Status Leds; Downloading Files; Re-Charging Batteries; Sd Card Version - EW Avionics EW microRecorder Instructions

Status LEDs

On battery operation; for 30 secs after STARTUP, the red LED shows battery status-
4 or continuous Flashes indicate
3 Flashes indicate
2 Flashes indicate
1 Flash indicates
The status can be repeated at any time by pressing the switch.
The green LED is constant whilst searching for satellites. A flashing green LED indicates a
GPSGPS fix. After a few minutes of operation the flashing period should drop from 1 second to
the update rate. If this does not happen it indicates that the GPSGPS reception is weak and the
microRecorder has not entered power saving.
Check that the microRecorder has a fix before each flight. If for some reason the
microRecorder does not have a fix, it will still act as a barograph and record the pressure.
The microRecorder will not record whilst connected to the USB.

Downloading Files

On connecting the microRecorder to the USB, it will automatically be recognised as a removable
drive named 'EW_IGC LOGS', (On Windows2000 or later). Files can be opened or copied from
the microRecorder to your computer. Files can only be deleted using the EW-User.txt.
The oldest file will automatically be deleted by the microRecorder when the memory is full. At a
10 second update 300 hours of flying may be recorded. It is not possible to delete individual files,
but all files, (except the EW-User.txt) can be deleted see EW-User.txt.
Memory is maintained independently from the batteries.

Re-charging batteries-

The microRecorder may be charged either using an EW microCharger or by connecting to the
USB on your computer.
In either case the microRecorder should be switched off and not connected to an antenna. The
computer must be running and not be in a sleep mode. Ensure that the red LED remains on,
indicating charging. It can take up to 12 hours to fully charge the batteries. After even a brief
charge, the battery status LED will indicate an 'optimistic' charge state until the unit has run for a
considerable time.
Batteries should not be re-charged if the unit is below 0 deg C.
The batteries do self discharge over a period of time and should be re-charged every 3 months, if
this is not carried out the life of the internal lithium battery which maintains the security keys,
will be reduced.
To minimise the drain on the glider battery, charging with the antenna connected will only partly
re-charge the microRecorder battery

SD Card Version

SD Card.
On startup the microRecorder looks for a EWUSER.txt on the SD flash card. If one is found it
will be used, otherwise the version in the memory will be used. If a declaration is uploaded
serially from software packages such as SeeYou Mobile or ConnectMe, then a copy of w the
EWUSER.txt will be put on the SD card, overwriting any copy present. This will mean that any
subsequent start of the microRecorder will contain the new declaration.
Ensure that the unit is switched off before removing the card, otherwise the file will not have
been copied to the card.
When the unit is switched off either all the .igc files, or the last file is copied from the
microRecorder memory to the flash card, depending on the option set in EWUSER.txt.

FAI Approval-

80-100 % charge.
50-80 % charge
25-50 % charge.
0-25 % charge.