Current Analog Input Module 4AI

CT-3234 Current Analog Input Module 4AI The CT-3234 4-channel current analog input module by Sichuan Odot delivers robust, high-integrity signal acquisition for demanding industrial applications worldwide, directly addressing global pain points such as electrical noise in current loops, complex sensor power requirements, and vulnerability to voltage surges. Supporting 4 channels of 0–20mA or 4–20mA current input, the module aligns with standard industrial transmitter outputs and accepts both 2-wire sensors (requiring external loop power) and 4-wire active sensors, offering maximum field flexibility. A key differentiator is its magnetic isolation between the internal backplane bus and field inputs—eliminating ground loops and blocking common-mode interference for stable data transmission. Each channel interfaces directly with active analog current-output sensors and features built-in TVS overvoltage protection, safeguarding against lightning strikes, switching transients, and ESD event…

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