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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 e…
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Description
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
Specification
| 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 |
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