Description
Mineral Insulated PT100 RTD Sensor with Transition Joint (Model APES-6×150) is designed for reliable and accurate temperature measurement in demanding industrial environments. The sensor features a mineral-insulated (MI) construction, where the sensing element is surrounded by compacted magnesium oxide (MgO), providing excellent thermal conductivity, electrical insulation, and mechanical durability.
A transition joint between the SS316 probe and the flexible cable acts as a strain-relief, helping reduce mechanical stress at the cable entry and improving long-term reliability in applications involving vibration or repeated handling.
This model incorporates a Simplex PT100, 3-wire sensing element with Class A accuracy and operates from -50°C to +400°C. The 150 mm SS316 sheath and TF/TF/SS insulated cable make it suitable for chemical processing, petrochemical plants, refineries, boilers, reactors, pipelines, and general industrial process monitoring.
Aavad also manufactures customized mineral insulated RTD sensors with different probe lengths, cable lengths, sensing configurations, and process connections for OEM and replacement applications.
Key Features
-
Compacted Mineral Insulation (MgO Core) High-purity magnesium oxide powder offers superior shock resistance, thermal transfer, and internal element stability under severe vibration.
-
Mid-Length 150mm Sheath Profile Ideally sized probe length for medium-depth thermowells, pipe headers, and process vessel walls.
-
Class A Precision Accuracy Delivers tight measurement tolerances ($pm 0.15^circtext{C}$ at $0^circtext{C}$) for high-accuracy single-channel control and data logging.
-
Strain-Relief Transition Joint Transition sleeve insulates soldered conductor joints from mechanical pulling, bending, and vibration-induced stress.
-
Corrosion-Resistant SS316 Outer Sheath Provides long-term resistance to aggressive fluids, industrial oils, and oxidative process gases.
-
High-Temperature TF/TF/SS Armored Cable (1m) Premium Teflon conductor insulation wrapped in a stainless steel wire braid guards against abrasion, cuts, and extreme ambient heat.
Applications
-
Chemical & Petrochemical Process Control Temperature monitoring in reactors, distillation columns, and chemical transfer lines.
-
Oil & Gas Refineries & Pipelines Measuring fluid thermal profiles across pump discharge headers, separators, and storage tanks.
-
Power Plants & Boiler Systems Steam line monitoring, boiler feedwater heaters, and turbine lubrication oil lines.
-
Industrial Machinery & Compressor Skids Bearing housing temperature tracking on high-vibration rotating machinery and heavy compressors.
-
High-Accuracy Single-Loop Control Applications requiring Class A single-signal precision with rugged transition-joint durability.
Datasheet
FAQs
1. What is a Mineral Insulated PT100 RTD Sensor?
A Mineral Insulated PT100 RTD Sensor is a PT100 Resistance Temperature Detector (RTD) that uses compacted magnesium oxide (MgO) insulation around the sensing element within a stainless steel sheath. This construction provides accurate, stable, and reliable temperature measurement while offering excellent durability for demanding industrial applications.
2. What are the advantages of Mineral Insulation?
Mineral insulation (MgO) offers excellent thermal conductivity, electrical insulation, mechanical strength, vibration resistance, and high-temperature stability. These properties help improve measurement accuracy, protect the sensing element, and make the RTD sensor suitable for harsh industrial environments with continuous operation.
3. What is the purpose of the Transition Joint?
The transition joint provides effective strain relief between the rigid mineral-insulated probe and the flexible extension cable. It helps reduce cable-flex stress, vibration, and mechanical strain at the cable entry point, improving sensor durability and extending the service life of the RTD sensor.
