Description
Waterproof RTD PT100 Temperature Sensor (Model APES-5×75) is designed for accurate and reliable temperature measurement in applications where the sensing probe remains in continuous contact with liquids. Its fully sealed SS316 stainless steel construction and 1/4″ male NPT threaded connection make it suitable for installation in tanks, reservoirs, pipelines, water treatment systems, and other industrial process equipment requiring dependable immersion temperature monitoring.
Unlike general-purpose RTD sensors that may only tolerate occasional moisture or wash-down conditions, this sensor is engineered for continuous immersion in compatible liquids. The Class A PT100 sensing element provides high measurement accuracy and repeatability across a temperature range of -50°C to 400°C, making it suitable for industrial process control, HVAC systems, refrigeration, water treatment, food and beverage processing, and OEM equipment.
The TF/TF/SS (Teflon insulated with Stainless Steel braided) cable provides resistance to moisture, chemicals, oils, abrasion, and mechanical wear, supporting reliable operation in demanding industrial environments. The standard 3-wire configuration helps reduce errors caused by lead wire resistance and is widely compatible with PLCs, DCS systems, RTD transmitters, and industrial temperature controllers.
As a leading RTD sensor manufacturer in India, Aavad Instrument Pvt. Ltd. manufactures standard and customized waterproof immersion RTD sensors with various insertion lengths, process connections, sensing elements (PT100/PT1000), cable constructions, and accuracy classes for OEM and industrial applications.
Key Features
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Fully Hermetic Immersion-Rated Sealing Engineered for continuous submersion in water, oils, and aqueous solutions without moisture creeping into the sensor head.
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Class A Precision PT100 Element Delivers tight accuracy ($pm 0.15^circtext{C}$ at $0^circtext{C}$) for critical temperature control and environmental monitoring.
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Standard 1/4″ NPT Process Thread Features a 1/4″ Male NPT pipe thread for fast, leak-tight installation directly into pre-threaded vessel wall ports or pipe tees.
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Corrosion-Resistant SS316 Probe Body Premium grade stainless steel construction withstands harsh wash-down conditions, organic acids, and continuous water exposure.
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3-Meter Armored Extension Lead (TF/TF/SS) Double Teflon-insulated wiring wrapped in an outer stainless steel wire braid provides chemical resistance and mechanical durability over long cable runs.
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3-Wire Noise-Resistant Signal Loop 3-wire RTD circuit automatically compensates for lead wire resistance, maintaining measurement stability across long distances.
Applications
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Water Tanks, Reservoirs & Pipelines Continuous liquid level temperature tracking in municipal and industrial fluid networks.
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Water Treatment & Aquaculture Systems Submerged thermal monitoring in filtration tanks, aeration basins, and aquatic breeding facilities.
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HVAC & Humid Environmental Monitoring Reliable temperature tracking in cooling towers, chiller loops, and air washers subject to condensation.
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Food & Beverage Wash-down Areas Sanitized fluid lines, CIP (Clean-In-Place) systems, and processing tanks requiring moisture-sealed instrumentation.
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Cold Storage & Refrigeration Cold room and glycol tank monitoring where atmospheric condensation often damages standard sensors.
Datasheet
FAQs
1. What is a Waterproof PT100 RTD Sensor?
A Waterproof PT100 RTD Sensor is a sealed Resistance Temperature Detector (RTD) designed to accurately measure the temperature of liquids, water, and wet process environments while protecting the PT100 sensing element from moisture ingress. Its waterproof construction ensures reliable performance in continuous or frequent immersion applications.
2. What is the difference between a Waterproof RTD and a Standard RTD?
A waterproof RTD features a sealed construction specifically engineered for continuous or frequent exposure to liquids and moisture. In contrast, many standard RTDs are intended for dry process environments or occasional wash-down applications and may not be suitable for permanent immersion.
3. Can this Sensor remain permanently immersed in water?
Yes. A Waterproof PT100 RTD Sensor can remain permanently immersed in water provided the liquid is compatible with SS316 stainless steel and the installation complies with the product’s specified operating limits. For corrosive or aggressive liquids, chemical compatibility should always be verified before installation.
4. Where are Waterproof PT100 RTD Sensors commonly used?
Waterproof PT100 RTD Sensors are widely used in water tanks, reservoirs, pipelines, water treatment plants, refrigeration systems, food and beverage processing, aquaculture, dairy plants, chillers, cooling systems, and industrial liquid process applications where reliable temperature measurement in wet environments is required.
