MI 3321 MultiservicerXA
Technical specifications
25
10.0
… 99.9
0.1
loop resistance
measurement
100
… 999
1
1.00k
… 9.99k
10
10.0k
… 23.0k
100
The accuracy is valid if mains voltage is stable during the measurement.
Test current (at 230 V): ............. 6.5 A (10 ms)
Nominal voltage range: ............. 30 V
… 500 V (45 Hz … 65 Hz)
Pass limits: ............................... Appendix C
Test terminals:
Zs
TP1 test socket
3.14.2 Zs(rcd), Rs(rcd)
Fault loop impedance
Measuring range according to EN 61557-3 is 0.46
… 9.99 k
.
Measuring range (
)
Resolution (
)
Accuracy
0.00
… 9.99
0.01
(5 % of r 10 digits)
10.0
… 99.9
0.1
100
… 1999
1
10 % of reading
Accuracy may be impaired in case of heavy noise on mains voltage
Prospective fault current
(calculated value)*
Measuring range (A)
Resolution (A)
Accuracy
0.00
… 9.99
0.01
Consider accuracy of fault loop
resistance measurement
10.0
… 99.9
0.1
100
… 999
1
1.00k
… 9.99k
10
10.0k
… 23.0k
100
* in Zs(rcd) only
Nominal voltage range: ............. 50 V
… 500 V (45 Hz … 65 Hz)
No trip out of RCD.
Pass limits: ............................... Appendix C
Test terminals:
Zs(rcd), Rs(rcd)
TP1 test socket
3.14.3 High precision fault loop impedance Z m
L-Pe
Measuring range according to EN 61557-3: 12.0 m
… 1.999
Measuring range (m
)
Resolution (m
)
Accuracy
0.0
… 199.9
0.1
(5 % + 3 m
)
200
… 1999
1
Nominal voltage range: ................... 100 V
… 440 V
Nominal frequency: ......................... 50 Hz
