Power supply
Battery : 2 AA size batteries alkaline manganese cells as
per IEC LR6.
Service life
: for
NP15-2/
3
/
5:
600 hrs. for VDC, ADC
300 hrs. for VAC, AAC
for
NP15-6
:
400 hrs. for VDC, ADC
200 hrs. for VAC, AAC
Battery test : Automatic display of “ ” symbol when battery
voltage falls below following value: approx. 2.
Electromagnetic compatibility (EMC)
Emission
: EN 61326 : 2002 Class B
Immunity
:IEC 61000-4-2
8 kV atmosphere discha
4 kV contact discharge
:IEC 61000-4-3
3 V/m
Safety
: IEC 61010-1-2010
Installation category : CAT IV 600V CAT III 1000V
Pollution degree
: 2
High Voltage Test
: 6.7 kV (IEC 61010-1-2010)
Fuses
Fuse for upto 660 mA ranges
FF (UR) 1.6 A / 1000V AC/DC; 6.3mm X 32mm; rating 10kA with
1000VAC/DC and ohmic load; in conjuction with power diodes, protects
all current measuring ranges upto 660mA.
Fuse for upto 10A ranges (Not for
NP10-3
)
FF (UR)16 A / 1000 V AC/DC; 10mm x 38mm; rating 30 kA with
1000VAC/DC and ohmic load; protects the 10A ranges upto 1000V
AC/DC See“17. maintenance” for types of fuses.
Response time
Transient response for
step function of the
measured quantity
of analog
indication
A
, A
~
660
W
…6.6 M
W
66 M
W
6.6nF… 66
µ
F
660
µ
F…6.6 mF
66 mF
660 Hz,6.6KHz
66 KHz,660 Khz 1MHz
% (=>10 Hz)
Measured quantity/
measuring range
of digital
display
0.1 s
0.1 s
0.2s
0.1 s
1 s
1 s
2 s
1 s
max. 1 s
max. 3 s
max. 15 s
max. 2 s
max. 1 s
from 0 to 80 % of upper range limit
from 0 to 50 %
of upper range limit
from 0 to 80 %
of upper range limit
1 s
max. 2.5 s
0.1 s
0.7 s
1.4 s
7.0 s
2.0 s
0.5 s
0.7 s
V
, V
~,
0
C
Response time (after manual range selection)
24
