Comparing EDM 790 And EDM 900 Systems

This article helps you compare the two EDM’s and select the one that fits your requirements and your budget. Both these aircraft engine data monitoring systems are manufactured by J.P. Instruments.

The EDM900 Primary system allows you to remove your old steam gauge instruments and move up to the most advanced and accurate piston engine-monitoring instrument on the market. Designed to be used both vertical or horizontally, the rear processor is offset to give almost unlimited install choices, and features a long list of user options.

EDM 900

(Usually between $3,000 and $5,000)

Features:

2-4 piston Aircraft Engine Monitoring

Includes Pre-wired Harness

Includes CHT Probes & EGT Probes and Harness

Includes Oil Pressure Transducer and Harness

Includes OT Transducer and Harness

Includes Fuel Flow Transducer and Harness

Includes OAT Probe and Harness

Includes RPM Sensor and Harness

Includes Manifold Pressure Transducer and Harness

Includes Shunt 100 amp and Harness

Includes Volts V1 and Harness

Features Remote Access Display 8 Alpha Numeric Characters. Backup display.

Includes Plotting Software EZTrends ©

Capable of EGT Differential Span Hottest to Coolest

Capable of CHT Differential Span Hottest to Coolest

Shock Cooling on all cylinders

Accurate Lean and over lean Horsepower

GPS Interface to any GPS even hand-held

Fuel Efficiency, Fuel Used for the Trip

Fuel Used Since Fill up, Time to Empty

Distance to Empty

Fuel required to next Way Point or destination

Fuel Reserve at way point or destination

Flight Timer

Tach Timer, Engine Hours

Date, Zulu Time

The Engine Data Management 900 for aircraft has 4 operating modes; automatic, manual, Program and LeanFind.

More information here:

https://www.jpinstruments.com/shop/edm-900-2/

The Engine Data Management 790 system is the most advanced and accurate twin piston engine-monitoring instrument on the market.Using the latest microprocessor technology, the EDM will monitor up to twenty-four critical parameters in your engine, four times a second, with a linearized thermocouple accuracy of better than 0.1 percent or 2 F° which has been verified and tested by the FAA.

EDM 790

(From $7,055.00 to $8,255.00)

Features:

EGT & CHT 4 or 6 probes

Monitor and display of Volts

Monitor Shock cooling

Span (highest to lowest EGT)

EGT Normalize mode

LOP/ROP function

Power connector

All required Harness 20 ft

EZTrends Graphing Software free

Serial Data recording -25 hours

3 year Warranty

Full Instrument: Width 4.81 Height: 3.47 Depth: 3.56

Insert Size 3-1/8 in panel mount 3.56 deep. Width Above Panel.80 Weight: 1 LB.

Optional Functions include:

Fuel Flow,

Oil Temperature 1 & 2,

Turbine Inlet 2 (TIT-2),

Outside Air (OAT)

Carburettor Temperature (CRB).

Fuel Efficiency, Fuel Used for the Trip

Fuel Used Since Fill up, Time to Empty

Distance to Empty

GPS Interface to any GPS even hand-held

Fuel required to next Way Point or destination

Fuel Reserve at way point or destination

Data Port for downloading of data.

FAA approved graphic engine monitor with a full fuel flow system.

Extremely accurate temperature detection; ONE degree (even for EGT).

Paired with JPI’s "grounded" fast response probes.

Monitors the Twin Engine Aircraft Fuel Flow Indicator every 2 to 255 seconds.

More information here:

https://www.jpinstruments.com/shop/edm-790/

J.P.Instruments was founded in 1986 in Huntington Beach, California, Usa. J.P. Instruments is leader in aircraft engine data management systems and has added a whole line of reliable and cost effective aircraft instrumentation to its name.