Description
Mineral Insulated RTD Sensor (Model APWD) is a high-accuracy duplex PT100 temperature sensor designed for reliable industrial process temperature measurement in non-hazardous and non-classified areas. Featuring two independent 3-wire PT100 sensing elements (3+3 wire) with Class A accuracy, compacted MgO mineral insulation, a durable SS316 stainless steel sheath, and an adjustable 1/2″ BSP process connection, this industrial RTD sensor delivers stable and repeatable temperature measurement across a wide operating range of -50°C to +400°C. The duplex configuration provides two independent temperature signals from a single measurement point, making it ideal for applications requiring simultaneous process control and monitoring, indication, data logging, alarm, or redundant temperature measurement.
Designed as a versatile general-purpose mineral insulated RTD sensor, the Model APWD features a 300 mm standard probe length and an adjustable process connection that allows the insertion depth to be configured during installation for compatible tanks, vessels, pipelines, machinery, and process equipment. The standard IP65 die-cast aluminium terminal head provides reliable protection for field terminations in non-classified industrial environments without the additional cost of a flameproof enclosure. Manufactured by Aavad Instrument, this duplex PT100 RTD sensor is suitable for industrial process control, laboratory measurement, HVAC systems, automation equipment, utilities, manufacturing plants, and applications requiring two independent temperature signals from one robust mineral-insulated sensor assembly.
Additional information
| Weight |
0.3 kg |
| Dimensions |
40 × 15 × 15 cm |
Key Features
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Duplex 3+3 Wire Redundant Elements Houses two completely independent platinum circuits to provide seamless signal backup, cross-checking, and control loop safety redundancy.
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Economical Non-Flameproof Design Smart, budget-friendly construction that eliminates hazardous-area equipment premiums for standard, non-classified facility loops.
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Adjustable 1/2″ BSP Compression Thread Outfitted with a sliding process connector that allows field technicians to customize and lock the exact probe insertion depth during installation.
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High-Tolerance Mineral Insulation Packed with highly compacted MgO powder to protect the internal wiring elements from mechanical fatigue and physical machinery vibration.
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Precision Class A Compliance Premium platinum sensor core complies with strict international standards ($pm0.15^circtext{C}$ at $0^circtext{C}$) to guarantee tight, repeatable thermal tracking.
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Corrosion-Resistant SS316 Core Sheath Heavy-duty marine-grade stainless steel body yields outstanding protection against scaling, rust, and chemical degradation.
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Industrial IP65 Terminal Enclosure Weatherproof die-cast aluminum connection head keeps out airborne plant dust, humidity, and process moisture.
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Practical 300 mm Probe Geometry Features an ideal 300 mm insertion reach, making it highly compatible with standard industrial pipelines, mixing vats, and utility manifolds.
Applications
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General Industrial Duplex Temperature Sensing Reliable dual-element monitoring in non-hazardous manufacturing zones, production machinery, and industrial process lines.
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Laboratory Testing and Measurement Systems High-precision laboratory test loops requiring independent primary data tracking alongside secondary verification loops.
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Commercial HVAC and Building Automation Continuous temperature tracking within centralized heat exchangers, large-scale air handling systems, and water chilling loops.
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Standard Process Automation Equipment Integration into original equipment manufacturer (OEM) machinery layouts that require dual-element sensors for fail-safe operation.
Datasheet
FAQs
1. What is a Mineral-Insulated RTD Sensor?
A Mineral-Insulated RTD Sensor is a PT100 Resistance Temperature Detector (RTD) that uses compacted Magnesium Oxide (MgO) mineral insulation enclosed within an SS316 stainless steel sheath. This construction provides excellent mechanical strength, electrical insulation, vibration resistance, and reliable temperature measurement. Aavad’s Model APWD is a duplex (3-wire + 3-wire), Class A PT100 RTD with an operating temperature range of -50°C to +400°C.
2. What is the Process Connection on Aavad’s Mineral-Insulated RTD Sensor?
The sensor features a 1/2″ BSP (Male) adjustable process connection, a die-cast aluminum protection head with a threaded cap and retaining chain rated IP65, a ¾” ET cable entry, and a nickel-plated ceramic terminal block for secure and reliable industrial installation.
3. What are the standard dimensions of this Mineral-Insulated RTD Sensor?
The standard Aavad Model APWD-6×300 features a 6 mm outer diameter (OD) and a 300 mm probe length, making it a versatile mid-length RTD suitable for a wide range of industrial temperature measurement applications.
4. Why is a Duplex configuration useful in a Mineral-Insulated RTD Sensor?
The duplex (3-wire + 3-wire) PT100 configuration provides two independent temperature sensing elements within a single probe. This allows one sensing element to be used for primary process control, while the second can simultaneously support backup indication, redundant monitoring, data logging, or connection to a separate PLC, DCS, or SCADA system without requiring an additional installation point.
5. What applications suit a Mineral-Insulated RTD Sensor?
Mineral-Insulated RTD Sensors are widely used in industrial temperature sensing, laboratory measurement systems, HVAC equipment, industrial automation, process control systems, OEM machinery, chemical plants, power generation, and manufacturing industries, where stable, accurate, and repeatable temperature measurement is essential.
