Beckhoff EL33-00 Series, Документация, Страница: 21 / 204

Product overview
EL33xx-00x0 21 Version: 4.2
2.2 EL3314-0002
2.2.1 Introduction
Fig. 15: EL3314-0002
4-channel input terminal, thermocouple, high-precision, electrically isolated
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. 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 or voltage measurement without cold junction
consideration is also possible.
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