Rcd Selected; Line Impedance And Prospective Short-Circuit Current - METREL MI 3122 Instruction Manual

MI 3122 Smartec Z Line-Loop / RCD
Prospective fault current (calculated value)
Measuring range (A)
0.00  9.99
10.0  99.9
100  999
1.00k  9.99k
10.0k  23.0k
The accuracy is valid if mains voltage is stabile during the measurement.
Test current (at 230 V) ...................... 6.5 A (10 ms)
Nominal voltage range ...................... 30 V  500 V (45 Hz  65 Hz)

8.2.2 RCD selected

Fault loop impedance
Measuring range according to EN61557 is 0.46   9.99 k  .
Measuring range (  )
0.00  9.99
10.0  99.9
100  999
1.00k  9.99k
Accuracy may be impaired in case of heavy noise on mains voltage
Prospective fault current (calculated value)
Measuring range (A)
0.00  9.99
10.0  99.9
100  999
1.00k  9.99k
10.0k  23.0k
Nominal voltage range ...................... 30 V  500 V (45 Hz  65 Hz)
No trip out of RCD.

8.3 Line impedance and prospective short-circuit current

Line impedance
Measuring range according to EN61557 is 0.25   9.99k  .
Measuring range (  )
0.00  9.99
10.0  99.9
100  999
1.00k  9.99k
Resolution (A)
0.01
0.1
1
10
100
Resolution (  )
0.01
0.1
1
10
Resolution (A)
0.01
0.1
1
10
100
Resolution (  )
0.01
0.1
1
10
48
Technical specifications
Accuracy
Consider accuracy of fault
loop resistance
measurement
Accuracy
 (5 % of reading + 10 digits)
 10 % of reading
Accuracy
Consider accuracy of fault
loop resistance
measurement
Accuracy
 (5 % of reading + 5 digits)
 10 % of reading