SI4P is a Signal Isolator, that is used to prevent damage to valuable PLCs, DCS, etc. from fluctuations in the input signal from field 4P is factory-set to accept input from either of 8 types of thermocouples (B, E, J, K, N, R, S, T), Pt1000, Pt200 & Pt100 3-wire RTD sensors, DC voltage and DC current signals as well as resistance input.
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