These Data Acquisition modules communicate over the HART protocol. HRT-370 is a HART signal filter specially designed to solve the issue that analog signal gets interfered while additional HART signal adding to communication process. When connecting HRT-370 to a HART instrument, it splits the input HART signal to two output channels. The I-87H17W is a HART analog input module. It can measure 4~20mA current and act as a HART master, allowing communication with HART field devices. Its user-friendly design saves a lot of work when measuring current due to a built-in resistor.
HART signal filter. It splits the HART input signal into two output channels. One keeps the original HART signal and the other filters out the HART signal to output a pure analog signal. More....