The Fluke Calibration 5615-12-D is a high-performance Platinum Resistance Thermometer (PRT) designed for precise temperature measurement in industrial and laboratory settings. As a secondary reference standard, it bridges the gap between primary laboratory standards and everyday industrial applications, providing reliable and accurate readings.
Key Features & Highlights
- High Accuracy: Short-term accuracy of ±0.013 °C at 0.01 °C ensures dependable measurements.
- Reference-Grade Platinum Element: Constructed with 99.999% pure platinum wire for excellent stability and repeatability.
- Durable Inconel 600 Sheath: 12-inch (305 mm) sheath with 6.35 mm diameter provides robustness and resistance to harsh environments.
- Four-Wire Configuration: Eliminates lead-wire resistance effects for accurate readings.
- Fully Supported Sensing Element: Reduces hysteresis and enhances durability compared to SPRTs.
- Hermetic Glass Seal: Protects the element from moisture and contaminants, ensuring long-term stability.
- ITS-90 Calibration: Comes with ITS-90 coefficients, compatible with popular readout devices like Hart 1529, 1560, and 1502A.
Applications
The 5615-12-D is ideal for calibration laboratories, quality control, and industrial process monitoring where accurate temperature measurement is critical. It serves as a reliable transfer standard between primary standards and working instruments.





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