METREL MI 3321 MultiservicerXA, Instruction Manual

Page: 23 / 194

MI 3321 MultiservicerXA Technical specifications
23
-0.1

I

/ +0; I

= 0.5

I

N
Test current shape: ................... Sine-wave (AC), pulsed (A), smooth DC (B)*
DC offset for pulsed current: ..... 6 mA (typical)
RCD type: ................................. G (non-delayed), S (time-delayed)
Test current starting polarity: .... (+) or (-)
Voltage range: .......................... 40 V
… 264 V (45 Hz … 65 Hz)
Test terminals:
RCD testing
TP1 test socket
RCD test current selection (r.m.s. value calculated to 20 ms) according to EN 61009-1:
I

N × 1/2
I

N × 1
I

N × 2
I

N × 5
RCD I

I

N (mA) AC A
B* AC A B* AC A B AC A B* AC A B*
10 5 3.5 5 10 20 20 20 40 40 50 100 100
  
30 15 10.5 15 30 42 60 60 84 120 150 212 300
  
100 50 35 50 100 141 200 200 282 400 500 707 1000
  
300 150 105 150 300 424 600 600 848 n.a. 1500 n.a. n.a.
  
500 250 175 250 500 707 1000 1000 1410 n.a. 2500 n.a. n.a.
  
1000 500 350 500 1000 1410 n.a. 2000 n.a. n.a. n.a. n.a. n.a.
 
n.a.
n.a. ..................................................... not applicable
AC type .............................................. sine wave test current
A type…… ......................................... pulsed current
B type* ............................................... smooth DC current
Note:
All data (marked with “*”) regarding B type RCDs are valid for instrument HW version
3.0 and higher only.
3.13.2 Contact voltage RCD-Uc
Measuring range according to EN 61557-6 is 7.5 V
… 62.0 V for limit contact voltage
50 V.
Range
Resolution Accuracy
0.0 V
… 19.9 V
0.1 V
(-
0 % / +15 %) of reading ± 10 digits
20.0 V
… 99.9 V
(-0 % / +15 %) of reading
The accuracy is valid if mains voltage is stable during the measurement and PE
terminal is free of interfering voltages.
Test current: ............................. max. 0.5

I

N
Limit contact voltage: ................ 50 V
Specified accuracy is valid for complete operating range.
3.13.3 Trip-out time
Complete measurement range corresponds to EN 61557-6 requirements.
Maximum measuring times set according to selected reference for RCD testing.
Range
Resolution Accuracy
0 ms
… 40 ms
1 ms

1 ms