Description
The EL3208 analog input terminal facilitates the direct connection of eight resistance sensors over a width of 12 mm (high-density housing). 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 EL3208 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 | EL3208 |
|---|---|
| Number of inputs | 8 |
| Power supply | via the E-bus |
| Technology | 2-wire |
| Signal type | single-ended |
| 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. 170 ms default setting, 3…1600 ms configurable |
| Measuring current | < 0.5 mA (load-dependent) |
| Measuring range | -200…+850 °C (Pt sensors); -60…+250 °C (Ni sensors) |
| 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. 140 mA |
| 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/any |
| Approvals/markings | CE, UL |
- Housing data
| Housing data | EL-12-16pin |
|---|---|
| Design form | HD (High Density) housing with signal LEDs |
| 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 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*: AWG 28…16, st*: AWG 22…16, f*: AWG 26…19 |
| Stripping length | 8…9 mm |
| Current load power contacts | Imax: 10 A |
*s: solid wire; st: stranded wire; f: with ferrule
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