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2-channel analog input terminal 4…20 mA, differential input, 16 bit

Technical data

EL3122 | ES3122

Number of inputs

2 (differential)

Power supply

via the E-bus


differential input

Signal current

4…20 mA

Distributed clocks


Internal resistance

85 Ω typ. + diode voltage

Input filter limit frequency

5 kHz

Common-mode voltage UCM

10 V max.

Conversion time

50 µs (fast mode 35 µs)


16 bit (incl. sign)

Measuring error

< ±0.3 % (relative to full scale value)

Surge voltage resistance

35 V max.

Electrical isolation

500 V (E-bus/signal voltage)

Current consumption power contacts

Current consumption E-bus

typ. 170 mA

Bit width in the process image

inputs: 8 byte

Special features

standard and compact process image, activatable FIR/IIR filters, limit value monitoring


approx. 55 g

Operating/storage temperature

-25…+60 °C/-40…+85 °C

Relative humidity

95 %, no condensation

Vibration/shock resistance

conforms to EN 60068-2-6/EN 60068-2-27

EMC immunity/emission

conforms to EN 61000-6-2/EN 61000-6-4

Protect. class/installation pos.

IP 20/variable

Pluggable wiring

for all ESxxxx terminals


CE, UL, Ex