BL20 Economy Module. 4 Analog Thermocouple Inputs. Ident. no.: 6827367. Fieldbus-independent. Electronics and connection technology in one housing. Connectivity: Push-in terminals. Protection class IP20. LEDs indicate status and diagnostic. Electronics galvanically separated from the field level via optocouplers. 4 analog inputs for the connection of thermocouples. Types B, C, E, G, J, K, N, R, S and T. Cold junction compensation via integrated Pt1000 probe