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Beckhoff EL3204 EtherCAT Terminal analog input


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Beckhoff EL3204 EtherCAT Terminal, 4-channel analog input, temperature, RTD (Pt100), 16 bit. The EL3204 analog input terminal facilitates the direct connection of four resistance sensors. The measured resistance value can either be output directly in ohms or transformed into a temperature. If the temperature at the measuring point is of interest, the conversion from resistance to temperature can be carried out in the terminal according to various sensor characteristics (Pt100, Pt1000, NI120, NI1000, KTY types, etc.). The EL3204 can operate sensors using 2-wire technology. The EtherCAT Terminals indicate their measurement capability by means of light emitting diodes and status bits in the EtherCAT process image.

Model: EL3204
Categories: EtherCAT Terminal
Brand: Beckhoff

Beckhoff EL3204 EtherCAT Terminal analog input

Technical data EL3204
Number of inputs 4
Power supply via the E-bus
Technology 2-wire
Distributed clocks
Input filter limit frequency typ. 1 kHz
Sensor types Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000, resistance measurement (e.g. potentiometer, 10 Ω…1/4 kΩ), KTY sensors (types see documentation)
Connection method 2-wire
Conversion time approx. 85 ms default setting, 2…800 ms configurable
Measuring current < 0.5 mA (load-dependent)
Temperature range -200…+850 °C (Pt sensors); -60…+250 °C (Ni sensors)
Resolution 0.1 °C per digit
Measurement error/ uncertainty < ±0.5 °C for Pt sensors
Electrical isolation 500 V (E-bus/signal voltage)
Current consumption power contacts
Current consumption E-bus typ. 190 mA
Bit width in the process image 4 x 32 bit RTD input
Special features integrated digital filter, limit value monitoring
Weight approx. 60 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. rating/installation pos. IP20/variable
Pluggable wiring for all ESxxxx terminals
Approvals/markings CE, UL, ATEX, IECEx, cFMus
Ex marking ATEX:
II 3G Ex ec IIC T4 Gc
Ex ec IIC T4 Gc
Class I, Division 2, Groups A, B, C, D
Class I, Zone 2, AEx ec IIC T4 Gc
Housing data EL-12-8pin ES-12-8pin
Design form compact terminal housing with signal LEDs terminal housing with pluggable wiring level
Material polycarbonate
Dimensions (W x H x D) 12 mm x 100 mm x 68 mm
Installation on 35 mm DIN rail, conforming to EN 60715 with lock
Side by side mounting by means of double slot and key connection
Marking labeling of the BZxxx series
Wiring solid conductor (e), flexible conductor (f) and ferrule (a): spring actuation by screwdriver
Connection cross-section s*: 0.08…2.5 mm²,
st*: 0.08…2.5 mm²,
f*: 0.14…1.5 mm²
s*: 0.08…1.5 mm²,
st*: 0.08…1.5 mm²,
f*: 0.14…1.5 mm²
Connection cross-section AWG s*: AWG 28…14,
st*: AWG 28…14,
f*: AWG 26…16
s*: AWG 28…16,
st*: AWG 28…16,
f*: AWG 26…16
Stripping length 8…9 mm 9…10 mm
Current load power contacts Imax: 10 A

*s: solid wire; st: stranded wire; f: with ferrule

Ordering information
EL3204 EtherCAT Terminal, 4-channel analog input, temperature, RTD (Pt100), 16 bit
ES3204 EtherCAT Terminal, 4-channel analog input, temperature, RTD (Pt100), 16 bit, pluggable wiring


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