Lumel N20 User manual

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DIGITAL PANEL METER
N20, N20PLUS
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



       

      

 

 

        




  2.
        








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Rys 1. Sposób mocowania miernika N20 i N20PLUS


Rys 2. Gabaryty miernika N20 i N20PLUS

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
Rys 7. Panel przedni N20 i N20PLUS

Wskaźniki
alarmów
Podświetlona
jednostka
Wartość
mierzona
Wskaźnik wyświetlania
wartości chwilowej

 
  
 



 

  


       
      
          
      



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
       


        
     Komunikacja  

 




Uwaga!
-











    1%
    1%
    1%
°C
m

£



> 1 M


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 °C
 °C

  
+




£










23°C
°C










Masa
 


 


pl












EN





 



 

 

           

 

         


The meter has separable strips with screw terminals which enable the
connection of external wires of 2.5 mm2. In the version for current mea-
surement, the plug enables permanent fixing to the socket by means of
screws.
One must prepare a hole of 92+0.6  45+0.6 mm in the panel which the
thickness should not exceed 6 mm. The meter must be introduced from
the panel front with disconnected supply voltage. Before the insertion into
the panel, one must check the correct placement of the seal. After the
meter insertion into the hole, fix the meter by means of the clamps (fig. 1.).

EN

Fig. 1. N20 and N20PLUS meter fi xing.
Fig. 2. N20 and N20PLUS meter overall dimensions



EN



Alarm
indexes
Highlighted
unit
Measured
value
Indexes of actual value
displaying
Fig. 7. Frontal panel

After connecting the supply, the meter displays meter name and the
letter marking the execution of the meter: U – voltage measurement,
I – current measurement, r – measurement of Pt100 temperature,
t – measurement of the temperature by thermocouples, 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, signaled
by the highlighted index of the actual value.
In case of an error occurrence or an overflow of the range value,
a message described in the section 6 (concerns N20 service manual)
or in the section 7 (concerns N20PLUS service manual) will be displayed
on the display.
Overflows of the measuring range are additionally signaled by the actual
value signal index.