EL3314-0010 | 4-channel thermocouple input terminal, high-precision, with open-circuit recognition

The EL3314-0010 analog input terminal allows four thermocouples to be connected directly. The EtherCAT Terminal circuit can operate thermocouple sensors using the 2-wire technique. A microprocessor handles linearisation across the whole temperature range, which is freely selectable. The error LEDs indicate a broken wire. Compensation for the cold junction is made through an internal high-precision temperature measurement at the terminal. The EL3314-0010 can also be used for mV measurement.

Technical data	EL3314-0010
Number of inputs	4
Power supply	via the E-bus
Thermocouple sensor types	types J, K, L, B, E, N, R, S, T, U (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. 2.5 s up to 20 ms, depending on configuration and filter setting, default: approx. 250 ms
Voltage measurement	±78 mV (error: ±25 µV)
Temperature range	in the range defined in each case for the sensor (default setting: type K; -200…+1,370 °C); voltage measurement: ±78 mV in 10 nV resolution
Resolution	24 bits, presentation adjustable: 0.1/0.01/0.001 °C per digit or 10 nV per digit
Measuring error	@ 50 Hz filter, @ 25 °C ambient temperature: type B: ±5.0 °C type E: ±1.8 °C type J: ±1.8 °C type K: ±1.8 °C type L: ±1.8 °C type N: ±2.5 °C type R: ±4.0 °C type S: ±4.0 °C type T: ±1.8 °C type U: ±1.8 °C
Electrical isolation	500 V (E-bus/signal voltage)
Current consumption power contacts	–
Current consumption E-bus	typ. 200 mA
Special features	open-circuit recognition
Weight	approx. 60 g
Operating/storage temperature	0…+55 °C/-25…+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