FAA Approved Installation Manual for the
Report No 908
EDM-900 and EDM-930
Page 16 of 56 Rev I
Primary Engine Data Management System
Date 1-18-2013
20.1
Alternate method of installation keeping the original sensors in the aircraft operational
The oil pressure sensor should tee off the oil pressure line feeding the original aircraft gauge or the oil pressure
switch is removed and the sender is installed in that location.
21. Fuel Pressure Sensor Installation
Use the J5 connector harness 790719-X labeled FUELP.
Mount the pressure sensor to the pressure line using a flexible hose and fittings (not supplied) as depicted in the
drawing below. Use Aluminum Clamps MS21919WDG25, or WDG14 to mount the pressure sensor to engine
mount structure or firewall. Do not mount the sensor’s directly to the engine. Connect the other end of the hose to
the existing pressure line. Later, you will connect the pressure sensor to the four pressure sensor wires through the
supplied 4-pin connector. Part No. 790775() required for Carburetor engines OR Transducer PN 3060-17 for
injected engines. PN 3060-17 is a resistive and requires two wires with no polarity.
For Sensym sensor (shown below), crimp the four pins of the female Molex connector to the harness, matching the
wire colors. Secure to firewall with Aluminum Clamp MS21919 WDG14. For injected engines use clamp
MS21919WDG 25.
i2S
sender
AEROQUIP 303 Flex hose
AN-910-1D
1/8 NPT coupling
AN-816-4D
1/8 NPT to flared
MIL-H-8794 hose
MS-24587 fitting (AEROQUIP 491, 2 req'd)
to engine
fitting
DO NOT MOUNT SENSOR DIRECTLY TO ENGINE
Honeywell
PN 790775
Connect to P5 connector
harness 790719-X
1
FP GND BLK
FP SIG+ WHT
FP PWR RED
FP SIG- GRN