Beckhoff Automation GmbH & Co. KG EL3218
EL3218 EtherCAT Terminal, 8-channel analog input, temperature, RTD (Pt100), 16 bit, 3-wire connection
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Технические характеристики
| Number of inputs | 8 |
|---|---|
| Power supply | via the E-bus |
| Distributed clocks | â |
| Input filter cut-off frequency | typ. 1 kHz |
| Sensor type | Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000, resistance measurement (e.g. potentiometer, 10 Ωâ¦4 kΩ), KTY sensors (types see documentation) |
| Connection technology | 2- or 3-wire (default: 3-wire) |
| Conversion time | approx. 170 ms default setting |
| Measuring range | -200â¦+850°C (Pt sensors); -60â¦+250°C (Ni sensors) |
| Measuring current | < 0.5 mA (load-dependent) |
| Temperature range | -200â¦+850°C (Pt sensors); -60â¦+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 | â |
| Special features | integrated digital filter, limit value monitoring, variable connection technology |
| Масса | approx. 60 g |
| Operating temperature | -25â¦+60°C |
| Storage temperature | -40â¦+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 |
| 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 |