Description
RTD with Terminal Head (Model APIS-6×1500) is a long-length PT100 RTD temperature sensor engineered for accurate and reliable industrial temperature measurement in deep tanks, silos, reactors, vessels, and other difficult-to-reach process points. Featuring a Simplex PT100 Class A sensing element, durable 6 mm OD × 1500 mm SS316 stainless steel probe, and an adjustable 1/2″ BSP process connection, this industrial RTD sensor provides precise and repeatable temperature measurement across an operating range of -50°C to +300°C. The extended 1500 mm probe enables temperature sensing at deeper measurement points, while the adjustable process connection allows installers to configure the required insertion depth during installation for compatible process equipment.
Designed for continuous industrial process temperature monitoring, the Model APIS-6×1500 features a rugged IP67 die-cast aluminium terminal head with threaded cap and security chain, providing reliable protection for electrical terminations against dust and moisture. The Simplex PT100 configuration provides a dependable single temperature signal for integration with compatible PLCs, DCS, SCADA systems, temperature transmitters, controllers, and indicators, making it a practical alternative where duplex sensor redundancy is not required. Manufactured by Aavad Instrument, this long-length RTD with terminal head is ideal for chemical processing, utilities, water treatment, manufacturing, process automation, and industrial plants requiring accurate PT100 temperature measurement at deep or hard-to-access locations.
Key Features
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Extended 1500 mm Probe Geometry Long-reach design built for direct deep immersion inside industrial processing columns, chemical storage tanks, and tall silos.
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Simplex Single-Signal Configuration Features a single, high-reliability Pt100 platinum loop that serves as a streamlined, budget-friendly alternative to duplex models when signal redundancy is not required.
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Adjustable BSP Process Connection Equipped with a sliding 1/2″ BSP compression connector that allows field installers to dynamically tune and lock the probe depth on-site.
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High-Precision Class A Compliance Premium-grade platinum resistance element matches strict international DIN-IEC tolerances ($pm0.15^circtext{C}$ at $0^circtext{C}$) to guarantee tight process tracking.
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Rugged IP67 Weatherproof Head Ultra-rugged die-cast aluminum terminal enclosure ensures complete dust-tight performance and waterproof sealing against harsh outdoor weather.
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Corrosion-Resistant SS316 Sheath Heavy-duty marine-grade stainless steel probe body offers excellent protection against physical wear, scale buildup, and oxidation.
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Broad Spectrum Thermal Tracking Provides stable and highly predictable temperature measurements across an operational range spanning from -50°C to 300°C.
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Standardized 3/4″ ET Cable Entry Built with a single 3/4″ ET conduit entry path to facilitate straightforward, secure field wiring for plant engineering teams.
Applications
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Deep Process Tanks and Industrial Silos Reliable continuous temperature monitoring within large-scale liquid storage reservoirs, granular silos, and raw material blending vats.
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Long Vertical Pipelines and Duct Systems Core-stream temperature tracking inside large-diameter industrial exhaust stacks, air ducts, and high-volume fluid transport pipelines.
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Single-Signal Non-Critical Process Loops Streamlined thermal profiling in secondary process stages, cooling loops, and utilities where basic monitoring is needed without backup elements.
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Retrofit Processing Plant Infrastructure Drop-in instrumentation replacement for legacy processing plant equipment where on-site dimension flexibility is necessary to match aging tank nozzles.
Datasheet
FAQs
1. What is an RTD with Terminal Head?
An RTD with Terminal Head is a PT100 Resistance Temperature Detector (RTD) whose electrical resistance changes predictably and repeatably with temperature, enabling highly accurate temperature measurement. Aavad’s Model APIS features a screw-cover terminal head, an adjustable 1/2″ BSP process connection, Class A accuracy, and an operating temperature range of -50°C to +300°C.
2. Why does the RTD Resistance-Temperature relationship matter for accuracy?
Platinum RTD elements have a well-defined and highly repeatable resistance-versus-temperature relationship, allowing them to deliver excellent long-term stability, high measurement accuracy, and consistent performance. This makes PT100 RTD sensors ideal for industrial applications requiring precise and reliable temperature monitoring.
3. What is the standard probe length available for this RTD Sensor?
The standard configuration, Model APIS-6×1500, features a 6 mm outer diameter (OD) probe with a 1500 mm insertion length. It also includes a die-cast aluminum IP67 terminal head, making it suitable for deep tanks, vessels, reactors, and other long-reach industrial temperature measurement applications.
4. Can this Terminal-Head RTD be used outdoors or with an Integral Transmitter?
Yes. Aavad’s RTD with Terminal Head can be manufactured for outdoor installations and can also be supplied with an integral temperature transmitter, providing improved signal transmission and enhanced protection of the sensor termination point in demanding industrial environments.
5. What applications suit an RTD with Terminal Head?
RTD Sensors with Terminal Heads are widely used in industrial process monitoring and control, laboratory temperature measurement, HVAC and refrigeration systems, environmental monitoring, chemical, petrochemical, pharmaceutical processing, power generation, boilers, and energy systems, where accurate and dependable temperature measurement is essential.
