Analog inputs

Number

4

Design

galvanically isolated, single ended, 2 A/D converters per channel

Input signal / nominal current

5 A AC

Resolution

24 Bit (Delta-Sigma)

ADC sampling rate

500 kHz

ibaPDA timebase (update time)

min. 2 μs; freely adjustable (integer multiple); max. 1 ms for filter signals

Filters

    ADC signal

analog

R/C low-pass, 1^st order, 150 kHz

digital

anti-aliasing filter (FIR), 84th order; cutoff frequency = 0.45 x ADC sampling rate; oversampling = 32 x ADC sampling rate

    Filter signal¹

            Like ADC signal, in addition:

digital

anti-aliasing filter (Elliptic/Cauer); 10th order; cutoff frequency = 0.45 / timebase

Protection factor / overload current

30 x nominal current

Nominal measuring range

±15 A

Measurable overload range²

-225 A … -15 A / +15 A … +225 A

Input current max.

15 A DC; permanent

In overload range

150 A AC; transient for 1 s per minute³

Input voltage max.

CAT III 600 V / CAT IV 300 V

Measuring shunt

2.0 mΩ

Input resistance

Device switched off

2.0 mΩ

Device switched on

2.0 mΩ

Input capacity

n/a

Accuracy (+25 °C)⁴

Nominal measuring range

< 0.1 % of double nominal measuring range end value

Overload range⁵

< 0.1 % of double overload range end value

Electrical isolation

Channel - channel

basic insulation: CAT III 600 V

Channel - system

reinforced insulation: CAT III 600 V

Connection technology

2x 4-pin pin header, pitch 7.62 mm

Connector

2x enclosed; push-in, conductor max. 6 mm², locking lever (latching), protected against reverse polarity, lockable, screw-on, without jumper; For information on the conductor and stripping length, see chapter Connection technology connector ; Order number: 52.000051

Phasor measurement unit⁶

integrated

Power frequency measurement (10 Hz ... 80 Hz)

interval: 1 s / 10 s (according to IEC 61000-4-30)