J.P. Instruments EDM 760 Pilots Guide - Manual (Page 38)

Long Term Memory
The EDM-760 Long Term Memory will record and store all displayed
measurements once every six seconds (or at the programmed interval of
between 2 and 500 seconds). At a later time, transfer them to a Palm™
handheld as an intermediate courier, or laptop PC.
When you retrieve recorded data to your palmtop or laptop PC you can
choose to retrieve all the data in stored in the EDM-760, or only the new
data recorded since your last retrieval. In either case, no data in the EDM-
760 is erased. The data will be saved in the PC in a file in a compressed
format.
The amount of total data that the EDM-760 can store will vary depending
on how rapidly the measured temperatures change. The typical storage is
40 hours, but may vary depending on which options are installed. When
the memory becomes full, the oldest data will be discarded to make room
for the newest. In the LeanFind mode you may place a mark at the next
data record by tapping the
LF and STEP buttons simultaneously . You
will see the word SNAP within the next six seconds, indicating a data
record has been marked. Tap the STEP button to return to the Automatic
indexing mode. Recording begins when EGTs are greater than 500°F or
“snap” is requested.
All data are time-stamped. The EDM-760 Long Term Memory contains a
real-time clock that may be reset to local time when you initially program
your instrument. You may also program an aircraft id that will appear in
the output data file. The aircraft id can be your aircraft registration
number or your name. Initially the aircraft id is set to the EDM-760's
serial number.
You may change the recording interval from 2 to 500 seconds, even in
flight. When you change the interval in flight, the current flight file is
closed and a new flight file is created with the new recording interval.
At power on, the EDM-760 will execute its self test and then display the
date (e.g.,
I I. I2.99), the time (I3.26), the percentage of memory filled
since the last save ( FULL 24), and the Aircraft ID.
Transferring Data from the EDM-760 to a Palm Handheld
The examples shown here are specifically for the Palm™ handheld
and a PC running Windows® 98. J. P. Instruments provides an
optional cable to interface to the Palm cradle cable or travel cable.
Page 34 Engine Data Management