product listing
Products
Describe
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 data | EL3311 |
---|---|
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 |
Signal type | differential |
Distributed clocks | – |
Input filter limit frequency | typ. 1 kHz; depending 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 |
Voltage measurement | ±30 mV…±75 mV |
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/markings | CE, UL, ATEX |
Ex marking | II 3 G Ex nA IIC T4 Gc |