Lumel NA6, User Manual, Page: 21 / 77

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The appearance of the following symbols and inscriptions on the
display means:
?
It is possible to change meter parameters:
- from the meter keyboard ( p 5.1)
- through RS-485 (p.6.)
5.1. Change of the NA6 meter parameters from the keyboard
The pressure of the key during circa three seconds causes the display
of the
seC
.
Inscription alternately with the set zero value by the manufacturer. The introduction
of the correct code causes the entry into the programming mode. The fig.6
represents the transition matrix into the programming mode. One can move on
groups of main parameters eg:
Ch1 , Ch2 , bAr1 , bAr2 , Al1 , Al2 , etc, by means of
the key.
The pressure of the key on the given level, causes the entry into parameters of
this level. The moving on the given level is operated by means of the key.
In order to change the value, one must use the key. In order to escape from the
parameter change, one must press the key.
By means of the key, one can exit from the selected level and programming
matrix to the measurement.
During the meter operation in the programming mode, the measurement result is
displayed on the bargraph, excepting the function of the display test selecting.
Incorrectly introduced safety code
Exceeding of the upper measuring range or lack
of sensor
Exceeding of the lower measuring range or
short-circuited sensor
Error of the conductor resistance compensation.
No connected conductor or damaged conductor.
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