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Beckhoff
EL3311
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Beckhoff EL3311
EL3311 | 1-channel thermocouple input terminal with open-circuit recognition
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Description
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. Linearisation over the full temperature range is realised 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.
Technical parameters
| Number of inputs: | 1 |
| Power supply: | via the E-bus |
| Thermocouple sensor types: | types K, J, L, E, T, N, U, B, R, S, C (default setting type K), mV measurement |
| Distributed clocks: | – |
| Input filter limit frequency: | typ. 1 kHz; dependent on sensor length, conversion time, sensor type |
| Connection method: | 2-wire |
| Wiring fail indication: | yes |
| Conversion time: | approx. 750 ms up to 20 ms, depending on configuration and filter setting, default: approx. 75 ms |
| Temperature range: | in the range defined in each case for the sensor (default setting: type K; -200…+1370 °C); voltage measurement: ±30 mV…±75 mV |
| Resolution: | 0.1 °C per digit |
| Measuring error: | < ±0.3 % (relative to full scale value) |
| Electrical isolation: | 500 V (E-bus/signal voltage) |
| Current consumption power contacts: | – |
| Current consumption E-bus: | 200 mA |
| Bit width in the process image: | 1 x 32 bit TC input, 1 x 16 bit TC output |
| Special features: | open-circuit recognition |
| 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. class/installation pos.: | IP 20/variable |
| Approvals: | CE, UL, Ex |
Logistic parameters
| ECCN: | |
| Country of Origin: | |
| EAN: | |
| Weight: | 0.00 kg |
| Length: | 0.00 m |
| Width: | 0.00 m |
| Height: | 0.00 m |