Metrix MX 435D

Chapter II
44 Digital Earth Tester
4.1.4. Isolation (IEC 61557-2, 1997)
Range
0.1 ... 0.5 ... 200.0 M:
Resolution
100 k:
Accuracy
from 0.1 M: to 0.5 M: : - ± 1.5 D (out of IEC 61557)
from 0.5 M: to 0.6 M: : - ± 1.5 D
from 0.7 M: to 0.8 M: : 3 % ± 2.0 D
from 0.9 M: to 10.0 M: : 3 % ± 2.5 D
from 10.1 M: to 200 M: : 3 % ± 3.0 D
Measuring current
t
1.0 mADC for R
d
500 k:
Max. direct current
d
4.0 mADC
Nominal voltage
500 V
DC
Voltage at open circuit
500 V
d
V
d
550 VDC
Protection
480 Vrms
4.1.5. Current (with MN73 clamp)
with MN73 clamp
Voltage input of
tester alone
Rating
0 to 200 A 0 to 2000 mA 0 to 2000 mV
Resolution
100 mA 1 mA 1 mV
Accuracy
± 2 () % ± 7 D ± 1 () % ± 7 D
± 1 % ± 5 D
Input resistance
1 M: 1 M: 1 M:
Protection
480 Vrms 480 Vrms 480 Vrms
() typical
The DC component is cut by a capacitor at the tester input.
4.1.6. Voltage
Rating
0 - 600 V
Resolution
1 V
Accuracy
± 1,5 % ± 5 D
Input impedance
1 M:
Protection
> 480 Vrms
The DC component is cut by a capacitor at the tester input.
4.1.7. RCD test
4.1.7.1. Range for use
Installation voltage
190 to 290 V
Frequency
45 to 65 Hz
Max. internal temperature
80qC