Omron H7CX-A4D-N Multifunction Counter Tachometer

The Omron H7CX-A4D-N is a panel-mount device in the Omron H7CX Series that functions as a multifunction preset counter and tachometer for counting, timing, and pulse-based speed measurement. It delivers a 4-digit digital display, operates on 12–24 VDC, accepts universal NPN/PNP inputs, and provides a transistor output, with modes for counter, tachometer, and timer plus manual or external reset. It supports counting up to 30 kHz (model dependent) and operates from -10°C to 55°C, making it suitable for packaging machines, conveyors, filling equipment, bottling lines, labeling systems, material handling, and assembly equipment where precise counting and speed monitoring are required. Common replacements include Omron H7CX-A4W-N, H7EC-NV, and H5CX-A11-N.