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Fluke Calibration 5609-20-S Secondary PRT Probe

Fluke Calibration · Model: 5609-20-S Made to order
Fluke Calibration 5609-20-S Secondary PRT Probe
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Fluke Calibration 5609-20-S secondary PRT probe offers -200°C to 670°C range with ±10 mK stability and reference-grade platinum sensor in Inconel sheath.

Model 5609-20-S
Manufacturer Fluke Calibration
Category Temperature Probes & Sensors
Availability Made to order

Overview

The Fluke Calibration 5609-20-S is a secondary reference platinum resistance thermometer (PRT) probe delivering exceptional stability and precision across an extended temperature range. Designed with reference-grade platinum sensors and four-wire connections, it provides accurate temperature measurement with minimal noise and reduced measurement error through its small-diameter sheath.

Key Features

  • Temperature range: -200°C to 670°C
  • Short-term stability: ±10 mK at triple point of water
  • 1/4-inch (6.35 mm) diameter sheath with 12, 15, or 20-inch lengths available
  • Alternative 6 mm diameter with 300, 400, or 500 mm lengths
  • Inconel sheath material for durability and wide temperature range
  • Reference-grade platinum sensor with four-wire connection
  • Minimum 100 mm immersion depth
  • Optional 90° bend at nine inches from tip for dry-well applications

Applications

  • Precision temperature calibration and metrology
  • Industrial temperature measurement standards
  • Sensor validation and comparison
  • Dry-well calibration systems

Included Accessories

  • Certificate of Compliance
Temperature Range -200°C to 670°C
Stability (short-term at triple point) ±10 mK
Sheath Material Inconel
Sheath Diameter Option 1 1/4 inch (6.35 mm)
Sheath Diameter Option 2 6 mm
Available Lengths (1/4" sheath) 12, 15, 20 inches
Available Lengths (6 mm sheath) 300, 400, 500 mm
Minimum Immersion Depth 100 mm
Sensor Type Reference-grade platinum
Connection Four-wire
Fluke Calibration 5609-20-S Secondary PRT Probe

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Fluke Calibration 5609-20-S Secondary PRT Probe

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