he 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.
| 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 IECEx: Ex ec IIC T4 Gc cFMus: Class I, Division 2, Groups A, B, C, D Class I, Zone 2, AEx ec IIC T4 Gc |
- Housing data
| 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 (s), flexible conductor (st) and ferrule (f): 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
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