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ANALYZER OF THE QUALITY OF ELECTRIC POWER SUPPLY
QNA-303 --
Page
14
5.4.- Connection diagrams of the QNA-303 analyzer
5.4.1.- Direct connection
5.4.1.1.- Connection diagram for L.V. 4-wire power systems
Voltage connection terminal U (L1, L2, L3)
QNA Pin
Description
1
Voltage
U
L1
2
Voltage
U
L3
3
Voltage
U
L2
4
No used
5
Neutral
6
No used
Power supply connection terminal
QNA Pin
Description
1
Supply
U
AL1
2
Supply U
AL2
3
Earthing terminal
4
No used
L1
L2
L3
N
Voltage connection terminal U (L1, L2, L3)
QNA Pin
Description
1
Voltage
U
L1
2
Voltage
U
L3
3
Voltage
U
L2
4
No used
5
Neutral
6
No used
1
1
2
2
3
3
4
4
5
6
7
Power supply
0 - 230 - 400V
Power supply connection terminal
QNA Pin
Description
1
Supply
U
AL1
2
Supply U
AL2
3
Earthing terminal
4
No used
QNA-303
