The BDSI233 provides galvanic isolation where common mode voltages or earth loop problems occur. The BDSI233 contains two identical signal powered isolators each similar to the BSPI232. Each channel is powered by the input signal, therefore it can only be offered in current input versions with a zero offset. (4 – 20mA, 10 – 50mA). The standard input output configuration is 4-20mA to 4-20mA. Each channel is fully isolated from each other and both have full input output isolation. Load trim adjustment (full scale) is conveniently placed on the module front for each channel. Zero tracking is automatic and requires no adjustment.