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Beckhoff EL3218

EtherCAT Terminal, 8-channel analog input, temperature, RTD (Pt100), 16 bit, 3-wire connection

MPN: EL3218
Category: EL3xxx | Analog input

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What is the Beckhoff EL3218?

The EL3218 analog input terminal facilitates the direct connection of eight resistance sensors using 3-wire technology over a width of 24 mm (high-density housing). The measured resistance value can either be output directly in ohms or transformed into a

Specifications

Number of inputs	8
Power supply	via the E-bus
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…4 kΩ), KTY sensors (types see documentation)
Connection method	2- or 3-wire (default: 3-wire)
Conversion time	approx. 170 ms default setting
Measuring range	-200…+850°C (Pt sensors); -60…+250°C (Ni sensors)
Measuring current	0.5 mA (load-dependent)
Temperature range	-200…+850°C (Pt sensors); -60…+250°C (Ni sensors)
Resolution	0.1°C or 0.01°C per digit
Measurement error/uncertainty	±0.5°C for Pt sensors, 8 x 3-wire connection
Electrical isolation	500 V (E-bus/signal voltage)
Current consumption E-bus	typ. 120 mA
Current consumption power contacts	–
Special features	integrated digital filter, limit value monitoring, variable connection technology
Weight	approx. 60 g
Operating temperature	-25…+60°C
Storage temperature	-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
Approvals/markings	CE, UL
Design form	HD (High Density) housing with signal LEDs
Material	polycarbonate
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 BZxxxx series
Wiring	solid conductors (s): direct plug-in technique; fine-stranded conductors (st) and ferrule (f): spring actuation by screwdriver
Connection cross-section	s: 0.08…1.5 mm², st: 0.25…1.5 mm², f*: 0.14…0.75 mm²
Connection cross-section AWG	s: AWG28…16, st: AWG22…16, f*: AWG26…19
Stripping length	8…9 mm
Current load power contacts	Imax: 10 A
Dimensions (W x H x D)	24 mm x 100 mm x 68 mm

EL3218: frequently asked questions

When can EL3218 be shipped?

EL3218 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.

Can I pick up EL3218 in person?

Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.

Is express delivery available?

Yes — mention it when you request a quote for EL3218 and we'll include express shipping options in our reply.

My factory is down and I need this urgently — can you help?

For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for EL3218, subject to availability and destination.