Megger NIM 1000, User Manual

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Technical Description
11
2.2 Technical Data
The NIM 1000 is defined by the following technical parameters:
Parameter Value
Test current
•
Range 80 A … 1000 A (adjustable)
•
Maximum current as a peak value
(I
max
depends on the network
impedance and the temperature and
is, under certain circumstances,
significantly lower than the indicated
values)
≤1000 A at 400 V
≤600 A at 230 V
≤300 A at 115 V
Input voltage
(supply voltage at the same time)
100 V ... 480 V, 50/60 Hz
(at test terminals)
100 V … 230 V, 50/60 Hz
(at Schuko socket)
Operating uncertainty B (in accordance
with IEC 61557-3)
Up to 3% ± 1 mΩ (see also Annex 1)
Measuring range 10 mΩ … 5 Ω (230 V / 400 V)
10 mΩ … 2,5 Ω (115 V)
(See also Annex 2)
Resolution
1 mΩ
Measurement category
300V CAT IV or
600V CAT IV (when using the PKC-1 high
performance connection clamps)
Safety functions
Temperature monitoring
Display
Transflective sunlight readable 5.7" colour
display with a resolution of 640 x 480 pixels
Memory At least 1000 records of test data
Interfaces USB 2.0
Operating temperature -20°C to 55°C
Operating humidity Max. relative humidity 93% at 30°C
Storage temperature -30°C to 70°C
Weight 10 kg
Dimensions 410 x 175 x 335 mm
Protection class (in accordance with
IEC 61140 (DIN VDE 0140-1))
II
Ingress protection rating (in accordance
with IEC 60529 (DIN VDE 0470-1))
IP 50 (open)
IP 54 (closed)