Product Details:

SIEMENS 352EA21NNF is the MYCRO 352 single-loop digital controller originally manufactured by Moore, a microprocessor-based standalone loop controller for industrial process measurement and closed-loop regulation. This EA version is equipped with built-in I/O expander hardware and 40-point rear terminal assembly, supporting multiple analog and discrete signal interfaces to receive 4-20mA HART signals, thermocouple and RTD temperature signals from field sensors. It integrates abundant built-in control function blocks including PID, adaptive gain, ratio control, alarm and mathematical calculation functions, users can freely combine control strategies without complex programming. The front panel is fitted with LCD display and operation buttons for local viewing of process variable, setpoint, output value and alarm status, supporting on-site calibration, range setting and mode switching between automatic and manual control.

It adopts heavy-duty metal housing with anti-vibration and anti-corrosion coating, suitable for panel mounting on instrument doors and control cabinets in humid and vibration-prone industrial environments. The controller supports communication connection with HART field instruments and upper host systems, and can be configured via dedicated GC352 configuration software to edit tags, adjust parameters and query device self-diagnosis information remotely. The NNF suffix represents this specific hardware revision and terminal definition scheme. Every spare unit will pass signal linearity calibration, PID function test and communication inspection before shipment to ensure stable operation and compatibility with legacy Moore automation loops. It is widely stocked as replacement spare parts for pressure, flow and temperature closed-loop measurement and control loops.

Industry Applications: Applied in petrochemical auxiliary skids, gas flow control systems, boiler closed-loop control rooms and water treatment facilities for conventional analog signal acquisition and valve regulating output.

Note: Confirm SAM combined I/O feature and hardware revision before ordering

This is from our current stock.