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Main Core Functions

1. High-precision temperature detection Built-in PT100 platinum resistance sensing element with standard 3-wire measurement design, featuring high accuracy and low temperature drift. The measuring range covers -50°C to 450°C, suitable for measuring high and low-temperature process media.
2. Integrated signal transmission conversion The probe and transmitter head are integrated as one assembly. It converts the resistance signal of the platinum RTD into industry-standard 4~20mA analog current signal, which can be transmitted to DCS and PLC systems over long distances with simple wiring.
3. Explosion-proof safety housing The flameproof explosion-proof junction box complies with installation standards for hazardous explosive areas in chemical and oil & gas plants. It can operate safely in flammable and combustible gas environments. The housing provides dustproof and waterproof protection for outdoor and humid cabinet conditions.
4. Standard industrial process connection The stainless steel probe is fitted with standard threaded process fittings for direct installation on pipes, storage tanks and equipment flanges, enabling easy disassembly and replacement. The stainless steel stem delivers excellent medium corrosion resistance.
5. Built-in hardware self-diagnosis Onboard circuit self-test function outputs fault current in case of probe open circuit or short circuit, allowing the control system to quickly locate instrument faults for maintenance.
6. Strong anti-interference performance Internal signal isolation and filter circuits suppress electromagnetic interference from on-site inverters and large motors, ensuring distortion-free signal transmission over long cable runs.

Application Fields

1. Oil, Gas & Petrochemical Industry (Primary Application) Temperature monitoring of oil & gas transmission pipelines, refinery reactors, heating furnaces, heat exchangers and storage tanks. The explosion-proof design is certified for Class 1 & Class 2 hazardous zones in chemical plants.
2. Thermal Power Plants Temperature measurement of boiler feedwater, steam pipelines, flue gas, turbine auxiliary oil and cooling water, transmitting temperature data to Emerson Ovation and DeltaV DCS systems.
3. Fine Chemical Processes Closed-loop temperature control for reaction kettles and distillation towers, cooperating with regulating valves to maintain constant process temperature.
4. Wastewater Treatment, Waste Incineration & New Energy Industries Temperature monitoring of boiler water, flue gas and electrolyte storage tanks for general industrial temperature acquisition.

Supplementary Product Information

1. Supply Status: The 214C series is a mainstream mass-produced temperature sensor from Rosemount. Authorized Emerson/Schneider distributors in China can supply brand-new original units directly.
2. Structural Composition: The device consists of two separable parts: the upper Model 79 explosion-proof transmitter connection head, and the lower stainless steel PT100 sensing probe, which can be purchased separately.
3. Model Code Definition: The suffix codes define customized parameters including stem length, thread size, material, explosion-proof rating, output signal and certification standards.

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