B
Error messages
The MEphisto Scope does a self-test after switching on. When all
components have passed the test, the device goes into standby
mode. If it is connected to a PC and initialized, then both LEDs are
constantly lit in this state.
The model UM203 may also be operated without a PC, however an
SD card is needed. As long as the device is waiting for a new SD
card, both LEDs flash in quick succession and then remain dark for
a short time. This is repeated until a card is identified. The card is
subjected to some tests that convey their errors through POST
codes.
In case of an error, the status LEDs flash as follows: The left LED
flashes briefly. The right LED then flashes four times in succession
in different durations. The assignment of the blink sequence to the
detected error is listed in the table.
Nr. 1 2 3 4 Error
Description
1
- GPIO-error
The module that processes digital
signals is defective. The signals on
the 26-pin connector can no longer
be processed. Please send the de-
vice to
Meilhaus Electronic where it will be
repaired.
2
-
RAM-error
The module that caches measure-
ment data is defective.
Please send the device to
Meilhaus Electronic where it will be
repaired.
3
- - Hardware-
Version could
not be deter-
mined
The device could not determine its
type (version 1.0, version 1.1 or
version 1.1 with SD-card option).
There might be a fatal error in sev-
eral components and in the
processor.
Please send the device to
Meilhaus Electronic where it will be
repaired.
4
-
RTC not reliable The configuration memory and the
clock do not provide reliable
Dates. This may occur during long
