EL3311 | EtherCAT Terminal, 1-channel analog input, temperature, thermocouple, 16 bit
+24 V
thermocoupler:
differential inputs
max. ± 2 V to ground
EL3311 | EtherCAT Terminal, 1-channel analog input, temperature, thermocouple, 16 bit
Thermocouple measurement with Beckhoff components: precise and fast
Measurement technology easily configured: Analog EtherCAT input terminals.
Measurement technology simply integrated: With the analog EtherCAT Terminals.
The EL3311 analog input terminal allows thermocouples to be connected directly. The EtherCAT Terminal's circuit can operate thermocouple sensors using the 2-wire technique. Linearization over the full temperature range is realized with the aid of a microprocessor. The temperature range can be selected freely. The error LEDs indicate a broken wire. Compensation for the cold junction is made through an internal temperature measurement at the terminal. The EL3311 can also be used for mV measurement.
Product status:
regular delivery
Product information
| Technical data | EL3311 |
|---|---|
| Number of inputs | 1 |
| Power supply | via the E-bus |
| Distributed clocks | – |
| Input filter limit frequency | typ. 1 kHz |
| Connection method | 2-wire |
| Conversion time | approx. 750 ms up to 20 ms, depending on configuration and filter setting, default: approx. 75 ms |
| Voltage measurement | ±30/±60/±75 mV |
| Resolution | 16 bit, representation adjustable: 0.1/0.01°C or 1/2/4 µV per digit |
| Temperature measurement (thermocouple) | type B, C, E, J, K, L, N, R, S, T, U (default setting: type K) |
| Measurement uncertainty (temperature measurement) | at 23°C ambient temperature, with internal cold junction, according type: B: ±8.5°C; C: ±6.2°C; E: ±2.5°C; J: ±2.7°C; K: ±3°C; L: ±2.3°C; N: ±3°C; R: ±6.7°C; S: ±7.1°C; T: ±2.9°C; U: ±2.5°C; for further details see documentation |
| Measurement uncertainty (voltage measurement) | at ±75 mV, 23°C ambient temperature: < ±0.14% (relative to full scale value) |
| Electrical isolation | 500 V (E-bus/signal voltage) |
| Current consumption power contacts | – |
| Current consumption E-bus | 200 mA |
| Special features | channel by channel wire break detection, internal and external cold junction, firmware filter adjustable |
| Operating/storage temperature | -25…+60°C/-40…+85°C |
| Weight | approx. 60 g |
| 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 |
| Approvals/markings | CE, UL, ATEX, IECEx |
| Protect. rating/installation pos. | IP20/variable |
| Ex marking | ATEX: II 3 G Ex ec IIC T4 Gc IECEx: Ex ec IIC T4 Gc |
| Housing data | EL-12-8pin |
|---|---|
| Design form | compact terminal 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 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 |
| Connection cross-section AWG | s*: AWG28…14, st*: AWG28…14, f*: AWG26…16 |
| 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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