J.P. Instruments EDM 760 Pilots Guide - Manual (Page 52)

tanks in the fuel flow units selected. If you have tank tabs and sometimes
fill only to the tabs, set the auxiliary tank capacity to the difference
between full tank capacity and tab capacity. The EDM-760 does not
differentiate fuel flow between the main and auxiliary tanks; it tracks only
total fuel in the aircraft.
Low Time Alarm Limit
Select the value of the time remaining, in minutes, that triggers the alarm.
Time remaining is calculated at the current fuel flow rate.
Low Fuel Alarm Limit
Select the value of the fuel remaining, in the selected fuel flow units, that
triggers the alarm. Fuel remaining is calculated at the current fuel flow
rate.
Carburetor?
Different response filters are used depending on whether your engines are
carbureted or fuel injected. The filter for a carbureted engine has a slower
response time to reduce sudden fluctuations in readings.
Fuel Flow Option—Formats, Diagnostics
Navigation Data Formats
Output of GPS; input to EDM-760. The EDM-760 automatically
configures itself for one of three industry standard data formats:
Format Baud rate
NMEA-183
(Marine
Navigation Data
Format) 4,800 This is the format for most handheld
GPS receivers. Loran must have
sentences RMA & RMB. GPS must
have sentences RMB & RMC.
Aviation Data
Format 9,600 “Output sentence type 1” Req’d
sentences: A, B, C, D, E, I and L first
char id byte. Sentence terminator
either <CR><LF> or <CR>.
Northstar
(Northstar binary) 1,200 M1 setup select “NO EXTENDED”,
“NAV ONLY”
Page 48 Engine Data Management