Description
Flameproof RTD Sensor Standard (Model APFS-S-1) is a high-performance PT100 flameproof temperature sensor designed for direct installation in industrial process equipment operating in appropriately classified hazardous areas. Featuring a Simplex PT100 Class A sensing element, durable SS316 stainless steel probe, rugged IP67 flameproof die-cast aluminium terminal head, and a fixed 1/2″ BSP(M) process connection, this industrial RTD sensor provides accurate and repeatable temperature measurement across an operating range of -50°C to +400°C. Unlike bare-probe RTD assemblies, the APFS-S-1 is supplied as a complete direct-mount temperature sensor that can be installed into compatible threaded process connections without requiring a separate thermowell, making installation faster and more straightforward where direct immersion is appropriate.
Designed for reliable performance in demanding industrial environments, the fixed threaded process connection ensures consistent installation depth while the mineral-insulated PT100 sensing element provides stable temperature measurement under vibration and repeated thermal cycling. Available with 2-wire, 3-wire, or 4-wire PT100 configurations, the sensor can be integrated with compatible temperature transmitters, PLCs, DCS, SCADA systems, controllers, and indicators. Manufactured by Aavad Instrument, this flameproof RTD temperature sensor is ideal for oil and gas, refineries, petrochemical plants, power generation facilities, process industries, pumps, compressors, rotating machinery, and industrial equipment requiring dependable temperature monitoring in hazardous operating environments.
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Additional information
| Weight |
0.3 kg |
| Dimensions |
40 × 15 × 15 cm |
| Configuration |
2 WIRE, 3 WIRE, 4 WIRE
|
Key Features
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Integrated Fixed 1/2″ BSP(M) Thread Built-in process connection enables fast, direct-mount installation into pipelines and vessel ports without a separate thermowell.
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Certified Flameproof Aluminum Enclosure Heavy-walled, explosion-resistant connection head engineered to completely contain internal arcs or sparks in hazardous areas.
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Premium-Grade Class A Verification High-integrity platinum sensing element complies with strict international tolerances ($pm0.15^circtext{C}$ at $0^circtext{C}$) to guarantee accurate data tracking.
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High Vibration and Mechanical Shock Tolerance Compacted mineral insulation stabilizes internal wiring against the continuous shaking of industrial machinery.
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Flexible 2, 3, or 4-Wire Wiring Footprints Adaptable terminal layouts allow smooth integration with local displays, plant PLCs, or precision remote transmitters.
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Corrosion-Proof Marine-Grade SS316 Body Rugged stainless steel sheath provides exceptional defense against pitting, rust, scaling, and high-temperature oxidation.
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Weatherproof IP67 Environmental Sealing Dust-tight terminal block assembly handles aggressive wash-downs, high humidity, and temporary deep water submersion.
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Optimized 200 mm Direct Insertion Reach Sized perfectly for standard-depth pipelines and process machinery nozzles to intercept core thermal currents.
Applications
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Direct-Mount Hazardous Area Thermal Tracking Threaded in-line monitoring across chemical processing networks, distillation lines, and gas distribution lines.
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High-Vibration Machinery and Utility Manifolds Reliable temperature profiling on large industrial pumps, high-speed gas compressors, and power generation turbines.
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Refining and Petrochemical Processing Infrastructure Volatile fluid tracking within classified areas requiring rigid, leak-tight process entry seals.
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Power Generation Control and Cooling Loops High-accuracy monitoring within lubrication oil lines, high-pressure steam pipes, and coolant systems.
Datasheet
FAQs
1. What is the Flameproof RTD Sensor Standard model built for?
The Flameproof RTD Sensor Standard is an explosion-proof PT100 Resistance Temperature Detector (RTD) specifically designed for high-vibration industrial environments. Aavad’s Model APFS uses mineral-insulated (MgO) PT100 sensing technology, providing significantly greater vibration resistance, mechanical durability, and long-term measurement stability than conventional RTD sensors. It is ideal for refineries, petrochemical plants, power generation equipment, and heavy industrial machinery.
2. What are the specifications of the Flameproof RTD Sensor Standard?
Aavad’s Flameproof RTD Sensor Standard (Model APFS) features a simplex PT100 sensing element with Class A accuracy and an operating temperature range of -50°C to +400°C. It is manufactured with an SS316 stainless steel sheath, compacted Magnesium Oxide (MgO) insulation, a 6 mm outer diameter (OD), and a standard probe length of 200 mm below the thread (with other lengths such as 300 mm also available).
3. What Process Connection and Cable Entry does this Sensor use?
The sensor is supplied with a 1/2″ BSP (Male) fixed process connection, a die-cast aluminum flameproof protection head featuring a threaded cap and retaining chain rated IP67, and a single 1/2″ NPT cable entry for secure installation in hazardous industrial environments.
4. Is this Sensor available in different wire configurations?
Yes. Aavad Instrument manufactures the Flameproof PT100 RTD Sensor in 2-wire, 3-wire, and 4-wire configurations, allowing compatibility with a wide range of temperature controllers, PLCs, DCS systems, transmitters, and industrial automation equipment.
5. What is the practical benefit of Flameproof certification on a Standard RTD Sensor?
Flameproof (Explosion-Proof) certification ensures that the sensor’s enclosure is designed to contain any internal electrical spark or ignition, preventing it from igniting flammable gases or vapors in the surrounding atmosphere when installed according to applicable standards. This makes the sensor suitable for use in classified hazardous areas such as oil & gas facilities, petrochemical plants, chemical processing industries, and other explosive environments.
