Fluke Calibration 5615-12-B Secondary PRT Probe

Overview

The Fluke Calibration 5615-12-B is a secondary reference platinum resistance thermometer (PRT) designed for laboratory and industrial temperature calibration applications. It features an Inconel 600 sheath measuring 305 mm (12 inches) long with a 6.35 mm (0.250 inch) diameter, providing durability and accuracy for critical temperature measurement work.

The probe bridges the gap between high-precision SPRTs (Standard Platinum Resistance Thermometers) and industrial RTDs (Resistance Temperature Detectors), offering the stability of a reference-grade instrument with improved durability compared to traditional SPRTs.

Key Features

• Secondary reference temperature standard with ±0.013 °C short-term accuracy at 0.01 °C
• Reference-grade platinum wire (99.999% pure) for excellent long-term stability
• Inconel 600 sheath, 305 mm long × 6.35 mm diameter for enhanced durability
• Four-wire electrical configuration eliminating lead-wire resistance effects
• Fully supported sensing element with minimal hysteresis
• Ultrahigh-purity ceramic case with hermetic glass seal for output stability
• Pre-calibrated with ITS-90 coefficients for immediate use
• Excellent for comparison calibrations in Hart dry-well equipment

Applications

• Laboratory temperature calibration and comparison standards
• Industrial temperature measurement in harsh environments
• Comparison calibrations with Hart readout devices (1529, 1560, 1502A)
• Pharmaceutical and medical facility calibration
• Secondary laboratory temperature reference standards

Included Accessories

• Accredited calibration certificate
• Sensor resistance printout in 1 °C increments