The circuit board adopts multi-layer high-temperature resistant FR-4 industrial PCB with fully enclosed electromagnetic shielding layout. Every signal channel is equipped with 1000V AC/DC galvanic isolation between field wiring terminals and internal logic circuits, which effectively eliminates strong electromagnetic noise interference generated by inverters, high-voltage switch cabinets and large rotating equipment in thermal power, petrochemical and metallurgical heavy industrial sites. All finished boards pass strict full-process factory verification, including 72-hour high-low temperature cyclic aging test, full-channel pulse measurement precision calibration, long-term full-load bus communication burn-in and channel short-circuit fault simulation. It supports single-slot hot-swappable installation without shutting down the entire DCS system, and integrates multi-level hardware protection circuits such as surge suppression, overvoltage, overcurrent, reverse polarity and short-circuit prevention. Independent LED diagnostic indicators display power supply status, bus link state and single-channel signal fault alarms, realizing fast on-site fault location, greatly improving the measuring precision and long-term stability of flow, rotation speed and pulse parameters in industrial production processes.

Medium & super-large thermal power plant Ovation WDPF distributed control systems, multi-unit integrated petrochemical flow measurement remote acquisition cabinets, metallurgical factory production line speed monitoring stations, multi-station automatic control systems of large municipal wastewater treatment plants, pulp & paper factory whole-plant flow pulse signal acquisition racks, multi-rack redundant central control rooms of traditional heavy industry, energy and chemical continuous production line flow & speed parameter remote monitoring automation platforms, centralized DCS monitoring control systems for large-scale distributed energy storage power stations