Beckhoff
EL3314-0002
Beckhoff EL3314-0002
EL3314-0002 | 4-channel input terminal, thermocouple, high-precision, electrically isolated
Description
The EL3314-0002 analog input terminal allows the direct 2-wire connection of four thermocouples. The channels are electrically isolated from one another and from the E-bus, thus preventing interference and damage due to cross-currents. Various types of thermocouple are supported; the voltage is calculated in temperature directly in the terminal. The terminal can also be used for mV measurements. A broken wire is signalled by the error LEDs and on the fieldbus. Cold junction compensation takes place by means of precise internal temperature measurement at the connecting terminals, but operation with an external cold junction is also possible.
Technical parameters
| Number of inputs: | 4 |
| 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; depending on sensor length, conversion time, sensor type |
| Connection method: | 2-wire |
| Resolution: | 24 bit, presentation adjustable: 0.1/0.01/0.001 °C per digit or 10 nV per digit |
| Wiring fail indication: | yes |
| Conversion time: | approx. 1.2 s up to 20 ms, depending on configuration and filter setting, default: approx. 100 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…+1370 °C); voltage measurement: ±78 mV in 10 nV resolution |
| 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; type C: ±3.5 °C |
| Electrical isolation: | 2500 V functional isolation (test voltage channel/channel and channel/fieldbus, production test) |
| Current consumption power contacts: | – |
| Current consumption E-bus: | typ. 200 mA |
| Special features: | open-circuit recognition, simultaneous measurement of the channels |
| 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 |
| Approvals/markings: | CE |
Logistic parameters
| ECCN: | |
| Country of Origin: | |
| EAN: | |
| Weight: | 0.00 kg |
| Length: | 0.00 m |
| Width: | 0.00 m |
| Height: | 0.00 m |