Seven-Segment Display
F-FEM-DAC
F-FEM-DACF-FEM-DAC
F-FEM-DAC
Operating Manual
33
4.3 Seven-Segment Display
The seven-segment display shows the F-FEM number, according to
parameterization.
If errors occur, error numbers will be displayed (e.g. E1, E2, ...).
The table below gives an overview of the numbers displayed:
4.4 Aging and Calibration Intervals
4.4.1 General
Due to the use of most up-to-date technologies, the F-FEM-DAC
reaches accuracy levels which in the past were reserved to laboratory
equipment. These accuracy levels can thus only be checked using
laboratory equipment that has an accuracy that is at least four times
higher. The measurement and reference equipment for the calibration
should have an accuracy that is four times higher than that of the
instrument to be calibrated. The ambience conditions during the
calibration also play a decisive role. The best place for a reliable
calibration is in the laboratory. In the test cell only checks can be
performed which ensure the proper overall measurement quality.
Display Function Description, Remedy
. . Hardware reset Is shown briefly when the module is started (for approx. 2 - 3 sec). Inter-
mittently flashing dots indicate a hardware fault. Please send the device
in for repair!
Bl Boot-Load A new on-board software is being transferred.
Fl Flash The new on-board software is being stored in the permanent memory
(Flash EPROM). This takes approx. 15 seconds. During this time, the
power supply must not be interrupted, as otherwise an incomplete
system would be created which cannot be rebooted.
E0-E9 Error The meaning depends on the software version used.
There may also be other characters that are displayed, depending on
the on-board software used.
Table 5 Explanation of error numbers
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