The BTCT126 is a 4-wire isolating temperature transmitter designed for any type of thermocouple input and an isolated process signal output. All transmitters feature electronic cold junction compensation, matched to the type of thermocouple used. Upscale or downscale burn-out isoptional. Final calibration is trimmed using the front accessible ‘offs’and ‘span’ 15-turn trim adjustments. Zero suppression or elevation isavailable up to 300% of range. Output signal follows thermocouple curve and is indicated by the LED on front, which gives a clear indication of module function, presence of signal, and output loop closed (current outputs only). Thermocouple signal is isolated from output signal. RF and power transient protection is standard as it is with all BASI modules. Various power supply choices are available varying from 240Vac down to 8Vdc, all provide power isolation.