Technical Specifications Rated voltage DC 24V. Operating ambient temperature ‑40℃ ~ +85℃. Relative humidity 5%‑95%, non‑condensing. Protection grade IP20. DIN‑rail mounting mode. Equipped with screw‑type wiring terminals, compatible with I/A series analog loop circuit.
Functional Features Realizes load matching for analog signal loop. Reduces signal distortion induced by complex industrial electromagnetic field. Compact modular structure saves cabinet installation space. Convenient for on‑site disassembly and replacement during maintenance work.
Application Scenarios Petrochemical plant automation cabinet, chemical production process control, thermal power auxiliary control system, metallurgical industrial control cabinet, oil‑gas processing automatic control equipment.
Performance Parameters Resistance performance keeps stable under long‑time continuous industrial running condition. Resists temperature drift under wide temperature working condition. Mechanical structure satisfies industrial anti‑vibration requirement.
Structural Characteristics Integrated modular housing. DIN‑rail clamping buckle structure for quick installation. Screw‑type wiring terminals for signal loop access. Internal precision resistance element with heat‑resistant design.
Working Principle This assembly accesses analog instrument signal loop, forms matched load impedance inside signal transmission circuit. It improves signal transmission adaptability of long‑distance cables, reduces signal distortion, and enables field analog process signals to be stably transmitted to DCS system I/O modules.
Installation Requirements Mount on DIN‑rail inside control cabinet. Ensure all wiring terminals are firmly locked. Maintain good ventilation inside cabinet. Installation position should avoid high‑voltage interference sources.
Usage Notes Thoroughly check circuit loop parameters before commissioning. Forbid overload operation. Conduct regular inspection for wiring looseness risk. Prevent dust and corrosive gas erosion.
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