Fluke Calibration 5628-20-S High Temperature PRT

Overview

The Fluke Calibration 5628-20-S is an affordable, high-temperature platinum resistance thermometer providing secondary calibration standards for furnace, block calibrator, and laboratory applications. Operating to 660°C with ITS-90 compliance, it eliminates the contamination risks of regular PRTs at elevated temperatures while avoiding the expense and fragility of SPRTs. Accredited calibration is included with complete ITS-90 constants and resistance tables.

Key Features

• Temperature range from -200°C to 661°C
• Meets all ITS-90 requirements for resistance ratios
• Nominal resistance 25.5Ω with 305 mm (12 in) length
• RTPW drift less than 20mK after 500 hours at 660°C
• Strain-free sensor design by Hart Scientific engineers
• Internal protection reduces contamination risk above 500°C
• Inexpensive alternative to delicate SPRTs
• Accredited calibration with ITS-90 constants included

Applications

• Furnace and block calibrator temperature verification
• Temperature calibration above normal PRT range (above 420°C)
• Working and check standards for calibration labs
• Aluminum point and secondary temperature standards

Included Accessories

• Accredited calibration certificate
• ITS-90 constants and resistance-versus-temperature table
• Spade lugs for connection