Red wire on EMS Pressure sensors

[Elmer]

Hi,
I'm trying to figure out if I need to use pin 18 (EMS-37, 5 volts) for both red wires on my fuel and oil pressure sensors.
Along the same line. Are all the other red pins 12 volt? It's kinda hard for me to find out what the voltage is on all the red pins.
Thanks for any help

 

[dynonsupport]

Assuming you're talking about and EMS-D10, D120, or FlightDEK-D180 here, and that you have the newer Kavlico sensors (the packages are marked as such, and there's an instruction sheet packed with each sensor): Yes, the red wires of both the oil and fuel pressure sensors need to get 5V power from pin 18.

As for power - use a multimeter to make certain which red wire is which (check for continuity between the wire end and the appropriate connector pin). There's a table in each manual that details the EMS D37 connector, but pin 18 is 5V (for Kavlico pressure sensors, manifold pressure, and others) , pin 15 is 12V (for the fuel flow sensor). Any sensor that you would connect to it has specific instructions to use that pin, though.

 

[Elmer]

Thanks Dynon for the help,
Yes, I do have the EMS D10, D180 harness and the fuel and oil sensors are the new Kavlico sensors.
You stated that (any sensors that you would connect to it has specific instructions to use that pin.) I have three and maybe four sensors that will be connecting to pin 18. Can you tell me what the special instructions are to connect those three sensors to pin 18?
Thanks, Elmer

 

[dynonsupport]

Nothing special: Just split the wire coming off pin 18 and connect it to all of the wires that need power from it.