
https://www.ebay.com/itm/Pressure-transducer-or-sender-Stainless-Steel-for-oil-fuel-air-water-Multichoice/272759060859?hash=item3f81b4f97b:m:mTKFrDgAsPLl-bZmKbUTKgQ
When searching note that oil pressure switches are often called
sensors too.
Finn
On 11/15/2019 7:36 AM, Bobby J. Hughes
bhughes@qnsi.net wrote: