WZ-K Armored Resistance Temperature Detector (RTD)

About WZ-K RTD

HollySys WZ-K Armored Resistance Temperature Detectors (RTD) are constructed with multiple (typically 3 or 6) nickel wire core conductors, encapsulated in inorganic insulation and a metal sheath, then compacted into a solid unit. This assembly, known as armored thermal resistance material, is integrated with a resistance temperature sensing element, insulating filler, and a metal protective tube via argon arc welding-forming an armored RTD temperature sensor designed for precise temperature measurement. The product primarily consists of a junction box, an internal lead assembly, and the armored RTD sensing element, along with various mounting fixtures. Its temperature-sensitive component functions similarly to that of a standard assembled RTD. When paired with display instruments or control systems, the armored RTD serves as a temperature sensor for measuring and regulating temperatures in industrial processes (-200°C to +650°C), including those involving liquids, vapors, gaseous media, and solid surfaces. It is widely used in the petroleum, chemical, power, metallurgical, food processing, and research sectors.

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Product Features

Compact and Flexible Design

Measuring end diameter as small as 3 mm, with lengths extendable to several meters
Rapid Thermal Response

Minimizes dynamic error for accurate real-time measurements
Material Efficiency

Optimized design reduces consumption of precious metals (e.g., silver wire)
Bendable Installation

Flexible enough for use in tight spaces (excluding the area within 50 mm of the sensing tip)
Excellent Sealing and Mechanical Properties

Resistant to pressure, vibration, and impact
Superior Temperature Resistance

Operates reliably under both low- and high-temperature conditions
Standards Compliance

Conforms to JB/T 8622-1997 (Industrial Platinum RTD Technical Standard) and is equivalent to IEC 751