Industrial HHJ4-A Electronic Counter Meter Module

C-LIN HHJ4-A is a microcontroller-based six-digit electronic counter relay designed for industrial counting on 110 VAC systems. It accepts a wide range of input pulse signals and provides opto-isolated counting inputs, with a selectable multiplier to scale counts. The unit displays counts on a 6-digit LED readout, with a counting range of 1 to 999,999. It supports multiple supply variants, including DC24V, AC24V, AC220V, and AC380V, enabling use across diverse control environments. Power outages are memory-protected with up to 10 years of retention using EPROM memory, ensuring the last counted value is preserved during power loss. Counting direction can be configured for positive or inverse counting, and the HHJ4-A offers various input/output operating modes to suit different automation tasks. This counter meter module is suited for production line tallying, equipment usage monitoring, batch counting, and other industrial counting applications requiring reliable, standalone event counting with a clear LED display.