Description
PTFE Coated Duplex PT100 RTD Sensor (Model APED-12×75) is designed for accurate temperature measurement in corrosive industrial environments where both chemical resistance and measurement reliability are essential. The sensor features a bonded PTFE (Teflon) coating over an SS316 sheath, providing excellent protection against acids, alkalis, and aggressive process chemicals while maintaining efficient heat transfer.
The duplex PT100 (3+3 wire) configuration allows two independent sensing elements within a single probe, making it suitable for redundant measurement, backup instrumentation, or simultaneous connection to two control systems. With Class A accuracy and an operating temperature range of -50°C to +200°C, this sensor is ideal for applications where precision and reliability are critical.
The 12 mm probe diameter offers added mechanical strength for demanding process environments, while the TF/TF/SS braided cable provides resistance to heat, abrasion, and industrial wear. Aavad also offers customization of probe dimensions, cable lengths, PTFE coating thickness, and process connections to meet specific application requirements.
Key Features
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Directly Bonded Teflon (PTFE) Coating Passivates the entire metallic immersion sheath against strong mineral acids, alkalis, and organic solvents while minimizing thermal lag compared to sleeve designs.
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Duplex Dual-Element Construction (3+3 Wire) Houses two independent Class A PT100 elements inside one probe sheath, providing 100% signal redundancy or simultaneous dual-instrument feedback.
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Heavy-Duty 12mm SS316 Sheath ($12text{mm}times 75text{mm}$) Larger outer diameter sheath provides increased structural rigidity, mechanical impact protection, and enhanced surface contact in turbulent mixing tanks.
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Precision Class A Temperature Accuracy High-precision platinum elements ensure tight calibration tolerances ($pm 0.15^circtext{C}$ at $0^circtext{C}$) for critical reaction chemistry.
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Armored High-Temperature Lead Cable (3m TF/TF/SS) Teflon-insulated internal conductors encased in a stainless steel wire braid defend against chemical fumes, acid splatters, and mechanical cuts.
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Universal Instrumentation Compatibility Standard 6-wire lead output interfaces seamlessly with dual-input PLCs, DCS architectures, PID controllers, and digital indicators.
Applications
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Chemical Processing & Corrosive Fluid Lines Temperature measurement in concentrated acid lines, caustic wash systems, and pickling baths.
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Pharmaceutical & Biotech Manufacturing Sanitizable temperature tracking in aggressive cleaning-in-place (CIP) and chemical neutralization units.
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Electroplating & Chemical Etching Tanks Direct immersion temperature sensing in harsh plating solutions and acid etching baths.
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Industrial Water & Effluent Treatment Facilities Continuous thermal monitoring in corrosive wastewater neutralization and chemical dosing tanks.
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Petrochemical & Refinery Auxiliaries Chemical injection lines and catalyst preparation tanks requiring corrosion resistance combined with dual-signal safety redundancy.
Datasheet
FAQs
1. What is a PTFE Coated Duplex PT100 RTD Sensor?
A PTFE Coated Duplex PT100 RTD Sensor is a PT100 Resistance Temperature Detector (RTD) that incorporates two independent PT100 sensing elements within a single SS316 probe protected by a bonded PTFE coating. This design provides redundant temperature measurement while offering enhanced resistance to corrosive chemicals, making it suitable for demanding industrial process applications.
2. Why is PTFE Coating used on an RTD Sensor?
PTFE (Polytetrafluoroethylene) coating provides excellent resistance to many acids, alkalis, solvents, and aggressive process chemicals while protecting the underlying SS316 stainless steel probe from corrosion. It also offers a non-stick, chemically inert surface that helps extend sensor life in harsh industrial environments.
3. Why choose Aavad PTFE Coated Duplex PT100 RTD Sensors?
Aavad PTFE Coated Duplex PT100 RTD Sensors combine Class A accuracy, duplex sensing redundancy, bonded PTFE chemical protection, SS316 stainless steel construction, and customizable probe designs to deliver reliable and long-lasting temperature measurement in chemical processing, pharmaceutical manufacturing, water treatment, food processing, electroplating, and other corrosive industrial applications.
