Description
Mineral Insulated RTD with Terminal Head (Model APFS) is a high-accuracy PT100 RTD temperature sensor designed for reliable industrial temperature measurement in demanding and high-vibration process environments. Featuring a Simplex PT100 Class A sensing element, mineral-insulated 6 mm OD × 305 mm SS316 stainless steel probe, and a rugged IP67 flameproof die-cast aluminium terminal head, this industrial RTD sensor provides stable and repeatable temperature measurement across an operating range of -50°C to +400°C. Supplied without a dedicated process connection, the bare-probe design is suitable for installation inside a compatible thermowell, protection tube, compression fitting, or customer-supplied mounting arrangement, providing installation flexibility for existing and customized industrial temperature measurement systems.
The mineral-insulated construction provides mechanical durability and stable sensor performance under vibration and repeated thermal cycling, making the APFS particularly suitable for pumps, compressors, turbines, rotating machinery, and heavy process equipment where dependable temperature monitoring is essential. 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 mineral insulated RTD sensor with terminal head is ideal for refining, petrochemical, oil and gas, power generation, and industrial process applications requiring accurate PT100 temperature sensing in existing thermowells or customized mounting assemblies.
Additional information
| Weight |
0.3 kg |
| Dimensions |
40 × 15 × 15 cm |
| Configuration |
2 WIRE, 3 WIRE, 4 WIRE
|
Key Features
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Bare Threadless Probe Architecture Configured without an integrated process thread to allow seamless drop-in insertion into existing plant thermowells or specialized compression blocks.
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High Vibration and Shock Tolerance Compacted mineral insulation protects the internal Pt100 element from mechanical fatigue caused by rotating or reciprocating equipment.
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Certified Flameproof Aluminum Head Heavy-walled explosion-resistant enclosure engineered to contain internal arcs and sparks safely in classified hazardous environments.
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Standard 305 mm Thermowell Fit Scaled with a highly practical 305 mm insertion depth and 6 mm outer diameter to seamlessly match standard industrial protection wells.
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Flexible 2, 3, or 4-Wire Configurations Highly adaptable wiring layouts make it easy to match local digital indicators, standard plant PLCs, or precision 4-wire transmitter loops.
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High-Precision Class A Compliance Premium-grade platinum sensor core adheres to strict international tolerances ($pm0.15^circtext{C}$ at $0^circtext{C}$) to guarantee dead-accurate thermal tracking.
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Ultra-Rugged IP67 Environmental Sealing Weatherproof die-cast terminal block housing guarantees dust-proof tracking and survival against temporary water submersion.
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Durable Marine-Grade SS316 Sheath Heavy-duty stainless steel outer skin delivers outstanding resistance to corrosion, scaling, and high-temperature oxidation.
Applications
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Refining and Petrochemical Processing Infrastructure In-line temperature tracking inside volatile fluid cracking units, distillation columns, and chemical distribution manifolds.
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High-Vibration Rotating Machinery and Utilities Thermal monitoring on heavy-duty industrial pumps, large gas compressors, steam turbines, and reciprocating engine blocks.
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Power Generation Control Loops Reliable core-stream temperature sensing inside high-pressure boiler lines, exhaust ducts, and oil cooling systems.
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Plant Maintenance Retrofit Programs Direct replacement element for aging or failed RTD probes inside pre-installed, high-pressure thermowell assemblies.
Datasheet
FAQs
1. What makes this Mineral-Insulated RTD suitable for high-vibration equipment?
Mineral-Insulated (MI) PT100 RTD Sensors use compacted Magnesium Oxide (MgO) insulation that provides exceptional mechanical strength, vibration resistance, and thermal stability. This construction enables Aavad’s Model APFS to withstand significantly higher vibration levels than conventional RTD sensors, making it ideal for refineries, petrochemical plants, power generation equipment, and heavy industrial machinery.
2. What are the specifications of this Mineral-Insulated RTD with Terminal Head?
Aavad’s Model APFS-6×305 is a simplex PT100 RTD Sensor with Class A accuracy and an operating temperature range of -50°C to +400°C. It features an SS316 stainless steel sheath, compacted Magnesium Oxide (MgO) insulation, a 6 mm outer diameter (OD), and a 305 mm probe length for reliable industrial temperature measurement.
3. What Protection Head does this Sensor use?
The sensor is equipped with a die-cast aluminum flameproof protection head featuring a threaded cap and retaining chain, rated IP67. It also includes a single 1/2" NPT cable entry and a nickel-plated ceramic terminal block for dependable operation in hazardous industrial environments.
4. Can this Sensor be configured as 2-wire, 3-wire, or 4-wire?
Yes. Aavad Instrument manufactures this Mineral-Insulated 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 instrumentation.
5. What industries use Mineral-Insulated RTDs with Terminal Heads for vibration resistance?
Mineral-Insulated RTD Sensors with Terminal Heads are widely used in refineries, petrochemical plants, power generation facilities, energy systems, heavy industrial machinery, turbines, compressors, pumps, and other high-vibration process equipment, where long-term durability, vibration resistance, and accurate temperature measurement are essential.
