Analog inputs

Number	4
Design	galvanically isolated, single ended; 3 pins per channel: voltage (U+) / GND (U-/I-) / current (I+)
Input signal	voltages up to 60 V AC_peak or 60 V DC; currents up to 20 mA AC_peak or 20 mA DC; switchable per channel
Resolution	24 bit (Delta-Sigma)
ADC sampling rate	100 kHz
ibaPDA timebase (update time)	min. 10 μs; freely adjustable (integer multiple); max. 1 ms for filter signals
Filters
ADC signal
analog	R/C low-pass, 1^st order, 50 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
Measuring ranges
Voltage (U)	±2.5 V / ±10 V / ±24 V / ±60 V
Current (I)	±20 mA / 0…20 mA DC / 4…20 mA DC
Input voltage max.
Measurement category / CAT protection class (U)	CAT III 100 V
Current (I)	1 V DC
Input resistance
Voltage (U)	100 kΩ / 1 MΩ²; switchable
Device switched off	100 kΩ / 1.00 MΩ
Device switched on	115 kΩ / 1.02 MΩ
Current (I)
Device switched off	50 Ω
Device switched on	50 Ω
Input capacity
Voltage (U)	1.2 pF
Current (I)	n/a
Accuracy (+25 °C)	< 0.1 % of the respective double full scale value
Electrical isolation
Channel - channel	Functional isolation: 2.5 kV AC
Channel - system	Functional isolation: 2.5 kV AC
Connection technology	2x 6-pin pin header, pitch 5.08 mm
Connector	2x enclosed; push-in, conductor max. 2.5 mm², locking lever (latching), protected against reverse polarity, lockable; For information on the conductor and stripping length, see chapter Connection technology connector ; Order number: 52.000053

Status functions

Current measurement

Overrange/underrange; reversed polarity; broken cable

Additional functions

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

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