Description
NABL Traceable Standard RTD Sensor (Model APWD-6×1500) is a long-length duplex PT100 RTD temperature sensor designed for calibration, reference measurement, and industrial applications where documented measurement traceability is required. Featuring two independent 3-wire PT100 sensing elements (3+3 wire) with Class A accuracy, a durable 6 mm OD × 1500 mm SS316 stainless steel probe, and an adjustable 1/2″ BSP process connection, this standard RTD sensor provides stable and repeatable temperature measurement across an operating range of -50°C to +300°C. The duplex construction enables independent temperature signals for cross-checking, verification, monitoring, or redundancy, while the extended 1500 mm probe makes the sensor suitable for deep calibration baths, reference wells, tall vessels, and long-immersion temperature measurement applications.
Designed for NABL-traceable temperature calibration workflows and reference measurement applications, the Model APWD-6×1500 can be supplied with applicable calibration documentation to establish traceability to recognized measurement standards, subject to the scope and requirements of the calibration service. The adjustable process connection allows the insertion depth to be configured for compatible installations, while the rugged IP65 die-cast aluminium terminal head protects electrical terminations in industrial environments. Manufactured by Aavad Instrument, this duplex standard PT100 RTD sensor is suitable for calibration laboratories, quality-control departments, testing facilities, pharmaceutical and process industries, and industrial measurement systems requiring reliable temperature monitoring with documented calibration traceability.
Key Features
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Duplex 3+3 Wire Redundant Circuitry Contains two completely independent platinum elements within a single probe body to enable seamless signal cross-checking, auditing, and fail-safe sensor redundancy.
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Extended 1500 mm Calibration Reach Long-immersion design built to eliminate ambient temperature bleeding in deep calibration baths, thermal wells, and deep vertical process vats.
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Adjustable BSP Compression Connector Outfitted with a sliding 1/2″ BSP fitting that lets metrology and installation crews adjust and lock the exact insertion depth on-site.
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NABL-Traceable Calibration Grade Specifically manufactured to support strict compliance audits, third-party system calibration validation, and quality control tracking to national standards.
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High-Precision Class A Compliance Premium-grade platinum element matches strict international DIN-IEC tolerances ($pm0.15^circtext{C}$ at $0^circtext{C}$) to guarantee tight reference tracking.
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Corrosion-Resistant SS316 Core Sheath Heavy-duty marine-grade stainless steel body yields outstanding protection against structural wear, scaling, and high-temperature chemical oxidation.
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Weatherproof IP65 Terminal Enclosure Heavy-duty die-cast aluminum connection head prevents the intrusion of ambient moisture, airborne plant dust, and process vapors.
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Threaded Cover with Safety Restraint Chain Heavy-duty screw-down terminal lid includes a high-tensile metallic restraint chain to prevent drop loss or tool delays during field verification cycles.
Applications
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NABL-Traceable Calibration Laboratories Serving as a master reference sensor for checking working plant probes inside deep calibration fluid baths and secondary temperature wells.
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Compliance and Audit-Driven Processing Critical thermal profiling inside pharmaceutical, food production, and chemical infrastructure where data traceability is mandated by regulatory bodies.
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High-Safety Redundant Vessel Loops Continuous temperature tracking inside high-value storage tanks, reactors, and mixers where a single sensor failure would disrupt plant uptime.
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Deep Silo and Vertical Column Reference Deep vertical monitoring within large distillation columns, processing towers, and mass storage silos requiring adjustable insertion configurations.
Datasheet
FAQs
1. What does “NABL Traceable” mean for this Standard RTD Sensor?
NABL Traceability means the PT100 RTD Sensor has been calibrated against a reference standard that is traceable to the National Accreditation Board for Testing and Calibration Laboratories (NABL). This provides verifiable, audit-ready calibration documentation, ensuring confidence in measurement accuracy for regulated industries, quality management systems, and compliance audits.
2. What are the specifications of Aavad’s NABL Traceable Standard RTD Sensor?
Aavad’s Model APWD-6×1500 is a duplex (3-wire + 3-wire) PT100 RTD Sensor with Class A accuracy, an operating temperature range of -50°C to +300°C, an SS316 stainless steel sheath, compacted Magnesium Oxide (MgO) insulation, and a 6 mm outer diameter (OD), 1500 mm long probe for reliable industrial temperature measurement.
3. What Protection Head and Process Connection does this Standard RTD Sensor use?
The sensor is equipped with a die-cast aluminum protection head featuring a threaded cap and retaining chain, rated IP65. It also includes a ¾” ET cable entry, a 1/2″ BSP adjustable process connection, and a nickel-plated ceramic terminal block for secure and dependable industrial installation.
4. Why choose a Duplex configuration for a Standard RTD Sensor?
A duplex (3-wire + 3-wire) PT100 RTD Sensor contains two independent sensing elements within a single probe, allowing redundant temperature monitoring, backup indication, dual-loop control, or simultaneous connection to two separate PLC, DCS, or SCADA systems without requiring an additional process connection.
5. Where are NABL Traceable Standard RTD Sensors typically used?
NABL Traceable Standard RTD Sensors are widely used in industrial temperature control, calibration laboratories, pharmaceutical manufacturing, food processing, HVAC systems, industrial automation, OEM equipment, and general process monitoring applications, especially where calibration traceability, regulatory compliance, and documented measurement accuracy are required.
