18
Measuring range of bipolar voltage Un:
-120...-100...100...120 V d.c.
-300...-250...250...300 V d.c. input resistance > 2 M
-600...-400...400...600 V d.c.
Measuring range of bipolar current In:
-1.2...-1...1...1.2 A d.c.
input resistance 10 m 10%
-6...-5...5...6 A d.c.
input resistance 2 m 10%
Basic error
(at manufacturer’s settings):
- voltage and current:
(0.2% of the range + 1 digit)
Sustained overload:
150% Un (only for 400 V input),
120% Un (for other Un),
120% In
Short duration overload (1s)
voltage input 2 Un (<1000 V)
current input 10 In
7.5. Common Technical Data for the Whole
N24 and
N25 Series
Rated operating conditions:
- supply voltage
230 V 10% a.c. (45...65 Hz)
110 V 10% a.c. (45...65 Hz)
24 V 10% a.c. (45...65 Hz)
85...253 V a.c. (45...65 Hz) or d.c.
20...40 V a.c. (45...65 Hz) or d.c.
- ambient temperature
-10...23...55
°
C
- storage temperature
-25...+85
°
C
- humidity
< 95% (condensation inadmissible)
- work position
any
