This module is dedicated to collecting industrial PT100 and PT1000 RTD signals. It implements front-end signal filtering, constant current excitation, galvanic isolation and optimized high-precision temperature conversion algorithms, outputting low-drift, stable digital temperature data to the DCS main controller. Compared with the G01 generation, the G02 model updates core sampling circuits to minimize long-term measurement drift of weak resistance signals, and deploys an upgraded lead resistance compensation algorithm to eliminate reading deviations induced by long field cables. It supports 2-wire, 3-wire and 4-wire RTD wiring, with independent isolation circuits per channel to eliminate cross-channel signal crosstalk.

Constructed with multi-layer high-temperature resistant FR-4 industrial PCB and fully enclosed electromagnetic shielding layout, each signal channel adopts 1000V AC/DC galvanic isolation between field terminals and internal logic circuits to resist severe electromagnetic noise from inverters, high-voltage switchgears and large rotating machinery in thermal power, petrochemical and metallurgical heavy industrial sites. Every finished card passes complete factory reliability verification: 72-hour high-low temperature cyclic aging test, full-channel temperature precision calibration, long-duration full-load bus communication burn-in and sensor open/short-circuit fault simulation. It supports single-slot hot-swappable installation without overall DCS system shutdown, and integrates multi-level hardware protections including surge suppression, overvoltage protection, overcurrent protection, reverse polarity prevention and short-circuit protection. Independent LED diagnostic indicators display power supply status, bus link state and single-channel sensor fault alarms for fast on-site troubleshooting, greatly lifting long-term measurement accuracy and operational stability of industrial process temperature monitoring.

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