EN
13
3.1. Display Description
3. SERVICE
Alarm
indexes
Highlighted
unit
Measured
value
Indexes of actual value
displaying
Fig. 7. Frontal panel
3.2. Messages after the supply connection
After connecting the supply, the meter displays the meter name
and the letter marking the execution:
U
– voltage measurement,
I
– current measurement,
F
– frequency measurement,
S
– custom-made
execution. Next, the program version is displayed in the shape r x.xx –
where x.xx is the number of the actual program version or the number
of the custom-made execution.
Till the time to obtain the required number of correct measurements
(acc. to the table 1- see full version of service manual at www.lumel.
com.pl), the actual value from the measurement 1 is displayed, signa-
led by the highlighted index of the actual value.
In case of an error occurrence or an overflow of the range value
on the display, a message described in the section 6 (concerns N20Z
service manual) or in the section 7 (concerns N20ZPLUS service
manual), will be displayed.
Overflows of the measuring range are additionally signaled by the actual
value signal index.
